Transmittal Letter Walnut Creek California 94597 To: Copies: Tel 925 274 1100 Tony Natera/DTSC Bob Gray/PG&E Fax 925 274 1103 Jeff Gove/BAAQMD Don Carpenter/ARCADIS

Home , Diphenyl disulfide

ARCADIS U.S., Inc. 2999 Oak Road Suite 300 Transmittal Letter Walnut Creek California 94597 To: Copies: Tel 925 274 1100 Tony Natera/DTSC Bob Gray/PG&E Fax 925 274 1103 Jeff Gove/BAAQMD Don Carpenter/ARCADIS

Dave Montanari/ARCADIS

Matt Nicely/ARCADIS

Greg Ertel/ARCADIS

Josh Gravenmier/ARCADIS Bridgette DeShields/ARCADIS Chris Lutes/ARCADIS Kim Walsh/ARCADIS

From: Date: Aaron Svitana/ARCADIS February 12, 2012

Subject: ARCADIS Project No.: Draft Data Transmittal B0092353.0003 Preliminary Air Sampling – January 2012 Shell Pond, Bay Point, California

We are sending you: Attached Under Separate Cover Via the Following Items:

Shop Drawings Plans Specifications Change Order Prints Samples Copy of Letter Reports Other: Please see below.

Copies Date Drawing No. Rev. Description Action* 1 2/12/12 DRAFT January 2012 Air Data Tables AS 1 2/12/12 January 2012 Ambient Air and Field-Constructed Flux AS Chamber Laboratory Analytical Data Reports 1 2/12/12 Table 1 Return Water Sample Results from Monthly Phase AS 2 Summary Report to RWQCB for January 2012 1 2/12/12 January 2012 Return Water Laboratory Analytical Data AS Reports

Action* A Approved CR Correct and Resubmit Resubmit Copies AN Approved As Noted F File Return Copies AS As Requested FA For Approval Review and Comment Other:

Mailing Method U.S. Postal Service 1st Class Courier/Hand Delivery FedEx Priority Overnight FedEx 2-Day Delivery Certified/Registered Mail United Parcel Service (UPS) FedEx Standard Overnight FedEx Economy Other: Electronic Mail Page: 1/3

Comments: Please see below.

BACKGROUND

ARCADIS is providing construction and environmental consulting services to PG&E to implement the Corrective Measures Implementation Plan (CMIP) for the Shell Pond and Carbon Black Area property, Bay Point, California. The general scope of this project is to hydraulically dredge and mechanically remove non-native material (NNM) and chemically-affected soil, and create a self-sustaining wetland.

Twenty four (24) hour per day hydraulic dredging operations commenced on January 9, 2012 and were temporarily suspended on January 13, 2012 due to community complaints regarding odors. On January 13, 2012 resources, materials and equipment were mobilized to install a perimeter wind fence and 20-foot high misting system around the perimeter of the materials handling area (MHA). After the perimeter wind fence and misting system was installed and operational, hydraulic dredging operations were resumed the morning of January 19, 2012. Hydraulic dredging was suspended by noon of that day due to additional community complaints regarding odors.

AIR DATA

In response to greater than anticipated odor the week of January 13, 2012 during full-scale hydraulic dredging of Shell Pond and dewatering of NNM, ARCADIS mobilized just after dredging was suspended on January 19, to assess the site conditions and collect ambient air samples from three locations: upwind of the materials handling area (MHA) in the general location of the Carbon Black Area (CBA) (SP-A-UP-011912), downwind at the southwest corner berm of the MHA (SP-A-DOWN-011912), and at the fenceline downwind of the MHA and its odor control systems (SP-A-FENCE-011912). On January 25 and 26, ARCADIS conducted a second round of air sampling from a field-constructed flux chamber operated on site (SP-A-BAG-012512 and SP-A-BAG-012612). A field blank was also collected from the field-constructed flux chamber (SP-A-FB-BAG-012612). Inlet air for the field constructed flux chamber was site air drawn through a small carbon filter.

Ambient air samples were analyzed for volatile organic chemicals (VOCs), semi-volatile organic chemicals (SVOCs) and reduced sulfur compounds. Air samples collected from the field-constructed flux chamber were analyzed for VOCs, SVOCs, petroleum hydrocarbons, reduced sulfur compounds, aldehydes, carboxylic acids and amines.

Enclosed, please find tables summarizing detected concentrations and the complete analytical results, as well as the analytical laboratory reports. Common reference concentrations (e.g., Cal-OSHA Permissible Exposure Limits and Agency for Toxic Substances and Disease Registry Minimal Risk Levels for intermediate duration inhalation exposure) are also provided in the tables. Odor thresholds from a total of seven independent sources are included in the summary tables to provide insight into the odor potential of the analytes. Odor thresholds are highly variable.

RETURN WATER DATA

Per the Corrective Measures Implementation Plan (CMIP – ARCADIS, 2011) and the Regional Water Quality Control Board (RWQCB) Conditional 401 Water Quality Certification (RWQCB, August 12, 2011), return water samples were collected and analyzed for metals, total suspended solids (TSS), total petroleum hydrocarbons

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(TPH), polycyclic aromatic hydrocarbons (PAHs) and volatile organic compounds (VOCs). Return water samples were collected daily upon the startup of 24-hour dredging operations. Return water samples were collected from January 9 through January 13, 2012 whereupon 24-hour dredging operations were suspended. Return water samples were collected from a sampling port immediately downstream of the of the return water pumps that moved collected decant water from the GeoTube® dewatering area in the MHA back to Shell Pond.

Table 1, enclosed, from the January 2012 Monthly Summary Report to RWQCB contains the return water sampling data.

If you have any questions on the attached data, please contact me at 925-360-2313.

Page: 3/3 Table 1 January 19, 2012 Air Sampling: TO-15 Detected Compounds Data Report, Preliminary Air Sampling and Analysis Shell Pond, Bay Point, California Sample ID: SP-A-UP-011912 Sample ID: SP-A-DOWN-011912 Sample ID: SP-A-FENCE-011912 Highest Odor Threshold Lowest Odor Threshold

ATSDR Minimal Intermediate Inhalation Risk Lower of CHHSL Ambient Concentration MRL Concentration MRL Concentration MRL Levels and RSL Cal-OSHA PEL Data* Concentration Concentration Analyte µg/m3 µg/m! µg/m3 µg/m! µg/m3 µg/m3 (µg/m!) µg/m! µg/m! (µg/m!) Source (µg/m!) Source (µg/m!) Source Ethanol 1.40E+01 6.20E+00 1.60E+01 6.10E+00 1.60E+01 6.60E+00 NA NA 1.90E+06 NA NA 8.29E+06 Moncrieff 1951 2.57E+02 3M Acetone ND 7.90E+00 ND 7.70E+00 1.80E+01 8.30E+00 3.09E+04 3.20E+04 1.20E+06 NA NA 1.50E+06 Dravnieks 1974 1.09E+04 3M

Notes: µg/m3 = micrograms per cubic meter ASTDR = Agency for Toxic Substances and Disease Registry Cal-OSHA PEL = California Occupational Safety and Health Administration Permissible Exposure Level CCV = Continuous Calibration Verification CHHSL = California Human Health Screening Level LCS = Laboratory Control Sample MRL = Method Reporting Limit NA = Not Available/Not Applicable ND = Not Detected RSL = USEPA Residential Screening Level, Indoor Residential Air NJ = the identification is based on presumptive evidence; estimated value UJ = Non-detected compound associated with low bias in the CCV and/or LCS *Ambient Data presented is the greater of the CA Resources Board Monitoring and the West Oakland Monitoring Study (WOMS) results

Shell Pond Bay Point-Jan_2012 Ambient Air Data.xlsx/T 1_ATL TO-15 Hits Only 2/10/2012 ARCADIS Page 1 of 1 Table 2 January 19, 2012 Air Sampling: TO-17 Detected Compounds Data Report, Preliminary Air Sampling and Analysis Shell Pond, Bay Point, California

Sample ID: SP-A-UP-011912 Sample ID: SP-A-DOWN-011912 Sample ID: SP-A-FENCE-011912 Sample ID: TB-011912 Highest Odor Threshold Lowest Odor Threshold ATSDR Minimal Intermediate Inhalation Risk Lower of CHHSL Ambient Concentration MRL Concentration MRL Concentration MRL Concentration MRL Levels and RSL Cal-OSHA PEL Data* Concentration Concentration Analyte µg/m! µg/m! µg/m! µg/m! µg/m3 µg/m3 µg/m3 µg/m! (µg/m!) µg/m! µg/m! (µg/m!) Source (µg/m!) Source (µg/m!) Source Isopentane 3.00E+01 2.60E+00 3.60E+02 2.60E+00 3.20E+02 2.90E+00 ND 2.60E+00 NA NA NA NA NA NA NA NA NA Freon 11 2.00E+01 4.90E+00 2.20E+01 4.80E+00 2.50E+01 5.40E+00 ND 4.80E+00 NA 7.30E+02 5.60E+06 NA NA 4.27E+04 3M 2.81E+04 Journal of Applied Technology Freon 113 8.50E+00 6.80E+00 1.00E+01 6.60E+00 1.30E+01 7.40E+00 ND 6.60E+00 NA NA NA NA NA 3.73E+06 3M 3.45E+05 Journal of Applied Technology Hexane 7.70E+00 3.10E+00 8.60E+00 3.00E+00 1.30E+01 3.40E+00 ND 3.00E+00 NA 7.30E+02 1.80E+05 NA NA 8.75E+05 Patty 1929 7.73E+04 3M Benzene 1.50E+01 2.80E+00 1.50E+01 2.80E+00 2.30E+01 3.10E+00 ND 2.80E+00 1.92E+01 3.10E-01 NA 1.82E+00 CA Resources Board 3.80E+05 Dravnieks 1974 8.80E+03 Schley 1934 Carbon Tetrachloride 9.30E+00 5.50E+00 1.10E+01 5.40E+00 6.60E+00 6.00E+00 ND 5.40E+00 1.89E+02 4.10E-01 1.26E+04 5.16E-01 CA Resources Board 3.80E+06 Dravnieks 1974 1.32E+05 Leonardus 1969 Cyclohexane 3.00E+00 3.00E+00 3.20E+00 2.90E+00 3.80E+00 3.30E+00 ND 2.90E+00 NA 6.30E+03 1.05E+06 NA NA 2.70E+06 Dravnieks 1974 3.56E+04 Stone 1972 2,2,4-Trimethylpentane 5.50E+00 4.10E+00 6.10E+00 4.00E+00 8.60E+00 4.50E+00 ND 4.00E+00 NA NA NA NA NA NA NA NA NA Heptane 6.20E+00 3.60E+00 7.00E+00 3.50E+00 9.80E+00 3.90E+00 ND 3.50E+00 NA NA 1.60E+06 NA NA 9.43E+05 Odor Thresholds 4.01E+04 3M Methylcyclohexane ND 3.50E+00 4.60E+00 3.40E+00 5.00E+00 3.80E+00 ND 3.40E+00 NA NA NA NA NA 2.53E+06 Journal of Applied Technology 2.01E+06 3M Toluene 2.30E+01 3.30E+00 4.00E+01 3.30E+00 5.30E+01 3.60E+00 ND 3.30E+00 NA 5.20E+03 1.88E+05 4.30E+00 CA Resources Board 2.60E+05 May 1966 8.00E+01 Nader 1958 Ethyl Benzene 4.90E+00 3.80E+00 1.50E+01 3.70E+00 1.60E+01 4.10E+00 ND 3.70E+00 8.68E+03 9.70E+01 4.35E+05 1.30E+00 CA Resources Board 9.98E+03 3M 4.00E+02 Koster 1971 m,p-Xylene 1.50E+01 3.80E+00 1.80E+01 3.70E+00 2.60E+01 4.10E+00 ND 3.70E+00 2.61E+03 1.00E+02 4.35E+05 2.74E+00 WOMS 8.60E+04 Koster 1971 3.50E+02 Stuiver 1958 o-Xylene 5.80E+00 3.80E+00 7.20E+00 3.70E+00 1.10E+01 4.10E+00 ND 3.70E+00 2.61E+03 1.00E+02 4.35E+05 2.74E+00 WOMS 2.36E+04 Punter 1980 1.30E+03 3M Styrene ND 3.70E+00 3.20E+01 3.60E+00 2.50E+01 4.00E+00 ND 3.60E+00 NA 1.00E+03 2.15E+05 2.13E-01 CA Resources Board 1.47E+04 3M 7.30E+01 Stalker 1963 Naphthalene 3.10E+00 8.80E-01 2.40E+00 8.60E-01 3.50E+00 9.60E-01 ND 8.60E-01 NA 7.20E-02 5.00E+04 NA NA 4.40E+02 Journal of Applied Technology 5.00E+01 Backman 1917 2-Methylnaphthalene 1.20E+00 8.80E-01 1.40E+00 8.60E-01 1.90E+00 9.60E-01 ND 8.60E-01 NA NA NA NA NA NA NA NA NA 1-Methylnaphthalene ND 8.80E-01 3.80E+00 8.60E-01 1.20E+00 9.60E-01 ND 8.60E-01 NA NA NA NA NA NA NA NA NA N-butyl-Benzene-sulfonamide 7.2 NJ NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA diphenyl Disulfide 25 NJ NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 2,6,10,15-tetramethyl-Heptadecane 4.6 NJ NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Hexadecanoic acid 4.7 NJ NA 86 NJ NA 12 NJ NA 20 NJ NA NA NA NA NA NA NA NA NA NA 2,6,10,2,6,10,14,18,22-Tetracosahexaene 23 NJ NA NA NA 460 NJ NA 6.5 NJ NA NA NA NA NA NA NA NA NA NA Sulfur Dioxide NA NA 140 NJ NA NA NA NA NA NA NA NA 2.62E+00 WOMS 1.00E+04 Leodnardus 1969 1.20E+03 Leonardus 1969 Tetradecanoic Acid NA NA 25 NJ NA NA NA 5.5 NJ NA NA NA NA NA NA NA NA NA NA (Z)-9-Octadecenoic acid NA NA 31 NJ NA NA NA NA NA NA NA NA NA NA NA NA NA NA (Z)-9-Octadecenamide NA NA 18 NJ NA NA NA NA NA NA NA NA NA NA NA NA NA NA

Shell Pond Bay Point-Jan_2012 Ambient Air Data.xlsx/T 2_ATL TO-17 Hits Only 2/10/2012 ARCADIS Page 1 of 1 Table 3 January 19, 2012 Air Sampling: TO-15 Complete Analytical Results Data Report, Preliminary Air Sampling and Analysis Shell Pond, Bay Point, California

Sample ID: SP-A-UP-011912 Sample ID: SP-A-DOWN-011912 Sample ID: SP-A-FENCE-011912 Highest Odor Threshold Lowest Odor Threshold ATSDR Minimal Intermediate Lower Inhalation Risk of CHHSL Ambient Concentration MRL Concentration MRL Concentration MRL Levels and RSL Cal-OSHA PEL Data* Concentration Concentration 3 3 3 3 Analyte µg/m µg/m! µg/m µg/m! µg/m µg/m (µg/m!) µg/m! µg/m! (µg/m!) Source (µg/m!) Source (µg/m!) Source Freon 12 ND 4.1 ND 4 ND 4.3 NA 1.00E+02 4.95E+06 NA NA NA NA NA NA Freon 114 ND 5.8 ND 5.7 ND 6.1 4.13E+02 NA 7.00E+06 NA NA NA NA NA NA Chloromethane ND 6.8 ND 6.7 ND 7.2 NA 9.40E+01 1.05E+05 NA NA 2.11E+05 3M 2.10E+04 Leonardus 1969 Vinyl Chloride ND 2.1 ND 2.1 ND 2.2 7.67E+01 1.60E-01 NA NA NA 7.67E+06 Journal of Applied Technology 6.48E+02 3M 1,3-Butadiene ND 1.8 ND 1.8 ND 1.9 NA 8.10E-02 2.20E+00 0.3429018 CA Resources Board 3.54E+03 Journal of Applied Technology 9.96E+02 Hellman 1974 Bromomethane ND 3.2 ND 3.2 ND 3.4 1.94E+02 5.20E+00 3.88E+03 NA NA NA NA NA NA Chloroethane ND 8.8 ND 8.6 ND 9.2 NA 5.28E+00 2.64E+05 NA NA 1.07E+04 3M 1.00E+04 Backman 1917 Freon 11 ND 4.7 ND 4.6 ND 4.9 NA 7.30E+02 5.60E+06 NA NA 4.27E+04 3M 2.81E+04 Journal of Applied Technology Ethanol 1.40E+01 6.2 1.60E+01 6.1 1.60E+01 6.6 NA NA 1.90E+06 NA NA 8.29E+06 Moncrieff 1951 2.57E+02 3M Freon 113 ND 6.4 ND 6.2 ND 6.7 NA NA NA NA NA 3.73E+06 3M 3.45E+05 Journal of Applied Technology 1,1-Dichloroethene ND 3.3 ND 3.2 ND 3.5 7.93E+01 2.10E+02 7.90E+05 NA NA 5.50E+06 Irish 1962 1.41E+05 3M Acetone ND 7.9 ND 7.7 1.80E+01 8.3 3.09E+04 3.20E+04 1.20E+06 NA NA 1.50E+06 Dravnieks 1974 1.09E+04 3M 2-Propanol ND 8.2 ND 8 ND 8.6 NA 7.30E+03 NA NA NA 5.40E+06 Koster 1971 1.08E+03 3M Carbon Disulfide ND 10 ND 10 ND 11 NA 7.30E+02 1.20E+04 NA NA 6.54E+02 Odor Control 1.21E+00 Journal of Applied Technology 3-Chloropropene ND 10 ND 10 ND 11 NA 4.10E-01 3.00E+03 NA NA 3.76E+03 Journal of Applied Technology 1.47E+03 Odor Control Methylene Chloride ND 2.9 ND 2.8 ND 3 1.04E+03 5.20E+00 8.70E+04 1.74 CA Resources Board 8.69E+05 Journal of Applied Technology 3.16E+03 3M Methyl tert-butyl ether ND 3 ND 2.9 ND 3.2 NA 9.40E+00 1.44E+05 3.82 CA Resources Board NA NA 1.91E+02 3M trans-1,2-Dichloroethene ND 3.3 ND 3.2 ND 3.5 7.93E+02 6.30E+01 7.90E+05 NA NA 1.10E+06 Lehmann 1936 6.74E+04 Journal of Applied Technology Hexane ND 2.9 ND 2.9 ND 3.1 NA 7.30E+02 1.80E+05 NA NA 8.75E+05 Patty 1929 7.73E+04 3M 1,1-Dichloroethane ND 3.4 ND 3.3 ND 3.5 NA 1.50E+00 4.00E+05 NA NA NA NA 1.04E+06 3M 2-Butanone (Methyl Ethyl Ketone) ND 9.8 ND 9.6 ND 10 NA 5.20E+03 5.90E+05 0.3243763 CA Resources Board 2.50E+05 Dravnieks 1974 7.97E+02 3M cis-1,2-Dichloroethene ND 3.3 ND 3.2 ND 3.5 NA 15900! 7.90E+05 NA NA NA NA 7.58E+04 3M Tetrahydrofuran ND 2.4 ND 2.4 ND 2.6 NA NA 5.90E+05 NA NA 9.14E+04 Odor Thresholds 5.90E+03 Journal of Applied Technology Chloroform ND 4 ND 4 ND 4.3 2.44E+02 1.10E-01 9.78E+03 0.1416078 CA Resources Board 3.00E+06 Tempelaar 1913 3.10E+04 Passy 1893a 1,1,1-Trichloroethane ND 4.5 ND 4.4 ND 4.8 3.82E+03 5.20E+03 1.90E+06 NA NA 2.13E+06 Odor Thresholds 1.22E+05 3M Cyclohexane ND 2.8 ND 2.8 ND 3 NA 6.30E+03 1.05E+06 NA NA 2.70E+06 Dravnieks 1974 3.56E+04 Stone 1972 Carbon Tetrachloride ND 5.2 ND 5.1 ND 5.5 1.89E+02 4.10E-01 1.26E+04 0.515946 CA Resources Board 3.80E+06 Dravnieks 1974 1.32E+05 Leonardus 1969 2,2,4-Trimethylpentane ND 3.9 ND 3.8 ND 4.1 NA NA NA NA NA NA NA NA NA Benzene ND 2.6 ND 2.6 ND 2.8 1.92E+01 3.10E-01 NA 1.82 CA Resources Board 3.80E+05 Dravnieks 1974 8.80E+03 Schley 1934 1,2-Dichloroethane ND 3.4 ND 3.3 ND 3.5 NA 9.40E-02 4.00E+03 NA NA 1.50E+06 Jones 1955c 2.50E+04 Hellman 1974 Heptane ND 3.4 ND 3.3 ND 3.6 NA NA 1.60E+06 NA NA 9.43E+05 Odor Thresholds 4.01E+04 3M Trichloroethene ND 4.5 ND 4.4 ND 4.7 5.37E+02 NA 1.60E+06 0.3063313 CA Resources Board 5.8 E+5 May 1966 7.30E+03 3M 1,2-Dichloropropane ND 3.8 ND 3.8 ND 4 3.24E+01 2.40E-01 3.50E+05 NA NA 3.93E+03 3M 1.20E+03 Hellman 1974 1,4-Dioxane ND 12 ND 12 ND 13 3.60E+03 3.20E-01 1.00E+03 NA NA 9.40E+06 Koster 1971 2.90E+03 Hellman 1974 Bromodichloromethane ND 5.6 ND 5.5 ND 5.9 NA 6.60E-02 NA NA NA NA NA NA NA cis-1,3-Dichloropropene ND 3.8 ND 3.7 ND 4 3.63E+01 6.10E-01 5.00E+03 NA NA NA NA NA NA 4-Methyl-2-pentanone ND 3.4 ND 3.3 ND 3.6 NA 4.10E+03 NA NA NA 3.20E+04 May 1966 4.00E+01 Hellmann 1974 Toluene ND 3.1 ND 3.1 ND 3.3 NA 5.20E+03 1.88E+05 4.3 CA Resources Board 2.60E+05 May 1966 8.00E+01 Nader 1958 trans-1,3-Dichloropropene ND 3.8 ND 3.7 ND 4 3.63E+01 6.10E-01 5.00E+03 NA NA NA NA NA NA 1,1,2-Trichloroethane ND 4.5 ND 4.4 ND 4.8 NA 1.50E-01 4.50E+04 NA NA NA NA NA NA Tetrachloroethene ND 5.6 ND 5.5 ND 5.9 NA 4.10E-01 1.70E+05 NA NA 3.20E+05 May 1966 3.17E+04 Leonardus 1969 2-Hexanone ND 14 ND 13 ND 14 NA 3.10E+01 4.00E+03 NA NA 6.81E+02 3M 2.80E+02 Backman 1917 Dibromochloromethane ND 7.1 ND 6.9 ND 7.4 NA 9.00E-02 NA NA NA NA NA NA NA 1,2-Dibromoethane (EDB) ND 6.4 ND 6.3 ND 6.7 NA 4.10E-03 1.00E+03 NA NA NA NA 7.57E+04 3M Chlorobenzene ND 3.8 ND 3.8 ND 4 NA 5.20E+01 4.60E+04 0.230184 CA Resources Board 1.84E+06 Journal of Applied Technology 9.10E+02 Leonardus 1969 Ethyl Benzene ND 3.6 ND 3.5 ND 3.8 8.68E+03 9.70E+01 4.35E+05 1.3 CA Resources Board 9.98E+03 3M 4.00E+02 Koster 1971 m,p-Xylene ND 3.6 ND 3.5 ND 3.8 2.61E+03 1.00E+02 4.35E+05 2.74 WOMS 8.60E+04 Koster 1971 3.50E+02 Stuiver 1958 o-Xylene ND 3.6 ND 3.5 ND 3.8 2.61E+03 1.00E+02 4.35E+05 2.74 WOMS 2.36E+04 Punter 1980 1.30E+03 3M Styrene ND 3.5 ND 3.5 ND 3.7 NA 1.00E+03 2.15E+05 0.2129652 CA Resources Board 1.47E+04 3M 7.30E+01 Stalker 1963 Bromoform ND 8.6 ND 8.4 ND 9 NA 2.20E+00 5.00E+03 NA NA 5.00E+03 Passy 1893a 2.00E+03 Passy 1893a Cumene ND 4.1 ND 4 ND 4.3 NA 4.20E+02 2.45E+05 NA NA 4.33E+02 Journal of Applied Technology 3.93E+01 Hellman 1974 1,1,2,2-Tetrachloroethane ND 5.7 ND 5.6 ND 6 NA 4.20E-02 7.00E+03 NA NA 5.01E+04 Odor Thresholds 1.44E+03 3M Propylbenzene ND 4.1 ND 4 ND 4.3 NA 1.00E+03 NA NA NA NA NA NA NA 4-Ethyltoluene ND 4.1 ND 4 ND 4.3 NA NA NA NA NA NA NA NA NA 1,3,5-Trimethylbenzene ND 4.1 ND 4 ND 4.3 NA NA 1.25E+05 NA NA 2.70E+03 Journal of Applied Technology 2.00E+02 Deadman 1959 1,2,4-Trimethylbenzene ND 4.1 ND 4 ND 4.3 NA 7.30E+00 1.25E+05 NA NA 1.18E+04 Odor Thresholds 7.00E+02 Deadman 1959 1,3-Dichlorobenzene ND 5 ND 4.9 ND 5.3 NA NA NA 0.6012679 CA Resources Board NA NA NA NA 1,4-Dichlorobenzene ND 5 ND 4.9 ND 5.3 1.20E+03 2.20E-01 6.00E+04 0.8417751 CA Resources Board 9.00E+03 Hollingsworth 1956 2.88E+02 3M alpha-Chlorotoluene ND 4.3 ND 4.2 ND 4.5 NA 5.00E-02 5.00E+03 NA NA NA NA NA NA 1,2-Dichlorobenzene ND 5 ND 4.9 ND 5.3 NA 2.10E+02 1.50E+05 0.4208589 CA Resources Board 4.21E+03 Odor Thresholds 1.20E+02 Backman 1917 1,2,4-Trichlorobenzene ND 25 ND 24 ND 26 NA 2.10E+00 4.00E+04 NA NA 2.16E+04 3M 1.04E+04 Journal of Applied Technology Hexachlorobutadiene ND 35 ND 35 ND 37 NA 1.10E-01 NA NA NA NA NA NA NA Acrolein ND 7.6 ND 7.5 ND 8 9.17E-02 2.10E-02 2.50E+02 0.0641996 WOMS 4.13E+03 Odor Thresholds 5.00E+01 Teranishi 1974 Naphthalene ND 17 ND 17 ND 18 NA 7.20E-02 5.00E+04 NA NA 4.40E+02 Journal of Applied Technology 5.00E+01 Backman 1917

Shell Pond Bay Point-Jan_2012 Ambient Air Data.xlsx/T 3_ATL TO-15 Results 2/10/2012 ARCADIS Page 1 of 2 Table 3 January 25-26, 2012 Air Sampling: TO-15 Complete Analytical Results Data Report, Preliminary Air Sampling and Analysis Shell Pond, Bay Point, California

Sample ID: SP-A-UP-011912 Sample ID: SP-A-DOWN-011912 Sample ID: SP-A-FENCE-011912 Highest Odor Threshold Lowest Odor Threshold ATSDR Minimal Screening Value Intermediate (lower Inhalation Risk of CHHSL Ambient Concentration MRL Concentration MRL Concentration MRL Levels and RSL) Cal-OSHA PEL Data* Concentration Concentration 3 3 3 3 Analyte µg/m µg/m! µg/m µg/m! µg/m µg/m (µg/m!) µg/m! µg/m! (µg/m!) Source (µg/m!) Source (µg/m!) Source CHHSL = California Human Health Screening Level LCS = Laboratory Control Sample MRL = Method Reporting Limit NA = Not Available/Not Applicable ND = Not Detected RSL = USEPA Residential Screening Level, Indoor Residential Air NJ = the identification is based on presumptive evidence; estimated value UJ = Non-detected compound associated with low bias in the CCV and/or LCS *Ambient Data presented is the greater of the CA Resources Board Monitoring and the West Oakland Monitoring Study (WOMS) results

Shell Pond Bay Point-Jan_2012 Ambient Air Data.xlsx/T 3_ATL TO-15 Results 2/10/2012 ARCADIS Page 2 of 2 Table 4 January 19, 2012 Air Sampling: TO-17 Complete Analytical Results Data Report, Preliminary Air Sampling and Analysis Shell Pond, Bay Point, California

Sample ID: SP-A-UP-011912 Sample ID: SP-A-DOWN-011912 Sample ID: SP-A-FENCE-011912 Sample ID: TB-011912 Highest Odor Threshold Lowest Odor Threshold ATSDR Minimal Screening Intermediate Value (lower Inhalation Risk of CHHSL Cal-OSHA Ambient Concentration MRL Concentration MRL Concentration MRL Concentration MRL Levels and RSL) PEL Data* Concentration Concentration 3 3 3 Analyte µg/m! µg/m! µg/m! µg/m! µg/m µg/m µg/m µg/m! (µg/m!) µg/m! µg/m! (µg/m!) Source (µg/m!) Source (µg/m!) Source Freon 114 ND 6.1 ND 6 ND 6.7 ND 6 NA NA 7.00E+06 NA NA NA NA NA NA Vinyl Chloride ND 2.3 ND 2.2 ND 2.5 ND 2.2 7.67E+01 1.60E-01 NA NA NA 7.67E+06 Journal of Applied Technology 6.48E+02 3M 1,3-Butadiene ND 1.9 ND 1.9 ND 2.1 ND 1.9 NA 8.10E-02 2.20E+00 3.43E-01 CA Resources Board 3.54E+03 Journal of Applied Technology 9.96E+02 Hellman 1974 Isopentane 3.00E+01 2.6 3.60E+02 2.6 3.20E+02 2.9 ND 2.6 NA NA NA NA NA NA NA NA NA Freon 11 2.00E+01 4.9 2.20E+01 4.8 2.50E+01 5.4 ND 4.8 NA 7.30E+02 5.60E+06 NA NA 4.27E+04 3M 2.81E+04 Journal of Applied Technology 1,1-Dichloroethene ND 3.5 ND 3.4 ND 3.8 ND 3.4 7.93E+01 2.10E+02 7.90E+05 NA NA 5.50E+06 Irish 1962 1.41E+05 3M Methylene Chloride UJ 18 UJ 18 UJ 20 ND 18 1.04E+03 5.20E+00 8.70E+04 1.74E+00 CA Resources Board 8.69E+05 Journal of Applied Technology 3.16E+03 3M Freon 113 8.50E+00 6.8 1.00E+01 6.6 1.30E+01 7.4 ND 6.6 NA NA NA NA NA 3.73E+06 3M 3.45E+05 Journal of Applied Technology trans-1,2-Dichloroethene ND 3.5 ND 3.4 ND 3.8 ND 3.4 7.93E+02 6.30E+01 7.90E+05 NA NA 1.10E+06 Lehmann 1936 6.74E+04 Journal of Applied Technology 1,1-Dichloroethane ND 3.5 ND 3.4 ND 3.8 ND 3.4 NA 1.50E+00 4.00E+05 NA NA NA NA 1.04E+06 3M cis-1,2-Dichloroethene ND 3.5 ND 3.4 ND 3.8 ND 3.4 NA 15900! 7.90E+05 NA NA NA NA 7.58E+04 3M Hexane 7.70E+00 3.1 8.60E+00 3 1.30E+01 3.4 ND 3 NA 7.30E+02 1.80E+05 NA NA 8.75E+05 Patty 1929 7.73E+04 3M Chloroform ND 4.3 ND 4.2 ND 4.7 ND 4.2 2.44E+02 1.10E-01 9.78E+03 1.42E-01 CA Resources Board 3.00E+06 Tempelaar 1913 3.10E+04 Passy 1893a 1,2-Dichloroethane ND 3.5 ND 3.4 ND 3.8 ND 3.4 NA 9.40E-02 4.00E+03 NA NA 1.50E+06 Jones 1955c 2.50E+04 Hellman 1974 1,1,1-Trichloroethane ND 4.7 ND 4.6 ND 5.2 ND 4.6 3.82E+03 5.20E+03 1.90E+06 NA NA 2.13E+06 Odor Thresholds 1.22E+05 3M Benzene 1.50E+01 2.8 1.50E+01 2.8 2.30E+01 3.1 ND 2.8 1.92E+01 3.10E-01 NA 1.82E+00 CA Resources Board 3.80E+05 Dravnieks 1974 8.80E+03 Schley 1934 Carbon Tetrachloride 9.30E+00 5.5 1.10E+01 5.4 6.60E+00 6 ND 5.4 1.89E+02 4.10E-01 1.26E+04 5.16E-01 CA Resources Board 3.80E+06 Dravnieks 1974 1.32E+05 Leonardus 1969 Cyclohexane 3.00E+00 3 3.20E+00 2.9 3.80E+00 3.3 ND 2.9 NA 6.30E+03 1.05E+06 NA NA 2.70E+06 Dravnieks 1974 3.56E+04 Stone 1972 1,2-Dichloropropane ND 4 ND 4 ND 4.4 ND 4 3.24E+01 2.40E-01 3.50E+05 NA NA 3.93E+03 3M 1.20E+03 Hellman 1974 Trichloroethene ND 4.7 ND 4.6 ND 5.2 ND 4.6 5.37E+02 NA 1.60E+06 3.06E-01 CA Resources Board 5.8 E+5 May 1966 7.30E+03 3M 1,4-Dioxane ND 9.6 ND 9.5 ND 10 ND 9.5 3.60E+03 3.20E-01 1.00E+03 NA NA 9.40E+06 Koster 1971 2.90E+03 Hellman 1974 2,2,4-Trimethylpentane 5.50E+00 4.1 6.10E+00 4 8.60E+00 4.5 ND 4 NA NA NA NA NA NA NA NA NA Heptane 6.20E+00 3.6 7.00E+00 3.5 9.80E+00 3.9 ND 3.5 NA NA 1.60E+06 NA NA 9.43E+05 Odor Thresholds 4.01E+04 3M Methylcyclohexane ND 3.5 4.60E+00 3.4 5.00E+00 3.8 ND 3.4 NA NA NA NA NA 2.53E+06 Journal of Applied Technology 2.01E+06 3M 1,1,2-Trichloroethane ND 4.7 ND 4.6 ND 5.2 ND 4.6 NA 1.50E-01 4.50E+04 NA NA NA NA NA NA 4-Methyl-2-pentanone ND 3.6 ND 3.5 ND 3.9 ND 3.5 NA 4.10E+03 NA NA NA 3.20E+04 May 1966 4.00E+01 Hellmann 1974 Toluene 2.30E+01 3.3 4.00E+01 3.3 5.30E+01 3.6 ND 3.3 NA 5.20E+03 1.88E+05 4.30E+00 CA Resources Board 2.60E+05 May 1966 8.00E+01 Nader 1958 2-Hexanone ND 3.6 ND 3.5 ND 3.9 ND 3.5 NA 3.10E+01 4.00E+03 NA NA 6.81E+02 3M 2.80E+02 Backman 1917 Tetrachloroethene ND 6 ND 5.9 ND 6.5 ND 5.9 NA 4.10E-01 1.70E+05 NA NA 3.20E+05 May 1966 3.17E+04 Leonardus 1969 Chlorobenzene ND 4 ND 4 ND 4.4 ND 4 NA 5.20E+01 4.60E+04 2.30E-01 CA Resources Board 1.84E+06 Journal of Applied Technology 9.10E+02 Leonardus 1969 Ethyl Benzene 4.90E+00 3.8 1.50E+01 3.7 1.60E+01 4.1 ND 3.7 8.68E+03 9.70E+01 4.35E+05 1.30E+00 CA Resources Board 9.98E+03 3M 4.00E+02 Koster 1971 m,p-Xylene 1.50E+01 3.8 1.80E+01 3.7 2.60E+01 4.1 ND 3.7 2.61E+03 1.00E+02 4.35E+05 2.74E+00 WOMS 8.60E+04 Koster 1971 3.50E+02 Stuiver 1958 o-Xylene 5.80E+00 3.8 7.20E+00 3.7 1.10E+01 4.1 ND 3.7 2.61E+03 1.00E+02 4.35E+05 2.74E+00 WOMS 2.36E+04 Punter 1980 1.30E+03 3M Styrene ND 3.7 3.20E+01 3.6 2.50E+01 4 ND 3.6 NA 1.00E+03 2.15E+05 2.13E-01 CA Resources Board 1.47E+04 3M 7.30E+01 Stalker 1963 1,1,2,2-Tetrachloroethane ND 6 ND 5.9 ND 6.6 ND 5.9 NA 4.20E-02 7.00E+03 NA NA 5.01E+04 Odor Thresholds 1.44E+03 3M Cumene ND 4.3 ND 4.2 ND 4.7 ND 4.2 NA 4.20E+02 2.45E+05 NA NA 4.33E+02 Journal of Applied Technology 3.93E+01 Hellman 1974 Propylbenzene ND 4.3 ND 4.2 ND 4.7 ND 4.2 NA 1.00E+03 NA NA NA NA NA NA NA 4-Ethyltoluene ND 4.3 ND 4.2 ND 4.7 ND 4.2 NA NA NA NA NA NA NA NA NA 1,3,5-Trimethylbenzene ND 4.3 ND 4.2 ND 4.7 ND 4.2 NA NA 1.25E+05 NA NA 2.70E+03 Journal of Applied Technology 2.00E+02 Deadman 1959 1,2,4-Trimethylbenzene ND 25 ND 25 ND 28 ND 25 NA 7.30E+00 1.25E+05 NA NA 1.18E+04 Odor Thresholds 7.00E+02 Deadman 1959 1,3-Dichlorobenzene ND 5.3 ND 5.2 ND 5.8 ND 5.2 NA NA NA 6.01E-01 CA Resources Board NA NA NA NA 1,4-Dichlorobenzene ND 10 ND 10 ND 12 ND 10 1.20E+03 2.20E-01 6.00E+04 8.42E-01 CA Resources Board 9.00E+03 Hollingsworth 1956 2.88E+02 3M 1,2-Dichlorobenzene ND 10 ND 10 ND 12 ND 10 NA 2.10E+02 1.50E+05 4.21E-01 CA Resources Board 4.21E+03 Odor Thresholds 1.20E+02 Backman 1917 1,2,4-Trichlorobenzene ND 13 ND 13 ND 14 ND 13 NA 2.10E+00 4.00E+04 NA NA 2.16E+04 3M 1.04E+04 Journal of Applied Technology Hexachlorobutadiene ND 19 ND 19 ND 21 ND 19 NA 1.10E-01 NA NA NA NA NA NA NA Naphthalene 3.10E+00 0.88 2.40E+00 0.86 3.50E+00 0.96 ND 0.86 NA 7.20E-02 5.00E+04 NA NA 4.40E+02 Journal of Applied Technology 5.00E+01 Backman 1917 2-Methylnaphthalene 1.20E+00 0.88 1.40E+00 0.86 1.90E+00 0.96 ND 0.86 NA NA NA NA NA NA NA NA NA 1-Methylnaphthalene ND 0.88 3.80E+00 0.86 1.20E+00 0.96 ND 0.86 NA NA NA NA NA NA NA NA NA Acenaphthylene ND 4.4 ND 4.3 ND 4.8 ND 4.3 NA NA NA NA NA NA NA NA NA Acenaphthene ND 4.4 ND 4.3 ND 4.8 ND 4.3 NA NA NA NA NA NA NA 5.05E+02 Lillard 1975 Fluorene ND 4.4 ND 4.3 ND 4.8 ND 4.3 NA NA NA NA NA NA NA NA NA Phenanthrene ND 4.4 ND 4.3 ND 4.8 ND 4.3 NA NA NA NA NA 6.00E+01 Backman 1917 5.50E+01 Backman 1917 Anthracene ND 4.4 ND 4.3 ND 4.8 ND 4.3 NA NA NA NA NA NA NA NA NA Fluoranthene ND 4.4 ND 4.3 ND 4.8 ND 4.3 NA NA NA NA NA NA NA NA NA Pyrene ND 4.4 ND 4.3 ND 4.8 ND 4.3 NA NA NA NA NA NA NA NA NA 1,2-Dichloroethane-d4 85% Recovery NA 91% Recovery NA 74% Recovery NA 92% Recovery NA NA NA NA NA NA NA NA NA NA Toluene-d8 97% Recovery NA 102% Recovery NA 92% Recovery NA 94% Recovery NA NA NA NA NA NA NA NA NA NA Naphthalene-d8 102% Recovery NA 101% Recovery NA 93% Recovery NA 92% Recovery NA NA NA NA NA NA NA NA NA NA N-butyl-Benzene-sulfonamide 7.2 NJ NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA diphenyl Disulfide 25 NJ NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 2,6,10,15-tetramethyl-Heptadecane 4.6 NJ NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Hexadecanoic acid 4.7 NJ NA 86 NJ NA 12 NJ NA 20 NJ NA NA NA NA NA NA NA NA NA NA 2,6,10,2,6,10,14,18,22-Tetracosahexaene 23 NJ NA NA NA 460 NJ NA 6.5 NJ NA NA NA NA NA NA NA NA NA NA Sulfur Dioxide NA NA 140 NJ NA NA NA NA NA NA NA NA 2.62E+00 WOMS 1.00E+04 Leodnardus 1969 1.20E+03 Leonardus 1969 Cyclopentene NA NA 22 NJ NA 37 NJ NA NA NA NA NA NA NA NA NA NA NA NA 1-pentene NA NA 430 NJ NA 310 NJ NA NA NA NA NA NA NA NA NA NA NA NA Tetradecanoic Acid NA NA 25 NJ NA NA NA 5.5 NJ NA NA NA NA NA NA NA NA NA NA Pentadecanoic Acid NA NA 14 NJ NA NA NA NA NA NA NA NA NA NA NA NA NA NA Oxacycloheptadecan-2-one NA NA 34 NJ NA NA NA NA NA NA NA NA NA NA NA NA NA NA (Z)-9-Octadecenoic acid NA NA 31 NJ NA NA NA NA NA NA NA NA NA NA NA NA NA NA (Z)-9-Octadecenamide NA NA 18 NJ NA NA NA NA NA NA NA NA NA NA NA NA NA NA

Shell Pond Bay Point-Jan_2012 Ambient Air Data.xlsx/T 4_ATL TO-17 Results 2/10/2012 ARCADIS Page 1 of 2 Table 4 January 25-26, 2012 Air Sampling: TO-17 Complete Analytical Results Data Report, Preliminary Air Sampling and Analysis Shell Pond, Bay Point, California

Shell Pond Bay Point-Jan_2012 Ambient Air Data.xlsx/T 4_ATL TO-17 Results 2/10/2012 ARCADIS Page 2 of 2 Table 5 January 19, 2012 Air Sampling: ASTM D-5504 Complete Analytical Results Data Report, Preliminary Air Sampling and Analysis Shell Pond, Bay Point, California

Sample ID: SP-A-UP-011912 Sample ID: SP-A-DOWN-011912 Sample ID: SP-A-FENCE-012012 Highest Odor Threshold Lowest Odor Threshold ATSDR Minimal Intermediate Screening Value Inhalation Risk (lower of CHHSL Ambient Concentration MRL Concentration MRL Concentration MRL Levels and RSL) Cal-OSHA Data* Concentration Concentration Analyte µg/m! µg/m! µg/m! µg/m! µg/m! µg/m! (µg/m!) µg/m! PEL (µg/m!) (µg/m!) Source (µg/m!) Source (µg/m!) Source Hydrogen Sulfide ND 5.6 ND 5.6 ND 5.6 2.79E+01 2.10E+00 1.40E+04 NA NA 1.10E+03 Dalla et al. 1939 7.00E-02 Columbia Analytical Services Carbonyl Sulfide ND 9.8 ND 9.8 ND 9.8 NA NA NA NA NA NA NA 2.50E+02 Polgar et al. 1975 Methyl Mercaptan ND 7.9 ND 7.9 ND 7.9 NA NA 1.00E+03 NA NA 4.20E+01 Columbia Analytical Services 1.50E-04 Columbia Analytical Services Ethyl Mercaptan ND 10 ND 10 ND 10 NA NA 1.00E+03 NA NA 3.60E+01 Columbia Analytical Services 1.30E-02 Columbia Analytical Services Dimethyl Sulfide ND 10 ND 10 ND 10 NA NA NA NA NA 3.00E+01 Lindvall 1970 1.00E-01 Columbia Analytical Services Carbon Disulfide ND 16 ND 16 ND 16 NA 7.30E+02 1.20E+04 NA NA 7.40E+04 Columbia Analytical Services 7.70E+00 Columbia Analytical Services Isopropyl Mercaptan ND 12 ND 12 ND 12 NA NA NA NA NA 2.00E-02 Stuiver 1958 2.50E-03 Stuiver 1958 tert-Butyl Mercaptan ND 15 ND 15 ND 15 NA NA NA NA NA 5.00E-01 Columbia Analytical Services 9.00E-02 Stuiver 1958 n-Propyl Mercaptan ND 12 ND 12 ND 12 NA NA NA NA NA 5.00E-01 Columbia Analytical Services 8.00E-04 Columbia Analytical Services Ethyl Methyl Sulfide ND 12 ND 12 ND 12 NA NA NA NA NA 4.36E+01 Odor Control 4.36E+01 Odor Control Thiophene ND 14 ND 14 ND 14 NA NA NA NA NA 2.10E+04 Deadman 1959 3.10E+00 Nevers 1965 Isobutyl Mercaptan ND 15 ND 15 ND 15 NA NA NA NA NA 8.00E+03 Alisov 1919 6.00E-03 Stuiver 1958 Diethyl Sulfide ND 15 ND 15 ND 15 NA NA NA NA NA 2.21E+01 Odor Control 4.50E+00 Deadman 1959 n-Butyl Mercaptan ND 15 ND 15 ND 15 NA NA 1.50E+03 NA NA 1.10E+03 Columbia Analytical Services 2.00E-02 Columbia Analytical Services Dimethyl Disulfide ND 15 ND 15 ND 15 NA NA NA NA NA 1.60E+02 Columbia Analytical Services 2.60E-02 Columbia Analytical Services 3-Methylthiophene ND 16 ND 16 ND 16 NA NA NA NA NA NA NA NA NA Tetrahydrothiophene ND 14 ND 14 ND 14 NA NA NA NA NA NA NA 1.80E+00 Deadman 1959 2-Ethylthiophene ND 18 ND 18 ND 18 NA NA NA NA NA NA NA NA NA 2,5-Dimethylthiophene ND 18 ND 18 ND 18 NA NA NA NA NA NA NA NA NA Diethyl Disulfide ND 20 ND 20 ND 20 NA NA NA NA NA NA NA 3.00E-01 Zwaardemaker 1914

Shell Pond Bay Point-Jan_2012 Ambient Air Data.xlsx/T 5_ATL ASTM-D Results 2/10/2012 ARCADIS Page 1 of 1 Table 6 January 25-26, 2012 Air Sampling: TO-15 Detected Compounds Data Report, Preliminary Air Sampling and Analysis Shell Pond, Bay Point, California Sample ID: SP-A-BAG-012512 Sample ID: SP-A-FB-Bag-012612 Highest Odor Threshold Lowest Odor Threshold ATSDR Minimal Intermediate Screening Cal-OSHA Detected Detected Inhalation Risk Value (lower of Permissible Ambient Concentration MRL Concentration MRL Levels CHHSL and Exposure Limit Data* Concentration Concentration Analyte (µg/m!) (µg/m!) (µg/m!) (µg/m!) (µg/m!) RSL: µg/m!) (µg/m!) (µg/m!) Source (µg/m!) Source (µg/m!) Source Propene 4.90E+00 6.10E-01 1.70E+00 6.10E-01 NA 3.10E+03 NA NA NA 1.31E+05 Journal of Applied Technology 2.93E+04 3M Dichlorodifluoromethane 2.00E+00 6.10E-01 2.60E+00 6.10E-01 NA 1.00E+02 4.95E+06 NA NA NA NA NA NA Chloromethane 2.80E-01 2.40E-01 3.40E-01 2.40E-01 4.13E+02 9.40E+01 1.05E+05 NA NA 2.11E+05 3M 2.10E+04 Leonardus 1969 Ethanol 3.30E+00 6.10E+00 7.70E+01 6.10E+00 NA NA 1.90E+06 NA NA 8.29E+06 Moncrieff 1951 2.57E+02 3M Acetonitrile 4.70E+00 6.10E-01 2.90E+00 6.10E-01 NA 6.30E+01 7.00E+04 NA NA 1.95E+06 Dravnieks 1974 8.70E+04 Pozzani et al. 1959 Acrolein 8.60E-01 2.40E+00 2.20E+00 2.40E+00 9.17E-02 2.10E-02 2.50E+02 6.42E-02 WOMS 4.13E+03 Odor Thresholds 5.00E+01 Teranishi 1974 Acetone 1.20E+02 6.10E+00 1.00E+01 6.10E+00 3.09E+04 3.20E+04 1.20E+06 NA NA 1.50E+06 Dravnieks 1974 1.09E+04 3M Trichlorofluoromethane 1.80E-01 1.20E-01 4.80E-01 1.20E-01 NA 7.30E+02 5.60E+06 NA NA 4.27E+04 3M 2.81E+04 Journal of Applied Technology Isopropanol (2-Propanol) 2.40E+00 1.20E+00 1.50E+00 1.20E+00 NA 7.30E+03 NA NA NA 5.40E+06 Koster 1971 1.08E+03 3M Acrylonitrile 3.40E-01 6.10E-01 4.80E-01 6.10E-01 NA 3.60E-02 4.34E+03 NA NA 4.64E+04 Odor Control 3.40E+03 Stalker 1963 Methylene Chloride 4.50E+00 6.10E-01 6.40E+00 6.10E-01 1.04E+03 5.20E+00 8.70E+04 1.74E+00 CA Resources Board 8.69E+05 Journal of Applied Technology 3.16E+03 3M Carbon Disulfide 6.60E+00 6.10E+00 5.90E-01 6.10E+00 NA 7.30E+02 1.20E+04 NA NA 6.54E+02 Odor Control 1.21E+00 Journal of Applied Technology Vinyl Acetate 3.70E+00 6.10E+00 ND 6.10E+00 3.52E+01 2.10E+02 3.00E+04 NA NA 2.12E+03 3M 4.00E+01 Hellman 1974 2-Butanone (MEK) 3.20E+01 6.10E+00 6.60E-01 6.10E+00 NA 5.20E+03 5.90E+05 3.24E-01 CA Resources Board 2.50E+05 Dravnieks 1974 7.97E+02 3M Ethyl Acetate 6.70E-01 1.20E+00 ND 1.20E+00 NA NA 1.40E+06 NA NA 1.80E+05 May 1966 4.32E+00 Journal of Applied Technology n-Hexane 4.90E-01 6.10E-01 1.60E-01 6.10E-01 NA 7.30E+02 1.80E+05 NA NA 8.75E+05 Patty 1929 7.73E+04 3M Benzene 1.70E-01 1.20E-01 1.90E-01 1.20E-01 1.92E+01 3.10E-01 NA 1.82E+00 CA Resources Board 3.80E+05 Dravnieks 1974 8.80E+03 Schley 1934 n-Heptane 2.00E+00 6.10E-01 ND 6.10E-01 NA NA 1.60E+06 NA NA 9.43E+05 Odor Thresholds 4.01E+04 3M 4-Methyl-2-Pentanone 1.90E+00 6.10E-01 ND 6.10E-01 NA 4.10E+03 NA NA NA 3.20E+04 May 1966 4.00E+01 Hellmann 1974 Toluene 3.50E-01 6.10E-01 7.40E-01 6.10E-01 NA 5.20E+03 1.88E+05 4.30E+00 CA Resources Board 2.60E+05 May 1966 8.00E+01 Nader 1958 2-Hexanone ND 6.10E-01 4.70E-01 6.10E-01 NA 3.10E+01 4.00E+03 NA NA 6.81E+02 3M 2.80E+02 Backman 1917 n-Octane 4.90E+00 6.10E-01 7.10E-01 6.10E-01 NA NA 1.45E+06 NA NA 7.10E+05 May 1966 2.69E+04 3M Ethylbenzene 5.40E-01 6.10E-01 1.50E-01 6.10E-01 8.68E+03 9.70E+01 4.35E+05 1.30E+00 CA Resources Board 9.98E+03 3M 4.00E+02 Koster 1971 m,p-Xylene 1.00E+00 6.10E-01 5.90E-01 6.10E-01 2.61E+03 1.00E+02 4.35E+05 2.74E+00 WOMS 8.60E+04 Koster 1971 3.50E+02 Stuiver 1958 Styrene ND 6.10E-01 2.50E-01 6.10E-01 NA 1.00E+03 2.15E+05 2.13E-01 CA Resources Board 1.47E+04 3M 7.30E+01 Stalker 1963 o-Xylene 5.90E-01 6.10E-01 2.10E-01 6.10E-01 2.61E+03 1.00E+02 4.35E+05 2.74E+00 WOMS 2.36E+04 Punter 1980 1.30E+03 3M n-Nonane 5.10E+00 6.10E-01 9.40E-01 6.10E-01 NA 2.10E+02 1.05E+06 NA NA 2.47E+05 Journal of Applied Technology 6.62E+03 3M alpha-Pinene 1.60E+00 6.10E-01 8.70E-01 6.10E-01 NA NA NA NA NA NA NA 1.60E+01 Appell 1969 4-Ethyltoluene 4.20E-01 6.10E-01 ND 6.10E-01 NA NA NA NA NA NA NA NA NA 1,3,5-Trimethylbenzene 5.70E-01 6.10E-01 ND 6.10E-01 NA NA 1.25E+05 NA NA 2.70E+03 Journal of Applied Technology 2.00E+02 Deadman 1959 1,2,4-Trimethylbenzene 1.30E+00 6.10E-01 2.60E-01 6.10E-01 NA 7.30E+00 1.25E+05 NA NA 1.18E+04 Odor Thresholds 7.00E+02 Deadman 1959 d-Limonene ND 6.10E-01 1.30E+00 6.10E-01 NA NA NA NA NA 2.43E+03 3M 1.00E+01 Appell 1969 Isobutane NA NA 2.10E+01 NA NA NA NA NA NA NA NA NA NA Isobutene NA NA 5.40E+01 NA NA NA NA NA NA NA NA NA NA n-Butane NA NA 2.00E+01 NA NA NA 1.90E+06 NA NA 6.42E+06 Journal of Applied Technology 4.85E+05 3M tert-Butanol NA NA 6.60E+00 NA NA NA NA NA NA 2.91E+06 Odor Thresholds 1.00E+04 Passy 1892c n-Pentanal NA NA 2.50E+01 NA NA NA NA NA NA 9.86E+01 Journal of Applied Technology 9.00E+00 Backman 1917 n-Hexanal NA NA 3.80E+01 NA NA NA NA NA NA 3.90E+01 Teranishi 1974 1.84E+01 Guadagni 1963 2-Heptanal NA NA 8.20E+00 NA NA NA NA NA NA 1.40E+01 Guadagni 1963 6.00E+00 Deadman 1959 n-Decane NA NA 1.10E+01 NA NA NA NA NA NA NA NA 1.13E+04 Laffort 1973 Unidentified Compound NA NA 6.80E+00 NA NA NA NA NA NA NA NA NA NA Unidentified Compound NA NA 1.70E+01 NA NA NA NA NA NA NA NA NA NA C12H26 Branched Alkane NA NA 6.60E+00 NA NA NA NA NA NA NA NA NA NA C12H26 Branched Alkane NA NA 6.50E+00 NA NA NA NA NA NA NA NA NA NA n-Nonanal NA NA 1.30E+01 NA NA NA NA NA NA 1.70E+03 Pliska 1965 3.00E-01 Randebrock 1971 C12H26 Branched Alkane NA NA 9.20E+00 NA NA NA NA NA NA NA NA NA n-Dodecane NA NA 7.30E+00 NA NA NA NA NA NA NA NA 3.70E+04 Laffort 1973

Shell Pond Bay Point-Jan_2012 Ambient Air Data.xlsx/T 6_CAS TO-15 Hits Only 2/10/2012 ARCADIS Page 1 of 1 Table 7 January 25-26, 2012 Air Sampling: TO-17 Detected Compounds Data Report, Preliminary Air Sampling and Analysis Shell Pond, Bay Point, California

Sample ID: SP-A-BAG-012512 Sample ID: SP-A-FB-Bag-012612 Highest Odor Threshold Lowest Odor Threshold

ATSDR Minimal Intermediate Screening Detected Detected Inhalation Risk Value (lower of Permissible Ambient Concentration MRL Concentration MRL Levels CHHSL and Exposure Limit Data* Concentration Concentration Analyte (µg/m!) (µg/m!) (µg/m!) (µg/m!) (µg/m!) RSL-µg/m!) (µg/m!) (µg/m!) Source (µg/m!) Source (µg/m!) Source 2,6-bis(1,1-Dimethylethyl)-4-ethylphenol NA NA 7.20E+01 NA NA NA NA NA NA NA NA NA NA 2,6-Dimethylundecane 1.90E+01 NA NA NA NA NA NA NA NA NA NA NA NA 2-Butyl-1,1,3-trimethylcyclohexane + Dimethyltetrahydronaphthalene 1.10E+01 NA NA NA NA NA NA NA NA NA NA NA NA 2-Heptenal + Hexanoic acid NA NA 9.40E+00 NA NA NA NA NA NA 1.40E+01 Guadagni 1963 6.00E+00 Deadman 1959 3-Methyldecane + C12H24 Compound 1.30E+01 NA NA NA NA NA NA NA NA NA NA NA NA 4-Methyldecane 1.50E+01 NA NA NA NA NA NA NA NA NA NA NA NA C11H16 Alkylbenzene + 2-Methyldecalin 1.10E+01 NA NA NA NA NA NA NA NA NA NA NA NA C11H16 Alkylbenzene + C10H14 Alkylbenzene + 1-Methyldecalin 1.10E+01 NA NA NA NA NA NA NA NA NA NA NA NA C11H16 Alkylbenzene + Unidentified Isoparaffin + C11H22 Naphthene 1.00E+01 NA NA NA NA NA NA NA NA NA NA NA NA C11H24 Branched Alkane NA NA 4.20E+00 NA NA NA NA NA NA NA NA NA NA C11H24 Branched Alkane NA NA 3.60E+00 NA NA NA NA NA NA NA NA NA NA C11H24 Branched Alkane NA NA 5.90E+00 NA NA NA NA NA NA NA NA NA NA C12H24 Compound 2.30E+01 NA NA NA NA NA NA NA NA NA NA NA NA C12H24 Compound 1.90E+01 NA NA NA NA NA NA NA NA NA NA NA NA C12H24 Naphthene + C11H16 Alkylbenzene + C11H16 Alkylbenzene + Dimethyldihydroindene 9.20E+00 NA NA NA NA NA NA NA NA NA NA NA NA C12H24 Naphthene or Olefin NA NA 6.30E+00 NA NA NA NA NA NA NA NA NA NA C12H26 Branched Alkane 9.60E+00 NA 3.10E+00 NA NA NA NA NA NA NA NA NA NA C12H26 Branched Alkane + C11H14 Naphthene 9.50E+00 NA NA NA NA NA NA NA NA NA NA NA NA C12H26 Branched Alkane + Tetramethylbenzene Isomer + Unidentified Olefin 1.10E+01 NA NA NA NA NA NA NA NA NA NA NA NA C13H26 Naphthene 1.50E+01 NA NA NA NA NA NA NA NA NA NA NA NA C13H28 Branched Alkane 1.10E+01 NA 3.10E+00 NA NA NA NA NA NA NA NA NA NA Dimethyloctane Isomer 1.30E+01 NA NA NA NA NA NA NA NA NA NA NA NA n-Decane NA NA 8.70E+00 NA NA NA NA NA NA NA NA 1.13E+04 Laffort 1973 n-Dodecane NA NA 6.60E+00 NA NA NA NA NA NA NA NA 3.70E+04 Laffort 1973 n-Hexanal NA NA 3.50E+01 NA NA NA NA NA NA 3.90E+01 Teranishi 1974 1.84E+01 Guadagni 1963 n-Nonanal NA NA 1.20E+01 NA NA NA NA NA NA 1.70E+03 Pliska 1965 3.00E-01 Randebrock 1971 n-Octanal NA NA 3.00E+00 NA NA NA NA NA NA 5.00E+03 Pliska 1965 3.67E+00 Guadagni 1963 n-Pentanal NA NA 1.40E+01 NA NA NA NA NA NA 9.86E+01 Journal of Applied Technology 9.00E+00 Backman 1917 n-Undecane 9.20E+00 NA 4.70E+00 NA NA NA NA NA NA NA NA 2.30E+04 Laffort 1973 Unidentified Compound NA NA 5.80E+00 NA NA NA NA NA NA NA NA NA NA Unidentified Compound NA NA 1.60E+01 NA NA NA NA NA NA NA NA NA NA Unidentified Compound NA NA 2.80E+00 NA NA NA NA NA NA NA NA NA NA Unidentified Compound 1.30E+01 NA NA NA NA NA NA NA NA NA NA NA NA Unidentified Compound 2.20E+01 NA NA NA NA NA NA NA NA NA NA NA NA Unidentified Compound 1.60E+01 NA NA NA NA NA NA NA NA NA NA NA NA Unidentified Naphthene or Olefin NA NA 3.60E+00 NA NA NA NA NA NA NA NA NA NA Unidentified Siloxane + Unidentified Branched Alkane NA NA 3.20E+00 NA NA NA NA NA NA NA NA NA NA

Shell Pond Bay Point-Jan_2012 Ambient Air Data.xlsx/T 7_CAS TO-17 Hits Only 2/10/2012 ARCADIS Page 1 of 1 Table 8 January 25-26, 2012 Air Sampling: APH Detected Compounds Data Report, Preliminary Air Sampling and Analysis Shell Pond, Bay Point, California

Sample ID: SP-A-Bag-012512 Sample ID: SP-A-FB-Bag-012612 Highest Odor Threshold Lowest Odor Threshold ATSDR Minimal Intermediate Detected Detected Inhalation Risk Screening Permissible Concentration MRL Concentration MRL Levels Value MADEP Exposure Limit Ambient Data* Concentration Concentration Analyte (µg/m!) (µg/m!) (µg/m!) (µg/m!) (µg/m!) (µg/m!) (µg/m!) (µg/m!) Source (µg/m!) Source (µg/m!) Source C5 - C8 Aliphatic Hydrocarbons1,2 8.50E+02 2.40E+01 4.70E+01 2.40E+01 NA 2.00E+02 NA NA NA NA NA NA NA C9 - C12 Aliphatic Hydrocarbons1,3 5.60E+03 1.20E+01 1.40E+02 1.20E+01 NA 2.00E+02 NA NA NA NA NA NA NA C9 - C10 Aromatic Hydrocarbons 9.30E+01 6.10E+00 ND 6.10E+00 NA 5.00E+01 NA NA NA NA NA NA NA

"C5-C8 Aliphatic Hydrocarbons exclude the concentration of Target APH analytes eluting in that range.

#C9-C12 Aliphatic Hydrocarbons exclude concentration of Target APH Analytes eluting in that range and concentration of C 9-C10 Aromatic Hydrocarbons.

Shell Pond Bay Point-Jan_2012 Ambient Air Data.xlsx/T 8_CAS APH Hits Only 2/10/2012 ARCADIS Page 1 of 1 Table 9 January 25-26, 2012 Air Sampling: Carboxylic Acid Detected Compounds Data Report, Preliminary Air Sampling and Analysis Shell Pond, Bay Point, California Sample ID: SP-A-BAG-012512 Sample ID: SP-A-FB-Bag-012612 Highest Odor Threshold Lowest Odor Threshold ATSDR Minimal Intermediate Detected Detected Inhalation Risk Screening Value Permissible Ambient Concentration MRL Concentration MRL Levels (lower of CHHSL Exposure Limit Data* Concentration Concentration Analyte (µg/m!) (µg/m!) (µg/m!) (µg/m!) (µg/m!) and RSL-µg/m!) (µg/m!) (µg/m!) Source (µg/m!) Source (µg/m!) Source Acetic Acid ND 2.20E+01 8.00E+01 2.20E+01 NA NA 2.50E+04 NA NA 1.00E+04 Passy 1893b 2.50E+01 Jung 1936 Propionic Acid (Propanoic) ND 2.70E+00 4.00E+00 2.70E+00 NA NA 3.00E+04 NA NA 8.90E+02 Stone 1965 3.00E+00 Goldenberg 1967 Pentanoic Acid (Valeric) ND 2.60E+00 4.80E+00 2.60E+00 NA NA NA NA NA 2.90E+04 Alison 1919 8.00E-01 Henning 1924 Hexanoic Acid (Caproic) ND 2.60E+00 1.10E+01 2.60E+00 NA NA NA NA NA 5.20E+02 Tempelaar 1913 5.21E+00 Washburn 1926

Shell Pond Bay Point-Jan_2012 Ambient Air Data.xlsx/CAS Carboxylic Acids Hits Only 2/10/2012 ARCADIS Page 1 of 1 Table 10 January 25-26, 2012 Air Sampling: Aldehyde Detected Compounds Data Report, Preliminary Air Sampling and Analysis Shell Pond, Bay Point, California

Sample ID: SP-A-BAG-012512 Sample ID: SP-A-FB-Bag-012612 Highest Odor Threshold Lowest Odor Threshold ATSDR Minimal Intermediate Detected Detected Inhalation Risk Screening Value Permissible Ambient Concentration MRL Concentration MRL Levels (lower of CHHSL Exposure Limit Data* Concentration Concentration Analyte (µg/m!) (µg/m!) (µg/m!) (µg/m!) (µg/m!) and RSL-µg/m!) (µg/m!) (µg/m!) Source (µg/m!) Source (µg/m!) Source Acetaldehyde 5.60E+00 1.00E+00 2.20E+01 1.00E+00 NA 1.10E+00 4.50E+04 9.01E-01 WOMS 3.78E+02 Odor Control 1.20E+01 Gofmekler 1967 Formaldehyde ND 1.00E+00 1.90E+01 1.00E+00 3.69E+01 1.90E-01 9.21E+02 1.60E+00 WOMS 1.23E+03 Odor Control 1.02E+03 Journal of Applied Technology Hexanaldehyde (Hexanal) 7.70E+00 1.00E+00 6.60E+01 5.00E+00 NA NA NA NA NA NA NA 3.90E+01 Teranishi 1974 Isovaleraldehyde 4.90E+00 1.00E+00 ND 1.00E+00 NA NA NA NA NA NA NA 5.28E-01 Guadagni 1963 n-Butyraldehyde (Butanal) 2.10E+00 1.00E+00 5.10E+00 1.00E+00 NA NA NA NA NA 1.15E+02 Odor Control 1.30E+01 Hellman 1974 Propionaldehyde (Propanal) 1.10E+00 1.00E+00 2.00E+00 1.00E+00 NA 8.30E+00 NA NA NA 3.44E+02 3M 2.00E+01 Hellman 1974 Valeraldehyde (Pentanal) 3.40E+00 1.00E+00 2.60E+01 1.00E+00 NA NA 1.75E+05 NA NA 9.86E+01 Journal of Applied Technology 9.00E+00 Backman 1917

Shell Pond Bay Point-Jan_2012 Ambient Air Data.xlsx/T 10_CAS Aldehydes Hits Only 2/10/2012 ARCADIS Page 1 of 1 Table 11 January 25-26, 2012 Air Sampling: TO-15 Complete Analytical Results Data Report, Preliminary Air Sampling and Analysis Shell Pond, Bay Point, California Sample ID: SP-A-BAG-012512 Sample ID: SP-A-FB-Bag-012612 Highest Odor Threshold Lowest Odor Threshold

ATSDR Minimal Intermediate Cal-OSHA Detected Detected Inhalation Risk Screening Value Permissible Ambient Concentration MRL Concentration MRL Levels (lower of CHHSL Exposure Limit Data* Concentration Concentration Analyte (µg/m!) (µg/m!) (µg/m!) (µg/m!) (µg/m!) and RSL: µg/m!) (µg/m!) (µg/m!) Source (µg/m!) Source (µg/m!) Source Propene 4.90E+00 6.10E-01 1.70E+00 6.10E-01 NA 3.10E+03 NA NA NA 1.31E+05 Journal of Applied Technology 2.93E+04 3M Dichlorodifluoromethane 2.00E+00 6.10E-01 2.60E+00 6.10E-01 NA 1.00E+02 4.95E+06 NA NA NA NA NA NA Chloromethane 2.80E-01 2.40E-01 3.40E-01 2.40E-01 4.13E+02 9.40E+01 1.05E+05 NA NA 2.11E+05 3M 2.10E+04 Leonardus 1969 Freon 114 ND 6.10E-01 ND 6.10E-01 NA NA 7.00E+06 NA NA NA NA NA NA Vinyl Chloride ND 1.20E-01 ND 1.20E-01 7.67E+01 1.60E-01 NA NA NA 7.67E+06 Journal of Applied Technology 6.48E+02 3M 1,3-Butadiene ND 2.40E-01 ND 2.40E-01 NA 8.10E-02 2.20E+03 3.43E-01 CA Resources Board 3.54E+03 Journal of Applied Technology 9.96E+02 Hellman 1974 Bromomethane ND 1.20E-01 ND 1.20E-01 1.94E+02 5.20E+00 3.88E+03 NA NA NA NA NA NA Chloroethane ND 1.20E-01 ND 1.20E-01 NA 5.28E+00 2.64E+05 NA NA 1.07E+04 3M 1.00E+04 Backman 1917 Ethanol 3.30E+00 6.10E+00 7.70E+01 6.10E+00 NA NA 1.90E+06 NA NA 8.29E+06 Moncrieff 1951 2.57E+02 3M Acetonitrile 4.70E+00 6.10E-01 2.90E+00 6.10E-01 NA 6.30E+01 7.00E+04 NA NA 1.95E+06 Dravnieks 1974 8.70E+04 Pozzani et al. 1959 Acrolein 8.60E-01 2.40E+00 2.20E+00 2.40E+00 9.17E-02 2.10E-02 2.50E+02 6.42E-02 WOMS 4.13E+03 Odor Thresholds 5.00E+01 Teranishi 1974 Acetone 1.20E+02 6.10E+00 1.00E+01 6.10E+00 3.09E+04 3.20E+04 1.20E+06 NA NA 1.50E+06 Dravnieks 1974 1.09E+04 3M Trichlorofluoromethane 1.80E-01 1.20E-01 4.80E-01 1.20E-01 NA 7.30E+02 5.60E+06 NA NA 4.27E+04 3M 2.81E+04 Journal of Applied Technology Isopropanol (2-Propanol) 2.40E+00 1.20E+00 1.50E+00 1.20E+00 NA 7.30E+03 NA NA NA 5.40E+06 Koster 1971 1.08E+03 3M Acrylonitrile 3.40E-01 6.10E-01 4.80E-01 6.10E-01 NA 3.60E-02 4.34E+03 NA NA 4.64E+04 Odor Control 3.40E+03 Stalker 1963 1,1-Dichloroethene ND 1.20E-01 ND 1.20E-01 7.93E+01 2.10E+02 7.90E+05 NA NA 5.50E+06 Irish 1962 1.41E+05 3M Methylene Chloride 4.50E+00 6.10E-01 6.40E+00 6.10E-01 1.04E+03 5.20E+00 8.70E+04 1.74E+00 CA Resources Board 8.69E+05 Journal of Applied Technology 3.16E+03 3M Allyl Chloride (3-Chloro-1-propene) ND 1.20E-01 ND 1.20E-01 NA 4.10E-01 3.00E+03 NA NA 3.76E+03 Journal of Applied Technology 1.47E+03 Odor Control Trichlorotrifluoroethane ND 1.20E-01 ND 1.20E-01 NA NA NA NA NA NA NA 3.50E+05 Hellman 1974 Carbon Disulfide 6.60E+00 6.10E+00 5.90E-01 6.10E+00 NA 7.30E+02 1.20E+04 NA NA 6.54E+02 Odor Control 1.21E+00 Journal of Applied Technology trans-1,2-Dichloroethene ND 1.20E-01 ND 1.20E-01 7.93E+02 6.30E+01 7.90E+05 NA NA 1.10E+06 Lehmann 1936 6.74E+04 Journal of Applied Technology 1,1-Dichloroethane ND 1.20E-01 ND 1.20E-01 NA 1.50E+00 4.00E+05 NA NA NA NA 1.04E+06 3M Methyl tert-Butyl Ether ND 1.20E-01 ND 1.20E-01 NA 9.40E+00 1.44E+05 3.82E+00 CA Resources Board NA NA 1.91E+02 3M Vinyl Acetate 3.70E+00 6.10E+00 ND 6.10E+00 3.52E+01 2.10E+02 3.00E+04 NA NA 2.12E+03 3M 4.00E+01 Hellman 1974 2-Butanone (MEK) 3.20E+01 6.10E+00 6.60E-01 6.10E+00 NA 5.20E+03 5.90E+05 3.24E-01 CA Resources Board 2.50E+05 Dravnieks 1974 7.97E+02 3M cis-1,2-Dichloroethene ND 1.20E-01 ND 1.20E-01 NA 15900! 7.90E+05 NA NA NA NA 7.58E+04 3M Ethyl Acetate 6.70E-01 1.20E+00 ND 1.20E+00 NA NA 1.40E+06 NA NA 1.80E+05 May 1966 4.32E+00 Journal of Applied Technology n-Hexane 4.90E-01 6.10E-01 1.60E-01 6.10E-01 NA 7.30E+02 1.80E+05 NA NA 8.75E+05 Patty 1929 7.73E+04 3M Chloroform ND 1.20E-01 ND 1.20E-01 2.44E+02 1.10E-01 9.78E+03 1.42E-01 CA Resources Board 3.00E+06 Tempelaar 1913 3.10E+04 Passy 1893a Tetrahydrofuran (THF) ND 6.10E-01 ND 6.10E-01 NA NA 5.90E+05 NA NA 9.14E+04 Odor Thresholds 5.90E+03 Journal of Applied Technology 1,2-Dichloroethane ND 1.20E-01 ND 1.20E-01 NA 9.40E-02 4.00E+03 NA NA 1.50E+06 Jones 1955c 2.50E+04 Hellman 1974 1,1,1-Trichloroethane ND 1.20E-01 ND 1.20E-01 3.82E+03 5.20E+03 1.90E+06 NA NA 2.13E+06 Odor Thresholds 1.22E+05 3M Benzene 1.70E-01 1.20E-01 1.90E-01 1.20E-01 1.92E+01 3.10E-01 NA 1.82E+00 CA Resources Board 3.80E+05 Dravnieks 1974 8.80E+03 Schley 1934 Carbon Tetrachloride ND 1.20E-01 ND 1.20E-01 1.89E+02 4.10E-01 1.26E+04 5.16E-01 CA Resources Board 3.80E+06 Dravnieks 1974 1.32E+05 Leonardus 1969 Cyclohexane ND 1.20E+00 ND 1.20E+00 NA 6.30E+03 1.05E+06 NA NA 2.70E+06 Dravnieks 1974 3.56E+04 Stone 1972 1,2-Dichloropropane ND 1.20E-01 ND 1.20E-01 3.24E+01 2.40E-01 3.50E+05 NA NA 3.93E+03 3M 1.20E+03 Hellman 1974 Bromodichloromethane ND 1.20E-01 ND 1.20E-01 NA 6.60E-02 NA NA NA NA NA NA NA Trichloroethene ND 1.20E-01 ND 1.20E-01 5.37E+02 4.30E-01 1.35E+05 3.06E-01 CA Resources Board 5.8 E+5 May 1966 7.30E+03 3M 1,4-Dioxane ND 6.10E-01 ND 6.10E-01 3.60E+03 3.20E-01 1.00E+03 NA NA 9.40E+06 Koster 1971 2.90E+03 Hellman 1974 Methyl Methacrylate ND 1.20E+00 ND 1.20E+00 NA 7.30E+02 2.05E+05 NA NA 1.40E+03 Hellman 1974 2.00E+02 Hellman 1974 n-Heptane 2.00E+00 6.10E-01 ND 6.10E-01 NA NA 1.60E+06 NA NA 9.43E+05 Odor Thresholds 4.01E+04 3M cis-1,3-Dichloropropene ND 6.10E-01 ND 6.10E-01 3.63E+01 6.10E-01 5.00E+03 NA NA NA NA NA NA 4-Methyl-2-Pentanone 1.90E+00 6.10E-01 ND 6.10E-01 NA 4.10E+03 NA NA NA 3.20E+04 May 1966 4.00E+01 Hellmann 1974 trans-1,3-Dichloropropene ND 6.10E-01 ND 6.10E-01 3.63E+01 6.10E-01 5.00E+03 NA NA NA NA NA NA 1,1,2-Trichloroethane ND 1.20E-01 ND 1.20E-01 NA 1.50E-01 4.50E+04 NA NA NA NA NA NA Toluene 3.50E-01 6.10E-01 7.40E-01 6.10E-01 NA 5.20E+03 1.88E+05 4.30E+00 CA Resources Board 2.60E+05 May 1966 8.00E+01 Nader 1958 2-Hexanone ND 6.10E-01 4.70E-01 6.10E-01 NA 3.10E+01 4.00E+03 NA NA 6.81E+02 3M 2.80E+02 Backman 1917 Dibromochloromethane ND 1.20E-01 ND 1.20E-01 NA 9.00E-02 NA NA NA NA NA NA NA 1,2-Dibromoethane ND 1.20E-01 ND 1.20E-01 NA 4.10E-03 1.00E+03 NA NA NA NA 7.57E+04 3M Butyl Acetate ND 6.10E-01 ND 6.10E-01 NA NA 7.10E+05 NA NA 1.75E+06 Koster 1971 3.00E+01 Hellman 1974 n-Octane 4.90E+00 6.10E-01 7.10E-01 6.10E-01 NA NA 1.45E+06 NA NA 7.10E+05 May 1966 2.69E+04 3M Tetrachloroethene ND 1.20E-01 ND 1.20E-01 NA 4.10E-01 1.70E+05 NA NA 3.20E+05 May 1966 3.17E+04 Leonardus 1969 Chlorobenzene ND 1.20E-01 ND 1.20E-01 NA 5.20E+01 4.60E+04 2.30E-01 CA Resources Board 1.84E+06 Journal of Applied Technology 9.10E+02 Leonardus 1969 Ethylbenzene 5.40E-01 6.10E-01 1.50E-01 6.10E-01 8.68E+03 9.70E+01 4.35E+05 1.30E+00 CA Resources Board 9.98E+03 3M 4.00E+02 Koster 1971 m,p-Xylene 1.00E+00 6.10E-01 5.90E-01 6.10E-01 2.61E+03 1.00E+02 4.35E+05 2.74E+00 WOMS 8.60E+04 Koster 1971 3.50E+02 Stuiver 1958 Bromoform ND 6.10E-01 ND 6.10E-01 NA 2.20E+00 5.00E+03 NA NA 5.00E+03 Passy 1893a 2.00E+03 Passy 1893a Styrene ND 6.10E-01 2.50E-01 6.10E-01 NA 1.00E+03 2.15E+05 2.13E-01 CA Resources Board 1.47E+04 3M 7.30E+01 Stalker 1963 o-Xylene 5.90E-01 6.10E-01 2.10E-01 6.10E-01 2.61E+03 1.00E+02 4.35E+05 2.74E+00 WOMS 2.36E+04 Punter 1980 1.30E+03 3M n-Nonane 5.10E+00 6.10E-01 9.40E-01 6.10E-01 NA 2.10E+02 1.05E+06 NA NA 2.47E+05 Journal of Applied Technology 6.62E+03 3M 1,1,2,2-Tetrachloroethane ND 1.20E-01 ND 1.20E-01 NA 4.20E-02 7.00E+03 NA NA 5.01E+04 Odor Thresholds 1.44E+03 3M Cumene ND 6.10E-01 ND 6.10E-01 NA 4.20E+02 2.45E+05 NA NA 4.33E+02 Journal of Applied Technology 3.93E+01 Hellman 1974 alpha-Pinene 1.60E+00 6.10E-01 8.70E-01 6.10E-01 NA NA NA NA NA NA NA 1.60E+01 Appell 1969 n-Propylbenzene ND 6.10E-01 ND 6.10E-01 NA 1.00E+03 NA NA NA NA NA NA NA 4-Ethyltoluene 4.20E-01 6.10E-01 ND 6.10E-01 NA NA NA NA NA NA NA NA NA 1,3,5-Trimethylbenzene 5.70E-01 6.10E-01 ND 6.10E-01 NA NA 1.25E+05 NA NA 2.70E+03 Journal of Applied Technology 2.00E+02 Deadman 1959 1,2,4-Trimethylbenzene 1.30E+00 6.10E-01 2.60E-01 6.10E-01 NA 7.30E+00 1.25E+05 NA NA 1.18E+04 Odor Thresholds 7.00E+02 Deadman 1959 Benzyl Chloride ND 6.10E-01 ND 6.10E-01 NA 5.00E-02 5.00E+03 NA NA 2.43E+02 Odor Control 1.76E+02 3M 1,3-Dichlorobenzene ND 1.20E-01 ND 1.20E-01 NA NA NA 6.01E-01 CA Resources Board NA NA NA NA

Shell Pond Bay Point-Jan_2012 Ambient Air Data.xlsx/T 11_CAS TO-15 Results 2/10/2012 ARCADIS Page 1 of 2 Table 11 January 25-26, 2012 Air Sampling: TO-15 Complete Analytical Results Data Report, Preliminary Air Sampling and Analysis Shell Pond, Bay Point, California Sample ID: SP-A-BAG-012512 Sample ID: SP-A-FB-Bag-012612 Highest Odor Threshold Lowest Odor Threshold

Shell Pond Bay Point-Jan_2012 Ambient Air Data.xlsx/T 11_CAS TO-15 Results 2/10/2012 ARCADIS Page 2 of 2 Table 12 January 25-26, 2012 Air Sampling: TO-17 Complete Analytical Results Data Report, Preliminary Air Sampling and Analysis Shell Pond, Bay Point, California

Sample ID: SP-A-BAG-012512 Sample ID: SP-A-FB-Bag-012612 Highest Odor Threshold Lowest Odor Threshold ATSDR Minimal Intermediate Screening Detected Detected Inhalation Risk Value (lower of Permissible Ambient Concentration MRL Concentration MRL Levels CHHSL and Exposure Limit Data* Concentration Concentration Analyte (µg/m!) (µg/m!) (µg/m!) (µg/m!) (µg/m!) RSL-µg/m!) (µg/m!) (µg/m!) Source (µg/m!) Source (µg/m!) Source 2,6-bis(1,1-Dimethylethyl)-4-ethylphenol NA NA 7.20E+01 NA NA NA NA NA NA NA NA NA NA 2,6-Dimethylundecane 1.90E+01 NA NA NA NA NA NA NA NA NA NA NA NA 2-Butyl-1,1,3-trimethylcyclohexane + Dimethyltetrahydronaphthalene 1.10E+01 NA NA NA NA NA NA NA NA NA NA NA NA 2-Heptenal + Hexanoic acid NA NA 9.40E+00 NA NA NA NA NA NA 1.40E+01 Guadagni 1963 6.00E+00 Deadman 1959 3-Methyldecane + C12H24 Compound 1.30E+01 NA NA NA NA NA NA NA NA NA NA NA NA 4-Methyldecane 1.50E+01 NA NA NA NA NA NA NA NA NA NA NA NA C11H16 Alkylbenzene + 2-Methyldecalin 1.10E+01 NA NA NA NA NA NA NA NA NA NA NA NA C11H16 Alkylbenzene + C10H14 Alkylbenzene + 1-Methyldecalin 1.10E+01 NA NA NA NA NA NA NA NA NA NA NA NA C11H16 Alkylbenzene + Unidentified Isoparaffin + C11H22 Naphthene 1.00E+01 NA NA NA NA NA NA NA NA NA NA NA NA C11H24 Branched Alkane NA NA 4.20E+00 NA NA NA NA NA NA NA NA NA NA C11H24 Branched Alkane NA NA 3.60E+00 NA NA NA NA NA NA NA NA NA NA C11H24 Branched Alkane NA NA 5.90E+00 NA NA NA NA NA NA NA NA NA NA C12H24 Compound 2.30E+01 NA NA NA NA NA NA NA NA NA NA NA NA C12H24 Compound 1.90E+01 NA NA NA NA NA NA NA NA NA NA NA NA C12H24 Naphthene + C11H16 Alkylbenzene + C11H16 Alkylbenzene + Dimethyldihydroindene 9.20E+00 NA NA NA NA NA NA NA NA NA NA NA NA C12H24 Naphthene or Olefin NA NA 6.30E+00 NA NA NA NA NA NA NA NA NA NA C12H26 Branched Alkane 9.60E+00 NA 3.10E+00 NA NA NA NA NA NA NA NA NA NA C12H26 Branched Alkane + C11H14 Naphthene 9.50E+00 NA NA NA NA NA NA NA NA NA NA NA NA C12H26 Branched Alkane + Tetramethylbenzene Isomer + Unidentified Olefin 1.10E+01 NA NA NA NA NA NA NA NA NA NA NA NA C13H26 Naphthene 1.50E+01 NA NA NA NA NA NA NA NA NA NA NA NA C13H28 Branched Alkane 1.10E+01 NA 3.10E+00 NA NA NA NA NA NA NA NA NA NA Dimethyloctane Isomer 1.30E+01 NA NA NA NA NA NA NA NA NA NA NA NA n-Decane NA NA 8.70E+00 NA NA NA NA NA NA NA NA 1.13E+04 Laffort 1973 n-Dodecane NA NA 6.60E+00 NA NA NA NA NA NA NA NA 3.70E+04 Laffort 1973 n-Hexanal NA NA 3.50E+01 NA NA NA NA NA NA 3.90E+01 Teranishi 1974 1.84E+01 Guadagni 1963 n-Nonanal NA NA 1.20E+01 NA NA NA NA NA NA 1.70E+03 Pliska 1965 3.00E-01 Randebrock 1971 n-Octanal NA NA 3.00E+00 NA NA NA NA NA NA 5.00E+03 Pliska 1965 3.67E+00 Guadagni 1963 n-Pentanal NA NA 1.40E+01 NA NA NA NA NA NA 9.86E+01 Journal of Applied Technology 9.00E+00 Backman 1917 n-Undecane 9.20E+00 NA 4.70E+00 NA NA NA NA NA NA NA NA 2.30E+04 Laffort 1973 Unidentified Compound NA NA 5.80E+00 NA NA NA NA NA NA NA NA NA NA Unidentified Compound NA NA 1.60E+01 NA NA NA NA NA NA NA NA NA NA Unidentified Compound NA NA 2.80E+00 NA NA NA NA NA NA NA NA NA NA Unidentified Compound 1.30E+01 NA NA NA NA NA NA NA NA NA NA NA NA Unidentified Compound 2.20E+01 NA NA NA NA NA NA NA NA NA NA NA NA Unidentified Compound 1.60E+01 NA NA NA NA NA NA NA NA NA NA NA NA Unidentified Naphthene or Olefin NA NA 3.60E+00 NA NA NA NA NA NA NA NA NA NA Unidentified Siloxane + Unidentified Branched Alkane NA NA 3.20E+00 NA NA NA NA NA NA NA NA NA NA

Shell Pond Bay Point-Jan_2012 Ambient Air Data.xlsx/T 12_CAS TO-17 TIC Results 2/10/2012 ARCADIS Page 1 of 1 Table 13 January 25-26, 2012 Air Sampling: ASTM D-5504 Complete Analytical Results Data Report, Preliminary Air Sampling and Analysis Shell Pond, Bay Point, California Sample ID: SP-A-BAG-012512 Sample ID: SP-A-FB-Bag-012612 Highest Odor Threshold Lowest Odor Threshold ATSDR Minimal Intermediate Detected Detected Inhalation Risk Screening Value Permissible Ambient Concentration MRL Concentration MRL Levels (lower of CHHSL Exposure Limit Data* Concentration Concentration Analyte (µg/m!) (µg/m!) (µg/m!) (µg/m!) (µg/m!) and RSL-µg/m!) (µg/m!) (µg/m!) Source (µg/m!) Source (µg/m!) Source 2,5-Dimethylthiophene ND 2.30E+01 ND 2.30E+01 NA NA NA NA NA NA NA NA NA 2-Ethylthiophene ND 2.30E+01 ND 2.30E+01 NA NA NA NA NA NA NA NA NA 3-Methylthiophene ND 2.00E+01 ND 2.00E+01 NA NA NA NA NA NA NA NA NA Carbon Disulfide ND 7.80E+00 ND 7.80E+00 NA 7.30E+02 1.20E+04 NA NA 7.40E+04 Columbia Analytical Services 7.70E+00 Columbia Analytical Services Carbonyl Sulfide ND 1.20E+01 ND 1.20E+01 NA NA NA NA NA NA NA 2.50E+02 Polgar et al. 1975 Diethyl Disulfide ND 1.20E+01 ND 1.20E+01 NA NA NA NA NA NA NA 3.00E-01 Zwaardemaker 1914 Diethyl Sulfide ND 1.80E+01 ND 1.80E+01 NA NA NA NA NA 2.21E+01 Odor Control 4.50E+00 Deadman 1959 Dimethyl Disulfide ND 9.60E+00 ND 9.60E+00 NA NA NA NA NA 1.60E+02 Columbia Analytical Services 2.60E-02 Columbia Analytical Services Dimethyl Sulfide ND 1.30E+01 ND 1.30E+01 NA NA NA NA NA 3.00E+01 Lindvall 1970 1.00E-01 Columbia Analytical Services Ethyl Mercaptan ND 1.30E+01 ND 1.30E+01 NA NA 1.00E+03 NA NA 3.60E+01 Columbia Analytical Services 1.30E-02 Columbia Analytical Services Ethyl Methyl Sulfide ND 1.60E+01 ND 1.60E+01 NA NA NA NA NA 4.36E+01 Odor Control 4.36E+01 Odor Control Hydrogen Sulfide ND 7.00E+00 ND 7.00E+00 2.79E+01 2.10E+00 1.40E+04 NA NA 1.10E+03 Dalla et al. 1939 7.00E-02 Columbia Analytical Services Isobutyl Mercaptan ND 1.80E+01 ND 1.80E+01 NA NA NA NA NA 8.00E+03 Alisov 1919 6.00E-03 Stuiver 1958 Isopropyl Mercaptan ND 1.60E+01 ND 1.60E+01 NA NA NA NA NA 2.00E-02 Stuiver 1958 2.50E-03 Stuiver 1958 Methyl Mercaptan ND 9.80E+00 ND 9.80E+00 NA NA 1.00E+03 NA NA 4.20E+01 Columbia Analytical Services 1.50E-04 Columbia Analytical Services n-Butyl Mercaptan ND 1.80E+01 ND 1.80E+01 NA NA 1.50E+03 NA NA 1.10E+03 Columbia Analytical Services 2.00E-02 Columbia Analytical Services n-Propyl Mercaptan ND 1.60E+01 ND 1.60E+01 NA NA NA NA NA 5.00E-01 Columbia Analytical Services 8.00E-04 Columbia Analytical Services tert-Butyl Mercaptan ND 1.80E+01 ND 1.80E+01 NA NA NA NA NA 5.00E-01 Columbia Analytical Services 9.00E-02 Stuiver 1958 Tetrahydrothiophene ND 1.80E+01 ND 1.80E+01 NA NA NA NA NA NA NA 1.80E+00 Deadman 1959 Thiophene ND 1.70E+01 ND 1.70E+01 NA NA NA NA NA 2.10E+04 Deadman 1959 3.10E+00 Nevers 1965

Shell Pond Bay Point-Jan_2012 Ambient Air Data.xlsx/T 13_CAS ASTM Results 2/10/2012 ARCADIS Page 1 of 1 Table 14 January 25-26, 2012 Air Sampling: Amine Complete Analytical Results Data Report, Preliminary Air Sampling and Analysis Shell Pond, Bay Point, California Sample ID: SP-A-Bag-012612 Sample ID: SP-A-FB-Bag-012612 Highest Odor Threshold Lowest Odor Threshold ATSDR Minimal Intermediate Screening Cal-OSHA Detected Detected Inhalation Risk Value (lower of Permissible Ambient Concentration MRL Concentration MRL Levels CHHSL and Exposure Limit Data* Concentration Concentration Analyte (µg/m!) (µg/m!) (µg/m!) (µg/m!) (µg/m!) RSL-µg/m!) (µg/m!) (µg/m!) Source (µg/m!) Source (µg/m!) Source Diethylamine ND 5.10E+00 ND 5.10E+00 NA NA 1.50E+04 NA NA 1.49E+03 Odor Control 1.00E+01 Geier 1936 Diisopropylamine ND 5.10E+00 ND 5.10E+00 NA NA 2.00E+04 NA NA 7.45E+03 Journal of Applied Technology 5.38E+02 Odor Threshold Dimethylamine ND 5.30E+00 ND 5.30E+00 NA NA 9.20E+03 NA NA 1.00E+03 Geier 1936 1.40E+00 Columbia Analytical Services Dipropylamine ND 5.00E+00 ND 5.00E+00 NA NA NA NA NA NA NA 8.00E+01 Hellman 1974 Ethylamine ND 5.50E+00 ND 5.50E+00 NA NA 9.20E+03 NA NA 6.45E+03 Columbia Analytical Services 1.50E+01 Columbia Analytical Services Isobutylamine ND 5.10E+00 ND 5.10E+00 NA NA NA NA NA NA NA NA NA Isopropylamine ND 5.10E+00 ND 5.10E+00 NA NA 1.20E+04 NA NA 2.90E+03 Journal of Applied Technology 5.00E+02 Hellman 1974 n-Butylamine ND 5.20E+00 ND 5.20E+00 NA NA NA NA NA 4.16E+04 Columbia Analytical Services 1.59E+02 3M n-Propylamine ND 5.20E+00 ND 5.20E+00 NA NA NA NA NA NA NA 2.20E+01 Stephens 1971 sec-Butylamine ND 5.10E+00 ND 5.10E+00 NA NA NA NA NA NA NA NA NA tert-Butylamine ND 1.00E+01 ND 1.00E+01 NA NA NA NA NA NA NA NA NA Triethylamine ND 5.20E+00 ND 5.20E+00 NA 7.30E+00 4.10E+03 NA NA 1.20E+05 Columbia Analytical Services 4.14E+00 3M Trimethylamine ND 5.40E+00 ND 5.40E+00 NA NA 1.20E+04 NA NA 2.10E+03 Columbia Analytical Services 2.40E-01 Columbia Analytical Servies

Shell Pond Bay Point-Jan_2012 Ambient Air Data.xlsx/T 14_CAS Amines Results 2/10/2012 ARCADIS Page 1 of 1 Table 15 January 25-26, 2012 Air Sampling: APH Complete Analytical Results Data Report, Preliminary Air Sampling and Analysis Shell Pond, Bay Point, California

Sample ID: SP-A-Bag-012512 Sample ID: SP-A-FB-Bag-012612 Highest Odor Threshold Lowest Odor Threshold ATSDR Minimal Intermediate Detected Detected Inhalation Risk Screening Permissible Ambient Concentration MRL Concentration MRL Levels Value MADEP Exposure Limit Data* Concentration Concentration Analyte (µg/m!) (µg/m!) (µg/m!) (µg/m!) (µg/m!) (µg/m!) (µg/m!) (µg/m!) Source (µg/m!) Source (µg/m!) Source 1,2 C5 - C8 Aliphatic Hydrocarbons 8.50E+02 2.40E+01 4.70E+01 2.40E+01 NA 2.00E+02 NA NA NA NA NA NA NA 1,3 C9 - C12 Aliphatic Hydrocarbons 5.60E+03 1.20E+01 1.40E+02 1.20E+01 NA 2.00E+02 NA NA NA NA NA NA NA

C9 - C10 Aromatic Hydrocarbons 9.30E+01 6.10E+00 ND 6.10E+00 NA 5.00E+01 NA NA NA NA NA NA NA

"C5-C8 Aliphatic Hydrocarbons exclude the concentration of Target APH analytes eluting in that range.

#C9-C12 Aliphatic Hydrocarbons exclude concentration of Target APH Analytes eluting in that range and concentration of C9-C10 Aromatic Hydrocarbons.

Shell Pond Bay Point-Jan_2012 Ambient Air Data.xlsx/T 15_CAS APH Results 2/10/2012 ARCADIS Page 1 of 1 Table 16 January 25-26, 2012 Air Sampling: Carboxylic Acid Complete Analytical Results Data Report, Preliminary Air Sampling and Analysis Shell Pond, Bay Point, California Sample ID: SP-A-BAG-012512 Sample ID: SP-A-FB-Bag-012612 Highest Odor Threshold Lowest Odor Threshold ATSDR Minimal Intermediate Detected Detected Inhalation Risk Screening Value Permissible Ambient Concentration MRL Concentration MRL Levels (lower of CHHSL Exposure Limit Data* Concentration Concentration Analyte (µg/m!) (µg/m!) (µg/m!) (µg/m!) (µg/m!) and RSL-µg/m!) (µg/m!) (µg/m!) Source (µg/m!) Source (µg/m!) Source Acetic Acid ND 2.20E+01 8.00E+01 2.20E+01 NA NA 2.50E+04 NA NA 1.00E+04 Passy 1893b 2.50E+01 Jung 1936 Propionic Acid (Propanoic) ND 2.70E+00 4.00E+00 2.70E+00 NA NA 3.00E+04 NA NA 8.90E+02 Stone 1965 3.00E+00 Goldenberg 1967 2-Methylpropanoic Acid (Isobutyric) ND 2.60E+00 ND 2.60E+00 NA NA NA NA NA NA NA NA NA Butanoic Acid (Butyric) ND 2.60E+00 ND 2.60E+00 NA NA NA NA NA 9.01E+03 Odor Control 4.00E-01 Goldenberg 1967 2-Methylbutanoic Acid ND 2.60E+00 ND 2.60E+00 NA NA NA NA NA NA NA NA NA 3-Methylbutanoic Acid (Isovaleric) ND 2.60E+00 ND 2.60E+00 NA NA NA NA NA NA NA 5.00E+00 Kerka 1956 Pentanoic Acid (Valeric) ND 2.60E+00 4.80E+00 2.60E+00 NA NA NA NA NA 2.90E+04 Alison 1919 8.00E-01 Henning 1924 2-Methylpentanoic Acid ND 2.60E+00 ND 2.60E+00 NA NA NA NA NA NA NA NA NA 3-Methylpentanoic Acid ND 2.60E+00 ND 2.60E+00 NA NA NA NA NA NA NA NA NA 4-Methylpentanoic Acid (Isocaproic) ND 2.60E+00 ND 2.60E+00 NA NA NA NA NA 4.20E+02 Backman 1917 3.50E+02 Backman 1917 Hexanoic Acid (Caproic) ND 2.60E+00 1.10E+01 2.60E+00 NA NA NA NA NA 5.20E+02 Tempelaar 1913 5.21E+00 Washburn 1926 Heptanoic Acid (Enanthoic) ND 2.50E+00 ND 2.50E+00 NA NA NA NA NA 3.00E+02 Passy 1893b 3.46E-02 Washburn 1926 2-Ethylhexanoic Acid ND 2.60E+00 ND 2.60E+00 NA NA NA NA NA NA NA NA NA Cyclohexanecarboxylic Acid ND 2.60E+00 ND 2.60E+00 NA NA NA NA NA NA NA NA NA Octanoic Acid (Caprylic) ND 2.60E+00 ND 2.60E+00 NA NA NA NA NA 3.20E+03 Jones 1955 5.00E+01 Passy 1893b Benzoic Acid ND 2.80E+00 ND 2.80E+00 NA NA NA NA NA NA NA NA NA Nonanoic Acid (Pelargonic) ND 2.50E+00 ND 2.50E+00 NA NA NA NA NA 2.00E+01 Passy 1893b 2.02E-01 Washburn 1926

Shell Pond Bay Point-Jan_2012 Ambient Air Data.xlsx/T 16_CAS Carboxylic Acids 2/10/2012 ARCADIS Page 1 of 1 Table 17 January 25-26, 2012 Air Sampling: Aldehyde Complete Analytical Results Data Report, Preliminary Air Sampling and Analysis Shell Pond, Bay Point, California

Sample ID: SP-A-BAG-012512 Sample ID: SP-A-FB-Bag-012612 Highest Odor Threshold Lowest Odor Threshold ATSDR Minimal Intermediate CA Resources Detected Detected Inhalation Risk Screening Value Permissible Board: Ambient Concentration MRL Concentration MRL Levels (lower of CHHSL Exposure Limit Concord Data Data* Concentration Concentration Analyte (µg/m!) (µg/m!) (µg/m!) (µg/m!) (µg/m!) and RSL-µg/m!) (µg/m!) (ppb) (µg/m!) Source (µg/m!) Source (µg/m!) Source 2,5-Dimethylbenzaldehyde ND 1.00E+00 ND 1.00E+00 NA NA NA NA NA NA NA NA NA NA Acetaldehyde 5.60E+00 1.00E+00 2.20E+01 1.00E+00 NA 1.10E+00 4.50E+04 8.70E-01 9.01E-01 WOMS 3.78E+02 Odor Control 1.20E+01 Gofmekler 1967 Benzaldehyde ND 1.00E+00 ND 1.00E+00 NA NA NA NA NA NA 4.30E+03 Laing 1975 1.82E+02 3M Crotonaldehyde ND 1.00E+00 ND 1.00E+00 NA NA NA NA NA NA 1.51E+03 Guadagni 1963 3.44E+02 Journal of Applied Technology Formaldehyde ND 1.00E+00 1.90E+01 1.00E+00 3.69E+01 1.90E-01 9.21E+02 2.64E+00 1.60E+00 WOMS 1.23E+03 Odor Control 1.02E+03 Journal of Applied Technology Hexanaldehyde (Hexanal) 7.70E+00 1.00E+00 6.60E+01 5.00E+00 NA NA NA NA NA NA NA NA 3.90E+01 Teranishi 1974 Isovaleraldehyde 4.90E+00 1.00E+00 ND 1.00E+00 NA NA NA NA NA NA NA NA 5.28E-01 Guadagni 1963 m,p-Tolualdehyde ND 1.00E+00 ND 1.00E+00 NA NA NA NA NA NA NA NA NA NA n-Butyraldehyde (Butanal) 2.10E+00 1.00E+00 5.10E+00 1.00E+00 NA NA NA NA NA NA 1.15E+02 Odor Control 1.30E+01 Hellman 1974 o-Tolualdehyde ND 1.00E+00 ND 1.00E+00 NA NA NA NA NA NA NA NA NA NA Propionaldehyde (Propanal) 1.10E+00 1.00E+00 2.00E+00 1.00E+00 NA 8.30E+00 NA NA NA NA 3.44E+02 3M 2.00E+01 Hellman 1974 Valeraldehyde (Pentanal) 3.40E+00 1.00E+00 2.60E+01 1.00E+00 NA NA 1.75E+05 NA NA NA 9.86E+01 Journal of Applied Technology 9.00E+00 Backman 1917

Shell Pond Bay Point-Jan_2012 Ambient Air Data.xlsx/T 17_CAS Aldehydes Results 2/10/2012 ARCADIS Page 1 of 1 1/20/2012 Ms. Katie Wynne Arcadis U.S., Inc. 950 Glenn Drive Suite 125 Folsom CA 95630

Project Name: Shell Pond Project #: B0092353.0003.0001d Workorder #: 1201330A

Dear Ms. Katie Wynne

The following report includes the data for the above referenced project for sample(s) received on 1/20/2012 at Air Toxics Ltd.

The data and associated QC analyzed by Modified TO-15 are compliant with the project requirements or laboratory criteria with the exception of the deviations noted in the attached case narrative. Thank you for choosing Air Toxics Ltd. for your air analysis needs. Air Toxics Ltd. is committed to providing accurate data of the highest quality. Please feel free to contact the Project Manager: Kyle Vagadori at 916-985-1000 if you have any questions regarding the data in this report.

Regards,

Kyle Vagadori Project Manager

180 BLUE RAVINE ROAD, SUITE B FOLSOM, CA - 95630 (916) 985-1000 .FAX (916) 985-1020 Hours 6:30 A.M to 5:30 PST Page 1 of 21 WORK ORDER #: 1201330A

Work Order Summary

RECEIPT FINAL FRACTION # NAME TEST VAC./PRES. PRESSURE 01A SP-A-UP-011912 Modified TO-15 5.8 "Hg 5 psi 02A SP-A-DOWN-011912 Modified TO-15 5.4 "Hg 5 psi 03A SP-A-FENCE-011912 Modified TO-15 7.0 "Hg 5 psi 04A TB-011912 Modified TO-15 28.6 "Hg 5 psi 05A Lab Blank Modified TO-15 NA NA 06A CCV Modified TO-15 NA NA 07A LCS Modified TO-15 NA NA 07AA LCSD Modified TO-15 NA NA

CERTIFIED BY: DATE: 01/20/12 Laboratory Director Certfication numbers: AZ Licensure AZ0719, CA NELAP - 02110CA, LA NELAP - 02089, NY NELAP - 11291, TX NELAP - T104704434-11-3, UT NELAP -CA009332011-1, WA NELAP - C935 Name of Accrediting Agency: NELAP/Florida Department of Health, Scope of Application: Clean Air Act, Accreditation number: E87680, Effective date: 07/01/11 , Expiration date: 06/30/12. Air Toxics Ltd. certifies that the test results contained in this report meet all requirements of the NELAC standards This report shall not be reproduced, except in full, without the written approval of Air Toxics Ltd. 180 BLUE RAVINE ROAD, SUITE B FOLSOM, CA - 95630 (916) 985-1000 . (800) 985-5955 . FAX (916) 985-1020 Page 2 of 21 LABORATORY NARRATIVE EPA Method TO-15 Arcadis U.S., Inc. Workorder# 1201330A

Four 6 Liter Summa Canister samples were received on January 20, 2012. The laboratory performed analysis via EPA Method TO-15 using GC/MS in the full scan mode.

This workorder was independently validated prior to submittal using 'USEPA National Functional Guidelines' as generally applied to the analysis of volatile organic compounds in air. A rules-based, logic driven, independent validation engine was employed to assess completeness, evaluate pass/fail of relevant project quality control requirements and verification of all quantified amounts.

Receiving Notes The Chain of Custody (COC) information for sample SP-A-UP-011912 did not match the information on the canister with regard to canister identification. The client was notified of the discrepancy and the information on the canister was used to process and report the sample.

Analytical Notes The reported CCV for each daily batch may be derived from more than one analytical file due to the client's request for non-standard compounds.

Non-standard compounds may have different acceptance criteria than the standard TO-14A/TO-15 compound list as per contract or verbal agreement.

All Quality Control Limit exceedances and affected sample results are noted by flags. Each flag is defined at the bottom of this Case Narrative and on each Sample Result Summary page.

Definition of Data Qualifying Flags Eight qualifiers may have been used on the data analysis sheets and indicates as follows: B - Compound present in laboratory blank greater than reporting limit (background subtraction not performed). J - Estimated value. E - Exceeds instrument calibration range. S - Saturated peak. Q - Exceeds quality control limits. U - Compound analyzed for but not detected above the reporting limit. UJ- Non-detected compound associated with low bias in the CCV and/or LCS. N - The identification is based on presumptive evidence.

File extensions may have been used on the data analysis sheets and indicates as follows: a-File was requantified

Page 3 of 21 b-File was quantified by a second column and detector r1-File was requantified for the purpose of reissue

Page 4 of 21 Summary of Detected Compounds EPA METHOD TO-15 GC/MS FULL SCAN

Client Sample ID: SP-A-UP-011912 Lab ID#: 1201330A-01A Rpt. Limit Amount Rpt. Limit Amount Compound (ppbv) (ppbv) (ug/m3) (ug/m3) Ethanol 3.3 7.7 6.2 14

Client Sample ID: SP-A-DOWN-011912 Lab ID#: 1201330A-02A Rpt. Limit Amount Rpt. Limit Amount Compound (ppbv) (ppbv) (ug/m3) (ug/m3) Ethanol 3.3 8.4 6.1 16

Client Sample ID: SP-A-FENCE-011912 Lab ID#: 1201330A-03A Rpt. Limit Amount Rpt. Limit Amount Compound (ppbv) (ppbv) (ug/m3) (ug/m3) Ethanol 3.5 8.6 6.6 16 Acetone 3.5 7.6 8.3 18

Client Sample ID: TB-011912 Lab ID#: 1201330A-04A No Detections Were Found.

Page 5 of 21 Client Sample ID: SP-A-UP-011912 Lab ID#: 1201330A-01A EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p012014 Date of Collection: 1/19/12 4:47:00 PM Dil. Factor: 1.66 Date of Analysis: 1/20/12 03:18 PM Rpt. Limit Amount Rpt. Limit Amount Compound (ppbv) (ppbv) (ug/m3) (ug/m3) Freon 12 0.83 Not Detected 4.1 Not Detected Freon 114 0.83 Not Detected 5.8 Not Detected Chloromethane 3.3 Not Detected 6.8 Not Detected Vinyl Chloride 0.83 Not Detected 2.1 Not Detected 1,3-Butadiene 0.83 Not Detected 1.8 Not Detected Bromomethane 0.83 Not Detected 3.2 Not Detected Chloroethane 3.3 Not Detected 8.8 Not Detected Freon 11 0.83 Not Detected 4.7 Not Detected Ethanol 3.3 7.7 6.2 14 Freon 113 0.83 Not Detected 6.4 Not Detected 1,1-Dichloroethene 0.83 Not Detected 3.3 Not Detected Acetone 3.3 Not Detected 7.9 Not Detected 2-Propanol 3.3 Not Detected 8.2 Not Detected Carbon Disulfide 3.3 Not Detected 10 Not Detected 3-Chloropropene 3.3 Not Detected 10 Not Detected Methylene Chloride 0.83 Not Detected 2.9 Not Detected Methyl tert-butyl ether 0.83 Not Detected 3.0 Not Detected trans-1,2-Dichloroethene 0.83 Not Detected 3.3 Not Detected Hexane 0.83 Not Detected 2.9 Not Detected 1,1-Dichloroethane 0.83 Not Detected 3.4 Not Detected 2-Butanone (Methyl Ethyl Ketone) 3.3 Not Detected 9.8 Not Detected cis-1,2-Dichloroethene 0.83 Not Detected 3.3 Not Detected Tetrahydrofuran 0.83 Not Detected 2.4 Not Detected Chloroform 0.83 Not Detected 4.0 Not Detected 1,1,1-Trichloroethane 0.83 Not Detected 4.5 Not Detected Cyclohexane 0.83 Not Detected 2.8 Not Detected Carbon Tetrachloride 0.83 Not Detected 5.2 Not Detected 2,2,4-Trimethylpentane 0.83 Not Detected 3.9 Not Detected Benzene 0.83 Not Detected 2.6 Not Detected 1,2-Dichloroethane 0.83 Not Detected 3.4 Not Detected Heptane 0.83 Not Detected 3.4 Not Detected Trichloroethene 0.83 Not Detected 4.5 Not Detected 1,2-Dichloropropane 0.83 Not Detected 3.8 Not Detected 1,4-Dioxane 3.3 Not Detected 12 Not Detected Bromodichloromethane 0.83 Not Detected 5.6 Not Detected cis-1,3-Dichloropropene 0.83 Not Detected 3.8 Not Detected 4-Methyl-2-pentanone 0.83 Not Detected 3.4 Not Detected Toluene 0.83 Not Detected 3.1 Not Detected trans-1,3-Dichloropropene 0.83 Not Detected 3.8 Not Detected 1,1,2-Trichloroethane 0.83 Not Detected 4.5 Not Detected Tetrachloroethene 0.83 Not Detected 5.6 Not Detected

Page 6 of 21 Client Sample ID: SP-A-UP-011912 Lab ID#: 1201330A-01A EPA METHOD TO-15 GC/MS FULL SCAN

Container Type: 6 Liter Summa Canister Method Surrogates %Recovery Limits Toluene-d8 90 70-130 1,2-Dichloroethane-d4 109 70-130 4-Bromofluorobenzene 102 70-130

Page 7 of 21 Client Sample ID: SP-A-DOWN-011912 Lab ID#: 1201330A-02A EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p012016 Date of Collection: 1/19/12 5:10:00 PM Dil. Factor: 1.63 Date of Analysis: 1/20/12 04:07 PM Rpt. Limit Amount Rpt. Limit Amount Compound (ppbv) (ppbv) (ug/m3) (ug/m3) Freon 12 0.82 Not Detected 4.0 Not Detected Freon 114 0.82 Not Detected 5.7 Not Detected Chloromethane 3.3 Not Detected 6.7 Not Detected Vinyl Chloride 0.82 Not Detected 2.1 Not Detected 1,3-Butadiene 0.82 Not Detected 1.8 Not Detected Bromomethane 0.82 Not Detected 3.2 Not Detected Chloroethane 3.3 Not Detected 8.6 Not Detected Freon 11 0.82 Not Detected 4.6 Not Detected Ethanol 3.3 8.4 6.1 16 Freon 113 0.82 Not Detected 6.2 Not Detected 1,1-Dichloroethene 0.82 Not Detected 3.2 Not Detected Acetone 3.3 Not Detected 7.7 Not Detected 2-Propanol 3.3 Not Detected 8.0 Not Detected Carbon Disulfide 3.3 Not Detected 10 Not Detected 3-Chloropropene 3.3 Not Detected 10 Not Detected Methylene Chloride 0.82 Not Detected 2.8 Not Detected Methyl tert-butyl ether 0.82 Not Detected 2.9 Not Detected trans-1,2-Dichloroethene 0.82 Not Detected 3.2 Not Detected Hexane 0.82 Not Detected 2.9 Not Detected 1,1-Dichloroethane 0.82 Not Detected 3.3 Not Detected 2-Butanone (Methyl Ethyl Ketone) 3.3 Not Detected 9.6 Not Detected cis-1,2-Dichloroethene 0.82 Not Detected 3.2 Not Detected Tetrahydrofuran 0.82 Not Detected 2.4 Not Detected Chloroform 0.82 Not Detected 4.0 Not Detected 1,1,1-Trichloroethane 0.82 Not Detected 4.4 Not Detected Cyclohexane 0.82 Not Detected 2.8 Not Detected Carbon Tetrachloride 0.82 Not Detected 5.1 Not Detected 2,2,4-Trimethylpentane 0.82 Not Detected 3.8 Not Detected Benzene 0.82 Not Detected 2.6 Not Detected 1,2-Dichloroethane 0.82 Not Detected 3.3 Not Detected Heptane 0.82 Not Detected 3.3 Not Detected Trichloroethene 0.82 Not Detected 4.4 Not Detected 1,2-Dichloropropane 0.82 Not Detected 3.8 Not Detected 1,4-Dioxane 3.3 Not Detected 12 Not Detected Bromodichloromethane 0.82 Not Detected 5.5 Not Detected cis-1,3-Dichloropropene 0.82 Not Detected 3.7 Not Detected 4-Methyl-2-pentanone 0.82 Not Detected 3.3 Not Detected Toluene 0.82 Not Detected 3.1 Not Detected trans-1,3-Dichloropropene 0.82 Not Detected 3.7 Not Detected 1,1,2-Trichloroethane 0.82 Not Detected 4.4 Not Detected Tetrachloroethene 0.82 Not Detected 5.5 Not Detected

Page 8 of 21 Client Sample ID: SP-A-DOWN-011912 Lab ID#: 1201330A-02A EPA METHOD TO-15 GC/MS FULL SCAN

Container Type: 6 Liter Summa Canister Method Surrogates %Recovery Limits Toluene-d8 91 70-130 1,2-Dichloroethane-d4 118 70-130 4-Bromofluorobenzene 103 70-130

Page 9 of 21 Client Sample ID: SP-A-FENCE-011912 Lab ID#: 1201330A-03A EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p012019 Date of Collection: 1/19/12 4:47:00 PM Dil. Factor: 1.75 Date of Analysis: 1/20/12 05:23 PM Rpt. Limit Amount Rpt. Limit Amount Compound (ppbv) (ppbv) (ug/m3) (ug/m3) Freon 12 0.88 Not Detected 4.3 Not Detected Freon 114 0.88 Not Detected 6.1 Not Detected Chloromethane 3.5 Not Detected 7.2 Not Detected Vinyl Chloride 0.88 Not Detected 2.2 Not Detected 1,3-Butadiene 0.88 Not Detected 1.9 Not Detected Bromomethane 0.88 Not Detected 3.4 Not Detected Chloroethane 3.5 Not Detected 9.2 Not Detected Freon 11 0.88 Not Detected 4.9 Not Detected Ethanol 3.5 8.6 6.6 16 Freon 113 0.88 Not Detected 6.7 Not Detected 1,1-Dichloroethene 0.88 Not Detected 3.5 Not Detected Acetone 3.5 7.6 8.3 18 2-Propanol 3.5 Not Detected 8.6 Not Detected Carbon Disulfide 3.5 Not Detected 11 Not Detected 3-Chloropropene 3.5 Not Detected 11 Not Detected Methylene Chloride 0.88 Not Detected 3.0 Not Detected Methyl tert-butyl ether 0.88 Not Detected 3.2 Not Detected trans-1,2-Dichloroethene 0.88 Not Detected 3.5 Not Detected Hexane 0.88 Not Detected 3.1 Not Detected 1,1-Dichloroethane 0.88 Not Detected 3.5 Not Detected 2-Butanone (Methyl Ethyl Ketone) 3.5 Not Detected 10 Not Detected cis-1,2-Dichloroethene 0.88 Not Detected 3.5 Not Detected Tetrahydrofuran 0.88 Not Detected 2.6 Not Detected Chloroform 0.88 Not Detected 4.3 Not Detected 1,1,1-Trichloroethane 0.88 Not Detected 4.8 Not Detected Cyclohexane 0.88 Not Detected 3.0 Not Detected Carbon Tetrachloride 0.88 Not Detected 5.5 Not Detected 2,2,4-Trimethylpentane 0.88 Not Detected 4.1 Not Detected Benzene 0.88 Not Detected 2.8 Not Detected 1,2-Dichloroethane 0.88 Not Detected 3.5 Not Detected Heptane 0.88 Not Detected 3.6 Not Detected Trichloroethene 0.88 Not Detected 4.7 Not Detected 1,2-Dichloropropane 0.88 Not Detected 4.0 Not Detected 1,4-Dioxane 3.5 Not Detected 13 Not Detected Bromodichloromethane 0.88 Not Detected 5.9 Not Detected cis-1,3-Dichloropropene 0.88 Not Detected 4.0 Not Detected 4-Methyl-2-pentanone 0.88 Not Detected 3.6 Not Detected Toluene 0.88 Not Detected 3.3 Not Detected trans-1,3-Dichloropropene 0.88 Not Detected 4.0 Not Detected 1,1,2-Trichloroethane 0.88 Not Detected 4.8 Not Detected Tetrachloroethene 0.88 Not Detected 5.9 Not Detected

Page 10 of 21 Client Sample ID: SP-A-FENCE-011912 Lab ID#: 1201330A-03A EPA METHOD TO-15 GC/MS FULL SCAN

Container Type: 6 Liter Summa Canister Method Surrogates %Recovery Limits Toluene-d8 100 70-130 1,2-Dichloroethane-d4 123 70-130 4-Bromofluorobenzene 101 70-130

Page 11 of 21 Client Sample ID: TB-011912 Lab ID#: 1201330A-04A EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p012015 Date of Collection: 1/19/12 Dil. Factor: 1.00 Date of Analysis: 1/20/12 03:50 PM Rpt. Limit Amount Rpt. Limit Amount Compound (ppbv) (ppbv) (ug/m3) (ug/m3) Freon 12 0.50 Not Detected 2.5 Not Detected Freon 114 0.50 Not Detected 3.5 Not Detected Chloromethane 2.0 Not Detected 4.1 Not Detected Vinyl Chloride 0.50 Not Detected 1.3 Not Detected 1,3-Butadiene 0.50 Not Detected 1.1 Not Detected Bromomethane 0.50 Not Detected 1.9 Not Detected Chloroethane 2.0 Not Detected 5.3 Not Detected Freon 11 0.50 Not Detected 2.8 Not Detected Ethanol 2.0 Not Detected 3.8 Not Detected Freon 113 0.50 Not Detected 3.8 Not Detected 1,1-Dichloroethene 0.50 Not Detected 2.0 Not Detected Acetone 2.0 Not Detected 4.8 Not Detected 2-Propanol 2.0 Not Detected 4.9 Not Detected Carbon Disulfide 2.0 Not Detected 6.2 Not Detected 3-Chloropropene 2.0 Not Detected 6.3 Not Detected Methylene Chloride 0.50 Not Detected 1.7 Not Detected Methyl tert-butyl ether 0.50 Not Detected 1.8 Not Detected trans-1,2-Dichloroethene 0.50 Not Detected 2.0 Not Detected Hexane 0.50 Not Detected 1.8 Not Detected 1,1-Dichloroethane 0.50 Not Detected 2.0 Not Detected 2-Butanone (Methyl Ethyl Ketone) 2.0 Not Detected 5.9 Not Detected cis-1,2-Dichloroethene 0.50 Not Detected 2.0 Not Detected Tetrahydrofuran 0.50 Not Detected 1.5 Not Detected Chloroform 0.50 Not Detected 2.4 Not Detected 1,1,1-Trichloroethane 0.50 Not Detected 2.7 Not Detected Cyclohexane 0.50 Not Detected 1.7 Not Detected Carbon Tetrachloride 0.50 Not Detected 3.1 Not Detected 2,2,4-Trimethylpentane 0.50 Not Detected 2.3 Not Detected Benzene 0.50 Not Detected 1.6 Not Detected 1,2-Dichloroethane 0.50 Not Detected 2.0 Not Detected Heptane 0.50 Not Detected 2.0 Not Detected Trichloroethene 0.50 Not Detected 2.7 Not Detected 1,2-Dichloropropane 0.50 Not Detected 2.3 Not Detected 1,4-Dioxane 2.0 Not Detected 7.2 Not Detected Bromodichloromethane 0.50 Not Detected 3.4 Not Detected cis-1,3-Dichloropropene 0.50 Not Detected 2.3 Not Detected 4-Methyl-2-pentanone 0.50 Not Detected 2.0 Not Detected Toluene 0.50 Not Detected 1.9 Not Detected trans-1,3-Dichloropropene 0.50 Not Detected 2.3 Not Detected 1,1,2-Trichloroethane 0.50 Not Detected 2.7 Not Detected Tetrachloroethene 0.50 Not Detected 3.4 Not Detected

Page 12 of 21 Client Sample ID: TB-011912 Lab ID#: 1201330A-04A EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p012015 Date of Collection: 1/19/12 Dil. Factor: 1.00 Date of Analysis: 1/20/12 03:50 PM Rpt. Limit Amount Rpt. Limit Amount Compound (ppbv) (ppbv) (ug/m3) (ug/m3) 2-Hexanone 2.0 Not Detected 8.2 Not Detected Dibromochloromethane 0.50 Not Detected 4.2 Not Detected 1,2-Dibromoethane (EDB) 0.50 Not Detected 3.8 Not Detected Chlorobenzene 0.50 Not Detected 2.3 Not Detected Ethyl Benzene 0.50 Not Detected 2.2 Not Detected m,p-Xylene 0.50 Not Detected 2.2 Not Detected o-Xylene 0.50 Not Detected 2.2 Not Detected Styrene 0.50 Not Detected 2.1 Not Detected Bromoform 0.50 Not Detected 5.2 Not Detected Cumene 0.50 Not Detected 2.4 Not Detected 1,1,2,2-Tetrachloroethane 0.50 Not Detected 3.4 Not Detected Propylbenzene 0.50 Not Detected 2.4 Not Detected 4-Ethyltoluene 0.50 Not Detected 2.4 Not Detected 1,3,5-Trimethylbenzene 0.50 Not Detected 2.4 Not Detected 1,2,4-Trimethylbenzene 0.50 Not Detected 2.4 Not Detected 1,3-Dichlorobenzene 0.50 Not Detected 3.0 Not Detected 1,4-Dichlorobenzene 0.50 Not Detected 3.0 Not Detected alpha-Chlorotoluene 0.50 Not Detected 2.6 Not Detected 1,2-Dichlorobenzene 0.50 Not Detected 3.0 Not Detected 1,2,4-Trichlorobenzene 2.0 Not Detected 15 Not Detected Hexachlorobutadiene 2.0 Not Detected 21 Not Detected Acrolein 2.0 Not Detected 4.6 Not Detected Naphthalene 2.0 Not Detected 10 Not Detected

Container Type: 6 Liter Summa Canister Method Surrogates %Recovery Limits Toluene-d8 102 70-130 1,2-Dichloroethane-d4 119 70-130 4-Bromofluorobenzene 109 70-130

Page 13 of 21 Client Sample ID: Lab Blank Lab ID#: 1201330A-05A EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p012010 Date of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/20/12 12:28 PM Rpt. Limit Amount Rpt. Limit Amount Compound (ppbv) (ppbv) (ug/m3) (ug/m3) Freon 12 0.50 Not Detected 2.5 Not Detected Freon 114 0.50 Not Detected 3.5 Not Detected Chloromethane 2.0 Not Detected 4.1 Not Detected Vinyl Chloride 0.50 Not Detected 1.3 Not Detected 1,3-Butadiene 0.50 Not Detected 1.1 Not Detected Bromomethane 0.50 Not Detected 1.9 Not Detected Chloroethane 2.0 Not Detected 5.3 Not Detected Freon 11 0.50 Not Detected 2.8 Not Detected Ethanol 2.0 Not Detected 3.8 Not Detected Freon 113 0.50 Not Detected 3.8 Not Detected 1,1-Dichloroethene 0.50 Not Detected 2.0 Not Detected Acetone 2.0 Not Detected 4.8 Not Detected 2-Propanol 2.0 Not Detected 4.9 Not Detected Carbon Disulfide 2.0 Not Detected 6.2 Not Detected 3-Chloropropene 2.0 Not Detected 6.3 Not Detected Methylene Chloride 0.50 Not Detected 1.7 Not Detected Methyl tert-butyl ether 0.50 Not Detected 1.8 Not Detected trans-1,2-Dichloroethene 0.50 Not Detected 2.0 Not Detected Hexane 0.50 Not Detected 1.8 Not Detected 1,1-Dichloroethane 0.50 Not Detected 2.0 Not Detected 2-Butanone (Methyl Ethyl Ketone) 2.0 Not Detected 5.9 Not Detected cis-1,2-Dichloroethene 0.50 Not Detected 2.0 Not Detected Tetrahydrofuran 0.50 Not Detected 1.5 Not Detected Chloroform 0.50 Not Detected 2.4 Not Detected 1,1,1-Trichloroethane 0.50 Not Detected 2.7 Not Detected Cyclohexane 0.50 Not Detected 1.7 Not Detected Carbon Tetrachloride 0.50 Not Detected 3.1 Not Detected 2,2,4-Trimethylpentane 0.50 Not Detected 2.3 Not Detected Benzene 0.50 Not Detected 1.6 Not Detected 1,2-Dichloroethane 0.50 Not Detected 2.0 Not Detected Heptane 0.50 Not Detected 2.0 Not Detected Trichloroethene 0.50 Not Detected 2.7 Not Detected 1,2-Dichloropropane 0.50 Not Detected 2.3 Not Detected 1,4-Dioxane 2.0 Not Detected 7.2 Not Detected Bromodichloromethane 0.50 Not Detected 3.4 Not Detected cis-1,3-Dichloropropene 0.50 Not Detected 2.3 Not Detected 4-Methyl-2-pentanone 0.50 Not Detected 2.0 Not Detected Toluene 0.50 Not Detected 1.9 Not Detected trans-1,3-Dichloropropene 0.50 Not Detected 2.3 Not Detected 1,1,2-Trichloroethane 0.50 Not Detected 2.7 Not Detected Tetrachloroethene 0.50 Not Detected 3.4 Not Detected

Page 14 of 21 Client Sample ID: Lab Blank Lab ID#: 1201330A-05A EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p012010 Date of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/20/12 12:28 PM Rpt. Limit Amount Rpt. Limit Amount Compound (ppbv) (ppbv) (ug/m3) (ug/m3) 2-Hexanone 2.0 Not Detected 8.2 Not Detected Dibromochloromethane 0.50 Not Detected 4.2 Not Detected 1,2-Dibromoethane (EDB) 0.50 Not Detected 3.8 Not Detected Chlorobenzene 0.50 Not Detected 2.3 Not Detected Ethyl Benzene 0.50 Not Detected 2.2 Not Detected m,p-Xylene 0.50 Not Detected 2.2 Not Detected o-Xylene 0.50 Not Detected 2.2 Not Detected Styrene 0.50 Not Detected 2.1 Not Detected Bromoform 0.50 Not Detected 5.2 Not Detected Cumene 0.50 Not Detected 2.4 Not Detected 1,1,2,2-Tetrachloroethane 0.50 Not Detected 3.4 Not Detected Propylbenzene 0.50 Not Detected 2.4 Not Detected 4-Ethyltoluene 0.50 Not Detected 2.4 Not Detected 1,3,5-Trimethylbenzene 0.50 Not Detected 2.4 Not Detected 1,2,4-Trimethylbenzene 0.50 Not Detected 2.4 Not Detected 1,3-Dichlorobenzene 0.50 Not Detected 3.0 Not Detected 1,4-Dichlorobenzene 0.50 Not Detected 3.0 Not Detected alpha-Chlorotoluene 0.50 Not Detected 2.6 Not Detected 1,2-Dichlorobenzene 0.50 Not Detected 3.0 Not Detected 1,2,4-Trichlorobenzene 2.0 Not Detected 15 Not Detected Hexachlorobutadiene 2.0 Not Detected 21 Not Detected Acrolein 2.0 Not Detected 4.6 Not Detected Naphthalene 2.0 Not Detected 10 Not Detected

Container Type: NA - Not Applicable Method Surrogates %Recovery Limits Toluene-d8 101 70-130 1,2-Dichloroethane-d4 120 70-130 4-Bromofluorobenzene 97 70-130

Page 15 of 21 Client Sample ID: CCV Lab ID#: 1201330A-06A EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p012005 Date of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/20/12 10:21 AM

Compound %Recovery Freon 12 127 Freon 114 109 Chloromethane 122 Vinyl Chloride 101 1,3-Butadiene 105 Bromomethane 105 Chloroethane 99 Freon 11 131 Q Ethanol 129 Freon 113 110 1,1-Dichloroethene 108 Acetone 100 2-Propanol 117 Carbon Disulfide 97 3-Chloropropene 99 Methylene Chloride 109 Methyl tert-butyl ether 124 trans-1,2-Dichloroethene 98 Hexane 112 1,1-Dichloroethane 112 2-Butanone (Methyl Ethyl Ketone) 102 cis-1,2-Dichloroethene 97 Tetrahydrofuran 114 Chloroform 116 1,1,1-Trichloroethane 124 Cyclohexane 104 Carbon Tetrachloride 127 2,2,4-Trimethylpentane 114 Benzene 98 1,2-Dichloroethane 124 Heptane 105 Trichloroethene 101 1,2-Dichloropropane 99 1,4-Dioxane 108 Bromodichloromethane 113 cis-1,3-Dichloropropene 106 4-Methyl-2-pentanone 123 Toluene 103 trans-1,3-Dichloropropene 106 1,1,2-Trichloroethane 101 Tetrachloroethene 102

Page 16 of 21 Client Sample ID: CCV Lab ID#: 1201330A-06A EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p012005 Date of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/20/12 10:21 AM

Compound %Recovery 2-Hexanone 118 Dibromochloromethane 113 1,2-Dibromoethane (EDB) 106 Chlorobenzene 103 Ethyl Benzene 110 m,p-Xylene 115 o-Xylene 113 Styrene 113 Bromoform 118 Cumene 117 1,1,2,2-Tetrachloroethane 111 Propylbenzene 117 4-Ethyltoluene 119 1,3,5-Trimethylbenzene 111 1,2,4-Trimethylbenzene 116 1,3-Dichlorobenzene 113 1,4-Dichlorobenzene 115 alpha-Chlorotoluene 123 1,2-Dichlorobenzene 119 1,2,4-Trichlorobenzene 124 Hexachlorobutadiene 130 Acrolein 100 Naphthalene 118

Q = Exceeds Quality Control limits. Container Type: NA - Not Applicable Method Surrogates %Recovery Limits Toluene-d8 104 70-130 1,2-Dichloroethane-d4 124 70-130 4-Bromofluorobenzene 103 70-130

Page 17 of 21 Client Sample ID: LCS Lab ID#: 1201330A-07A EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p012007 Date of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/20/12 11:08 AM

Compound %Recovery Freon 12 123 Freon 114 109 Chloromethane 126 Vinyl Chloride 106 1,3-Butadiene 106 Bromomethane 104 Chloroethane 102 Freon 11 127 Ethanol 101 Freon 113 111 1,1-Dichloroethene 115 Acetone 103 2-Propanol 121 Carbon Disulfide 122 3-Chloropropene 114 Methylene Chloride 109 Methyl tert-butyl ether 122 trans-1,2-Dichloroethene 109 Hexane 109 1,1-Dichloroethane 98 2-Butanone (Methyl Ethyl Ketone) 92 cis-1,2-Dichloroethene 87 Tetrahydrofuran 106 Chloroform 114 1,1,1-Trichloroethane 124 Cyclohexane 104 Carbon Tetrachloride 126 2,2,4-Trimethylpentane 108 Benzene 96 1,2-Dichloroethane 123 Heptane 100 Trichloroethene 99 1,2-Dichloropropane 98 1,4-Dioxane 102 Bromodichloromethane 110 cis-1,3-Dichloropropene 104 4-Methyl-2-pentanone 112 Toluene 99 trans-1,3-Dichloropropene 102 1,1,2-Trichloroethane 93 Tetrachloroethene 97

Page 18 of 21 Client Sample ID: LCS Lab ID#: 1201330A-07A EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p012007 Date of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/20/12 11:08 AM

Compound %Recovery 2-Hexanone 112 Dibromochloromethane 107 1,2-Dibromoethane (EDB) 104 Chlorobenzene 99 Ethyl Benzene 105 m,p-Xylene 108 o-Xylene 107 Styrene 111 Bromoform 109 Cumene 113 1,1,2,2-Tetrachloroethane 106 Propylbenzene 107 4-Ethyltoluene 104 1,3,5-Trimethylbenzene 100 1,2,4-Trimethylbenzene 107 1,3-Dichlorobenzene 108 1,4-Dichlorobenzene 107 alpha-Chlorotoluene 118 1,2-Dichlorobenzene 114 1,2,4-Trichlorobenzene 115 Hexachlorobutadiene 118 Acrolein Not Spiked Naphthalene 115

Container Type: NA - Not Applicable Method Surrogates %Recovery Limits Toluene-d8 104 70-130 1,2-Dichloroethane-d4 126 70-130 4-Bromofluorobenzene 105 70-130

Page 19 of 21 Client Sample ID: LCSD Lab ID#: 1201330A-07AA EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p012008 Date of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/20/12 11:25 AM

Compound %Recovery Freon 12 116 Freon 114 104 Chloromethane 118 Vinyl Chloride 100 1,3-Butadiene 100 Bromomethane 101 Chloroethane 97 Freon 11 119 Ethanol 100 Freon 113 105 1,1-Dichloroethene 104 Acetone 97 2-Propanol 112 Carbon Disulfide 115 3-Chloropropene 107 Methylene Chloride 104 Methyl tert-butyl ether 116 trans-1,2-Dichloroethene 106 Hexane 103 1,1-Dichloroethane 104 2-Butanone (Methyl Ethyl Ketone) 97 cis-1,2-Dichloroethene 91 Tetrahydrofuran 100 Chloroform 109 1,1,1-Trichloroethane 114 Cyclohexane 97 Carbon Tetrachloride 118 2,2,4-Trimethylpentane 102 Benzene 97 1,2-Dichloroethane 124 Heptane 102 Trichloroethene 97 1,2-Dichloropropane 93 1,4-Dioxane 86 Bromodichloromethane 103 cis-1,3-Dichloropropene 100 4-Methyl-2-pentanone 112 Toluene 97 trans-1,3-Dichloropropene 98 1,1,2-Trichloroethane 86 Tetrachloroethene 88

Page 20 of 21 Client Sample ID: LCSD Lab ID#: 1201330A-07AA EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p012008 Date of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/20/12 11:25 AM

Compound %Recovery 2-Hexanone 110 Dibromochloromethane 108 1,2-Dibromoethane (EDB) 102 Chlorobenzene 100 Ethyl Benzene 100 m,p-Xylene 113 o-Xylene 99 Styrene 104 Bromoform 107 Cumene 106 1,1,2,2-Tetrachloroethane 97 Propylbenzene 105 4-Ethyltoluene 102 1,3,5-Trimethylbenzene 101 1,2,4-Trimethylbenzene 104 1,3-Dichlorobenzene 105 1,4-Dichlorobenzene 107 alpha-Chlorotoluene 116 1,2-Dichlorobenzene 112 1,2,4-Trichlorobenzene 120 Hexachlorobutadiene 120 Acrolein Not Spiked Naphthalene 125

Container Type: NA - Not Applicable Method Surrogates %Recovery Limits Toluene-d8 95 70-130 1,2-Dichloroethane-d4 119 70-130 4-Bromofluorobenzene 102 70-130

Page 21 of 21 1/23/2012 Ms. Katie Wynne Arcadis U.S., Inc. 950 Glenn Drive Suite 125 Folsom CA 95630

Project Name: Shell Pond Project #: B0092353.0003.0001d Workorder #: 1201330AR1

Dear Ms. Katie Wynne

The following report includes the data for the above referenced project for sample(s) received on 1/20/2012 at Air Toxics Ltd.

The data and associated QC analyzed by Modified TO-15/TICs are compliant with the project requirements or laboratory criteria with the exception of the deviations noted in the attached case narrative. Thank you for choosing Air Toxics Ltd. for your air analysis needs. Air Toxics Ltd. is committed to providing accurate data of the highest quality. Please feel free to contact the Project Manager: Kyle Vagadori at 916-985-1000 if you have any questions regarding the data in this report.

Regards,

Kyle Vagadori Project Manager

180 BLUE RAVINE ROAD, SUITE B FOLSOM, CA - 95630 (916) 985-1000 .FAX (916) 985-1020 Hours 6:30 A.M to 5:30 PST Page 1 of 21 WORK ORDER #: 1201330AR1

Work Order Summary

CLIENT: Ms. Katie Wynne BILL TO: Accounts Payable Arcadis U.S., Inc. Arcadis U.S., Inc. 950 Glenn Drive 630 Plaza Drive Suite 125 Suite 130 Folsom, CA 95630 Highlands Ranch, CO 80129 PHONE: 916-985-2079x33 P.O. # FAX: PROJECT # B0092353.0003.0001d Shell Pond DATE RECEIVED: 01/20/2012 CONTACT: Kyle Vagadori DATE COMPLETED: 01/20/2012 DATE REISSUED: 01/23/2012 RECEIPT FINAL FRACTION # NAME TEST VAC./PRES. PRESSURE 01A SP-A-UP-011912 Modified TO-15/TICs 5.8 "Hg 5 psi 02A SP-A-DOWN-011912 Modified TO-15/TICs 5.4 "Hg 5 psi 03A SP-A-FENCE-011912 Modified TO-15/TICs 7.0 "Hg 5 psi 04A TB-011912 Modified TO-15/TICs 28.6 "Hg 5 psi 05A Lab Blank Modified TO-15/TICs NA NA 06A CCV Modified TO-15/TICs NA NA 07A LCS Modified TO-15/TICs NA NA 07AA LCSD Modified TO-15/TICs NA NA

CERTIFIED BY: DATE: 01/23/12 Laboratory Director Certfication numbers: AZ Licensure AZ0719, CA NELAP - 02110CA, LA NELAP - 02089, NY NELAP - 11291, TX NELAP - T104704434-11-3, UT NELAP -CA009332011-1, WA NELAP - C935 Name of Accrediting Agency: NELAP/Florida Department of Health, Scope of Application: Clean Air Act, Accreditation number: E87680, Effective date: 07/01/11 , Expiration date: 06/30/12. Air Toxics Ltd. certifies that the test results contained in this report meet all requirements of the NELAC standards This report shall not be reproduced, except in full, without the written approval of Air Toxics Ltd. 180 BLUE RAVINE ROAD, SUITE B FOLSOM, CA - 95630 (916) 985-1000 . (800) 985-5955 . FAX (916) 985-1020 Page 2 of 21 LABORATORY NARRATIVE EPA Method TO-15 Arcadis U.S., Inc. Workorder# 1201330AR1

Four 6 Liter Summa Canister samples were received on January 20, 2012. The laboratory performed analysis via EPA Method TO-15 using GC/MS in the full scan mode.

Analytical Notes The reported CCV for each daily batch may be derived from more than one analytical file due to the client's request for non-standard compounds.

Non-standard compounds may have different acceptance criteria than the standard TO-14A/TO-15 compound list as per contract or verbal agreement.

All Quality Control Limit exceedances and affected sample results are noted by flags. Each flag is defined at the bottom of this Case Narrative and on each Sample Result Summary page.

THE WORKORDER WAS REISSUED ON JANUARY 23, 2012 TO REPORT TOP 10 TENTATIVELY IDENTIFIED COMPOUNDS PER CLIENT'S REQUEST.

Page 3 of 21 File extensions may have been used on the data analysis sheets and indicates as follows: a-File was requantified b-File was quantified by a second column and detector r1-File was requantified for the purpose of reissue

Page 4 of 21 Summary of Detected Compounds EPA METHOD TO-15 GC/MS FULL SCAN

Client Sample ID: SP-A-UP-011912 Lab ID#: 1201330AR1-01A Rpt. Limit Amount Rpt. Limit Amount Compound (ppbv) (ppbv) (ug/m3) (ug/m3) Ethanol 3.3 7.7 6.2 14

Client Sample ID: SP-A-DOWN-011912 Lab ID#: 1201330AR1-02A Rpt. Limit Amount Rpt. Limit Amount Compound (ppbv) (ppbv) (ug/m3) (ug/m3) Ethanol 3.3 8.4 6.1 16

Client Sample ID: SP-A-FENCE-011912 Lab ID#: 1201330AR1-03A Rpt. Limit Amount Rpt. Limit Amount Compound (ppbv) (ppbv) (ug/m3) (ug/m3) Ethanol 3.5 8.6 6.6 16 Acetone 3.5 7.6 8.3 18

Client Sample ID: TB-011912 Lab ID#: 1201330AR1-04A No Detections Were Found.

Page 5 of 21 Client Sample ID: SP-A-UP-011912 Lab ID#: 1201330AR1-01A EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p012014r1 Date of Collection: 1/19/12 4:47:00 PM Dil. Factor: 1.66 Date of Analysis: 1/20/12 03:18 PM Rpt. Limit Amount Rpt. Limit Amount Compound (ppbv) (ppbv) (ug/m3) (ug/m3) Freon 12 0.83 Not Detected 4.1 Not Detected Freon 114 0.83 Not Detected 5.8 Not Detected Chloromethane 3.3 Not Detected 6.8 Not Detected Vinyl Chloride 0.83 Not Detected 2.1 Not Detected 1,3-Butadiene 0.83 Not Detected 1.8 Not Detected Bromomethane 0.83 Not Detected 3.2 Not Detected Chloroethane 3.3 Not Detected 8.8 Not Detected Freon 11 0.83 Not Detected 4.7 Not Detected Ethanol 3.3 7.7 6.2 14 Freon 113 0.83 Not Detected 6.4 Not Detected 1,1-Dichloroethene 0.83 Not Detected 3.3 Not Detected Acetone 3.3 Not Detected 7.9 Not Detected 2-Propanol 3.3 Not Detected 8.2 Not Detected Carbon Disulfide 3.3 Not Detected 10 Not Detected 3-Chloropropene 3.3 Not Detected 10 Not Detected Methylene Chloride 0.83 Not Detected 2.9 Not Detected Methyl tert-butyl ether 0.83 Not Detected 3.0 Not Detected trans-1,2-Dichloroethene 0.83 Not Detected 3.3 Not Detected Hexane 0.83 Not Detected 2.9 Not Detected 1,1-Dichloroethane 0.83 Not Detected 3.4 Not Detected 2-Butanone (Methyl Ethyl Ketone) 3.3 Not Detected 9.8 Not Detected cis-1,2-Dichloroethene 0.83 Not Detected 3.3 Not Detected Tetrahydrofuran 0.83 Not Detected 2.4 Not Detected Chloroform 0.83 Not Detected 4.0 Not Detected 1,1,1-Trichloroethane 0.83 Not Detected 4.5 Not Detected Cyclohexane 0.83 Not Detected 2.8 Not Detected Carbon Tetrachloride 0.83 Not Detected 5.2 Not Detected 2,2,4-Trimethylpentane 0.83 Not Detected 3.9 Not Detected Benzene 0.83 Not Detected 2.6 Not Detected 1,2-Dichloroethane 0.83 Not Detected 3.4 Not Detected Heptane 0.83 Not Detected 3.4 Not Detected Trichloroethene 0.83 Not Detected 4.5 Not Detected 1,2-Dichloropropane 0.83 Not Detected 3.8 Not Detected 1,4-Dioxane 3.3 Not Detected 12 Not Detected Bromodichloromethane 0.83 Not Detected 5.6 Not Detected cis-1,3-Dichloropropene 0.83 Not Detected 3.8 Not Detected 4-Methyl-2-pentanone 0.83 Not Detected 3.4 Not Detected Toluene 0.83 Not Detected 3.1 Not Detected trans-1,3-Dichloropropene 0.83 Not Detected 3.8 Not Detected 1,1,2-Trichloroethane 0.83 Not Detected 4.5 Not Detected Tetrachloroethene 0.83 Not Detected 5.6 Not Detected

Page 6 of 21 Client Sample ID: SP-A-UP-011912 Lab ID#: 1201330AR1-01A EPA METHOD TO-15 GC/MS FULL SCAN

TENTATIVELY IDENTIFIED COMPOUNDS Amount Compound CAS Number Match Quality ((ppbv)) None Identified

Container Type: 6 Liter Summa Canister Method Surrogates %Recovery Limits Toluene-d8 90 70-130 1,2-Dichloroethane-d4 109 70-130 4-Bromofluorobenzene 102 70-130

Page 7 of 21 Client Sample ID: SP-A-DOWN-011912 Lab ID#: 1201330AR1-02A EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p012016r1 Date of Collection: 1/19/12 5:10:00 PM Dil. Factor: 1.63 Date of Analysis: 1/20/12 04:07 PM Rpt. Limit Amount Rpt. Limit Amount Compound (ppbv) (ppbv) (ug/m3) (ug/m3) Freon 12 0.82 Not Detected 4.0 Not Detected Freon 114 0.82 Not Detected 5.7 Not Detected Chloromethane 3.3 Not Detected 6.7 Not Detected Vinyl Chloride 0.82 Not Detected 2.1 Not Detected 1,3-Butadiene 0.82 Not Detected 1.8 Not Detected Bromomethane 0.82 Not Detected 3.2 Not Detected Chloroethane 3.3 Not Detected 8.6 Not Detected Freon 11 0.82 Not Detected 4.6 Not Detected Ethanol 3.3 8.4 6.1 16 Freon 113 0.82 Not Detected 6.2 Not Detected 1,1-Dichloroethene 0.82 Not Detected 3.2 Not Detected Acetone 3.3 Not Detected 7.7 Not Detected 2-Propanol 3.3 Not Detected 8.0 Not Detected Carbon Disulfide 3.3 Not Detected 10 Not Detected 3-Chloropropene 3.3 Not Detected 10 Not Detected Methylene Chloride 0.82 Not Detected 2.8 Not Detected Methyl tert-butyl ether 0.82 Not Detected 2.9 Not Detected trans-1,2-Dichloroethene 0.82 Not Detected 3.2 Not Detected Hexane 0.82 Not Detected 2.9 Not Detected 1,1-Dichloroethane 0.82 Not Detected 3.3 Not Detected 2-Butanone (Methyl Ethyl Ketone) 3.3 Not Detected 9.6 Not Detected cis-1,2-Dichloroethene 0.82 Not Detected 3.2 Not Detected Tetrahydrofuran 0.82 Not Detected 2.4 Not Detected Chloroform 0.82 Not Detected 4.0 Not Detected 1,1,1-Trichloroethane 0.82 Not Detected 4.4 Not Detected Cyclohexane 0.82 Not Detected 2.8 Not Detected Carbon Tetrachloride 0.82 Not Detected 5.1 Not Detected 2,2,4-Trimethylpentane 0.82 Not Detected 3.8 Not Detected Benzene 0.82 Not Detected 2.6 Not Detected 1,2-Dichloroethane 0.82 Not Detected 3.3 Not Detected Heptane 0.82 Not Detected 3.3 Not Detected Trichloroethene 0.82 Not Detected 4.4 Not Detected 1,2-Dichloropropane 0.82 Not Detected 3.8 Not Detected 1,4-Dioxane 3.3 Not Detected 12 Not Detected Bromodichloromethane 0.82 Not Detected 5.5 Not Detected cis-1,3-Dichloropropene 0.82 Not Detected 3.7 Not Detected 4-Methyl-2-pentanone 0.82 Not Detected 3.3 Not Detected Toluene 0.82 Not Detected 3.1 Not Detected trans-1,3-Dichloropropene 0.82 Not Detected 3.7 Not Detected 1,1,2-Trichloroethane 0.82 Not Detected 4.4 Not Detected Tetrachloroethene 0.82 Not Detected 5.5 Not Detected

Page 8 of 21 Client Sample ID: SP-A-DOWN-011912 Lab ID#: 1201330AR1-02A EPA METHOD TO-15 GC/MS FULL SCAN

TENTATIVELY IDENTIFIED COMPOUNDS Amount Compound CAS Number Match Quality ((ppbv)) None Identified

Container Type: 6 Liter Summa Canister Method Surrogates %Recovery Limits Toluene-d8 91 70-130 1,2-Dichloroethane-d4 118 70-130 4-Bromofluorobenzene 103 70-130

Page 9 of 21 Client Sample ID: SP-A-FENCE-011912 Lab ID#: 1201330AR1-03A EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p012019r1 Date of Collection: 1/19/12 4:47:00 PM Dil. Factor: 1.75 Date of Analysis: 1/20/12 05:23 PM Rpt. Limit Amount Rpt. Limit Amount Compound (ppbv) (ppbv) (ug/m3) (ug/m3) Freon 12 0.88 Not Detected 4.3 Not Detected Freon 114 0.88 Not Detected 6.1 Not Detected Chloromethane 3.5 Not Detected 7.2 Not Detected Vinyl Chloride 0.88 Not Detected 2.2 Not Detected 1,3-Butadiene 0.88 Not Detected 1.9 Not Detected Bromomethane 0.88 Not Detected 3.4 Not Detected Chloroethane 3.5 Not Detected 9.2 Not Detected Freon 11 0.88 Not Detected 4.9 Not Detected Ethanol 3.5 8.6 6.6 16 Freon 113 0.88 Not Detected 6.7 Not Detected 1,1-Dichloroethene 0.88 Not Detected 3.5 Not Detected Acetone 3.5 7.6 8.3 18 2-Propanol 3.5 Not Detected 8.6 Not Detected Carbon Disulfide 3.5 Not Detected 11 Not Detected 3-Chloropropene 3.5 Not Detected 11 Not Detected Methylene Chloride 0.88 Not Detected 3.0 Not Detected Methyl tert-butyl ether 0.88 Not Detected 3.2 Not Detected trans-1,2-Dichloroethene 0.88 Not Detected 3.5 Not Detected Hexane 0.88 Not Detected 3.1 Not Detected 1,1-Dichloroethane 0.88 Not Detected 3.5 Not Detected 2-Butanone (Methyl Ethyl Ketone) 3.5 Not Detected 10 Not Detected cis-1,2-Dichloroethene 0.88 Not Detected 3.5 Not Detected Tetrahydrofuran 0.88 Not Detected 2.6 Not Detected Chloroform 0.88 Not Detected 4.3 Not Detected 1,1,1-Trichloroethane 0.88 Not Detected 4.8 Not Detected Cyclohexane 0.88 Not Detected 3.0 Not Detected Carbon Tetrachloride 0.88 Not Detected 5.5 Not Detected 2,2,4-Trimethylpentane 0.88 Not Detected 4.1 Not Detected Benzene 0.88 Not Detected 2.8 Not Detected 1,2-Dichloroethane 0.88 Not Detected 3.5 Not Detected Heptane 0.88 Not Detected 3.6 Not Detected Trichloroethene 0.88 Not Detected 4.7 Not Detected 1,2-Dichloropropane 0.88 Not Detected 4.0 Not Detected 1,4-Dioxane 3.5 Not Detected 13 Not Detected Bromodichloromethane 0.88 Not Detected 5.9 Not Detected cis-1,3-Dichloropropene 0.88 Not Detected 4.0 Not Detected 4-Methyl-2-pentanone 0.88 Not Detected 3.6 Not Detected Toluene 0.88 Not Detected 3.3 Not Detected trans-1,3-Dichloropropene 0.88 Not Detected 4.0 Not Detected 1,1,2-Trichloroethane 0.88 Not Detected 4.8 Not Detected Tetrachloroethene 0.88 Not Detected 5.9 Not Detected

Page 10 of 21 Client Sample ID: SP-A-FENCE-011912 Lab ID#: 1201330AR1-03A EPA METHOD TO-15 GC/MS FULL SCAN

TENTATIVELY IDENTIFIED COMPOUNDS Amount Compound CAS Number Match Quality ((ppbv)) None Identified

Container Type: 6 Liter Summa Canister Method Surrogates %Recovery Limits Toluene-d8 100 70-130 1,2-Dichloroethane-d4 123 70-130 4-Bromofluorobenzene 101 70-130

Page 11 of 21 Client Sample ID: TB-011912 Lab ID#: 1201330AR1-04A EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p012015r1 Date of Collection: 1/19/12 Dil. Factor: 1.00 Date of Analysis: 1/20/12 03:50 PM Rpt. Limit Amount Rpt. Limit Amount Compound (ppbv) (ppbv) (ug/m3) (ug/m3) Freon 12 0.50 Not Detected 2.5 Not Detected Freon 114 0.50 Not Detected 3.5 Not Detected Chloromethane 2.0 Not Detected 4.1 Not Detected Vinyl Chloride 0.50 Not Detected 1.3 Not Detected 1,3-Butadiene 0.50 Not Detected 1.1 Not Detected Bromomethane 0.50 Not Detected 1.9 Not Detected Chloroethane 2.0 Not Detected 5.3 Not Detected Freon 11 0.50 Not Detected 2.8 Not Detected Ethanol 2.0 Not Detected 3.8 Not Detected Freon 113 0.50 Not Detected 3.8 Not Detected 1,1-Dichloroethene 0.50 Not Detected 2.0 Not Detected Acetone 2.0 Not Detected 4.8 Not Detected 2-Propanol 2.0 Not Detected 4.9 Not Detected Carbon Disulfide 2.0 Not Detected 6.2 Not Detected 3-Chloropropene 2.0 Not Detected 6.3 Not Detected Methylene Chloride 0.50 Not Detected 1.7 Not Detected Methyl tert-butyl ether 0.50 Not Detected 1.8 Not Detected trans-1,2-Dichloroethene 0.50 Not Detected 2.0 Not Detected Hexane 0.50 Not Detected 1.8 Not Detected 1,1-Dichloroethane 0.50 Not Detected 2.0 Not Detected 2-Butanone (Methyl Ethyl Ketone) 2.0 Not Detected 5.9 Not Detected cis-1,2-Dichloroethene 0.50 Not Detected 2.0 Not Detected Tetrahydrofuran 0.50 Not Detected 1.5 Not Detected Chloroform 0.50 Not Detected 2.4 Not Detected 1,1,1-Trichloroethane 0.50 Not Detected 2.7 Not Detected Cyclohexane 0.50 Not Detected 1.7 Not Detected Carbon Tetrachloride 0.50 Not Detected 3.1 Not Detected 2,2,4-Trimethylpentane 0.50 Not Detected 2.3 Not Detected Benzene 0.50 Not Detected 1.6 Not Detected 1,2-Dichloroethane 0.50 Not Detected 2.0 Not Detected Heptane 0.50 Not Detected 2.0 Not Detected Trichloroethene 0.50 Not Detected 2.7 Not Detected 1,2-Dichloropropane 0.50 Not Detected 2.3 Not Detected 1,4-Dioxane 2.0 Not Detected 7.2 Not Detected Bromodichloromethane 0.50 Not Detected 3.4 Not Detected cis-1,3-Dichloropropene 0.50 Not Detected 2.3 Not Detected 4-Methyl-2-pentanone 0.50 Not Detected 2.0 Not Detected Toluene 0.50 Not Detected 1.9 Not Detected trans-1,3-Dichloropropene 0.50 Not Detected 2.3 Not Detected 1,1,2-Trichloroethane 0.50 Not Detected 2.7 Not Detected Tetrachloroethene 0.50 Not Detected 3.4 Not Detected

Page 12 of 21 Client Sample ID: TB-011912 Lab ID#: 1201330AR1-04A EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p012015r1 Date of Collection: 1/19/12 Dil. Factor: 1.00 Date of Analysis: 1/20/12 03:50 PM Rpt. Limit Amount Rpt. Limit Amount Compound (ppbv) (ppbv) (ug/m3) (ug/m3) 2-Hexanone 2.0 Not Detected 8.2 Not Detected Dibromochloromethane 0.50 Not Detected 4.2 Not Detected 1,2-Dibromoethane (EDB) 0.50 Not Detected 3.8 Not Detected Chlorobenzene 0.50 Not Detected 2.3 Not Detected Ethyl Benzene 0.50 Not Detected 2.2 Not Detected m,p-Xylene 0.50 Not Detected 2.2 Not Detected o-Xylene 0.50 Not Detected 2.2 Not Detected Styrene 0.50 Not Detected 2.1 Not Detected Bromoform 0.50 Not Detected 5.2 Not Detected Cumene 0.50 Not Detected 2.4 Not Detected 1,1,2,2-Tetrachloroethane 0.50 Not Detected 3.4 Not Detected Propylbenzene 0.50 Not Detected 2.4 Not Detected 4-Ethyltoluene 0.50 Not Detected 2.4 Not Detected 1,3,5-Trimethylbenzene 0.50 Not Detected 2.4 Not Detected 1,2,4-Trimethylbenzene 0.50 Not Detected 2.4 Not Detected 1,3-Dichlorobenzene 0.50 Not Detected 3.0 Not Detected 1,4-Dichlorobenzene 0.50 Not Detected 3.0 Not Detected alpha-Chlorotoluene 0.50 Not Detected 2.6 Not Detected 1,2-Dichlorobenzene 0.50 Not Detected 3.0 Not Detected 1,2,4-Trichlorobenzene 2.0 Not Detected 15 Not Detected Hexachlorobutadiene 2.0 Not Detected 21 Not Detected Acrolein 2.0 Not Detected 4.6 Not Detected Naphthalene 2.0 Not Detected 10 Not Detected

TENTATIVELY IDENTIFIED COMPOUNDS Amount Compound CAS Number Match Quality ((ppbv)) None Identified

Container Type: 6 Liter Summa Canister Method Surrogates %Recovery Limits Toluene-d8 102 70-130 1,2-Dichloroethane-d4 119 70-130 4-Bromofluorobenzene 109 70-130

Page 13 of 21 Client Sample ID: Lab Blank Lab ID#: 1201330AR1-05A EPA METHOD TO-15 GC/MS FULL SCAN

Page 14 of 21 Client Sample ID: Lab Blank Lab ID#: 1201330AR1-05A EPA METHOD TO-15 GC/MS FULL SCAN

TENTATIVELY IDENTIFIED COMPOUNDS Amount Compound CAS Number Match Quality ((ppbv)) None Identified

Container Type: NA - Not Applicable Method Surrogates %Recovery Limits Toluene-d8 101 70-130 1,2-Dichloroethane-d4 120 70-130 4-Bromofluorobenzene 97 70-130

Page 15 of 21 Client Sample ID: CCV Lab ID#: 1201330AR1-06A EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p012005 Date of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/20/12 10:21 AM

Page 16 of 21 Client Sample ID: CCV Lab ID#: 1201330AR1-06A EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p012005 Date of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/20/12 10:21 AM

Q = Exceeds Quality Control limits. Container Type: NA - Not Applicable Method Surrogates %Recovery Limits Toluene-d8 104 70-130 1,2-Dichloroethane-d4 124 70-130 4-Bromofluorobenzene 103 70-130

Page 17 of 21 Client Sample ID: LCS Lab ID#: 1201330AR1-07A EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p012007 Date of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/20/12 11:08 AM

Page 18 of 21 Client Sample ID: LCS Lab ID#: 1201330AR1-07A EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p012007 Date of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/20/12 11:08 AM

Container Type: NA - Not Applicable Method Surrogates %Recovery Limits Toluene-d8 104 70-130 1,2-Dichloroethane-d4 126 70-130 4-Bromofluorobenzene 105 70-130

Page 19 of 21 Client Sample ID: LCSD Lab ID#: 1201330AR1-07AA EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p012008 Date of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/20/12 11:25 AM

Page 20 of 21 Client Sample ID: LCSD Lab ID#: 1201330AR1-07AA EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p012008 Date of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/20/12 11:25 AM

Container Type: NA - Not Applicable Method Surrogates %Recovery Limits Toluene-d8 95 70-130 1,2-Dichloroethane-d4 119 70-130 4-Bromofluorobenzene 102 70-130

Page 21 of 21 1/20/2012 Ms. Katie Wynne Arcadis U.S., Inc. 950 Glenn Drive Suite 125 Folsom CA 95630

Project Name: Shell Pond Project #: B0092353.0003.0001d Workorder #: 1201330B

Dear Ms. Katie Wynne

The following report includes the data for the above referenced project for sample(s) received on 1/20/2012 at Air Toxics Ltd.

The data and associated QC analyzed by Modified ASTM D-5504 are compliant with the project requirements or laboratory criteria with the exception of the deviations noted in the attached case narrative. Thank you for choosing Air Toxics Ltd. for your air analysis needs. Air Toxics Ltd. is committed to providing accurate data of the highest quality. Please feel free to contact the Project Manager: Kyle Vagadori at 916-985-1000 if you have any questions regarding the data in this report.

Regards,

Kyle Vagadori Project Manager

180 BLUE RAVINE ROAD, SUITE B FOLSOM, CA - 95630 (916) 985-1000 .FAX (916) 985-1020 Hours 6:30 A.M to 5:30 PST Page 1 of 9 WORK ORDER #: 1201330B

Work Order Summary

RECEIPT FINAL FRACTION # NAME TEST VAC./PRES. PRESSURE 09A SP-A-UP-012012 Modified ASTM D-5504 Tedlar Bag Tedlar Bag 10A SP-A-DOWN-012012 Modified ASTM D-5504 Tedlar Bag Tedlar Bag 11A SP-A-FENCE-012012 Modified ASTM D-5504 Tedlar Bag Tedlar Bag 12A Lab Blank Modified ASTM D-5504 NA NA 13A LCS Modified ASTM D-5504 NA NA

CERTIFIED BY: DATE: 01/20/12 Laboratory Director Certfication numbers: AZ Licensure AZ0719, CA NELAP - 02110CA, LA NELAP - 02089, NY NELAP - 11291, TX NELAP - T104704434-11-3, UT NELAP -CA009332011-1, WA NELAP - C935 Name of Accrediting Agency: NELAP/Florida Department of Health, Scope of Application: Clean Air Act, Accreditation number: E87680, Effective date: 07/01/11 , Expiration date: 06/30/12. Air Toxics Ltd. certifies that the test results contained in this report meet all requirements of the NELAC standards This report shall not be reproduced, except in full, without the written approval of Air Toxics Ltd. 180 BLUE RAVINE ROAD, SUITE B FOLSOM, CA - 95630 (916) 985-1000 . (800) 985-5955 . FAX (916) 985-1020 Page 2 of 9 LABORATORY NARRATIVE ASTM D-5504 Arcadis U.S., Inc. Workorder# 1201330B

Three 1 Liter Tedlar Bag samples were received on January 20, 2012. The laboratory performed the analysis of sulfur compounds via ASTM D-5504 using GC/SCD. The method involves direct injection of the air sample into the GC via a fixed 2.0 mL sampling loop. See the data sheets for the reporting limits for each compound.

Receiving Notes There were no receiving discrepancies. Analytical Notes There were no analytical discrepancies.

Definition of Data Qualifying Flags Seven qualifiers may have been used on the data analysis sheets and indicate as follows: B - Compound present in laboratory blank greater than reporting limit. J - Estimated value. E - Exceeds instrument calibration range. S - Saturated peak. Q - Exceeds quality control limits. U - Compound analyzed for but not detected above the detection limit. M - Reported value may be biased due to apparent matrix interferences. File extensions may have been used on the data analysis sheets and indicates as follows: a-File was requantified b-File was quantified by a second column and detector r1-File was requantified for the purpose of reissue

Page 3 of 9 Summary of Detected Compounds SULFUR GASES BY ASTM D-5504 GC/SCD

Client Sample ID: SP-A-UP-012012 Lab ID#: 1201330B-09A No Detections Were Found.

Client Sample ID: SP-A-DOWN-012012 Lab ID#: 1201330B-10A No Detections Were Found.

Client Sample ID: SP-A-FENCE-012012 Lab ID#: 1201330B-11A No Detections Were Found.

Page 4 of 9 Client Sample ID: SP-A-UP-012012 Lab ID#: 1201330B-09A SULFUR GASES BY ASTM D-5504 GC/SCD

File Name: l012005 Date of Collection: 1/20/12 8:57:00 AM Dil. Factor: 1.00 Date of Analysis: 1/20/12 11:45 AM Rpt. Limit Amount Compound (ppbv) (ppbv) Hydrogen Sulfide 4.0 Not Detected Carbonyl Sulfide 4.0 Not Detected Methyl Mercaptan 4.0 Not Detected Ethyl Mercaptan 4.0 Not Detected Dimethyl Sulfide 4.0 Not Detected Carbon Disulfide 5.0 Not Detected Isopropyl Mercaptan 4.0 Not Detected tert-Butyl Mercaptan 4.0 Not Detected n-Propyl Mercaptan 4.0 Not Detected Ethyl Methyl Sulfide 4.0 Not Detected Thiophene 4.0 Not Detected Isobutyl Mercaptan 4.0 Not Detected Diethyl Sulfide 4.0 Not Detected n-Butyl Mercaptan 4.0 Not Detected Dimethyl Disulfide 4.0 Not Detected 3-Methylthiophene 4.0 Not Detected Tetrahydrothiophene 4.0 Not Detected 2-Ethylthiophene 4.0 Not Detected 2,5-Dimethylthiophene 4.0 Not Detected Diethyl Disulfide 4.0 Not Detected

Container Type: 1 Liter Tedlar Bag

Page 5 of 9 Client Sample ID: SP-A-DOWN-012012 Lab ID#: 1201330B-10A SULFUR GASES BY ASTM D-5504 GC/SCD

File Name: l012006 Date of Collection: 1/20/12 8:50:00 AM Dil. Factor: 1.00 Date of Analysis: 1/20/12 12:07 PM Rpt. Limit Amount Compound (ppbv) (ppbv) Hydrogen Sulfide 4.0 Not Detected Carbonyl Sulfide 4.0 Not Detected Methyl Mercaptan 4.0 Not Detected Ethyl Mercaptan 4.0 Not Detected Dimethyl Sulfide 4.0 Not Detected Carbon Disulfide 5.0 Not Detected Isopropyl Mercaptan 4.0 Not Detected tert-Butyl Mercaptan 4.0 Not Detected n-Propyl Mercaptan 4.0 Not Detected Ethyl Methyl Sulfide 4.0 Not Detected Thiophene 4.0 Not Detected Isobutyl Mercaptan 4.0 Not Detected Diethyl Sulfide 4.0 Not Detected n-Butyl Mercaptan 4.0 Not Detected Dimethyl Disulfide 4.0 Not Detected 3-Methylthiophene 4.0 Not Detected Tetrahydrothiophene 4.0 Not Detected 2-Ethylthiophene 4.0 Not Detected 2,5-Dimethylthiophene 4.0 Not Detected Diethyl Disulfide 4.0 Not Detected

Container Type: 1 Liter Tedlar Bag

Page 6 of 9 Client Sample ID: SP-A-FENCE-012012 Lab ID#: 1201330B-11A SULFUR GASES BY ASTM D-5504 GC/SCD

File Name: l012007 Date of Collection: 1/20/12 8:51:00 AM Dil. Factor: 1.00 Date of Analysis: 1/20/12 12:29 PM Rpt. Limit Amount Compound (ppbv) (ppbv) Hydrogen Sulfide 4.0 Not Detected Carbonyl Sulfide 4.0 Not Detected Methyl Mercaptan 4.0 Not Detected Ethyl Mercaptan 4.0 Not Detected Dimethyl Sulfide 4.0 Not Detected Carbon Disulfide 5.0 Not Detected Isopropyl Mercaptan 4.0 Not Detected tert-Butyl Mercaptan 4.0 Not Detected n-Propyl Mercaptan 4.0 Not Detected Ethyl Methyl Sulfide 4.0 Not Detected Thiophene 4.0 Not Detected Isobutyl Mercaptan 4.0 Not Detected Diethyl Sulfide 4.0 Not Detected n-Butyl Mercaptan 4.0 Not Detected Dimethyl Disulfide 4.0 Not Detected 3-Methylthiophene 4.0 Not Detected Tetrahydrothiophene 4.0 Not Detected 2-Ethylthiophene 4.0 Not Detected 2,5-Dimethylthiophene 4.0 Not Detected Diethyl Disulfide 4.0 Not Detected

Container Type: 1 Liter Tedlar Bag

Page 7 of 9 Client Sample ID: Lab Blank Lab ID#: 1201330B-12A SULFUR GASES BY ASTM D-5504 GC/SCD

File Name: l012004 Date of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/19/12 07:30 PM Rpt. Limit Amount Compound (ppbv) (ppbv) Hydrogen Sulfide 4.0 Not Detected Carbonyl Sulfide 4.0 Not Detected Methyl Mercaptan 4.0 Not Detected Ethyl Mercaptan 4.0 Not Detected Dimethyl Sulfide 4.0 Not Detected Carbon Disulfide 5.0 Not Detected Isopropyl Mercaptan 4.0 Not Detected tert-Butyl Mercaptan 4.0 Not Detected n-Propyl Mercaptan 4.0 Not Detected Ethyl Methyl Sulfide 4.0 Not Detected Thiophene 4.0 Not Detected Isobutyl Mercaptan 4.0 Not Detected Diethyl Sulfide 4.0 Not Detected n-Butyl Mercaptan 4.0 Not Detected Dimethyl Disulfide 4.0 Not Detected 3-Methylthiophene 4.0 Not Detected Tetrahydrothiophene 4.0 Not Detected 2-Ethylthiophene 4.0 Not Detected 2,5-Dimethylthiophene 4.0 Not Detected Diethyl Disulfide 4.0 Not Detected

Container Type: NA - Not Applicable

Page 8 of 9 Client Sample ID: LCS Lab ID#: 1201330B-13A SULFUR GASES BY ASTM D-5504 GC/SCD

File Name: l012003 Date of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/19/12 07:06 PM

Compound %Recovery Hydrogen Sulfide 78 Carbonyl Sulfide 104 Methyl Mercaptan 101 Ethyl Mercaptan 111 Dimethyl Sulfide 103 Carbon Disulfide 89 Isopropyl Mercaptan 104 tert-Butyl Mercaptan 102 n-Propyl Mercaptan 106 Ethyl Methyl Sulfide 108 Thiophene 100 Isobutyl Mercaptan 108 Diethyl Sulfide 104 n-Butyl Mercaptan 112 Dimethyl Disulfide 93 3-Methylthiophene 102 Tetrahydrothiophene 106 2-Ethylthiophene 109 2,5-Dimethylthiophene 103 Diethyl Disulfide 113

Container Type: NA - Not Applicable

Page 9 of 9 1/24/2012 Ms. Katie Wynne Arcadis U.S., Inc. 950 Glenn Drive Suite 125 Folsom CA 95630

Project Name: Shell Pond Project #: B0092353.0003.0001d Workorder #: 1201330C

Dear Ms. Katie Wynne

The following report includes the data for the above referenced project for sample(s) received on 1/20/2012 at Air Toxics Ltd.

The data and associated QC analyzed by Modified TO-17 VI are compliant with the project requirements or laboratory criteria with the exception of the deviations noted in the attached case narrative. Thank you for choosing Air Toxics Ltd. for your air analysis needs. Air Toxics Ltd. is committed to providing accurate data of the highest quality. Please feel free to contact the Project Manager: Kyle Vagadori at 916-985-1000 if you have any questions regarding the data in this report.

Regards,

Kyle Vagadori Project Manager

180 BLUE RAVINE ROAD, SUITE B FOLSOM, CA - 95630 (916) 985-1000 .FAX (916) 985-1020 Hours 6:30 A.M to 5:30 PST Page 1 of 22 WORK ORDER #: 1201330C

Work Order Summary

FRACTION # NAME TEST 05A SP-A-UP-011912 Modified TO-17 VI 06A SP-A-DOWN-011912 Modified TO-17 VI 07A SP-A-FENCE-011912 Modified TO-17 VI 08A TB-011912 Modified TO-17 VI 09A Lab Blank Modified TO-17 VI 10A CCV Modified TO-17 VI 11A LCS Modified TO-17 VI 11AA LCSD Modified TO-17 VI

CERTIFIED BY: DATE: 01/24/12 Laboratory Director Certfication numbers: AZ Licensure AZ0719, CA NELAP - 02110CA, LA NELAP - 02089, NY NELAP - 11291, TX NELAP - T104704434-11-3, UT NELAP -CA009332011-1, WA NELAP - C935 Name of Accrediting Agency: NELAP/Florida Department of Health, Scope of Application: Clean Air Act, Accreditation number: E87680, Effective date: 07/01/11 , Expiration date: 06/30/12. Air Toxics Ltd. certifies that the test results contained in this report meet all requirements of the NELAC standards This report shall not be reproduced, except in full, without the written approval of Air Toxics Ltd. 180 BLUE RAVINE ROAD, SUITE B FOLSOM, CA - 95630 (916) 985-1000 . (800) 985-5955 . FAX (916) 985-1020 Page 2 of 22 LABORATORY NARRATIVE EPA Method TO-17 Arcadis U.S., Inc. Workorder# 1201330C

Four TO-17 VI Tube samples were received on January 20, 2012. The laboratory performed the analysis via EPA Method TO-17 using GC/MS in the full scan mode. TO-17 sorbent tubes are thermally desorbed onto a secondary trap. The trap is thermally desorbed to elute the components into the GC/MS system for further separation.

Receiving Notes There were no receiving discrepancies. Analytical Notes A sampling volume of 1.16 L was used to convert ng to ug/m3 for the associated Lab Blank and sample TB-011912.

The reporting limit for 1,2,4-Trichlorobenzene, 1,4-Dichlorobenzene, 1,2-Dichlorobenzene, Hexachlorobutadiene, Naphthalene, 2-Methylnaphthalene, and 1-Methylnaphthalene was raised to 15ng, 12ng, 12ng, 22ng, 1.0ng, 1.0ng, and 1.0ng respectively due to poor instrument response at the lowest calibration level.

All Quality Control Limit exceedences and affected sample results are noted by flags. Each flag is defined at the bottom of this Case Narrative and on each Sample Result Summary page. Target compound non-detects in the samples that are associated with high bias in QC analyses have not been flagged. Definition of Data Qualifying Flags Eight qualifiers may have been used on the data analysis sheets and indicates as follows: B - Compound present in laboratory blank greater than reporting limit (background subtraction not performed). J - Estimated value. E - Exceeds instrument calibration range. S - Saturated peak. Q - Exceeds quality control limits. U - Compound analyzed for but not detected above the reporting limit. UJ- Non-detected compound associated with low bias in the CCV and/or LCS. N - The identification is based on presumptive evidence.

File extensions may have been used on the data analysis sheets and indicates as follows: a-File was requantified b-File was quantified by a second column and detector r1-File was requantified for the purpose of reissue

Page 3 of 22 Summary of Detected Compounds EPA METHOD TO-17

Client Sample ID: SP-A-UP-011912 Lab ID#: 1201330C-05A Rpt. Limit Rpt. Limit Amount Amount Compound (ng) (ug/m3) (ng) (ug/m3) Isopentane 3.0 2.6 34 30 Freon 11 5.6 4.9 23 20 Freon 113 7.7 6.8 9.7 8.5 Hexane 3.5 3.1 8.8 7.7 Benzene 3.2 2.8 17 15 Carbon Tetrachloride 6.3 5.5 11 9.3 Cyclohexane 3.4 3.0 3.4 3.0 2,2,4-Trimethylpentane 4.7 4.1 6.3 5.5 Heptane 4.1 3.6 7.1 6.2 Toluene 3.8 3.3 26 23 Ethyl Benzene 4.3 3.8 5.6 4.9 m,p-Xylene 4.3 3.8 18 15 o-Xylene 4.3 3.8 6.6 5.8 Naphthalene 1.0 0.88 3.5 3.1 2-Methylnaphthalene 1.0 0.88 1.4 1.2

Client Sample ID: SP-A-DOWN-011912 Lab ID#: 1201330C-06A Rpt. Limit Rpt. Limit Amount Amount Compound (ng) (ug/m3) (ng) (ug/m3) Isopentane 3.0 2.6 420 360 Freon 11 5.6 4.8 26 22 Freon 113 7.7 6.6 12 10 Hexane 3.5 3.0 10 8.6 Benzene 3.2 2.8 18 15 Carbon Tetrachloride 6.3 5.4 12 11 Cyclohexane 3.4 2.9 3.7 3.2 2,2,4-Trimethylpentane 4.7 4.0 7.1 6.1 Heptane 4.1 3.5 8.1 7.0 Methylcyclohexane 4.0 3.4 5.4 4.6 Toluene 3.8 3.3 47 40

Page 4 of 22 Summary of Detected Compounds EPA METHOD TO-17

Client Sample ID: SP-A-DOWN-011912 Lab ID#: 1201330C-06A Ethyl Benzene 4.3 3.7 17 15 m,p-Xylene 4.3 3.7 20 18 o-Xylene 4.3 3.7 8.3 7.2 Styrene 4.2 3.6 38 32 Naphthalene 1.0 0.86 2.8 2.4 2-Methylnaphthalene 1.0 0.86 1.6 1.4 1-Methylnaphthalene 1.0 0.86 4.4 3.8

Client Sample ID: SP-A-FENCE-011912 Lab ID#: 1201330C-07A Rpt. Limit Rpt. Limit Amount Amount Compound (ng) (ug/m3) (ng) (ug/m3) Isopentane 3.0 2.9 340 320 Freon 11 5.6 5.4 26 25 Freon 113 7.7 7.4 14 13 Hexane 3.5 3.4 13 13 Benzene 3.2 3.1 24 23 Carbon Tetrachloride 6.3 6.0 6.9 6.6 Cyclohexane 3.4 3.3 3.9 3.8 2,2,4-Trimethylpentane 4.7 4.5 8.9 8.6 Heptane 4.1 3.9 10 9.8 Methylcyclohexane 4.0 3.8 5.2 5.0 Toluene 3.8 3.6 56 53 Ethyl Benzene 4.3 4.1 17 16 m,p-Xylene 4.3 4.1 28 26 o-Xylene 4.3 4.1 11 11 Styrene 4.2 4.0 26 25 Naphthalene 1.0 0.96 3.6 3.5 2-Methylnaphthalene 1.0 0.96 2.0 1.9 1-Methylnaphthalene 1.0 0.96 1.3 1.2

Client Sample ID: TB-011912 Lab ID#: 1201330C-08A

Page 5 of 22 Summary of Detected Compounds EPA METHOD TO-17

Client Sample ID: TB-011912 Lab ID#: 1201330C-08A No Detections Were Found.

Page 6 of 22 Client Sample ID: SP-A-UP-011912 Lab ID#: 1201330C-05A EPA METHOD TO-17

File Name: 16012309 Date of Extraction: NADate of Collection: 1/19/12 4:47:00 PM Dil. Factor: 1.00 Date of Analysis: 1/23/12 04:47 PM Rpt. Limit Rpt. Limit Amount Amount Compound (ng) (ug/m3) (ng) (ug/m3) Freon 114 7.0 6.1 Not Detected Not Detected Vinyl Chloride 2.6 2.3 Not Detected Not Detected 1,3-Butadiene 2.2 1.9 Not Detected Not Detected Isopentane 3.0 2.6 34 30 Freon 11 5.6 4.9 23 20 1,1-Dichloroethene 4.0 3.5 Not Detected Not Detected Methylene Chloride 21 18 Not Detected UJ Not Detected UJ Freon 113 7.7 6.8 9.7 8.5 trans-1,2-Dichloroethene 4.0 3.5 Not Detected Not Detected 1,1-Dichloroethane 4.0 3.5 Not Detected Not Detected cis-1,2-Dichloroethene 4.0 3.5 Not Detected Not Detected Hexane 3.5 3.1 8.8 7.7 Chloroform 4.9 4.3 Not Detected Not Detected 1,2-Dichloroethane 4.0 3.5 Not Detected Not Detected 1,1,1-Trichloroethane 5.4 4.7 Not Detected Not Detected Benzene 3.2 2.8 17 15 Carbon Tetrachloride 6.3 5.5 11 9.3 Cyclohexane 3.4 3.0 3.4 3.0 1,2-Dichloropropane 4.6 4.0 Not Detected Not Detected Trichloroethene 5.4 4.7 Not Detected Not Detected 1,4-Dioxane 11 9.6 Not Detected Not Detected 2,2,4-Trimethylpentane 4.7 4.1 6.3 5.5 Heptane 4.1 3.6 7.1 6.2 Methylcyclohexane 4.0 3.5 Not Detected Not Detected 1,1,2-Trichloroethane 5.4 4.7 Not Detected Not Detected 4-Methyl-2-pentanone 4.1 3.6 Not Detected Not Detected Toluene 3.8 3.3 26 23 2-Hexanone 4.1 3.6 Not Detected Not Detected Tetrachloroethene 6.8 6.0 Not Detected Not Detected Chlorobenzene 4.6 4.0 Not Detected Not Detected Ethyl Benzene 4.3 3.8 5.6 4.9 m,p-Xylene 4.3 3.8 18 15 o-Xylene 4.3 3.8 6.6 5.8 Styrene 4.2 3.7 Not Detected Not Detected 1,1,2,2-Tetrachloroethane 6.9 6.0 Not Detected Not Detected Cumene 4.9 4.3 Not Detected Not Detected Propylbenzene 4.9 4.3 Not Detected Not Detected 4-Ethyltoluene 4.9 4.3 Not Detected Not Detected 1,3,5-Trimethylbenzene 4.9 4.3 Not Detected Not Detected 1,2,4-Trimethylbenzene 29 25 Not Detected Not Detected 1,3-Dichlorobenzene 6.0 5.3 Not Detected Not Detected

Page 7 of 22 Client Sample ID: SP-A-UP-011912 Lab ID#: 1201330C-05A EPA METHOD TO-17

Air Sample Volume(L): 1.14 UJ = Non-detected compound associated with low bias in the CCV and/or LCS. Container Type: TO-17 VI Tube Method Surrogates %Recovery Limits 1,2-Dichloroethane-d4 85 50-150 Toluene-d8 97 50-150 Naphthalene-d8 102 50-150

Page 8 of 22 Client Sample ID: SP-A-DOWN-011912 Lab ID#: 1201330C-06A EPA METHOD TO-17

File Name: 16012310 Date of Extraction: NADate of Collection: 1/19/12 5:10:00 PM Dil. Factor: 1.00 Date of Analysis: 1/23/12 05:25 PM Rpt. Limit Rpt. Limit Amount Amount Compound (ng) (ug/m3) (ng) (ug/m3) Freon 114 7.0 6.0 Not Detected Not Detected Vinyl Chloride 2.6 2.2 Not Detected Not Detected 1,3-Butadiene 2.2 1.9 Not Detected Not Detected Isopentane 3.0 2.6 420 360 Freon 11 5.6 4.8 26 22 1,1-Dichloroethene 4.0 3.4 Not Detected Not Detected Methylene Chloride 21 18 Not Detected UJ Not Detected UJ Freon 113 7.7 6.6 12 10 trans-1,2-Dichloroethene 4.0 3.4 Not Detected Not Detected 1,1-Dichloroethane 4.0 3.4 Not Detected Not Detected cis-1,2-Dichloroethene 4.0 3.4 Not Detected Not Detected Hexane 3.5 3.0 10 8.6 Chloroform 4.9 4.2 Not Detected Not Detected 1,2-Dichloroethane 4.0 3.4 Not Detected Not Detected 1,1,1-Trichloroethane 5.4 4.6 Not Detected Not Detected Benzene 3.2 2.8 18 15 Carbon Tetrachloride 6.3 5.4 12 11 Cyclohexane 3.4 2.9 3.7 3.2 1,2-Dichloropropane 4.6 4.0 Not Detected Not Detected Trichloroethene 5.4 4.6 Not Detected Not Detected 1,4-Dioxane 11 9.5 Not Detected Not Detected 2,2,4-Trimethylpentane 4.7 4.0 7.1 6.1 Heptane 4.1 3.5 8.1 7.0 Methylcyclohexane 4.0 3.4 5.4 4.6 1,1,2-Trichloroethane 5.4 4.6 Not Detected Not Detected 4-Methyl-2-pentanone 4.1 3.5 Not Detected Not Detected Toluene 3.8 3.3 47 40 2-Hexanone 4.1 3.5 Not Detected Not Detected Tetrachloroethene 6.8 5.9 Not Detected Not Detected Chlorobenzene 4.6 4.0 Not Detected Not Detected Ethyl Benzene 4.3 3.7 17 15 m,p-Xylene 4.3 3.7 20 18 o-Xylene 4.3 3.7 8.3 7.2 Styrene 4.2 3.6 38 32 1,1,2,2-Tetrachloroethane 6.9 5.9 Not Detected Not Detected Cumene 4.9 4.2 Not Detected Not Detected Propylbenzene 4.9 4.2 Not Detected Not Detected 4-Ethyltoluene 4.9 4.2 Not Detected Not Detected 1,3,5-Trimethylbenzene 4.9 4.2 Not Detected Not Detected 1,2,4-Trimethylbenzene 29 25 Not Detected Not Detected 1,3-Dichlorobenzene 6.0 5.2 Not Detected Not Detected

Page 9 of 22 Client Sample ID: SP-A-DOWN-011912 Lab ID#: 1201330C-06A EPA METHOD TO-17

Air Sample Volume(L): 1.16 UJ = Non-detected compound associated with low bias in the CCV and/or LCS. Container Type: TO-17 VI Tube Method Surrogates %Recovery Limits 1,2-Dichloroethane-d4 91 50-150 Toluene-d8 102 50-150 Naphthalene-d8 101 50-150

Page 10 of 22 Client Sample ID: SP-A-FENCE-011912 Lab ID#: 1201330C-07A EPA METHOD TO-17

File Name: 16012311 Date of Extraction: NADate of Collection: 1/19/12 4:47:00 PM Dil. Factor: 1.00 Date of Analysis: 1/23/12 06:38 PM Rpt. Limit Rpt. Limit Amount Amount Compound (ng) (ug/m3) (ng) (ug/m3) Freon 114 7.0 6.7 Not Detected Not Detected Vinyl Chloride 2.6 2.5 Not Detected Not Detected 1,3-Butadiene 2.2 2.1 Not Detected Not Detected Isopentane 3.0 2.9 340 320 Freon 11 5.6 5.4 26 25 1,1-Dichloroethene 4.0 3.8 Not Detected Not Detected Methylene Chloride 21 20 Not Detected UJ Not Detected UJ Freon 113 7.7 7.4 14 13 trans-1,2-Dichloroethene 4.0 3.8 Not Detected Not Detected 1,1-Dichloroethane 4.0 3.8 Not Detected Not Detected cis-1,2-Dichloroethene 4.0 3.8 Not Detected Not Detected Hexane 3.5 3.4 13 13 Chloroform 4.9 4.7 Not Detected Not Detected 1,2-Dichloroethane 4.0 3.8 Not Detected Not Detected 1,1,1-Trichloroethane 5.4 5.2 Not Detected Not Detected Benzene 3.2 3.1 24 23 Carbon Tetrachloride 6.3 6.0 6.9 6.6 Cyclohexane 3.4 3.3 3.9 3.8 1,2-Dichloropropane 4.6 4.4 Not Detected Not Detected Trichloroethene 5.4 5.2 Not Detected Not Detected 1,4-Dioxane 11 10 Not Detected Not Detected 2,2,4-Trimethylpentane 4.7 4.5 8.9 8.6 Heptane 4.1 3.9 10 9.8 Methylcyclohexane 4.0 3.8 5.2 5.0 1,1,2-Trichloroethane 5.4 5.2 Not Detected Not Detected 4-Methyl-2-pentanone 4.1 3.9 Not Detected Not Detected Toluene 3.8 3.6 56 53 2-Hexanone 4.1 3.9 Not Detected Not Detected Tetrachloroethene 6.8 6.5 Not Detected Not Detected Chlorobenzene 4.6 4.4 Not Detected Not Detected Ethyl Benzene 4.3 4.1 17 16 m,p-Xylene 4.3 4.1 28 26 o-Xylene 4.3 4.1 11 11 Styrene 4.2 4.0 26 25 1,1,2,2-Tetrachloroethane 6.9 6.6 Not Detected Not Detected Cumene 4.9 4.7 Not Detected Not Detected Propylbenzene 4.9 4.7 Not Detected Not Detected 4-Ethyltoluene 4.9 4.7 Not Detected Not Detected 1,3,5-Trimethylbenzene 4.9 4.7 Not Detected Not Detected 1,2,4-Trimethylbenzene 29 28 Not Detected Not Detected 1,3-Dichlorobenzene 6.0 5.8 Not Detected Not Detected

Page 11 of 22 Client Sample ID: SP-A-FENCE-011912 Lab ID#: 1201330C-07A EPA METHOD TO-17

Air Sample Volume(L): 1.04 UJ = Non-detected compound associated with low bias in the CCV and/or LCS. Container Type: TO-17 VI Tube Method Surrogates %Recovery Limits 1,2-Dichloroethane-d4 74 50-150 Toluene-d8 92 50-150 Naphthalene-d8 93 50-150

Page 12 of 22 Client Sample ID: TB-011912 Lab ID#: 1201330C-08A EPA METHOD TO-17

File Name: 16012308 Date of Extraction: NADate of Collection: 1/19/12 Dil. Factor: 1.00 Date of Analysis: 1/23/12 04:07 PM Rpt. Limit Rpt. Limit Amount Amount Compound (ng) (ug/m3) (ng) (ug/m3) Freon 114 7.0 6.0 Not Detected Not Detected Vinyl Chloride 2.6 2.2 Not Detected Not Detected 1,3-Butadiene 2.2 1.9 Not Detected Not Detected Isopentane 3.0 2.6 Not Detected Not Detected Freon 11 5.6 4.8 Not Detected Not Detected 1,1-Dichloroethene 4.0 3.4 Not Detected Not Detected Methylene Chloride 21 18 Not Detected UJ Not Detected UJ Freon 113 7.7 6.6 Not Detected Not Detected trans-1,2-Dichloroethene 4.0 3.4 Not Detected Not Detected 1,1-Dichloroethane 4.0 3.4 Not Detected Not Detected cis-1,2-Dichloroethene 4.0 3.4 Not Detected Not Detected Hexane 3.5 3.0 Not Detected Not Detected Chloroform 4.9 4.2 Not Detected Not Detected 1,2-Dichloroethane 4.0 3.4 Not Detected Not Detected 1,1,1-Trichloroethane 5.4 4.6 Not Detected Not Detected Benzene 3.2 2.8 Not Detected Not Detected Carbon Tetrachloride 6.3 5.4 Not Detected Not Detected Cyclohexane 3.4 2.9 Not Detected Not Detected 1,2-Dichloropropane 4.6 4.0 Not Detected Not Detected Trichloroethene 5.4 4.6 Not Detected Not Detected 1,4-Dioxane 11 9.5 Not Detected Not Detected 2,2,4-Trimethylpentane 4.7 4.0 Not Detected Not Detected Heptane 4.1 3.5 Not Detected Not Detected Methylcyclohexane 4.0 3.4 Not Detected Not Detected 1,1,2-Trichloroethane 5.4 4.6 Not Detected Not Detected 4-Methyl-2-pentanone 4.1 3.5 Not Detected Not Detected Toluene 3.8 3.3 Not Detected Not Detected 2-Hexanone 4.1 3.5 Not Detected Not Detected Tetrachloroethene 6.8 5.9 Not Detected Not Detected Chlorobenzene 4.6 4.0 Not Detected Not Detected Ethyl Benzene 4.3 3.7 Not Detected Not Detected m,p-Xylene 4.3 3.7 Not Detected Not Detected o-Xylene 4.3 3.7 Not Detected Not Detected Styrene 4.2 3.6 Not Detected Not Detected 1,1,2,2-Tetrachloroethane 6.9 5.9 Not Detected Not Detected Cumene 4.9 4.2 Not Detected Not Detected Propylbenzene 4.9 4.2 Not Detected Not Detected 4-Ethyltoluene 4.9 4.2 Not Detected Not Detected 1,3,5-Trimethylbenzene 4.9 4.2 Not Detected Not Detected 1,2,4-Trimethylbenzene 29 25 Not Detected Not Detected 1,3-Dichlorobenzene 6.0 5.2 Not Detected Not Detected

Page 13 of 22 Client Sample ID: TB-011912 Lab ID#: 1201330C-08A EPA METHOD TO-17

File Name: 16012308 Date of Extraction: NADate of Collection: 1/19/12 Dil. Factor: 1.00 Date of Analysis: 1/23/12 04:07 PM Rpt. Limit Rpt. Limit Amount Amount Compound (ng) (ug/m3) (ng) (ug/m3) 1,4-Dichlorobenzene 12 10 Not Detected Not Detected 1,2-Dichlorobenzene 12 10 Not Detected Not Detected 1,2,4-Trichlorobenzene 15 13 Not Detected Not Detected Hexachlorobutadiene 22 19 Not Detected Not Detected Naphthalene 1.0 0.86 Not Detected Not Detected 2-Methylnaphthalene 1.0 0.86 Not Detected Not Detected 1-Methylnaphthalene 1.0 0.86 Not Detected Not Detected Acenaphthylene 5.0 4.3 Not Detected Not Detected Acenaphthene 5.0 4.3 Not Detected Not Detected Fluorene 5.0 4.3 Not Detected Not Detected Phenanthrene 5.0 4.3 Not Detected Not Detected Anthracene 5.0 4.3 Not Detected Not Detected Fluoranthene 5.0 4.3 Not Detected Not Detected Pyrene 5.0 4.3 Not Detected Not Detected

Air Sample Volume(L): 1.16 UJ = Non-detected compound associated with low bias in the CCV and/or LCS. Container Type: TO-17 VI Tube Method Surrogates %Recovery Limits 1,2-Dichloroethane-d4 92 50-150 Toluene-d8 94 50-150 Naphthalene-d8 92 50-150

Page 14 of 22 Client Sample ID: Lab Blank Lab ID#: 1201330C-09A EPA METHOD TO-17

File Name: 16012307 Date of Extraction: NADate of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/23/12 02:09 PM Rpt. Limit Rpt. Limit Amount Amount Compound (ng) (ug/m3) (ng) (ug/m3) Freon 114 7.0 6.0 Not Detected Not Detected Vinyl Chloride 2.6 2.2 Not Detected Not Detected 1,3-Butadiene 2.2 1.9 Not Detected Not Detected Isopentane 3.0 2.6 Not Detected Not Detected Freon 11 5.6 4.8 Not Detected Not Detected 1,1-Dichloroethene 4.0 3.4 Not Detected Not Detected Methylene Chloride 21 18 Not Detected UJ Not Detected UJ Freon 113 7.7 6.6 Not Detected Not Detected trans-1,2-Dichloroethene 4.0 3.4 Not Detected Not Detected 1,1-Dichloroethane 4.0 3.4 Not Detected Not Detected cis-1,2-Dichloroethene 4.0 3.4 Not Detected Not Detected Hexane 3.5 3.0 Not Detected Not Detected Chloroform 4.9 4.2 Not Detected Not Detected 1,2-Dichloroethane 4.0 3.4 Not Detected Not Detected 1,1,1-Trichloroethane 5.4 4.6 Not Detected Not Detected Benzene 3.2 2.8 Not Detected Not Detected Carbon Tetrachloride 6.3 5.4 Not Detected Not Detected Cyclohexane 3.4 2.9 Not Detected Not Detected 1,2-Dichloropropane 4.6 4.0 Not Detected Not Detected Trichloroethene 5.4 4.6 Not Detected Not Detected 1,4-Dioxane 11 9.5 Not Detected Not Detected 2,2,4-Trimethylpentane 4.7 4.0 Not Detected Not Detected Heptane 4.1 3.5 Not Detected Not Detected Methylcyclohexane 4.0 3.4 Not Detected Not Detected 1,1,2-Trichloroethane 5.4 4.6 Not Detected Not Detected 4-Methyl-2-pentanone 4.1 3.5 Not Detected Not Detected Toluene 3.8 3.3 Not Detected Not Detected 2-Hexanone 4.1 3.5 Not Detected Not Detected Tetrachloroethene 6.8 5.9 Not Detected Not Detected Chlorobenzene 4.6 4.0 Not Detected Not Detected Ethyl Benzene 4.3 3.7 Not Detected Not Detected m,p-Xylene 4.3 3.7 Not Detected Not Detected o-Xylene 4.3 3.7 Not Detected Not Detected Styrene 4.2 3.6 Not Detected Not Detected 1,1,2,2-Tetrachloroethane 6.9 5.9 Not Detected Not Detected Cumene 4.9 4.2 Not Detected Not Detected Propylbenzene 4.9 4.2 Not Detected Not Detected 4-Ethyltoluene 4.9 4.2 Not Detected Not Detected 1,3,5-Trimethylbenzene 4.9 4.2 Not Detected Not Detected 1,2,4-Trimethylbenzene 29 25 Not Detected Not Detected 1,3-Dichlorobenzene 6.0 5.2 Not Detected Not Detected

Page 15 of 22 Client Sample ID: Lab Blank Lab ID#: 1201330C-09A EPA METHOD TO-17

File Name: 16012307 Date of Extraction: NADate of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/23/12 02:09 PM Rpt. Limit Rpt. Limit Amount Amount Compound (ng) (ug/m3) (ng) (ug/m3) 1,4-Dichlorobenzene 12 10 Not Detected Not Detected 1,2-Dichlorobenzene 12 10 Not Detected Not Detected 1,2,4-Trichlorobenzene 15 13 Not Detected Not Detected Hexachlorobutadiene 22 19 Not Detected Not Detected Naphthalene 1.0 0.86 Not Detected Not Detected 2-Methylnaphthalene 1.0 0.86 Not Detected Not Detected 1-Methylnaphthalene 1.0 0.86 Not Detected Not Detected Acenaphthylene 5.0 4.3 Not Detected Not Detected Acenaphthene 5.0 4.3 Not Detected Not Detected Fluorene 5.0 4.3 Not Detected Not Detected Phenanthrene 5.0 4.3 Not Detected Not Detected Anthracene 5.0 4.3 Not Detected Not Detected Fluoranthene 5.0 4.3 Not Detected Not Detected Pyrene 5.0 4.3 Not Detected Not Detected

Air Sample Volume(L): 1.16 UJ = Non-detected compound associated with low bias in the CCV and/or LCS. Container Type: NA - Not Applicable Method Surrogates %Recovery Limits 1,2-Dichloroethane-d4 92 50-150 Toluene-d8 97 50-150 Naphthalene-d8 92 50-150

Page 16 of 22 Client Sample ID: CCV Lab ID#: 1201330C-10A EPA METHOD TO-17

File Name: 16012306 Date of Extraction: NADate of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/23/12 01:31 PM

Compound %Recovery Freon 114 87 Vinyl Chloride 84 1,3-Butadiene 81 Isopentane 80 Freon 11 89 1,1-Dichloroethene 82 Methylene Chloride 60 Q Freon 113 83 trans-1,2-Dichloroethene 82 1,1-Dichloroethane 83 cis-1,2-Dichloroethene 79 Hexane 77 Chloroform 84 1,2-Dichloroethane 83 1,1,1-Trichloroethane 85 Benzene 76 Carbon Tetrachloride 90 Cyclohexane 82 1,2-Dichloropropane 80 Trichloroethene 83 1,4-Dioxane 92 2,2,4-Trimethylpentane 84 Heptane 81 Methylcyclohexane 84 1,1,2-Trichloroethane 85 4-Methyl-2-pentanone 87 Toluene 84 2-Hexanone 88 Tetrachloroethene 84 Chlorobenzene 86 Ethyl Benzene 87 m,p-Xylene 85 o-Xylene 88 Styrene 94 1,1,2,2-Tetrachloroethane 96 Cumene 86 Propylbenzene 88 4-Ethyltoluene 88 1,3,5-Trimethylbenzene 91 1,2,4-Trimethylbenzene 100 1,3-Dichlorobenzene 88

Page 17 of 22 Client Sample ID: CCV Lab ID#: 1201330C-10A EPA METHOD TO-17

File Name: 16012306 Date of Extraction: NADate of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/23/12 01:31 PM

Compound %Recovery 1,4-Dichlorobenzene 99 1,2-Dichlorobenzene 99 1,2,4-Trichlorobenzene 96 Hexachlorobutadiene 106 Naphthalene 108 2-Methylnaphthalene 114 1-Methylnaphthalene 107 Acenaphthylene 105 Acenaphthene 105 Fluorene 112 Phenanthrene 107 Anthracene 108 Fluoranthene 115 Pyrene 112

Air Sample Volume(L): 1.00 Q = Exceeds Quality Control limits. Container Type: NA - Not Applicable Method Surrogates %Recovery Limits 1,2-Dichloroethane-d4 92 50-150 Toluene-d8 99 50-150 Naphthalene-d8 103 50-150

Page 18 of 22 Client Sample ID: LCS Lab ID#: 1201330C-11A EPA METHOD TO-17

File Name: 16012303 Date of Extraction: NADate of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/23/12 08:41 AM

Compound %Recovery Freon 114 90 Vinyl Chloride 85 1,3-Butadiene 82 Isopentane 77 Freon 11 92 1,1-Dichloroethene 81 Methylene Chloride 63 Freon 113 84 trans-1,2-Dichloroethene 81 1,1-Dichloroethane 86 cis-1,2-Dichloroethene 78 Hexane 92 Chloroform 85 1,2-Dichloroethane 90 1,1,1-Trichloroethane 91 Benzene 74 Carbon Tetrachloride 90 Cyclohexane 81 1,2-Dichloropropane 79 Trichloroethene 97 1,4-Dioxane 86 2,2,4-Trimethylpentane 83 Heptane 79 Methylcyclohexane 79 1,1,2-Trichloroethane 82 4-Methyl-2-pentanone 85 Toluene 84 2-Hexanone 86 Tetrachloroethene 84 Chlorobenzene 83 Ethyl Benzene 83 m,p-Xylene 82 o-Xylene 86 Styrene 88 1,1,2,2-Tetrachloroethane 74 Cumene 83 Propylbenzene 85 4-Ethyltoluene 88 1,3,5-Trimethylbenzene 92 1,2,4-Trimethylbenzene 102 1,3-Dichlorobenzene 90

Page 19 of 22 Client Sample ID: LCS Lab ID#: 1201330C-11A EPA METHOD TO-17

File Name: 16012303 Date of Extraction: NADate of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/23/12 08:41 AM

Compound %Recovery 1,4-Dichlorobenzene 100 1,2-Dichlorobenzene 102 1,2,4-Trichlorobenzene 105 Hexachlorobutadiene 128 Naphthalene 104 2-Methylnaphthalene 116 1-Methylnaphthalene 107 Acenaphthylene 107 Acenaphthene 100 Fluorene 118 Phenanthrene 115 Anthracene 97 Fluoranthene 130 Pyrene 126

Air Sample Volume(L): 1.00 Container Type: NA - Not Applicable Method Surrogates %Recovery Limits 1,2-Dichloroethane-d4 86 50-150 Toluene-d8 89 50-150 Naphthalene-d8 92 50-150

Page 20 of 22 Client Sample ID: LCSD Lab ID#: 1201330C-11AA EPA METHOD TO-17

File Name: 16012304 Date of Extraction: NADate of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/23/12 09:45 AM

Compound %Recovery Freon 114 87 Vinyl Chloride 84 1,3-Butadiene 83 Isopentane 84 Freon 11 88 1,1-Dichloroethene 84 Methylene Chloride 65 Freon 113 86 trans-1,2-Dichloroethene 84 1,1-Dichloroethane 85 cis-1,2-Dichloroethene 83 Hexane 94 Chloroform 85 1,2-Dichloroethane 85 1,1,1-Trichloroethane 88 Benzene 80 Carbon Tetrachloride 84 Cyclohexane 80 1,2-Dichloropropane 79 Trichloroethene 95 1,4-Dioxane 92 2,2,4-Trimethylpentane 82 Heptane 79 Methylcyclohexane 80 1,1,2-Trichloroethane 82 4-Methyl-2-pentanone 86 Toluene 84 2-Hexanone 85 Tetrachloroethene 85 Chlorobenzene 85 Ethyl Benzene 85 m,p-Xylene 83 o-Xylene 86 Styrene 88 1,1,2,2-Tetrachloroethane 73 Cumene 85 Propylbenzene 86 4-Ethyltoluene 87 1,3,5-Trimethylbenzene 91 1,2,4-Trimethylbenzene 101 1,3-Dichlorobenzene 88

Page 21 of 22 Client Sample ID: LCSD Lab ID#: 1201330C-11AA EPA METHOD TO-17

File Name: 16012304 Date of Extraction: NADate of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/23/12 09:45 AM

Compound %Recovery 1,4-Dichlorobenzene 97 1,2-Dichlorobenzene 100 1,2,4-Trichlorobenzene 105 Hexachlorobutadiene 127 Naphthalene 104 2-Methylnaphthalene 111 1-Methylnaphthalene 104 Acenaphthylene 100 Acenaphthene 92 Fluorene 101 Phenanthrene 102 Anthracene 88 Fluoranthene 112 Pyrene 109

Air Sample Volume(L): 1.00 Container Type: NA - Not Applicable Method Surrogates %Recovery Limits 1,2-Dichloroethane-d4 86 50-150 Toluene-d8 90 50-150 Naphthalene-d8 92 50-150

Page 22 of 22 1/25/2012 Ms. Katie Wynne Arcadis U.S., Inc. 950 Glenn Drive Suite 125 Folsom CA 95630

Project Name: Shell Pond Project #: B0092353.0003.0001d Workorder #: 1201330CR1

Dear Ms. Katie Wynne

The following report includes the data for the above referenced project for sample(s) received on 1/20/2012 at Air Toxics Ltd.

The data and associated QC analyzed by Modified TO-17 VI/TICs are compliant with the project requirements or laboratory criteria with the exception of the deviations noted in the attached case narrative. Thank you for choosing Air Toxics Ltd. for your air analysis needs. Air Toxics Ltd. is committed to providing accurate data of the highest quality. Please feel free to contact the Project Manager: Kyle Vagadori at 916-985-1000 if you have any questions regarding the data in this report.

Regards,

Kyle Vagadori Project Manager

180 BLUE RAVINE ROAD, SUITE B FOLSOM, CA - 95630 (916) 985-1000 .FAX (916) 985-1020 Hours 6:30 A.M to 5:30 PST Page 1 of 24 WORK ORDER #: 1201330CR1

Work Order Summary

FRACTION # NAME TEST 05A SP-A-UP-011912 Modified TO-17 VI/TICs 06A SP-A-DOWN-011912 Modified TO-17 VI/TICs 07A SP-A-FENCE-011912 Modified TO-17 VI/TICs 08A TB-011912 Modified TO-17 VI/TICs 09A Lab Blank Modified TO-17 VI/TICs 10A CCV Modified TO-17 VI/TICs 11A LCS Modified TO-17 VI/TICs 11AA LCSD Modified TO-17 VI/TICs

CERTIFIED BY: DATE: 01/25/12 Laboratory Director Certfication numbers: AZ Licensure AZ0719, CA NELAP - 02110CA, LA NELAP - 02089, NY NELAP - 11291, TX NELAP - T104704434-11-3, UT NELAP -CA009332011-1, WA NELAP - C935 Name of Accrediting Agency: NELAP/Florida Department of Health, Scope of Application: Clean Air Act, Accreditation number: E87680, Effective date: 07/01/11 , Expiration date: 06/30/12. Air Toxics Ltd. certifies that the test results contained in this report meet all requirements of the NELAC standards This report shall not be reproduced, except in full, without the written approval of Air Toxics Ltd. 180 BLUE RAVINE ROAD, SUITE B FOLSOM, CA - 95630 (916) 985-1000 . (800) 985-5955 . FAX (916) 985-1020 Page 2 of 24 LABORATORY NARRATIVE EPA Method TO-17 Arcadis U.S., Inc. Workorder# 1201330CR1

Receiving Notes There were no receiving discrepancies. Analytical Notes A sampling volume of 1.16 L was used to convert ng to ug/m3 for the associated Lab Blank and sample TB-011912.

THE WORKORDER WAS REISSUED ON JANUARY 25, 2012 TO REPORT THE TOP TEN TENTATIVELY IDENTIFIED COMPOUNDS (TICS) PER CLIENT'S REQUEST. Definition of Data Qualifying Flags Eight qualifiers may have been used on the data analysis sheets and indicates as follows: B - Compound present in laboratory blank greater than reporting limit (background subtraction not performed). J - Estimated value. E - Exceeds instrument calibration range. S - Saturated peak. Q - Exceeds quality control limits. U - Compound analyzed for but not detected above the reporting limit. UJ- Non-detected compound associated with low bias in the CCV and/or LCS. N - The identification is based on presumptive evidence.

File extensions may have been used on the data analysis sheets and indicates as follows: a-File was requantified b-File was quantified by a second column and detector

Page 3 of 24 r1-File was requantified for the purpose of reissue

Page 4 of 24 Summary of Detected Compounds EPA METHOD TO-17

Client Sample ID: SP-A-UP-011912 Lab ID#: 1201330CR1-05A Rpt. Limit Rpt. Limit Amount Amount Compound (ng) (ug/m3) (ng) (ug/m3) Isopentane 3.0 2.6 34 30 Freon 11 5.6 4.9 23 20 Freon 113 7.7 6.8 9.7 8.5 Hexane 3.5 3.1 8.8 7.7 Benzene 3.2 2.8 17 15 Carbon Tetrachloride 6.3 5.5 11 9.3 Cyclohexane 3.4 3.0 3.4 3.0 2,2,4-Trimethylpentane 4.7 4.1 6.3 5.5 Heptane 4.1 3.6 7.1 6.2 Toluene 3.8 3.3 26 23 Ethyl Benzene 4.3 3.8 5.6 4.9 m,p-Xylene 4.3 3.8 18 15 o-Xylene 4.3 3.8 6.6 5.8 Naphthalene 1.0 0.88 3.5 3.1 2-Methylnaphthalene 1.0 0.88 1.4 1.2 TENTATIVELY IDENTIFIED COMPOUNDS Amount Compound CAS Number Match Quality (uG/m3) Silane, difluorodimethyl- 353-66-2 30% 13 NJ Pentane, 2-methyl- 107-83-5 78% 7.9 NJ Benzene, 1-chloro-4-(trifluoromethyl)- 98-56-6 98% 5.0 NJ Cyclopentasiloxane, decamethyl- 541-02-6 87% 10 NJ Diethyl phthalate 84-66-2 97% 5.8 NJ Benzenesulfonamide, N-butyl- 3622-84-2 60% 7.2 NJ Disulfide, diphenyl 882-33-7 87% 25 NJ Heptadecane, 2,6,10,15-tetramethyl- 54833-48-6 94% 4.6 NJ Hexadecanoic acid 57-10-3 93% 4.7 NJ 2,6,10,14,18,22-Tetracosahexaene, 2,6,10 111-02-4 93% 23 NJ

Client Sample ID: SP-A-DOWN-011912 Lab ID#: 1201330CR1-06A

Page 5 of 24 Summary of Detected Compounds EPA METHOD TO-17

Client Sample ID: SP-A-DOWN-011912 Lab ID#: 1201330CR1-06A Rpt. Limit Rpt. Limit Amount Amount Compound (ng) (ug/m3) (ng) (ug/m3) Isopentane 3.0 2.6 420 360 Freon 11 5.6 4.8 26 22 Freon 113 7.7 6.6 12 10 Hexane 3.5 3.0 10 8.6 Benzene 3.2 2.8 18 15 Carbon Tetrachloride 6.3 5.4 12 11 Cyclohexane 3.4 2.9 3.7 3.2 2,2,4-Trimethylpentane 4.7 4.0 7.1 6.1 Heptane 4.1 3.5 8.1 7.0 Methylcyclohexane 4.0 3.4 5.4 4.6 Toluene 3.8 3.3 47 40 Ethyl Benzene 4.3 3.7 17 15 m,p-Xylene 4.3 3.7 20 18 o-Xylene 4.3 3.7 8.3 7.2 Styrene 4.2 3.6 38 32 Naphthalene 1.0 0.86 2.8 2.4 2-Methylnaphthalene 1.0 0.86 1.6 1.4 1-Methylnaphthalene 1.0 0.86 4.4 3.8 TENTATIVELY IDENTIFIED COMPOUNDS Amount Compound CAS Number Match Quality (uG/m3) Sulfur dioxide 7446-09-5 78% 140 NJ Cyclopentene 142-29-0 78% 22 NJ 1-Pentene 109-67-1 50% 430 NJ Tetradecanoic acid 544-63-8 98% 25 NJ Pentadecanoic acid 1002-84-2 95% 14 NJ Oxacycloheptadecan-2-one 109-29-5 91% 34 NJ Hexadecanoic acid 57-10-3 93% 86 NJ 9-Octadecenoic acid (Z)- 112-80-1 90% 31 NJ 9-Octadecenamide, (Z)- 301-02-0 52% 18 NJ Hexacosane 630-01-3 98% 8.7 NJ

Page 6 of 24 Summary of Detected Compounds EPA METHOD TO-17

Client Sample ID: SP-A-FENCE-011912 Lab ID#: 1201330CR1-07A Rpt. Limit Rpt. Limit Amount Amount Compound (ng) (ug/m3) (ng) (ug/m3) Isopentane 3.0 2.9 340 320 Freon 11 5.6 5.4 26 25 Freon 113 7.7 7.4 14 13 Hexane 3.5 3.4 13 13 Benzene 3.2 3.1 24 23 Carbon Tetrachloride 6.3 6.0 6.9 6.6 Cyclohexane 3.4 3.3 3.9 3.8 2,2,4-Trimethylpentane 4.7 4.5 8.9 8.6 Heptane 4.1 3.9 10 9.8 Methylcyclohexane 4.0 3.8 5.2 5.0 Toluene 3.8 3.6 56 53 Ethyl Benzene 4.3 4.1 17 16 m,p-Xylene 4.3 4.1 28 26 o-Xylene 4.3 4.1 11 11 Styrene 4.2 4.0 26 25 Naphthalene 1.0 0.96 3.6 3.5 2-Methylnaphthalene 1.0 0.96 2.0 1.9 1-Methylnaphthalene 1.0 0.96 1.3 1.2 TENTATIVELY IDENTIFIED COMPOUNDS Amount Compound CAS Number Match Quality (uG/m3) Cyclopentene 142-29-0 78% 37 NJ 1-Pentene 109-67-1 64% 310 NJ Cyclopentasiloxane, decamethyl- 541-02-6 83% 6.4 NJ Heneicosane 629-94-7 91% 10 NJ Hexadecanoic acid 57-10-3 93% 12 NJ 2,6,10,14,18,22-Tetracosahexaene, 2,6,10 111-02-4 95% 460 NJ Docosane, 11-decyl- 55401-55-3 91% 11 NJ Triacontane 638-68-6 93% 11 NJ Bis(2-ethylhexyl) phthalate 117-81-7 90% 38 NJ Tetratetracontane 7098-22-8 90% 12 NJ

Page 7 of 24 Summary of Detected Compounds EPA METHOD TO-17

Client Sample ID: TB-011912 Lab ID#: 1201330CR1-08A TENTATIVELY IDENTIFIED COMPOUNDS Amount Compound CAS Number Match Quality (uG/m3) Silane, difluorodimethyl- 353-66-2 87% 26 NJ Acetic acid 64-19-7 64% 5.6 NJ Cyclopentasiloxane, decamethyl- 541-02-6 91% 6.3 NJ Tetradecanoic acid 544-63-8 98% 5.5 NJ Hexadecanoic acid 57-10-3 93% 20 NJ 2,6,10,14,18,22-Tetracosahexaene, 2,6,10 111-02-4 93% 6.5 NJ Nonadecane, 9-methyl- 13287-24-6 92% 7.2 NJ Eicosane 112-95-8 95% 6.5 NJ Heneicosane 629-94-7 97% 7.0 NJ Hexacosane 630-01-3 99% 7.4 NJ

Page 8 of 24 Client Sample ID: SP-A-UP-011912 Lab ID#: 1201330CR1-05A EPA METHOD TO-17

File Name: 16012309R1 Date of Extraction: NADate of Collection: 1/19/12 4:47:00 PM Dil. Factor: 1.00 Date of Analysis: 1/23/12 04:47 PM Rpt. Limit Rpt. Limit Amount Amount Compound (ng) (ug/m3) (ng) (ug/m3) Freon 114 7.0 6.1 Not Detected Not Detected Vinyl Chloride 2.6 2.3 Not Detected Not Detected 1,3-Butadiene 2.2 1.9 Not Detected Not Detected Isopentane 3.0 2.6 34 30 Freon 11 5.6 4.9 23 20 1,1-Dichloroethene 4.0 3.5 Not Detected Not Detected Methylene Chloride 21 18 Not Detected UJ Not Detected UJ Freon 113 7.7 6.8 9.7 8.5 trans-1,2-Dichloroethene 4.0 3.5 Not Detected Not Detected 1,1-Dichloroethane 4.0 3.5 Not Detected Not Detected cis-1,2-Dichloroethene 4.0 3.5 Not Detected Not Detected Hexane 3.5 3.1 8.8 7.7 Chloroform 4.9 4.3 Not Detected Not Detected 1,2-Dichloroethane 4.0 3.5 Not Detected Not Detected 1,1,1-Trichloroethane 5.4 4.7 Not Detected Not Detected Benzene 3.2 2.8 17 15 Carbon Tetrachloride 6.3 5.5 11 9.3 Cyclohexane 3.4 3.0 3.4 3.0 1,2-Dichloropropane 4.6 4.0 Not Detected Not Detected Trichloroethene 5.4 4.7 Not Detected Not Detected 1,4-Dioxane 11 9.6 Not Detected Not Detected 2,2,4-Trimethylpentane 4.7 4.1 6.3 5.5 Heptane 4.1 3.6 7.1 6.2 Methylcyclohexane 4.0 3.5 Not Detected Not Detected 1,1,2-Trichloroethane 5.4 4.7 Not Detected Not Detected 4-Methyl-2-pentanone 4.1 3.6 Not Detected Not Detected Toluene 3.8 3.3 26 23 2-Hexanone 4.1 3.6 Not Detected Not Detected Tetrachloroethene 6.8 6.0 Not Detected Not Detected Chlorobenzene 4.6 4.0 Not Detected Not Detected Ethyl Benzene 4.3 3.8 5.6 4.9 m,p-Xylene 4.3 3.8 18 15 o-Xylene 4.3 3.8 6.6 5.8 Styrene 4.2 3.7 Not Detected Not Detected 1,1,2,2-Tetrachloroethane 6.9 6.0 Not Detected Not Detected Cumene 4.9 4.3 Not Detected Not Detected Propylbenzene 4.9 4.3 Not Detected Not Detected 4-Ethyltoluene 4.9 4.3 Not Detected Not Detected 1,3,5-Trimethylbenzene 4.9 4.3 Not Detected Not Detected 1,2,4-Trimethylbenzene 29 25 Not Detected Not Detected 1,3-Dichlorobenzene 6.0 5.3 Not Detected Not Detected

Page 9 of 24 Client Sample ID: SP-A-UP-011912 Lab ID#: 1201330CR1-05A EPA METHOD TO-17

UJ = Non-detected compound associated with low bias in the CCV and/or LCS. TENTATIVELY IDENTIFIED COMPOUNDS Amount Compound CAS Number Match Quality ((uG/m3)) Silane, difluorodimethyl- 353-66-2 30% 13 NJ Pentane, 2-methyl- 107-83-5 78% 7.9 NJ Benzene, 98-56-6 98% 5.0 NJ 1-chloro-4-(trifluoromethyl)- Cyclopentasiloxane, decamethyl- 541-02-6 87% 10 NJ Diethyl phthalate 84-66-2 97% 5.8 NJ Benzenesulfonamide, N-butyl- 3622-84-2 60% 7.2 NJ Disulfide, diphenyl 882-33-7 87% 25 NJ Heptadecane, 54833-48-6 94% 4.6 NJ 2,6,10,15-tetramethyl- Hexadecanoic acid 57-10-3 93% 4.7 NJ 2,6,10,14,18,22-Tetracosahexaene, 111-02-4 93% 23 NJ 2,6,10

Air Sample Volume(L): 1.14 NJ =The identification is based on presumptive evidence; estimated value. Container Type: TO-17 VI Tube Method Surrogates %Recovery Limits 1,2-Dichloroethane-d4 85 50-150 Toluene-d8 97 50-150 Naphthalene-d8 102 50-150

Page 10 of 24 Client Sample ID: SP-A-DOWN-011912 Lab ID#: 1201330CR1-06A EPA METHOD TO-17

File Name: 16012310R1 Date of Extraction: NADate of Collection: 1/19/12 5:10:00 PM Dil. Factor: 1.00 Date of Analysis: 1/23/12 05:25 PM Rpt. Limit Rpt. Limit Amount Amount Compound (ng) (ug/m3) (ng) (ug/m3) Freon 114 7.0 6.0 Not Detected Not Detected Vinyl Chloride 2.6 2.2 Not Detected Not Detected 1,3-Butadiene 2.2 1.9 Not Detected Not Detected Isopentane 3.0 2.6 420 360 Freon 11 5.6 4.8 26 22 1,1-Dichloroethene 4.0 3.4 Not Detected Not Detected Methylene Chloride 21 18 Not Detected UJ Not Detected UJ Freon 113 7.7 6.6 12 10 trans-1,2-Dichloroethene 4.0 3.4 Not Detected Not Detected 1,1-Dichloroethane 4.0 3.4 Not Detected Not Detected cis-1,2-Dichloroethene 4.0 3.4 Not Detected Not Detected Hexane 3.5 3.0 10 8.6 Chloroform 4.9 4.2 Not Detected Not Detected 1,2-Dichloroethane 4.0 3.4 Not Detected Not Detected 1,1,1-Trichloroethane 5.4 4.6 Not Detected Not Detected Benzene 3.2 2.8 18 15 Carbon Tetrachloride 6.3 5.4 12 11 Cyclohexane 3.4 2.9 3.7 3.2 1,2-Dichloropropane 4.6 4.0 Not Detected Not Detected Trichloroethene 5.4 4.6 Not Detected Not Detected 1,4-Dioxane 11 9.5 Not Detected Not Detected 2,2,4-Trimethylpentane 4.7 4.0 7.1 6.1 Heptane 4.1 3.5 8.1 7.0 Methylcyclohexane 4.0 3.4 5.4 4.6 1,1,2-Trichloroethane 5.4 4.6 Not Detected Not Detected 4-Methyl-2-pentanone 4.1 3.5 Not Detected Not Detected Toluene 3.8 3.3 47 40 2-Hexanone 4.1 3.5 Not Detected Not Detected Tetrachloroethene 6.8 5.9 Not Detected Not Detected Chlorobenzene 4.6 4.0 Not Detected Not Detected Ethyl Benzene 4.3 3.7 17 15 m,p-Xylene 4.3 3.7 20 18 o-Xylene 4.3 3.7 8.3 7.2 Styrene 4.2 3.6 38 32 1,1,2,2-Tetrachloroethane 6.9 5.9 Not Detected Not Detected Cumene 4.9 4.2 Not Detected Not Detected Propylbenzene 4.9 4.2 Not Detected Not Detected 4-Ethyltoluene 4.9 4.2 Not Detected Not Detected 1,3,5-Trimethylbenzene 4.9 4.2 Not Detected Not Detected 1,2,4-Trimethylbenzene 29 25 Not Detected Not Detected 1,3-Dichlorobenzene 6.0 5.2 Not Detected Not Detected

Page 11 of 24 Client Sample ID: SP-A-DOWN-011912 Lab ID#: 1201330CR1-06A EPA METHOD TO-17

UJ = Non-detected compound associated with low bias in the CCV and/or LCS. TENTATIVELY IDENTIFIED COMPOUNDS Amount Compound CAS Number Match Quality ((uG/m3)) Sulfur dioxide 7446-09-5 78% 140 NJ Cyclopentene 142-29-0 78% 22 NJ 1-Pentene 109-67-1 50% 430 NJ Tetradecanoic acid 544-63-8 98% 25 NJ Pentadecanoic acid 1002-84-2 95% 14 NJ Oxacycloheptadecan-2-one 109-29-5 91% 34 NJ Hexadecanoic acid 57-10-3 93% 86 NJ 9-Octadecenoic acid (Z)- 112-80-1 90% 31 NJ 9-Octadecenamide, (Z)- 301-02-0 52% 18 NJ Hexacosane 630-01-3 98% 8.7 NJ

Air Sample Volume(L): 1.16 NJ =The identification is based on presumptive evidence; estimated value. Container Type: TO-17 VI Tube Method Surrogates %Recovery Limits 1,2-Dichloroethane-d4 91 50-150 Toluene-d8 102 50-150 Naphthalene-d8 101 50-150

Page 12 of 24 Client Sample ID: SP-A-FENCE-011912 Lab ID#: 1201330CR1-07A EPA METHOD TO-17

File Name: 16012311R1 Date of Extraction: NADate of Collection: 1/19/12 4:47:00 PM Dil. Factor: 1.00 Date of Analysis: 1/23/12 06:38 PM Rpt. Limit Rpt. Limit Amount Amount Compound (ng) (ug/m3) (ng) (ug/m3) Freon 114 7.0 6.7 Not Detected Not Detected Vinyl Chloride 2.6 2.5 Not Detected Not Detected 1,3-Butadiene 2.2 2.1 Not Detected Not Detected Isopentane 3.0 2.9 340 320 Freon 11 5.6 5.4 26 25 1,1-Dichloroethene 4.0 3.8 Not Detected Not Detected Methylene Chloride 21 20 Not Detected UJ Not Detected UJ Freon 113 7.7 7.4 14 13 trans-1,2-Dichloroethene 4.0 3.8 Not Detected Not Detected 1,1-Dichloroethane 4.0 3.8 Not Detected Not Detected cis-1,2-Dichloroethene 4.0 3.8 Not Detected Not Detected Hexane 3.5 3.4 13 13 Chloroform 4.9 4.7 Not Detected Not Detected 1,2-Dichloroethane 4.0 3.8 Not Detected Not Detected 1,1,1-Trichloroethane 5.4 5.2 Not Detected Not Detected Benzene 3.2 3.1 24 23 Carbon Tetrachloride 6.3 6.0 6.9 6.6 Cyclohexane 3.4 3.3 3.9 3.8 1,2-Dichloropropane 4.6 4.4 Not Detected Not Detected Trichloroethene 5.4 5.2 Not Detected Not Detected 1,4-Dioxane 11 10 Not Detected Not Detected 2,2,4-Trimethylpentane 4.7 4.5 8.9 8.6 Heptane 4.1 3.9 10 9.8 Methylcyclohexane 4.0 3.8 5.2 5.0 1,1,2-Trichloroethane 5.4 5.2 Not Detected Not Detected 4-Methyl-2-pentanone 4.1 3.9 Not Detected Not Detected Toluene 3.8 3.6 56 53 2-Hexanone 4.1 3.9 Not Detected Not Detected Tetrachloroethene 6.8 6.5 Not Detected Not Detected Chlorobenzene 4.6 4.4 Not Detected Not Detected Ethyl Benzene 4.3 4.1 17 16 m,p-Xylene 4.3 4.1 28 26 o-Xylene 4.3 4.1 11 11 Styrene 4.2 4.0 26 25 1,1,2,2-Tetrachloroethane 6.9 6.6 Not Detected Not Detected Cumene 4.9 4.7 Not Detected Not Detected Propylbenzene 4.9 4.7 Not Detected Not Detected 4-Ethyltoluene 4.9 4.7 Not Detected Not Detected 1,3,5-Trimethylbenzene 4.9 4.7 Not Detected Not Detected 1,2,4-Trimethylbenzene 29 28 Not Detected Not Detected 1,3-Dichlorobenzene 6.0 5.8 Not Detected Not Detected

Page 13 of 24 Client Sample ID: SP-A-FENCE-011912 Lab ID#: 1201330CR1-07A EPA METHOD TO-17

UJ = Non-detected compound associated with low bias in the CCV and/or LCS. TENTATIVELY IDENTIFIED COMPOUNDS Amount Compound CAS Number Match Quality ((uG/m3)) Cyclopentene 142-29-0 78% 37 NJ 1-Pentene 109-67-1 64% 310 NJ Cyclopentasiloxane, decamethyl- 541-02-6 83% 6.4 NJ Heneicosane 629-94-7 91% 10 NJ Hexadecanoic acid 57-10-3 93% 12 NJ 2,6,10,14,18,22-Tetracosahexaene, 111-02-4 95% 460 NJ 2,6,10 Docosane, 11-decyl- 55401-55-3 91% 11 NJ Triacontane 638-68-6 93% 11 NJ Bis(2-ethylhexyl) phthalate 117-81-7 90% 38 NJ Tetratetracontane 7098-22-8 90% 12 NJ

Air Sample Volume(L): 1.04 NJ =The identification is based on presumptive evidence; estimated value. Container Type: TO-17 VI Tube Method Surrogates %Recovery Limits 1,2-Dichloroethane-d4 74 50-150 Toluene-d8 92 50-150 Naphthalene-d8 93 50-150

Page 14 of 24 Client Sample ID: TB-011912 Lab ID#: 1201330CR1-08A EPA METHOD TO-17

File Name: 16012308R1 Date of Extraction: NADate of Collection: 1/19/12 Dil. Factor: 1.00 Date of Analysis: 1/23/12 04:07 PM Rpt. Limit Rpt. Limit Amount Amount Compound (ng) (ug/m3) (ng) (ug/m3) Freon 114 7.0 6.0 Not Detected Not Detected Vinyl Chloride 2.6 2.2 Not Detected Not Detected 1,3-Butadiene 2.2 1.9 Not Detected Not Detected Isopentane 3.0 2.6 Not Detected Not Detected Freon 11 5.6 4.8 Not Detected Not Detected 1,1-Dichloroethene 4.0 3.4 Not Detected Not Detected Methylene Chloride 21 18 Not Detected UJ Not Detected UJ Freon 113 7.7 6.6 Not Detected Not Detected trans-1,2-Dichloroethene 4.0 3.4 Not Detected Not Detected 1,1-Dichloroethane 4.0 3.4 Not Detected Not Detected cis-1,2-Dichloroethene 4.0 3.4 Not Detected Not Detected Hexane 3.5 3.0 Not Detected Not Detected Chloroform 4.9 4.2 Not Detected Not Detected 1,2-Dichloroethane 4.0 3.4 Not Detected Not Detected 1,1,1-Trichloroethane 5.4 4.6 Not Detected Not Detected Benzene 3.2 2.8 Not Detected Not Detected Carbon Tetrachloride 6.3 5.4 Not Detected Not Detected Cyclohexane 3.4 2.9 Not Detected Not Detected 1,2-Dichloropropane 4.6 4.0 Not Detected Not Detected Trichloroethene 5.4 4.6 Not Detected Not Detected 1,4-Dioxane 11 9.5 Not Detected Not Detected 2,2,4-Trimethylpentane 4.7 4.0 Not Detected Not Detected Heptane 4.1 3.5 Not Detected Not Detected Methylcyclohexane 4.0 3.4 Not Detected Not Detected 1,1,2-Trichloroethane 5.4 4.6 Not Detected Not Detected 4-Methyl-2-pentanone 4.1 3.5 Not Detected Not Detected Toluene 3.8 3.3 Not Detected Not Detected 2-Hexanone 4.1 3.5 Not Detected Not Detected Tetrachloroethene 6.8 5.9 Not Detected Not Detected Chlorobenzene 4.6 4.0 Not Detected Not Detected Ethyl Benzene 4.3 3.7 Not Detected Not Detected m,p-Xylene 4.3 3.7 Not Detected Not Detected o-Xylene 4.3 3.7 Not Detected Not Detected Styrene 4.2 3.6 Not Detected Not Detected 1,1,2,2-Tetrachloroethane 6.9 5.9 Not Detected Not Detected Cumene 4.9 4.2 Not Detected Not Detected Propylbenzene 4.9 4.2 Not Detected Not Detected 4-Ethyltoluene 4.9 4.2 Not Detected Not Detected 1,3,5-Trimethylbenzene 4.9 4.2 Not Detected Not Detected 1,2,4-Trimethylbenzene 29 25 Not Detected Not Detected 1,3-Dichlorobenzene 6.0 5.2 Not Detected Not Detected

Page 15 of 24 Client Sample ID: TB-011912 Lab ID#: 1201330CR1-08A EPA METHOD TO-17

File Name: 16012308R1 Date of Extraction: NADate of Collection: 1/19/12 Dil. Factor: 1.00 Date of Analysis: 1/23/12 04:07 PM Rpt. Limit Rpt. Limit Amount Amount Compound (ng) (ug/m3) (ng) (ug/m3) 1,4-Dichlorobenzene 12 10 Not Detected Not Detected 1,2-Dichlorobenzene 12 10 Not Detected Not Detected 1,2,4-Trichlorobenzene 15 13 Not Detected Not Detected Hexachlorobutadiene 22 19 Not Detected Not Detected Naphthalene 1.0 0.86 Not Detected Not Detected 2-Methylnaphthalene 1.0 0.86 Not Detected Not Detected 1-Methylnaphthalene 1.0 0.86 Not Detected Not Detected Acenaphthylene 5.0 4.3 Not Detected Not Detected Acenaphthene 5.0 4.3 Not Detected Not Detected Fluorene 5.0 4.3 Not Detected Not Detected Phenanthrene 5.0 4.3 Not Detected Not Detected Anthracene 5.0 4.3 Not Detected Not Detected Fluoranthene 5.0 4.3 Not Detected Not Detected Pyrene 5.0 4.3 Not Detected Not Detected

UJ = Non-detected compound associated with low bias in the CCV and/or LCS. TENTATIVELY IDENTIFIED COMPOUNDS Amount Compound CAS Number Match Quality ((uG/m3)) Silane, difluorodimethyl- 353-66-2 87% 26 NJ Acetic acid 64-19-7 64% 5.6 NJ Cyclopentasiloxane, decamethyl- 541-02-6 91% 6.3 NJ Tetradecanoic acid 544-63-8 98% 5.5 NJ Hexadecanoic acid 57-10-3 93% 20 NJ 2,6,10,14,18,22-Tetracosahexaene, 111-02-4 93% 6.5 NJ 2,6,10 Nonadecane, 9-methyl- 13287-24-6 92% 7.2 NJ Eicosane 112-95-8 95% 6.5 NJ Heneicosane 629-94-7 97% 7.0 NJ Hexacosane 630-01-3 99% 7.4 NJ

Air Sample Volume(L): 1.16 NJ =The identification is based on presumptive evidence; estimated value. Container Type: TO-17 VI Tube Method Surrogates %Recovery Limits 1,2-Dichloroethane-d4 92 50-150 Toluene-d8 94 50-150 Naphthalene-d8 92 50-150

Page 16 of 24 Client Sample ID: Lab Blank Lab ID#: 1201330CR1-09A EPA METHOD TO-17

File Name: 16012307R1 Date of Extraction: NADate of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/23/12 02:09 PM Rpt. Limit Rpt. Limit Amount Amount Compound (ng) (ug/m3) (ng) (ug/m3) Freon 114 7.0 6.0 Not Detected Not Detected Vinyl Chloride 2.6 2.2 Not Detected Not Detected 1,3-Butadiene 2.2 1.9 Not Detected Not Detected Isopentane 3.0 2.6 Not Detected Not Detected Freon 11 5.6 4.8 Not Detected Not Detected 1,1-Dichloroethene 4.0 3.4 Not Detected Not Detected Methylene Chloride 21 18 Not Detected UJ Not Detected UJ Freon 113 7.7 6.6 Not Detected Not Detected trans-1,2-Dichloroethene 4.0 3.4 Not Detected Not Detected 1,1-Dichloroethane 4.0 3.4 Not Detected Not Detected cis-1,2-Dichloroethene 4.0 3.4 Not Detected Not Detected Hexane 3.5 3.0 Not Detected Not Detected Chloroform 4.9 4.2 Not Detected Not Detected 1,2-Dichloroethane 4.0 3.4 Not Detected Not Detected 1,1,1-Trichloroethane 5.4 4.6 Not Detected Not Detected Benzene 3.2 2.8 Not Detected Not Detected Carbon Tetrachloride 6.3 5.4 Not Detected Not Detected Cyclohexane 3.4 2.9 Not Detected Not Detected 1,2-Dichloropropane 4.6 4.0 Not Detected Not Detected Trichloroethene 5.4 4.6 Not Detected Not Detected 1,4-Dioxane 11 9.5 Not Detected Not Detected 2,2,4-Trimethylpentane 4.7 4.0 Not Detected Not Detected Heptane 4.1 3.5 Not Detected Not Detected Methylcyclohexane 4.0 3.4 Not Detected Not Detected 1,1,2-Trichloroethane 5.4 4.6 Not Detected Not Detected 4-Methyl-2-pentanone 4.1 3.5 Not Detected Not Detected Toluene 3.8 3.3 Not Detected Not Detected 2-Hexanone 4.1 3.5 Not Detected Not Detected Tetrachloroethene 6.8 5.9 Not Detected Not Detected Chlorobenzene 4.6 4.0 Not Detected Not Detected Ethyl Benzene 4.3 3.7 Not Detected Not Detected m,p-Xylene 4.3 3.7 Not Detected Not Detected o-Xylene 4.3 3.7 Not Detected Not Detected Styrene 4.2 3.6 Not Detected Not Detected 1,1,2,2-Tetrachloroethane 6.9 5.9 Not Detected Not Detected Cumene 4.9 4.2 Not Detected Not Detected Propylbenzene 4.9 4.2 Not Detected Not Detected 4-Ethyltoluene 4.9 4.2 Not Detected Not Detected 1,3,5-Trimethylbenzene 4.9 4.2 Not Detected Not Detected 1,2,4-Trimethylbenzene 29 25 Not Detected Not Detected 1,3-Dichlorobenzene 6.0 5.2 Not Detected Not Detected

Page 17 of 24 Client Sample ID: Lab Blank Lab ID#: 1201330CR1-09A EPA METHOD TO-17

File Name: 16012307R1 Date of Extraction: NADate of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/23/12 02:09 PM Rpt. Limit Rpt. Limit Amount Amount Compound (ng) (ug/m3) (ng) (ug/m3) 1,4-Dichlorobenzene 12 10 Not Detected Not Detected 1,2-Dichlorobenzene 12 10 Not Detected Not Detected 1,2,4-Trichlorobenzene 15 13 Not Detected Not Detected Hexachlorobutadiene 22 19 Not Detected Not Detected Naphthalene 1.0 0.86 Not Detected Not Detected 2-Methylnaphthalene 1.0 0.86 Not Detected Not Detected 1-Methylnaphthalene 1.0 0.86 Not Detected Not Detected Acenaphthylene 5.0 4.3 Not Detected Not Detected Acenaphthene 5.0 4.3 Not Detected Not Detected Fluorene 5.0 4.3 Not Detected Not Detected Phenanthrene 5.0 4.3 Not Detected Not Detected Anthracene 5.0 4.3 Not Detected Not Detected Fluoranthene 5.0 4.3 Not Detected Not Detected Pyrene 5.0 4.3 Not Detected Not Detected

Air Sample Volume(L): 1.16 NJ =The identification is based on presumptive evidence; estimated value. Container Type: NA - Not Applicable Method Surrogates %Recovery Limits 1,2-Dichloroethane-d4 92 50-150 Toluene-d8 97 50-150 Naphthalene-d8 92 50-150

Page 18 of 24 Client Sample ID: CCV Lab ID#: 1201330CR1-10A EPA METHOD TO-17

File Name: 16012306 Date of Extraction: NADate of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/23/12 01:31 PM

Page 19 of 24 Client Sample ID: CCV Lab ID#: 1201330CR1-10A EPA METHOD TO-17

File Name: 16012306 Date of Extraction: NADate of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/23/12 01:31 PM

Page 20 of 24 Client Sample ID: LCS Lab ID#: 1201330CR1-11A EPA METHOD TO-17

File Name: 16012303 Date of Extraction: NADate of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/23/12 08:41 AM

Page 21 of 24 Client Sample ID: LCS Lab ID#: 1201330CR1-11A EPA METHOD TO-17

File Name: 16012303 Date of Extraction: NADate of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/23/12 08:41 AM

Air Sample Volume(L): 1.00 Container Type: NA - Not Applicable Method Surrogates %Recovery Limits 1,2-Dichloroethane-d4 86 50-150 Toluene-d8 89 50-150 Naphthalene-d8 92 50-150

Page 22 of 24 Client Sample ID: LCSD Lab ID#: 1201330CR1-11AA EPA METHOD TO-17

File Name: 16012304 Date of Extraction: NADate of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/23/12 09:45 AM

Page 23 of 24 Client Sample ID: LCSD Lab ID#: 1201330CR1-11AA EPA METHOD TO-17

File Name: 16012304 Date of Extraction: NADate of Collection: NA Dil. Factor: 1.00 Date of Analysis: 1/23/12 09:45 AM

Air Sample Volume(L): 1.00 Container Type: NA - Not Applicable Method Surrogates %Recovery Limits 1,2-Dichloroethane-d4 86 50-150 Toluene-d8 90 50-150 Naphthalene-d8 92 50-150

Page 24 of 24 COLUMBIA ANALYTICAL SERVICES, INC.

RESULTS OF ANALYSIS Page 1 of 4 Client: ARCADIS U.S., Inc. Client Sample ID: SP-A-BAG-012512 CAS Project ID: P1200272 Client Project ID: PG&E Shell Pond / B0092353 CAS Sample ID: P1200272-005

Test Code: EPA TO-15 Date Collected: 1/25/12 Instrument ID: Tekmar AUTOCAN/Agilent 5973inert/6890N/MS8 Date Received: 1/26/12 Analyst: Elsa Moctezuma Date Analyzed: 1/27/12 Sampling Media: 6.0 L Summa Canister Volume(s) Analyzed: 1.00 Liter(s) Test Notes: Container ID: AC01289

Initial Pressure (psig): 0.50 Final Pressure (psig): 3.78

Canister Dilution Factor: 1.22

CAS # Compound Result MRL MDL Result MRL MDL Data µg/m! µg/m! µg/m! ppbV ppbV ppbV Qualifier 115-07-1 Propene 4.9 0.610.122.8 0.35 0.070 75-71-8 Dichlorodifluoromethane (CFC 12) 2.0 0.610.150.41 0.12 0.030 74-87-3 Chloromethane 0.28 0.240.120.14 0.12 0.058 1,2-Dichloro-1,1,2,2- 76-14-2 ND 0.61 0.16 ND 0.087 tetrafluoroethane (CFC 114) 0.023 75-01-4 Vinyl Chloride ND 0.12 0.11 ND 0.048 0.042 106-99-0 1,3-Butadiene ND 0.24 0.13 ND 0.11 0.061 74-83-9 Bromomethane ND0.120.089 ND 0.031 0.023 75-00-3 Chloroethane ND 0.12 0.11 ND 0.046 0.041 64-17-5 Ethanol 3.3 6.12.01.8 3.2 1.0 J 75-05-8 Acetonitrile 4.7 0.610.212.8 0.360.12 107-02-8 Acrolein 0.86 2.40.230.38 1.1 0.10 J 67-64-1 Acetone 120 6.11.151 2.6 0.45 75-69-4 Trichlorofluoromethane 0.18 0.120.0940.031 0.022 0.017 67-63-0 2-Propanol (Isopropyl Alcohol) 2.4 1.20.490.99 0.50 0.20 107-13-1 Acrylonitrile 0.34 0.61 0.21 0.16 0.28 0.096 J 75-35-4 1,1-Dichloroethene ND 0.12 0.089 ND 0.031 0.022 75-09-2 Methylene Chloride 4.5 0.610.151.3 0.18 0.042 B 107-05-1 3-Chloro-1-propene (Allyl Chloride) ND 0.12 0.11 ND 0.039 0.035 76-13-1 Trichlorotrifluoroethane ND 0.12 0.11 ND 0.016 0.015 75-15-0 Carbon Disulfide 6.6 6.10.182.1 2.0 0.059 156-60-5 trans-1,2-Dichloroethene ND 0.12 0.099 ND 0.031 0.025 75-34-3 1,1-Dichloroethane ND 0.12 0.095 ND 0.030 0.024 1634-04-4 Methyl tert-Butyl Ether ND 0.12 0.11 ND 0.034 0.030 108-05-4 Vinyl Acetate 3.7 6.10.711.0 1.7 0.20 J 78-93-3 2-Butanone (MEK) 32 6.10.2811 2.1 0.095

ND = Compound was analyzed for, but not detected above the laboratory detection limit. MRL = Method Reporting Limit - The minimum quantity of a target analyte that can be confidently determined by the referenced method. J = The result is an estimated concentration that is less than the MRL but greater than or equal to the MDL. B = Analyte detected in both the sample and associated method blank.

Verified By:______Date:______6. P1200272_TO15.xls - Sample (5) TO15SCAN.XLS - 75 Compounds - PageNo.: COLUMBIA ANALYTICAL SERVICES, INC.

RESULTS OF ANALYSIS Page 2 of 4 Client: ARCADIS U.S., Inc. Client Sample ID: SP-A-BAG-012512 CAS Project ID: P1200272 Client Project ID: PG&E Shell Pond / B0092353 CAS Sample ID: P1200272-005

Initial Pressure (psig): 0.50 Final Pressure (psig): 3.78

Canister Dilution Factor: 1.22

CAS # Compound Result MRL MDL Result MRL MDL Data µg/m! µg/m! µg/m! ppbV ppbV ppbV Qualifier 156-59-2 cis-1,2-Dichloroethene ND 0.12 0.11 ND 0.031 0.028 141-78-6 Ethyl Acetate 0.67 1.20.350.19 0.34 0.098 J 110-54-3 n-Hexane 0.49 0.610.150.14 0.17 0.042 J 67-66-3 Chloroform ND 0.12 0.094 ND 0.025 0.019 109-99-9 Tetrahydrofuran (THF) ND 0.61 0.27 ND 0.21 0.091 107-06-2 1,2-Dichloroethane ND 0.12 0.099 ND 0.030 0.024 71-55-6 1,1,1-Trichloroethane ND 0.12 0.11 ND 0.022 0.020 71-43 -2 Benzene 0170.17 0120.12 0110.11 00530.053 00380.038 00360.036 56-23-5 Carbon Tetrachloride ND 0.12 0.096 ND 0.019 0.015 110-82-7 Cyclohexane ND 1.2 0.31 ND 0.35 0.089 78-87-5 1,2-Dichloropropane ND 0.12 0.090 ND 0.026 0.020 75-27-4 Bromodichloromethane ND 0.12 0.093 ND 0.018 0.014 79-01-6 Trichloroethene ND 0.12 0.083 ND 0.023 0.015 123-91-1 1,4-Dioxane ND 0.61 0.16 ND 0.17 0.044 80-62-6 Methyl Methacrylate ND 1.2 0.34 ND 0.30 0.083 142-82-5 n-Heptane 2.0 0.610.170.49 0.15 0.042 10061-01-5 cis-1,3-Dichloropropene ND 0.61 0.16 ND 0.13 0.035 108-10-1 4-Methyl-2-pentanone 1.9 0.610.150.46 0.15 0.036 10061-02-6 trans-1,3-Dichloropropene ND 0.61 0.17 ND 0.13 0.038 79-00-5 1,1,2-Trichloroethane ND 0.12 0.084 ND 0.022 0.015 108-88-3 Toluene 0.35 0.610.160.093 0.16 0.042 J 591-78-6 2-Hexanone ND 0.61 0.16 ND 0.15 0.039 124-48-1 Dibromochloromethane ND 0.12 0.084 ND 0.014 0.0099 106-93-4 1,2-Dibromoethane ND 0.12 0.085 ND 0.016 0.011 123-86-4 n-Butyl Acetate ND 0.61 0.15 ND 0.13 0.031

Verified By:______Date:______6. P1200272_TO15.xls - Sample (5) TO15SCAN.XLS - 75 Compounds - PageNo.: COLUMBIA ANALYTICAL SERVICES, INC.

RESULTS OF ANALYSIS Page 3 of 4 Client: ARCADIS U.S., Inc. CAS Project ID: P1200272 Client Sample ID: SP-A-BAG-012512 CAS Sample ID: P1200272-005 Client Project ID: PG&E Shell Pond / B0092353

Initial Pressure (psig): 0.50 Final Pressure (psig): 3.78

Canister Dilution Factor: 1.22

Result MRL MDL Result MRL MDL Data CAS # Compound µg/m! µg/m! µg/m! ppbV ppbV ppbV Qualifier 111-65-9 n-Octane 4.9 0.610.181.1 0.13 0.039 127-18-4 Tetrachloroethene ND 0.12 0.095 ND 0.018 0.014 108-90-7 Chlorobenzene ND 0.12 0.076 ND 0.027 0.016 100-41-4 Ethylbenzene 0.54 0.610.150.12 0.14 0.034 J 179601-23-1 m,p-Xylenes 1.0 0.610.310.23 0.14 0.070 75-25-2 Bromoform ND 0.61 0.17 ND 0.059 0.017 100-42-5 Styrene ND 0.61 0.17 ND 0.14 0.040 95-47-6 o-Xylene 0.59 0.61 0.16 0.14 0.14 0.037 J 111-84-2 n-Nonane 5.1 0.610.160.97 0.12 0.030 79-34-5 1,1,2,2-Tetrachloroethane ND 0.12 0.092 ND 0.018 0.013 98-82-8 Cumene ND 0.61 0.16 ND 0.12 0.032 80-56-8 alpha-Pinene 1.6 0.610.130.29 0.11 0.024 103-65-1 n-Propylbenzene ND 0.61 0.16 ND 0.12 0.032 622-96-8 4-Ethyltoluene 0.42 0.610.180.085 0.12 0.037 J 108-67-8 1,3,5-Trimethylbenzene 0.57 0.610.170.12 0.12 0.035 J 95-63-6 1,2,4-Trimethylbenzene 1.3 0.610.160.27 0.12 0.032 100-44-7 Benzyl Chloride ND 0.61 0.18 ND 0.12 0.035 541-73-1 1,3-Dichlorobenzene ND 0.12 0.095 ND 0.020 0.016 106-46-7 1,4-Dichlorobenzene ND 0.12 0.10 ND 0.020 0.017 95-50-1 1,2-Dichlorobenzene ND 0.12 0.098 ND 0.020 0.016 5989-27-5 d-Limonene ND 0.61 0.17 ND 0.11 0.031 96-12-8 1,2-Dibromo-3-chloropropane ND 0.61 0.16 ND 0.063 0.016 120-82-1 1,2,4-Trichlorobenzene ND 0.61 0.29 ND 0.082 0.039 91-20-3 Naphthalene ND 0.61 0.35 ND 0.12 0.068 87-68-3 Hexachlorobutadiene ND 0.61 0.22 ND 0.057 0.021

Verified By:______Date:______6. P1200272_TO15.xls - Sample (5) TO15SCAN.XLS - 75 Compounds - PageNo.: COLUMBIA ANALYTICAL SERVICES, INC.

RESULTS OF ANALYSIS Page 4 of 4 Client: ARCADIS U.S., Inc. Client Sample ID: SP-A-BAG-012512 CAS Project ID: P1200272 Client Project ID: PG&E Shell Pond / B0092353 CAS Sample ID: P1200272-005 Tentatively Identified Compounds Test Code: EPA TO-15 Date Collected: 1/25/12 Instrument ID: Tekmar AUTOCAN/Agilent 5973inert/6890N/MS8 Date Received: 1/26/12 Analyst: Elsa Moctezuma Date Analyzed: 1/27/12 Sampling Media: 6.0 L Summa Canister Volume(s) Analyzed: 1.00 Liter(s) Test Notes: T Container ID: AC01289

Initial Pressure (psig): 0.50 Final Pressure (psig): 3.78

Canister Dilution Factor: 1.22

GC/MS Compound Identification Concentration Data Retention Time µg/m! Qualifier 24.11 C10H22 Branched Alkane 96 24.82 C10H20 Compound 110 25.29 Unidentified Compound 68 25.46 C12H24 Compound 300 25.59 C12H24 Compound 230 25.70 4-Methyldecane 150 26.08 Unidentified Compound 60 26.40 Unidentified Compound 70 26.47 Unidentified Compound 65 26.53 Decahydronaphthalene Isomer 68 26.72 Unidentified Compound 79 28.16 Unidentified Compound 73 28.22 C13H28 Branched Alkane 75 28.85 Unidentified Compound 64 29.82 Unidentified Compound 72 Sulfur Dioxide NF

T = Analyte is a tentatively identified compound, result is estimated. NF = Compound was searched for, but not found.

Verified By:______Date:______6. P1200272_TO15.xls - TIC (5) TO15SCAN.XLS - 75 Compounds - PageNo.: COLUMBIA ANALYTICAL SERVICES, INC.

RESULTS OF ANALYSIS Page 1 of 4

Client: ARCADIS U.S., Inc. Client Sample ID: Method Blank CAS Project ID: P1200272 Client Project ID: PG&E Shell Pond / B0092353 CAS Sample ID: P120127-MB

Test Code: EPA TO-15 Date Collected: NA Instrument ID: Tekmar AUTOCAN/Agilent 5973inert/6890N/MS8 Date Received: NA Analyst: Elsa Moctezuma Date Analyzed: 1/27/12 Sampling Media: 6.0 L Summa Canister Volume(s) Analyzed: 1.00 Liter(s) Test Notes:

Canister Dilution Factor: 1.00

CAS # Compound Result MRL MDL Result MRL MDL Data µg/m! µg/m! µg/m! ppbV ppbV ppbV Qualifier 115-07-1 Propene ND 0.50 0.099 ND 0.29 0.058 75-71-8 Dichlorodifluoromethane (CFC 12) ND 0.50 0.12 ND 0.10 0.024 74-87-3 Chloromethane ND 0.20 0.098 ND 0.097 0.047 1,2-Dichloro-1,1,2,2- 76-14-2 ND 0.50 0.13 ND 0.072 tetrafluoroethane (CFC 114) 0.019 75-01-4 Vinyl Chloride ND 0.10 0.088 ND 0.039 0.034 106-99-0 1,3-Butadiene ND 0.20 0.11 ND 0.090 0.050 74-83-9 Bromomethane ND0.100.073 ND 0.026 0.019 75-00-3 Chloroethane ND 0.10 0.088 ND 0.038 0.033 64-17-5 Ethanol ND 5.0 1.6 ND 2.7 0.85 75-05-8 Acetonitrile ND 0.50 0.17 ND 0.30 0.10 107-02-8 Acrolein ND 2.0 0.19 ND 0.87 0.083 67-64-1 Acetone ND 5.0 0.88 ND 2.1 0.37 75-69-4 Trichlorofluoromethane ND 0.10 0.077 ND 0.018 0.014 67-63-0 2-Propanol (Isopropyl Alcohol) ND 1.0 0.40 ND 0.41 0.16 107-13-1 Acrylonitrile ND 0.50 0.17 ND 0.23 0.078 75-35-4 1,1-Dichloroethene ND 0.10 0.073 ND 0.025 0.018 75-09-2 Methylene Chloride 0.19 0.500.120.053 0.14 0.035 J 107-05-1 3-Chloro-1-propene (Allyl Chloride) ND 0.10 0.091 ND 0.032 0.029 76-13-1 Trichlorotrifluoroethane ND 0.10 0.092 ND 0.013 0.012 75-15-0 Carbon Disulfide ND 5.0 0.15 ND 1.6 0.048 156-60-5 trans-1,2-Dichloroethene ND 0.10 0.081 ND 0.025 0.020 75-34-3 1,1-Dichloroethane ND 0.10 0.078 ND 0.025 0.019 1634-04-4 Methyl tert-Butyl Ether ND 0.10 0.090 ND 0.028 0.025 108-05-4 Vinyl Acetate ND 5.0 0.58 ND 1.4 0.16 78-93-3 2-Butanone (MEK) ND 5.0 0.23 ND 1.7 0.078

Verified By:______Date:______6. P1200272_TO15.xls - MBlank TO15SCAN.XLS - 75 Compounds - PageNo.: COLUMBIA ANALYTICAL SERVICES, INC.

RESULTS OF ANALYSIS Page 2 of 4

Client: ARCADIS U.S., Inc. Client Sample ID: Method Blank CAS Project ID: P1200272 Client Project ID: PG&E Shell Pond / B0092353 CAS Sample ID: P120127-MB

Test Code: EPA TO-15 Date Collected: NA Instrument ID: Tekmar AUTOCAN/Agilent 5973inert/6890N/MS8 Date Received: NA Analyst: Elsa Moctezuma Date Analyzed:1/27/12 Sampling Media: 6.0 L Summa Canister Volume(s) Analyzed: 1.00 Liter(s) Test Notes:

Canister Dilution Factor: 1.00

CAS # Compound Result MRL MDL Result MRL MDL Data µg/m! µg/m! µg/m! ppbV ppbV ppbV Qualifier 156-59-2 cis-1,2-Dichloroethene ND 0.10 0.091 ND 0.025 0.023 141-78-6 Ethyl Acetate ND 1.0 0.29 ND 0.28 0.081 110-54-3 n-Hexane ND 0.50 0.12 ND 0.14 0.034 67-66-3 Chloroform ND 0.10 0.077 ND 0.020 0.016 109-99-9 Tetrahydrofuran (THF) ND 0.50 0.22 ND 0.17 0.075 107-06-2 1,2-Dichloroethane ND 0.10 0.081 ND 0.025 0.020 71-55-6 1,1,1-Trichloroethane ND 0.10 0.090 ND 0.018 0.017 714321-43-2 Benzene ND 0100.10 00940.094 ND 00310.031 00290.029 56-23-5 Carbon Tetrachloride ND 0.10 0.079 ND 0.016 0.013 110-82-7 Cyclohexane ND 1.0 0.25 ND 0.29 0.073 78-87-5 1,2-Dichloropropane ND 0.10 0.074 ND 0.022 0.016 75-27-4 Bromodichloromethane ND 0.10 0.076 ND 0.015 0.011 79-01-6 Trichloroethene ND 0.10 0.068 ND 0.019 0.013 123-91-1 1,4-Dioxane ND 0.50 0.13 ND 0.14 0.036 80-62-6 Methyl Methacrylate ND 1.0 0.28 ND 0.24 0.068 142-82-5 n-Heptane ND 0.50 0.14 ND 0.12 0.034 10061-01-5 cis-1,3-Dichloropropene ND 0.50 0.13 ND 0.11 0.029 108-10-1 4-Methyl-2-pentanone ND 0.50 0.12 ND 0.12 0.029 10061-02-6 trans-1,3-Dichloropropene ND 0.50 0.14 ND 0.11 0.031 79-00-5 1,1,2-Trichloroethane ND 0.10 0.069 ND 0.018 0.013 108-88-3 Toluene ND 0.50 0.13 ND 0.13 0.035 591-78-6 2-Hexanone ND 0.50 0.13 ND 0.12 0.032 124-48-1 Dibromochloromethane ND 0.10 0.069 ND 0.012 0.0081 106-93-4 1,2-Dibromoethane ND 0.10 0.070 ND 0.013 0.0091 123-86-4 n-Butyl Acetate ND 0.50 0.12 ND 0.11 0.025

Verified By:______Date:______6. P1200272_TO15.xls - MBlank TO15SCAN.XLS - 75 Compounds - PageNo.: COLUMBIA ANALYTICAL SERVICES, INC.

RESULTS OF ANALYSIS Page 3 of 4

Client: ARCADIS U.S., Inc. CAS Project ID: P1200272 Client Sample ID: Method Blank CAS Sample ID: P120127-MB Client Project ID: PG&E Shell Pond / B0092353

Test Code: EPA TO-15 Date Collected: NA Instrument ID: Tekmar AUTOCAN/Agilent 5973inert/6890N/MS8 Date Received: NA Analyst: Elsa Moctezuma Date Analyzed:1/27/12 Sampling Media: 6.0 L Summa Canister Volume(s) Analyzed: 1.00 Liter(s) Test Notes:

Canister Dilution Factor: 1.00

Result MRL MDL Result MRL MDL Data CAS # Compound µg/m! µg/m! µg/m! ppbV ppbV ppbV Qualifier 111-65-9 n-Octane ND 0.50 0.15 ND 0.11 0.032 127-18-4 Tetrachloroethene ND 0.10 0.078 ND 0.015 0.012 108-90-7 Chlorobenzene ND 0.10 0.062 ND 0.022 0.013 100-41-4 Ethylbenzene ND 0.50 0.12 ND 0.12 0.028 179601-23-1 m,p-Xylenes ND 0.50 0.25 ND 0.12 0.058 75-25-2 Bromoform ND 0.50 0.14 ND 0.048 0.014 100-42-5 Styrene ND0.500.14 ND 0.12 0.033 95-47-6 o-Xylene ND 0.50 0.13 ND 0.12 0.030 111-84-2 n-Nonane ND 0.50 0.13 ND 0.095 0.025 79-34-5 1,1,2,2-Tetrachloroethane ND 0.10 0.075 ND 0.015 0.011 98-82-8 Cumene ND 0.50 0.13 ND 0.10 0.026 80-56-8 alpha-Pinene ND 0.50 0.11 ND 0.090 0.020 103-65-1 n-Propylbenzene ND 0.50 0.13 ND 0.10 0.026 622-96-8 4-Ethyltoluene ND 0.50 0.15 ND 0.10 0.031 108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.14 ND 0.10 0.028 95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.13 ND 0.10 0.026 100-44-7 Benzyl Chloride ND 0.50 0.15 ND 0.097 0.029 541-73-1 1,3-Dichlorobenzene ND 0.10 0.078 ND 0.017 0.013 106-46-7 1,4-Dichlorobenzene ND 0.10 0.086 ND 0.017 0.014 95-50-1 1,2-Dichlorobenzene ND 0.10 0.080 ND 0.017 0.013 5989-27-5 d-Limonene ND 0.50 0.14 ND 0.090 0.025 96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ND 0.052 0.013 120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.24 ND 0.067 0.032 91-20-3 Naphthalene ND 0.50 0.29 ND 0.095 0.055 87-68-3 Hexachlorobutadiene ND 0.50 0.18 ND 0.047 0.017

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RESULTS OF ANALYSIS Page 4 of 4

Client: ARCADIS U.S., Inc. Client Sample ID: Method Blank CAS Project ID: P1200272 Client Project ID: PG&E Shell Pond / B0092353 CAS Sample ID: P120127-MB Tentatively Identified Compounds Test Code: EPA TO-15 Date Collected: NA Instrument ID: Tekmar AUTOCAN/Agilent 5973inert/6890N/MS8 Date Received: NA Analyst: Elsa Moctezuma Date Analyzed: 1/27/12 Sampling Media: 6.0 L Summa Canister Volume(s) Analyzed: 1.00 Liter(s) Test Notes:

Canister Dilution Factor: 1.00

GC/MS Compound Identification Concentration Data Retention Time µg/m! Qualifier Sulfur Dioxide NF

NF = Compound was searched for, but not found.

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SURROGATE SPIKE RECOVERY RESULTS Page 1 of 1

Client: ARCADIS U.S., Inc. Client Project ID: PG&E Shell Pond / B0092353 CAS Project ID: P1200272

Test Code: EPA TO-15 Instrument ID: Tekmar AUTOCAN/Agilent 5973inert/6890N/MS8 Date(s) Collected: 1/25/12 Analyst: Elsa Moctezuma Date(s) Received: 1/26/12 Sampling Media: 6.0 L Summa Canister(s) Date(s) Analyzed: 1/27/12 Test Notes:

1,2-Dichloroethane-d4 Toluene-d8 Bromofluorobenzene Client Sample ID CAS Sample ID Percent Percent Percent Acceptance Data Recovered Recovered Recovered Limits Qualifier Method Blank P120127-MB 103 97 106 70-130 Lab Control Sample P120127-LCS 103 98 105 70-130 SP-A-BAG-012512 P1200272-005 103 94 104 70-130 SP-A-BAG-012512 P1200272-005DUP 102 96 104 70-130

Surrogate percent recovery is verified and accepted based on the on-column result. Reported results are shown in concentration units and as a result of the calculation, may vary slightly from the on-column percent recovery.

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LABORATORY CONTROL SAMPLE SUMMARY Page 1 of 3

Client: ARCADIS U.S., Inc. Client Sample ID: Lab Control Sample CAS Project ID: P1200272 Client Project ID: PG&E Shell Pond / B0092353 CAS Sample ID: P120127-LCS

CAS CAS # Compound Spike Amount Result % Recovery Acceptance Data µg/m! µg/m! Limits Qualifier 115-07-1 Propene 198 191 96 59-137 75-71-8 Dichlorodifluoromethane (CFC 12) 196 170 87 63-115 74-87-3 Chloromethane 190 159 84 59-124 1,2-Dichloro-1,1,2,2- 76-14-2 85 65-113 tetrafluoroethane (CFC 114) 200 169 75-01-4 Vinyl Chloride 194 170 88 59-121 106-99-0 1,3-Butadiene 204 201 99 60-138 74-83-9 Bromomethane 194 172 89 69-129 75-00-3 Chloroethane 196 174 89 60-120 64-17-5 Ethanol 928 830 89 58-121 75-05-8 Acetonitrile 194 191 98 64-129 107-02-8 Acrolein 198 177 89 54-127 67-64-1 Acetone 1,010 883 87 59-114 75-69-4 Trichlorofluoromethane 202 172 85 66-108 67-63-0 2-Propanol (Isopropyl Alcohol) 382 337 88 50-113 107-13-1 Acrylonitrile 198 193 97 72-135 75-35-4 1,1-Dichloroethene 212 193 91 70-117 75-09-2 Methylene Chloride 206 180 87 61-108 107-05-1 3-Chloro-1-propene (Allyl Chloride) 208 210 101 70-131 76-13-1 Trichlorotrifluoroethane 206 187 91 70-113 75-15-0 Carbon Disulfide 208 182 88 65-112 156-60-5 trans-1,2-Dichloroethene 196 181 92 71-119 75-34-3 1,1-Dichloroethane 200 184 92 71-116 1634-04-4 Methyl tert-Butyl Ether 198 188 95 67-116 108-05-4 Vinyl Acetate 952 960 101 59-142 78-93-3 2-Butanone (MEK) 206 198 96 68-125

Laboratory Control Sample percent recovery is verified and accepted based on the on-column result. Reported results are shown in concentration units and as a result of the calculation, may vary slightly.

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LABORATORY CONTROL SAMPLE SUMMARY Page 2 of 3

Client: ARCADIS U.S., Inc. Client Sample ID: Lab Control Sample CAS Project ID: P1200272 Client Project ID: PG&E Shell Pond / B0092353 CAS Sample ID: P120127-LCS

CAS CAS # Compound Spike Amount Result % Recovery Acceptance Data µg/m! µg/m! LimitsQualifier 156-59-2 cis-1,2-Dichloroethene 206 188 91 69-119 141-78-6 Ethyl Acetate 398 378 95 63-130 110-54-3 n-Hexane 198 180 91 57-120 67-66-3 Chloroform 214 185 86 69-111 109-99-9 Tetrahydrofuran (THF) 202 182 90 57-123 107-06-2 1,2-Dichloroethane 200 183 92 70-118 71-55-6 1,1,1-Trichloroethane 198 176 89 73-119 71-43-2 Benzene 198 177 89 66-121 56-23-5 Carbon Tetrachloride 202 187 93 74-129 110-82-7 Cyclohexane 390 339 87 70-113 78-87-5 1,2-Dichloropropane 198 174 88 69-118 75-27-4 Bromodichloromethane 198 179 90 75-124 79-01-6 Trichloroethene 194 165 85 73-115 123-91-1 1,4-Dioxane 200 178 89 71-123 80-62-6 Methyl Methacrylate 400 377 94 72-127 142-82-5 n-Heptane 196 176 90 68-120 10061-01-5 cis-1,3-Dichloropropene 188 176 94 71-130 108-10-1 4-Methyl-2-pentanone 204 194 95 69-130 10061-02-6 trans-1,3-Dichloropropene 210 203 97 76-133 79-00-5 1,1,2-Trichloroethane 196 176 90 73-120 108-88-3 Toluene 202 162 80 67-111 591-78-6 2-Hexanone 222 195 88 70-123 124-48-1 Dibromochloromethane 206 182 88 75-129 106-93-4 1,2-Dibromoethane 200 167 84 73-122 123-86-4 n-Butyl Acetate 220 192 87 68-132

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LABORATORY CONTROL SAMPLE SUMMARY Page 3 of 3

Client: ARCADIS U.S., Inc. Client Sample ID: Lab Control Sample CAS Project ID: P1200272 Client Project ID: PG&E Shell Pond / B0092353 CAS Sample ID: P120127-LCS

CAS CAS # Compound Spike Amount Result % Recovery Acceptance Data µg/m! µg/m! Limits Qualifier 111-65-9 n-Octane 200 172 86 68-116 127-18-4 Tetrachloroethene 184 144 78 67-119 108-90-7 Chlorobenzene 202 159 79 69-113 100-41-4 Ethylbenzene 198 161 81 71-117 179601-23-1 m,p-Xylenes 392 322 82 70-116 75-25-2 Bromoform 208 174 84 69-127 100-42-5 Styrene 200 170 85 71-125 95-47-6 o-Xylene 194 158 81 70-116 111-84-2 n-Nonane 196 164 84 68-116 79-34-5 1,1,2,2-Tetrachloroethane 192 156 81 70-119 98-82-8 Cumene 190 150 79 70-116 80-56-8 alpha-Pinene 186 160 86 71-119 103-65-1 n-Propylbenzene 192 154 80 71-119 622-96-8 4-Ethyltoluene 198 160 81 71-119 108-67-8 1,3,5-Trimethylbenzene 200 163 82 71-121 95-63-6 1,2,4-Trimethylbenzene 194 164 85 73-127 100-44-7 Benzyl Chloride 200 179 90 65-137 541-73-1 1,3-Dichlorobenzene 200 150 75 68-123 106-46-7 1,4-Dichlorobenzene 206 148 72 65-120 95-50-1 1,2-Dichlorobenzene 198 150 76 67-121 5989-27-5 d-Limonene 200 183 92 67-130 96-12-8 1,2-Dibromo-3-chloropropane 196 170 87 72-133 120-82-1 1,2,4-Trichlorobenzene 196 158 81 62-133 91-20-3 Naphthalene 172 143 83 56-138 87-68-3 Hexachlorobutadiene 202 160 79 60-128

Verified By:______Date:______6. P1200272_TO15.xls - LCS TO15SCAN.XLS - 75 Compounds - PageNo.: COLUMBIA ANALYTICAL SERVICES, INC.

LABORATORY DUPLICATE SUMMARY RESULTS Page 1 of 3 Client: ARCADIS U.S., Inc. Client Sample ID: SP-A-BAG-012512 CAS Project ID: P1200272 Client Project ID: PG&E Shell Pond / B0092353 CAS Sample ID: P1200272-005DUP

Initial Pressure (psig): 0.50 Final Pressure (psig): 3.78

Canister Dilution Factor: 1.22 Duplicate Compound Sample Result Sample Result Average % RPD RPD Data µg/m! ppbV µg/m! ppbV µg/m! LimitQualifier Propene 4.89 2.84 4.73 2.75 4.81 325 Dichlorodifluoromethane (CFC 12) 2.00 0.405 1.90 0.385 1.95 525 Chloromethane 0.281 0.136 0.228 0.111 0.2545 21 25 J 1,2-Dichloro-1,1,2,2-tetrafluoroethane (CFC 114) ND ND ND ND - -25 Vinyl Chloride ND ND ND ND - -25 1,3-Butadiene ND ND ND ND - -25 Bromomethane ND ND ND ND - -25 Chloroethane ND ND ND ND - -25 Ethanol 3.31 1.76 3.28 1.74 3.295 0.9 25 J Acetonitrile 4.70 2.80 4.77 2.84 4.735 125 Acrolein 0.863 0.376 0.855 0.373 0.859 0.9 25 J Acetone 122 51.5 123 51.8 122.5 0.8 25 Trichlorofluoromethane 0.176 0.0313 0.187 0.0332 0.1815 625 2-Propanol (Isopropyl Alcohol) 2.43 0.989 2.51 1.02 2.47 325 Acrylonitrile 0.339 0.156 0.326 0.150 0.3325 425 J 1,1-Dichloroethene ND ND ND ND - -25 Methylene Chloride 4.46 1.29 4.40 1.27 4.43 125 B 3-Chloro-1-propene (Allyl Chloride) ND ND ND ND - -25 Trichlorotrifluoroethane ND ND ND ND - -25 Carbon Disulfide 6.60 2.12 6.59 2.12 6.595 0.2 25 trans-1,2-Dichloroethene ND ND ND ND - -25 1,1-Dichloroethane ND ND ND ND - -25 Methyl tert-Butyl Ether ND ND ND ND - -25 Vinyl Acetate 3.65 1.04 3.66 1.04 3.655 0.3 25 J 2-Butanone (MEK) 31.9 10.8 30.9 10.5 31.4 325

ND = Compound was analyzed for, but not detected above the laboratory detection limit. J = The result is an estimated concentration that is less than the MRL but greater than or equal to the MDL. B = Analyte detected in both the sample and associated method blank.

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LABORATORY DUPLICATE SUMMARY RESULTS Page 2 of 3 Client: ARCADIS U.S., Inc. Client Sample ID: SP-A-BAG-012512 CAS Project ID: P1200272 Client Project ID: PG&E Shell Pond / B0092353 CAS Sample ID: P1200272-005DUP

Initial Pressure (psig): 0.50 Final Pressure (psig): 3.78

Canister Dilution Factor: 1.22 Duplicate Compound Sample Result Sample Result Average % RPD RPD Data µg/m! ppbV µg/m! ppbV µg/m! Limit Qualifier cis-1,2-Dichloroethene ND ND ND ND - -25 Ethyl Acetate 0.669 0.186 0.626 0.174 0.6475 725 J n-Hexane 0.487 0.138 0.489 0.139 0.488 0.4 25 J Chloroform ND ND ND ND - -25 Tetrahydrofuran (THF) ND ND ND ND - -25 1,2-Dichloroethane ND ND ND ND - -25 1,1,1-Trichloroethane ND ND ND ND - -25 Benzene 0.171 0.0535 0.163 0.0512 0.167 525 Carbon Tetrachloride ND ND ND ND - -25 Cyclohexane ND ND ND ND - -25 1,2-Dichloropropane ND ND ND ND - -25 Bromodichloromethane ND ND ND ND - -25 Trichloroethene ND ND ND ND - -25 1,4-Dioxane ND ND ND ND - -25 Methyl Methacrylate ND ND ND ND - -25 n-Heptane 2.00 0.488 2.09 0.510 2.045 425 cis-1,3-Dichloropropene ND ND ND ND - -25 4-Methyl-2-pentanone 1.87 0.457 1.89 0.462 1.88 125 trans-1,3-Dichloropropene ND ND ND ND - -25 1,1,2-Trichloroethane ND ND ND ND - -25 Toluene 0.350 0.0930 0.392 0.104 0.371 11 25 J 2-Hexanone ND ND ND ND - -25 Dibromochloromethane ND ND ND ND - -25 1,2-Dibromoethane ND ND 0.100 0.0130 - -25 J n-Butyl Acetate ND ND ND ND - -25

ND = Compound was analyzed for, but not detected above the laboratory detection limit. J = The result is an estimated concentration that is less than the MRL but greater than or equal to the MDL.

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LABORATORY DUPLICATE SUMMARY RESULTS Page 3 of 3 Client: ARCADIS U.S., Inc. Client Sample ID: SP-A-BAG-012512 CAS Project ID: P1200272 Client Project ID: PG&E Shell Pond / B0092353 CAS Sample ID: P1200272-005DUP

Initial Pressure (psig): 0.50 Final Pressure (psig): 3.78

Canister Dilution Factor: 1.22 Duplicate Compound Sample Result Sample Result Average % RPD RPD Data µg/m! ppbV µg/m! ppbV µg/m! Limit Qualifier n-Octane 4.91 1.05 5.04 1.08 4.975 325 Tetrachloroethene ND ND ND ND - -25 Chlorobenzene ND ND ND ND - -25 Ethylbenzene 0.540 0.124 0.540 0.124 0.54 025 J m,p-Xylenes 1.00 0.230 0.985 0.227 0.9925 225 Bromoform ND ND ND ND - -25 Styrene ND ND ND ND - -25 o-Xylene 0.587 0.135 0.615 0.142 0.601 525 n-Nonane 5.06 0.965 5.03 0.959 5.045 0.6 25 1,1,2,2-Tetrachloroethane ND ND ND ND - -25 Cumene ND ND ND ND - -25 alpha-Pinene 1.61 0.289 1.60 0.287 1.605 0.6 25 n-Propylbenzene ND ND ND ND - -25 4-Ethyltoluene 0.418 0.0852 0.440 0.0896 0.429 525 J 1,3,5-Trimethylbenzene 0.570 0.116 0.578 0.118 0.574 125 J 1,2,4-Trimethylbenzene 1.31 0.267 1.35 0.275 1.33 325 Benzyl Chloride ND ND ND ND - -25 1,3-Dichlorobenzene ND ND ND ND - -25 1,4-Dichlorobenzene ND ND ND ND - -25 1,2-Dichlorobenzene ND ND ND ND - -25 d-Limonene ND ND ND ND - -25 1,2-Dibromo-3-chloropropane ND ND ND ND - -25 1,2,4-Trichlorobenzene ND ND ND ND - -25 Naphthalene ND ND ND ND - -25 Hexachlorobutadiene ND ND ND ND - -25

ND = Compound was analyzed for, but not detected above the laboratory detection limit. J = The result is an estimated concentration that is less than the MRL but greater than or equal to the MDL.

Verified By:______Date:______6. P1200272_TO15.xls - Dup (5) TO15SCAN.XLS - 75 Compounds - PageNo.: COLUMBIA ANALYTICAL SERVICES, INC. Now Part of the ALS Group RESULTS OF ANALYSIS Page 1 of 3 Client: ARCADIS U.S., Inc. Client Sample ID: SP-A-FB-Bag-012612 CAS Project ID: P1200298 Client Project ID: Shell Pond - PG&E / B0092353.03.0001C CAS Sample ID: P1200298-001

Test Code: EPA TO-15 Date Collected: 1/26/12 Instrument ID: Tekmar AUTOCAN/Agilent 5973inert/6890N/MS8 Date Received: 1/27/12 Analyst: Elsa Moctezuma Date Analyzed: 1/27/12 Sampling Media: 6.0 L Summa Canister Volume(s) Analyzed: 1.00 Liter(s) Test Notes: Container ID: AC01558

Initial Pressure (psig): 0.41 Final Pressure (psig): 3.75

Canister Dilution Factor: 1.22

CAS # Compound Result MRL MDL Result MRL MDL Data µg/m! µg/m! µg/m! ppbV ppbV ppbV Qualifier 115-07-1 Propene 1.7 0.610.120.97 0.35 0.070 75-71-8 Dichlorodifluoromethane (CFC 12) 2.6 0.610.150.53 0.12 0.030 74-87-3 Chloromethane 0.34 0.240.120.17 0.12 0.058 1,2-Dichloro-1,1,2,2- 76-14-2 ND 0.61 0.16 ND 0.087 tetrafluoroethane (CFC 114) 0.023 75-01-4 Vinyl Chloride ND 0.12 0.11 ND 0.048 0.042 106-99-0 1,3-Butadiene ND 0.24 0.13 ND 0.11 0.061 74-83-9 Bromomethane ND0.120.089 ND 0.031 0.023 75-00-3 Chloroethane ND 0.12 0.11 ND 0.046 0.041 64-17-5 Ethanol 77 6.12.041 3.2 1.0 75-05-8 Acetonitrile 2.9 0.610.211.7 0.360.12 107-02-8 Acrolein 2.2 2.40.230.95 1.1 0.10 J 67-64-1 Acetone 10 6.11.14.4 2.6 0.45 75-69-4 Trichlorofluoromethane 0.48 0.120.0940.086 0.022 0.017 67-63-0 2-Propanol (Isopropyl Alcohol) 1.5 1.20.490.61 0.50 0.20 107-13-1 Acrylonitrile 0.48 0.61 0.21 0.22 0.28 0.096 J 75-35-4 1,1-Dichloroethene ND 0.12 0.089 ND 0.031 0.022 75-09-2 Methylene Chloride 6.4 0.610.151.8 0.18 0.042 B 107-05-1 3-Chloro-1-propene (Allyl Chloride) ND 0.12 0.11 ND 0.039 0.035 76-13-1 Trichlorotrifluoroethane ND 0.12 0.11 ND 0.016 0.015 75-15-0 Carbon Disulfide 0.59 6.10.180.19 2.0 0.059 J 156-60-5 trans-1,2-Dichloroethene ND 0.12 0.099 ND 0.031 0.025 75-34-3 1,1-Dichloroethane ND 0.12 0.095 ND 0.030 0.024 1634-04-4 Methyl tert-Butyl Ether ND 0.12 0.11 ND 0.034 0.030 108-05-4 Vinyl Acetate ND 6.1 0.71 ND 1.7 0.20 78-93-3 2-Butanone (MEK) 0.66 6.10.280.23 2.1 0.095 J

Verified By:______Date:______7. P1200298_TO15.xls - Sample TO15SCAN.XLS - 75 Compounds - PageNo.: COLUMBIA ANALYTICAL SERVICES, INC. Now Part of the ALS Group RESULTS OF ANALYSIS Page 2 of 3 Client: ARCADIS U.S., Inc. Client Sample ID: SP-A-FB-Bag-012612 CAS Project ID: P1200298 Client Project ID: Shell Pond - PG&E / B0092353.03.0001C CAS Sample ID: P1200298-001

Initial Pressure (psig): 0.41 Final Pressure (psig): 3.75

Canister Dilution Factor: 1.22

CAS # Compound Result MRL MDL Result MRL MDL Data µg/m! µg/m! µg/m! ppbV ppbV ppbV Qualifier 156-59-2 cis-1,2-Dichloroethene ND 0.12 0.11 ND 0.031 0.028 141-78-6 Ethyl Acetate ND 1.2 0.35 ND 0.34 0.098 110-54-3 n-Hexane 0.16 0.610.150.045 0.17 0.042 J 67-66-3 Chloroform ND 0.12 0.094 ND 0.025 0.019 109-99-9 Tetrahydrofuran (THF) ND 0.61 0.27 ND 0.21 0.091 107-06-2 1,2-Dichloroethane ND 0.12 0.099 ND 0.030 0.024 71-55-6 1,1,1-Trichloroethane ND 0.12 0.11 ND 0.022 0.020 71-43 -2 Benzene 0190.19 0120.12 0110.11 00590.059 00380.038 00360.036 56-23-5 Carbon Tetrachloride ND 0.12 0.096 ND 0.019 0.015 110-82-7 Cyclohexane ND 1.2 0.31 ND 0.35 0.089 78-87-5 1,2-Dichloropropane ND 0.12 0.090 ND 0.026 0.020 75-27-4 Bromodichloromethane ND 0.12 0.093 ND 0.018 0.014 79-01-6 Trichloroethene ND 0.12 0.083 ND 0.023 0.015 123-91-1 1,4-Dioxane ND 0.61 0.16 ND 0.17 0.044 80-62-6 Methyl Methacrylate ND 1.2 0.34 ND 0.30 0.083 142-82-5 n-Heptane ND 0.61 0.17 ND 0.15 0.042 10061-01-5 cis-1,3-Dichloropropene ND 0.61 0.16 ND 0.13 0.035 108-10-1 4-Methyl-2-pentanone ND 0.61 0.15 ND 0.15 0.036 10061-02-6 trans-1,3-Dichloropropene ND 0.61 0.17 ND 0.13 0.038 79-00-5 1,1,2-Trichloroethane ND 0.12 0.084 ND 0.022 0.015 108-88-3 Toluene 0.74 0.610.160.20 0.16 0.042 591-78-6 2-Hexanone 0.47 0.610.160.11 0.15 0.039 J 124-48-1 Dibromochloromethane ND 0.12 0.084 ND 0.014 0.0099 106-93-4 1,2-Dibromoethane ND 0.12 0.085 ND 0.016 0.011 123-86-4 n-Butyl Acetate ND 0.61 0.15 ND 0.13 0.031

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Initial Pressure (psig): 0.41 Final Pressure (psig): 3.75

Canister Dilution Factor: 1.22

Result MRL MDL Result MRL MDL Data CAS # Compound µg/m! µg/m! µg/m! ppbV ppbV ppbV Qualifier 111-65-9 n-Octane 0.71 0.610.180.15 0.13 0.039 127-18-4 Tetrachloroethene ND 0.12 0.095 ND 0.018 0.014 108-90-7 Chlorobenzene ND 0.12 0.076 ND 0.027 0.016 100-41-4 Ethylbenzene 0.15 0.610.150.035 0.14 0.034 J 179601-23-1 m,p-Xylenes 0.59 0.610.310.14 0.14 0.070 J 75-25-2 Bromoform ND 0.61 0.17 ND 0.059 0.017 100-42-5 Styrene 0.25 0.610.170.060 0.14 0.040 J 94695-47-6 o-Xylene 0210.21 0610.61 0160.16 0040.048 0140.14 00370.037 J 111-84-2 n-Nonane 0.94 0.610.160.18 0.12 0.030 79-34-5 1,1,2,2-Tetrachloroethane ND 0.12 0.092 ND 0.018 0.013 98-82-8 Cumene ND 0.61 0.16 ND 0.12 0.032 80-56-8 alpha-Pinene 0.87 0.610.130.16 0.11 0.024 103-65-1 n-Propylbenzene ND 0.61 0.16 ND 0.12 0.032 622-96-8 4-Ethyltoluene ND 0.61 0.18 ND 0.12 0.037 108-67-8 1,3,5-Trimethylbenzene ND 0.61 0.17 ND 0.12 0.035 95-63-6 1,2,4-Trimethylbenzene 0.26 0.610.160.054 0.12 0.032 J 100-44-7 Benzyl Chloride ND 0.61 0.18 ND 0.12 0.035 541-73-1 1,3-Dichlorobenzene ND 0.12 0.095 ND 0.020 0.016 106-46-7 1,4-Dichlorobenzene ND 0.12 0.10 ND 0.020 0.017 95-50-1 1,2-Dichlorobenzene ND 0.12 0.098 ND 0.020 0.016 5989-27-5 d-Limonene 1.3 0.610.170.24 0.11 0.031 96-12-8 1,2-Dibromo-3-chloropropane ND 0.61 0.16 ND 0.063 0.016 120-82-1 1,2,4-Trichlorobenzene ND 0.61 0.29 ND 0.082 0.039 91-20-3 Naphthalene ND 0.61 0.35 ND 0.12 0.068 87-68-3 Hexachlorobutadiene ND 0.61 0.22 ND 0.057 0.021

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Client: ARCADIS U.S., Inc. Client Sample ID: Method Blank CAS Project ID: P1200298 Client Project ID: Shell Pond - PG&E / B0092353.03.0001C CAS Sample ID: P120127-MB

Canister Dilution Factor: 1.00

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Client: ARCADIS U.S., Inc. Client Sample ID: Method Blank CAS Project ID: P1200298 Client Project ID: Shell Pond - PG&E / B0092353.03.0001C CAS Sample ID: P120127-MB

Test Code: EPA TO-15 Date Collected: NA Instrument ID: Tekmar AUTOCAN/Agilent 5973inert/6890N/MS8 Date Received: NA Analyst: Elsa Moctezuma Date Analyzed:1/27/12 Sampling Media: 6.0 L Summa Canister Volume(s) Analyzed: 1.00 Liter(s) Test Notes:

Canister Dilution Factor: 1.00

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Client: ARCADIS U.S., Inc. CAS Project ID: P1200298 Client Sample ID: Method Blank CAS Sample ID: P120127-MB Client Project ID: Shell Pond - PG&E / B0092353.03.0001C

Test Code: EPA TO-15 Date Collected: NA Instrument ID: Tekmar AUTOCAN/Agilent 5973inert/6890N/MS8 Date Received: NA Analyst: Elsa Moctezuma Date Analyzed:1/27/12 Sampling Media: 6.0 L Summa Canister Volume(s) Analyzed: 1.00 Liter(s) Test Notes:

Canister Dilution Factor: 1.00

Result MRL MDL Result MRL MDL Data CAS # Compound µg/m! µg/m! µg/m! ppbV ppbV ppbV Qualifier 111-65-9 n-Octane ND 0.50 0.15 ND 0.11 0.032 127-18-4 Tetrachloroethene ND 0.10 0.078 ND 0.015 0.012 108-90-7 Chlorobenzene ND 0.10 0.062 ND 0.022 0.013 100-41-4 Ethylbenzene ND 0.50 0.12 ND 0.12 0.028 179601-23-1 m,p-Xylenes ND 0.50 0.25 ND 0.12 0.058 75-25-2 Bromoform ND 0.50 0.14 ND 0.048 0.014 100-42-5 Styrene ND 0.50 0.14 ND 0.12 0.033 95-47-6 o-Xylene ND 0.50 0.13 ND 0.12 0.030 111-84-2 n-Nonane ND 0.50 0.13 ND 0.095 0.025 79-34-5 1,1,2,2-Tetrachloroethane ND 0.10 0.075 ND 0.015 0.011 98-82-8 Cumene ND 0.50 0.13 ND 0.10 0.026 80-56-8 alpha-Pinene ND 0.50 0.11 ND 0.090 0.020 103-65-1 n-Propylbenzene ND 0.50 0.13 ND 0.10 0.026 622-96-8 4-Ethyltoluene ND 0.50 0.15 ND 0.10 0.031 108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.14 ND 0.10 0.028 95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.13 ND 0.10 0.026 100-44-7 Benzyl Chloride ND 0.50 0.15 ND 0.097 0.029 541-73-1 1,3-Dichlorobenzene ND 0.10 0.078 ND 0.017 0.013 106-46-7 1,4-Dichlorobenzene ND 0.10 0.086 ND 0.017 0.014 95-50-1 1,2-Dichlorobenzene ND 0.10 0.080 ND 0.017 0.013 5989-27-5 d-Limonene ND 0.50 0.14 ND 0.090 0.025 96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ND 0.052 0.013 120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.24 ND 0.067 0.032 91-20-3 Naphthalene ND 0.50 0.29 ND 0.095 0.055 87-68-3 Hexachlorobutadiene ND 0.50 0.18 ND 0.047 0.017

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Client: ARCADIS U.S., Inc. Client Project ID: Shell Pond - PG&E / B0092353.03.0001C CAS Project ID: P1200298

Test Code: EPA TO-15 Instrument ID: Tekmar AUTOCAN/Agilent 5973inert/6890N/MS8 Date(s) Collected: 1/26/12 Analyst: Elsa Moctezuma Date(s) Received: 1/27/12 Sampling Media: 6.0 L Summa Canister(s) Date(s) Analyzed: 1/27/12 Test Notes:

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Client: ARCADIS U.S., Inc. Client Sample ID: Lab Control Sample CAS Project ID: P1200298 Client Project ID: Shell Pond - PG&E / B0092353.03.0001C CAS Sample ID: P120127-LCS

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Client: ARCADIS U.S., Inc. Client Sample ID: Lab Control Sample CAS Project ID: P1200298 Client Project ID: Shell Pond - PG&E / B0092353.03.0001C CAS Sample ID: P120127-LCS

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Client: ARCADIS U.S., Inc. Client Sample ID: SP-A-BAG-012512 CAS Project ID: P1200272 Client Project ID: PG&E Shell Pond / B0092353 CAS Sample ID: P1200272-001

Tentatively Identified Compounds

Test Code: EPA TO-17 Date Collected: ####### Instrument ID: Markes ATD/Agilent 5975Cinert/7890A/MS18 Date Received: ####### Analyst: Chris Parnell Date Analyzed: ####### Sampling Media: ATD Tenax Volume(s) Analyzed: 10.0 Liter(s) Test Notes: T

GC/MS Compound Identification Concentration Concentration Data Retention Time ng/Tube µg/m! Qualifier 14.45 Dimethyloctane Isomer 130 13 15.82 C12H24 Compound 230 23 15.95 C12H24 Compound 190 19 16.03 4-Methyldecane 150 15 16.77 3-Methyldecane + C12H24 Compound 130 13 17. 16 nnUndecane-Undecane 92 9.2 17.25 C11H16 Alkylbenzene + Unidentified Isoparaffin + C11H22 Naphthene 100 10 17.44 C12H26 Branched Alkane 96 9.6 17.59 C12H26 Branched Alkane + Tetramethylbenzene Isomer + Unidentified Olefin 110 11 17.77 C11H16 Alkylbenzene + 2-Methyldecalin 110 11 17.91 C12H26 Branched Alkane + C11H14 Naphthene 95 9.5 18.02 C11H16 Alkylbenzene + C10H14 Alkylbenzene + 1-Methyldecalin 110 11 18.51 C12H24 Naphthene + C11H16 Alkylbenzene + C11H16 Alkylbenzene + Dimethyldihydroindene 92 9.2 18.62 Unidentified Compound 130 13 18.66 2,6-Dimethylundecane 190 19 19.12 2-Butyl-1,1,3-trimethylcyclohexane + Dimethyltetrahydronaphthalene 110 11 19.26 Unidentified Compound 220 22 19.32 C13H28 Branched Alkane 110 11 19.51 C13H26 Naphthene 150 15 20.13 Unidentified Compound 160 16

T = Analyte is a tentatively identifed compound, result is estimated.

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Client: ARCADIS U.S., Inc. Client Sample ID: TB-012512 CAS Project ID: P1200272 Client Project ID: PG&E Shell Pond / B0092353 CAS Sample ID: P1200272-006

Tentatively Identified Compounds

Test Code: EPA TO-17 Date Collected: 1/25/2012 Instrument ID: Markes ATD/Agilent 5975Cinert/7890A/MS18 Date Received: 1/26/2012 Analyst: Chris Parnell Date Analyzed: 1/26/2012 Sampling Media: ATD Tenax Volume(s) Analyzed: NA Liter(s) Test Notes: T

GC/MS Compound Identification Concentration Concentration Data Retention Time ng/Tube µg/m! Qualifier 4.70 Acetaldehyde 3.0 NA 5.58 Acetone 3.1 NA 6.71 Acetic Acid 15 NA 28.27 Dibutyl phthalate 3.0 NA

T = Analyte is a tentatively identifed compound , result is estimated .

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RESULTS OF ANALYSIS Page 1 of 1

Client: ARCADIS U.S., Inc. Client Sample ID: Method Blank CAS Project ID: P1200272 Client Project ID: PG&E Shell Pond / B0092353 CAS Sample ID: P120126-MB

Tentatively Identified Compounds

Test Code: EPA TO-17 Date Collected: NA Instrument ID: Markes ATD/Agilent 5975Cinert/7890A/MS18 Date Received: NA Analyst: Chris Parnell Date Analyzed: 1/26/12 Sampling Media: ATD Tenax Volume(s) Analyzed: NA Liter(s) Test Notes:

GC/MS Compound Identification Concentration Concentration Data Retention Time ng/Tube µg/m! Qualifier No Compounds Detected NA

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Client: ARCADIS U.S., Inc. Client Sample ID: SP-A-FB-Bag-012612 CAS Project ID: P1200298 Client Project ID: Shell Pond - PG&E / B0092353.03.0001C CAS Sample ID: P1200298-004

Tentatively Identified Compounds

Test Code: EPA TO-17 Date Collected: 1/26/2012 Instrument ID: Markes ATD/Agilent 5975Cinert/7890A/MS18 Date Received: 1/27/2012 Analyst: Chris Parnell Date Analyzed: 1/30/2012 Sampling Media: TD Tenax Sorbent Volume(s) Analyzed: 20.0 Liter(s) Test Notes: T

GC/MS Compound Identification Concentration Concentration Data Retention Time ng/Tube µg/m! Qualifier 9.09 n-Pentanal 280 14 11.25 n-Hexanal 700 35 14.40 2-Heptenal + Hexanoic acid 190 9.4 15.31 n-Octanal 61 3.0 15.56 n-Decane 170 8.7 16. 10 Unidentified Compound 120 5.8 16.33 Unidentified Compound 310 16 16.41 C11H24 Branched Alkane 83 4.2 16.63 C11H24 Branched Alkane 71 3.6 16.74 C11H24 Branched Alkane 120 5.9 16.97 n-Nonanal 240 12 17.13 n-Undecane 94 4.7 17.44 C12H24 Naphthene or Olefin 130 6.3 17.77 Unidentified Compound 57 2.8 18.11 C12H26 Branched Alkane 62 3.1 18.43 n-Dodecane 130 6.6 18.78 C13H28 Branched Alkane 62 3.1 19.07 Unidentified Naphthene or Olefin 72 3.6 19.79 Unidentified Siloxane + Unidentified Branched Alkane 63 3.2 22.41 2,6-bis(1,1-Dimethylethyl)-4-ethylphenol 1,400 72

T = Analyte is a tentatively identifed compound, result is estimated.

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Client: ARCADIS U.S., Inc. Client Sample ID: Method Blank CAS Project ID: P1200298 Client Project ID: Shell Pond - PG&E / B0092353.03.0001C CAS Sample ID: P120130-MB

Tentatively Identified Compounds

Test Code: EPA TO-17 Date Collected: NA Instrument ID: Markes ATD/Agilent 5975Cinert/7890A/MS18 Date Received: NA Analyst: Chris Parnell Date Analyzed: 1/30/12 Sampling Media: TD Tenax Sorbent Volume(s) Analyzed: NA Liter(s) Test Notes:

GC/MS Compound Identification Concentration Concentration Data Retention Time ng/Tube µg/m! Qualifier No Compounds Detected NA

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Client: ARCADIS U.S., Inc. Client Sample ID: SP-A-BAG-012512 CAS Project ID: P1200272 Client Project ID: PG & E Shell Pond / B0092353 CAS Sample ID: P1200272-003

Test Code: ASTM D 5504-08 Date Collected: 1/25/12 Instrument ID: Agilent 7890A/GC22/SCD Time Collected: 16:23 Analyst: Lauryn Keeler Date Received: 1/26/12 Sampling Media: 1 L Zefon Bag Date Analyzed: 1/26/12 Test Notes: Time Analyzed: 12:34 Volume(s) Analyzed: 1.0 ml(s)

CAS # Compound Result MRL Result MRL Data µg/m! µg/m! ppbV ppbV Qualifier 7783-06-4 Hydrogen Sulfide ND 7.0 ND 5.0 463-58-1 Carbonyl Sulfide ND 12 ND 5.0 74-93-1 Methyl Mercaptan ND 9.8 ND 5.0 75-08-1 Ethyl Mercaptan ND 13 ND 5.0 75-18-3 Dimethyl Sulfide ND 13 ND 5.0 75-15-0 Carbon Disulfide ND7.8 ND 2.5 75-33-2 Isopropyl Mercaptan ND 16 ND 5.0 75-66-1 tert-Butyl Mercaptan ND 18 ND 5.0 107-03-9 n-Propyl Mercaptan ND 16 ND 5.0 624-89-5 Ethyl Methyl Sulfide ND 16 ND 5.0 110-02-1 Thiophene ND 17 ND 5.0 513-44-0 Isobutyl Mercaptan ND 18 ND 5.0 352-93-2 Diethyl Sulfide ND 18 ND 5.0 109-79-5 n-Butyl Mercaptan ND 18 ND 5.0 624-92-0 Dimethyl Disulfide ND 9.6 ND 2.5 616-44-4 3-Methylthiophene ND 20 ND 5.0 110-01-0 Tetrahydrothiophene ND 18 ND 5.0 638-02-8 2,5-Dimethylthiophene ND 23 ND 5.0 872-55-9 2-Ethylthiophene ND 23 ND 5.0 110-81-6 Diethyl Disulfide ND 12 ND 2.5

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Client: ARCADIS U.S., Inc. Client Sample ID: Method Blank CAS Project ID: P1200272 Client Project ID: PG & E Shell Pond / B0092353 CAS Sample ID: P120126-MB

Test Code: ASTM D 5504-08 Date Collected: NA Instrument ID: Agilent 7890A/GC22/SCD Time Collected: NA Analyst: Lauryn Keeler Date Received: NA Sampling Media: 1 L Zefon Bag Date Analyzed: 1/26/12 Test Notes: Time Analyzed: 08:43 Volume(s) Analyzed: 1.0 ml(s)

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LABORATORY CONTROL SAMPLE SUMMARY Page 1 of 1

Client: ARCADIS U.S., Inc. Client Sample ID: Lab Control Sample CAS Project ID: P1200272 Client Project ID: PG & E Shell Pond / B0092353 CAS Sample ID: P120126-LCS

Test Code: ASTM D 5504-08 Date Collected: NA Instrument ID: Agilent 7890A/GC22/SCD Date Received: NA Analyst: Lauryn Keeler Date Analyzed: 1/26/12 Sampling Media: 1 L Zefon Bag Volume(s) Analyzed: NA ml(s) Test Notes:

CAS CAS # Compound Spike Amount Result % Recovery Acceptance Data ppbV ppbV Limits Qualifier 7783-06-4 Hydrogen Sulfide 2,380 2,480 104 51-141 463-58-1 Carbonyl Sulfide 2,470 2,040 83 63-147 74-93-1 Methyl Mercaptan 2,360 2,820 119 54-156

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Client: ARCADIS U.S., Inc. Client Sample ID: SP-A-FB-Bag-012612 CAS Project ID: P1200298 Client Project ID: Shell Pond - PG&E / B0092353.03.0001C CAS Sample ID: P1200298-002

Test Code: ASTM D 5504-08 Date Collected: 1/26/12 Instrument ID: Agilent 6890A/GC13/SCD Time Collected: 13:14 Analyst: Wade Henton Date Received: 1/27/12 Sampling Media: 1 L Zefon Bag Date Analyzed: 1/27/12 Test Notes: Time Analyzed: 10:14 Volume(s) Analyzed: 1.0 ml(s)

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Client: ARCADIS U.S., Inc. Client Sample ID: Method Blank CAS Project ID: P1200298 Client Project ID: Shell Pond - PG&E / B0092353.03.0001C CAS Sample ID: P120127-MB

Test Code: ASTM D 5504-08 Date Collected: NA Instrument ID: Agilent 6890A/GC13/SCD Time Collected: NA Analyst: Wade Henton Date Received: NA Sampling Media: 1 L Zefon Bag Date Analyzed: 1/27/12 Test Notes: Time Analyzed: 08:22 Volume(s) Analyzed: 1.0 ml(s)

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LABORATORY CONTROL SAMPLE SUMMARY Page 1 of 1

Client: ARCADIS U.S., Inc. Client Sample ID: Lab Control Sample CAS Project ID: P1200298 Client Project ID: Shell Pond - PG&E / B0092353.03.0001C CAS Sample ID: P120127-LCS

Test Code: ASTM D 5504-08 Date Collected: NA Instrument ID: Agilent 6890A/GC13/SCD Date Received: NA Analyst: Wade Henton Date Analyzed: 1/27/12 Sampling Media: 1 L Zefon Bag Volume(s) Analyzed: NA ml(s) Test Notes:

CAS CAS # Compound Spike Amount Result % Recovery Acceptance Data ppbV ppbV Limits Qualifier 7783-06-4 Hydrogen Sulfide 2,380 1,780 75 51-141 463-58-1 Carbonyl Sulfide 2,470 1,700 69 63-147 74-93-1 Methyl Mercaptan 2,360 2,110 89 54-156

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Client: ARCADIS U.S., Inc. Client Sample ID: SP-A-FB-Bag-012612 CAS Project ID: P1200298 Client Project ID: Shell Pond - PG&E / B0092353.03.0001C CAS Sample ID: P1200298-006

Test Code: GC/NPD Date Collected: 1/26/12 Instrument ID: Agilent 6890N/GC14/NPD Date Received: 1/27/12 Analyst: Zheng Wang/Madeleine Dangazyan Date Analyzed: 1/27/12 Sampling Media: Treated Alumina Tube Desorption Volume: 2.0 ml Test Notes: BC, DE Volume Sampled: 100 Liter(s)

CAS # Compound Result Result MRL Result MRL Data µg/Tube µg/m! µg/m! ppbV ppbV Qualifier 124-40-3 Dimethylamine < 0.53 ND 5.3 ND 2.8 75-04-7 Ethylamine < 0.55 ND 5.5 ND 3.0 75-50-3 Trimethylamine < 0.54 ND 5.4 ND 2.2 75-31-0 Isopropylamine < 0.51 ND 5.1 ND 2.1 75-64-9 tert-Butylamine < 1.0 ND 10 ND 3.3 107-10-8 n-Propylamine < 0.52 ND5.2 ND2.2 109-89-7 Diethylamine < 0.51 ND 5.1 ND 1.7 13952-84-6 sec-Butylamine < 0.51 ND 5.1 ND 1.7 78-81-9 Isobutylamine < 0.51 ND 5.1 ND 1.7 109-73-9 n-Butylamine < 0.52 ND 5.2 ND 1.7 108-18-9 Diisopropylamine < 0.51 ND 5.1 ND 1.2 121-44-8 Triethylamine < 0.52 ND 5.2 ND 1.3 142-84-7 Dipropylamine < 0.50 ND 5.0 ND 1.2

ND = Compound was analyzed for, but not detected above the laboratory reporting limit. MRL = Method Reporting Limit - The minimum quantity of a target analyte that can be confidently determined by the referenced method. BC = Results reported are not blank corrected. DE = Results reported are corrected for desorption efficiency.

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Client: ARCADIS U.S., Inc. Client Sample ID: Method Blank CAS Project ID: P1200298 Client Project ID: Shell Pond - PG&E / B0092353.03.0001C CAS Sample ID: P120127-MB

Test Code: GC/NPD Date Collected: NA Instrument ID: Agilent 6890N/GC14/NPD Date Received: NA Analyst: Zheng Wang/Madeleine Dangazyan Date Analyzed: 1/27/12 Sampling Media: Treated Alumina Tube Desorption Volume: 2.0 ml Test Notes: BC, DE Volume Sampled: NA Liter(s)

CAS # Compound Result Result MRL Result MRL Data µg/Tube µg/m! µg/m! ppbV ppbV Qualifier 124-40-3 Dimethylamine < 0.53 NA NA NA NA 75-04-7 Ethylamine < 0.55 NA NA NA NA 75-50-3 Trimethylamine < 0.54 NA NA NA NA 75-31-0 Isopropylamine < 0.51 NA NA NA NA 75-64-9 tert-Butylamine < 1.0 NA NA NA NA 107-10-8 n-Propylamine < 0.52 NA NA NA NA 109-89-7 Diethylamine < 0.51 NA NA NA NA 13952-84-6 sec-Butylamine < 0.51 NA NA NA NA 78-81-9 Isobutylamine < 0.51 NA NA NA NA 109-73-9 n-Butylamine < 0.52 NA NA NA NA 108-18-9 Diisopropylamine < 0.51 NA NA NA NA 121-44-8 Triethylamine < 0.52 NA NA NA NA 142-84-7 Dipropylamine < 0.50 NA NA NA NA

ND = Compound was analyzed for, but not detected above the laboratory reporting limit. MRL = Method Reporting Limit - The minimum quantity of a target analyte that can be confidently determined by the referenced method. NA = Not applicable. BC = Results reported are not blank corrected. DE = Results reported are corrected for desorption efficiency.

Verified By:______Date:______12. P1200298_Amines.xls - MBlank AMINES.XLS - Page No.: COLUMBIA ANALYTICAL SERVICES, INC.

LABORATORY CONTROL SAMPLE / DUPLICATE LABORATORY CONTROL SAMPLE SUMMARY Page 1 of 1

Client: ARCADIS U.S., Inc. Client Sample ID: Duplicate Lab Control Sample CAS Project ID: P1200298 Client Project ID: Shell Pond - PG&E / B0092353.03.0001C CAS Sample ID: P120127-DLCS

Spike Amount Result CAS CAS # Compound LCS / DLCS LCS DLCS % Recovery Acceptance RPD RPD Data µg/ml µg/ml µg/ml LCS DLCS Limits Limit Qualifier 124-40-3 Dimethylamine 12.0 11.9 12.0 99 100 48-128 1 24 75-04-7 Ethylamine 10.8 10.5 10.3 97 95 45-122 2 28 75-50-3 Trimethylamine 10.2 9.68 10.0 95 98 44-137 3 31 75-31-0 Isopropylamine 8.12 7.87 8.22 97 101 57-129 4 19 75-64-9 tert-Butylamine 12.2 11.7 12.6 96 103 58-131 7 19 107-10-8 n-Propylamine 13.1 13.0 12.9 99 98 47-129 1 21 109-89-7 Diethylamine 11.3 11.0 11.6 97 103 57-129 6 18 13952-84-6 sec-Butylamine 11.6 11.3 11.7 97 101 59-127 4 16 78-81-9 Isobutylamine 11.1 11.0 11.3 99 102 57-123 3 18 109-73-9 n-Butylamine 11.1 11.1 11.1 100 100 59-129 0 19 108-18-9 Diisopropylamine 10.4 9.57 11.2 92 108 58-128 16 19 121-44-8 Triethylamine 10.9 10.5 11.7 96 107 56-130 11 21 124-09-4 Hexamethylenediamine 10.6 10.6 11.1 100 105 50-150 5 30

Verified By:______Date:______12. P1200298_Amines.xls - DLCS AMINES.XLS - Page No.: COLUMBIA ANALYTICAL SERVICES, INC.

RESULTS OF ANALYSIS Page 1 of 1

Client: ARCADIS U.S., Inc. Client Sample ID: SP-A-BAG-012512 CAS Project ID: P1200272 Client Project ID: PG&E Shell Pond / B0092353 CAS Sample ID: P1200272-005

Test Code: Massachusetts APH, Revision 1, December 2009 Date Collected: 1/25/12 Instrument ID: Tekmar AUTOCAN/Agilent 5973inert/6890N/MS8 Date Received: 1/26/12 Analyst: Elsa Moctezuma Date Analyzed: 1/27/12 Sampling Media: 6.0 L Summa Canister Volume(s) Analyzed: 1.00 Liter(s) Test Notes: Container ID: AC01289 Initial Pressure (psig): 0.50 Final Pressure (psig): 3.78

Canister Dilution Factor: 1.22

Compound Result MRL Data µg/m! µg/m! Qualifier 1,2 C5 - C8 Aliphatic Hydrocarbons 850 24 1,3 C9 - C12 Aliphatic Hydrocarbons 5,600 12

C9 - C10 Aromatic Hydrocarbons 93 6.1 Significant non-petroleum related peaks (i.e. halogenated, oxygenated, terpenes, etc.) are subtracted from the hydrocarbon range areas when present. "Hydrocarbon Range data from total ion chromatogram excluding any internal/tuning standards eluting in that range.

#C5-C8 Aliphatic Hydrocarbons exclude the concentration of Target APH analytes eluting in that range.

!C9-C12 Aliphatic Hydrocarbons exclude concentration of Target APH Analytes eluting in that range and concentration of C9-C10 Aromatic Hydrocarbons. ND = Compoun d was ana lyze d for, bu t no t de tec te d a bove the la bora tory repor ting limit . MRL = Method Reporting Limit - The minimum quantity of a target analyte that can be confidently determined by the referenced method.

Verified By:______Date:______13. P1200272_APH.xls - Sample (5) APH..XLT - Page No.: COLUMBIA ANALYTICAL SERVICES, INC.

RESULTS OF ANALYSIS Page 1 of 1

Client: ARCADIS U.S., Inc. Client Sample ID: Method Blank CAS Project ID: P1200272 Client Project ID: PG&E Shell Pond / B0092353 CAS Sample ID: P120127-MB

Test Code: Massachusetts APH, Revision 1, December 2009 Date Collected: NA Instrument ID: Tekmar AUTOCAN/Agilent 5973inert/6890N/MS8 Date Received: NA Analyst: Elsa Moctezuma Date Analyzed: 1/27/12 Sampling Media: 6.0 L Summa Canister Volume(s) Analyzed: 1.00 Liter(s) Test Notes:

Compound Result MRL Data µg/m! µg/m! Qualifier 1,2 C5 - C8 Aliphatic Hydrocarbons ND 20 1,3 C9 - C12 Aliphatic Hydrocarbons ND 10

C9 - C10 Aromatic Hydrocarbons ND 5.0 Significant non-petroleum related peaks (i.e. halogenated, oxygenated, terpenes, etc.) are subtracted from the hydrocarbon range areas when present. "Hydrocarbon Range data from total ion chromatogram excluding any internal/tuning standards eluting in that range.

#C5-C8 Aliphatic Hydrocarbons exclude the concentration of Target APH analytes eluting in that range.

Verified By:______Date:______13. P1200272_APH.xls - MBlank APH..XLT - Page No.: COLUMBIA ANALYTICAL SERVICES, INC.

LABORATORY CONTROL SAMPLE SUMMARY Page 1 of 1

Client: ARCADIS U.S., Inc. Client Sample ID: Lab Control Sample CAS Project ID: P1200272 Client Project ID: PG&E Shell Pond / B0092353 CAS Sample ID: P120127-LCS

CAS Compound Spike Amount Result % Recovery Acceptance Data ng ng Limits Qualifier C5 - C8 Aliphatic Hydrocarbons 24.5 23.6 96 70-130 C9 - C12 Aliphatic Hydrocarbons 25.0 23.0 92 70-130 C9 - C10 Aromatic Hydrocarbons 48.5 41.4 85 70-130

Verified By:______Date:______13. P1200272_APH.xls - LCS APH..XLT - Page No.: COLUMBIA ANALYTICAL SERVICES, INC.

LABORATORY DUPLICATE SUMMARY RESULTS Page 1 of 1

Client: ARCADIS U.S., Inc. Client Sample ID: SP-A-BAG-012512 CAS Project ID: P1200272 Client Project ID: PG&E Shell Pond / B0092353 CAS Sample ID: P1200272-005DUP

Canister Dilution Factor: 1.22 Duplicate Compound Sample Result Sample Result Average % RPD RPD Data µg/m! µg/m! µg/m! LimitQualifier 1,2 C5 - C8 Aliphatic Hydrocarbons 850 872 861 3 30 1,3 C9 - C12 Aliphatic Hydrocarbons 5,630 5,300 5465 6 30

C9 - C10 Aromatic Hydrocarbons 93.1 90.6 91.85 3 30 Significant non-petroleum related peaks (i.e. halogenated, oxygenated, terpenes, etc.) are subtracted from the hydrocarbon range areas when present. "Hydrocarbon Range data from total ion chromatogram excluding any internal/tuning standards eluting in that range.

#C5-C8 Aliphatic Hydrocarbons exclude the concentration of Target APH analytes eluting in that range.

Verified By:______Date:______13. P1200272_APH.xls - Dup (5) APH..XLT - Page No.: COLUMBIA ANALYTICAL SERVICES, INC. Now Part of the ALS Group RESULTS OF ANALYSIS Page 1 of 1

Client: ARCADIS U.S., Inc. Client Sample ID: SP-A-FB-Bag-012612 CAS Project ID: P1200298 Client Project ID: Shell Pond - PG&E / B0092353.03.0001C CAS Sample ID: P1200298-001

Test Code: Massachusetts APH, Revision 1, December 2009 Date Collected: 1/26/12 Instrument ID: Tekmar AUTOCAN/Agilent 5973inert/6890N/MS8 Date Received: 1/27/12 Analyst: Elsa Moctezuma Date Analyzed: 1/27/12 Sampling Media: 6.0 L Summa Canister Volume(s) Analyzed: 1.00 Liter(s) Test Notes: Container ID: AC01558 Initial Pressure (psig): 0.41 Final Pressure (psig): 3.75

Canister Dilution Factor: 1.22

Compound Result MRL Data µg/m! µg/m! Qualifier 1,2 C5 - C8 Aliphatic Hydrocarbons 47 24 1,3 C9 - C12 Aliphatic Hydrocarbons 140 12

C9 - C10 Aromatic Hydrocarbons ND 6.1 Significant non-petroleum related peaks (i.e. halogenated, oxygenated, terpenes, etc.) are subtracted from the hydrocarbon range areas when present. "Hydrocarbon Range data from total ion chromatogram excluding any internal/tuning standards eluting in that range.

#C5-C8 Aliphatic Hydrocarbons exclude the concentration of Target APH analytes eluting in that range.

Verified By:______Date:______14. P1200298_APH.xls - Sample APH..XLT - Page No.: COLUMBIA ANALYTICAL SERVICES, INC. Now Part of the ALS Group RESULTS OF ANALYSIS Page 1 of 1

Client: ARCADIS U.S., Inc. Client Sample ID: Method Blank CAS Project ID: P1200298 Client Project ID: Shell Pond - PG&E / B0092353.03.0001C CAS Sample ID: P120127-MB

Compound Result MRL Data µg/m! µg/m! Qualifier 1,2 C5 - C8 Aliphatic Hydrocarbons ND 20 1,3 C9 - C12 Aliphatic Hydrocarbons ND 10

#C5-C8 Aliphatic Hydrocarbons exclude the concentration of Target APH analytes eluting in that range.

Verified By:______Date:______14. P1200298_APH.xls - MBlank APH..XLT - Page No.: COLUMBIA ANALYTICAL SERVICES, INC. Now Part of the ALS Group LABORATORY CONTROL SAMPLE SUMMARY Page 1 of 1

Client: ARCADIS U.S., Inc. Client Sample ID: Lab Control Sample CAS Project ID: P1200298 Client Project ID: Shell Pond - PG&E / B0092353.03.0001C CAS Sample ID: P120127-LCS

Verified By:______Date:______14. P1200298_APH.xls - LCS APH..XLT - Page No.: COLUMBIA ANALYTICAL SERVICES, INC.

RESULTS OF ANALYSIS Page 1 of 1

Client: ARCADIS U.S., Inc. Client Sample ID: SP-A-BAG-012512 CAS Project ID: P1200272 Client Project ID: PG&E Shell Pond / B0092353 CAS Sample ID: P1200272-002

Test Code: GC/MS Date Collected: 1/25/12 Instrument ID: Agilent 5973/Agilent 6890/MS14 Date Received: 1/26/12 Analyst: Madeleine Dangazyan Date Analyzed: 1/31/12 Sampling Media: Silica Gel Tube Desorption Volume: 1.0 ml Test Notes: BC, DE Volume Sampled: 100 Liter(s)

CAS # Compound Result Result MRL Result MRL Data µg/Tube µg/m! µg/m! ppbV ppbV Qualifier 64-19-7 Acetic Acid < 2.2 ND 22 ND 9.1 79-09-4 Propionic Acid (Propanoic) < 0.27 ND 2.7 ND 0.90 79-31-2 2-Methylpropanoic Acid (Isobutyric) < 0.26 ND 2.6 ND 0.73 107-92-6 Butanoic Acid (Butyric) < 0.26 ND 2.6 ND 0.73 116-53-0 2-Methylbutanoic Acid < 0.26 ND 2.6 ND 0.62 503-74-2 3-Methylbutanoic Acid (Isovaleric) < 0.26 ND 2.6 ND 0.62 109-52-4 Pentanoiid(li)ic Acid (Valeric) < 0.26 ND 2.6 ND 0.62 97-61-0 2-Methylpentanoic Acid < 0.26 ND 2.6 ND 0.54 105-43-1 3-Methylpentanoic Acid < 0.26 ND 2.6 ND 0.54 646-07-1 4-Methylpentanoic Acid (Isocaproic) < 0.26 ND 2.6 ND 0.55 142-62-1 Hexanoic Acid (Caproic) < 0.26 ND 2.6 ND 0.54 111-14-8 Heptanoic Acid (Enanthoic) < 0.25 ND 2.5 ND 0.47 149-57-5 2-Ethylhexanoic Acid < 0.26 ND 2.6 ND 0.44 98-89-5 Cyclohexanecarboxylic Acid < 0.26 ND 2.6 ND 0.49 124-07-2 Octanoic Acid (Caprylic) < 0.26 ND 2.6 ND 0.44 65-85-0 Benzoic Acid < 0.28 ND 2.8 ND 0.56 112-05-0 Nonanoic Acid (Pelargonic) < 0.25 ND 2.5 ND 0.39

Verified By:______Date:______15. P1200272_Carboxylic Acids.xls - Sample (2) CARBXL.XLS - Page No.: COLUMBIA ANALYTICAL SERVICES, INC.

RESULTS OF ANALYSIS Page 1 of 1

Client: ARCADIS U.S., Inc. Client Sample ID: Method Blank CAS Project ID: P1200272 Client Project ID: PG&E Shell Pond / B0092353 CAS Sample ID: P120131-MB

Test Code: GC/MS Date Collected: NA Instrument ID: Agilent 5973/Agilent 6890/MS14 Date Received: NA Analyst: Madeleine Dangazyan Date Analyzed: 1/31/12 Sampling Media: Silica Gel Tube Desorption Volume: 1.0 ml Test Notes: BC, DE Volume Sampled: NA Liter(s)

CAS # Compound Result Result MRL Result MRL Data µg/Tube µg/m! µg/m! ppbV ppbV Qualifier 64-19-7 Acetic Acid < 2.2 NA NA NA NA 79-09-4 Propionic Acid (Propanoic) < 0.27 NA NA NA NA 79-31-2 2-Methylpropanoic Acid (Isobutyric) < 0.26 NA NA NA NA 107-92-6 Butanoic Acid (Butyric) < 0.26 NA NA NA NA 116-53-0 2-Methylbutanoic Acid < 0.26 NA NA NA NA 503-74-2 3-Methylbutanoic Acid (Isovaleric) < 0.26 NA NA NA NA 109-52-4 Pentanoiid(li)ic Acid (Valeric) < 0.26 NA NA NA NA 97-61-0 2-Methylpentanoic Acid < 0.26 NA NA NA NA 105-43-1 3-Methylpentanoic Acid < 0.26 NA NA NA NA 646-07-1 4-Methylpentanoic Acid (Isocaproic) < 0.26 NA NA NA NA 142-62-1 Hexanoic Acid (Caproic) < 0.26 NA NA NA NA 111-14-8 Heptanoic Acid (Enanthoic) < 0.25 NA NA NA NA 149-57-5 2-Ethylhexanoic Acid < 0.26 NA NA NA NA 98-89-5 Cyclohexanecarboxylic Acid < 0.26 NA NA NA NA 124-07-2 Octanoic Acid (Caprylic) < 0.26 NA NA NA NA 65-85-0 Benzoic Acid < 0.28 NA NA NA NA 112-05-0 Nonanoic Acid (Pelargonic) < 0.25 NA NA NA NA

ND = Compound was analyzed for, but not detected above the laboratory reporting limit. MRL = Method Reporting Limit - The minimum quantity of a target analyte that can be confidently determined by the referenced method. NA = Not applicable. BC = Results reported are not blank corrected. DE = Results reported are corrected for desorption efficiency.

Verified By:______Date:______15. P1200272_Carboxylic Acids.xls - MBlank CARBXL.XLS - Page No.: COLUMBIA ANALYTICAL SERVICES, INC.

LABORATORY CONTROL SAMPLE / DUPLICATE LABORATORY CONTROL SAMPLE SUMMARY Page 1 of 1

Client: ARCADIS U.S., Inc. Client Sample ID: Duplicate Lab Control Sample CAS Project ID: P1200272 Client Project ID: PG&E Shell Pond / B0092353 CAS Sample ID: P120131-DLCS

Spike Amount Result CAS CAS # Compound LCS / DLCS LCS DLCS % Recovery Acceptance RPD RPD Data µg/ml µg/ml µg/ml LCS DLCS Limits Limit Qualifier 64-19-7 Acetic Acid 16.3 21.3 18.3 131 112 41-145 16 39 79-09-4 Propionic Acid (Propanoic) 8.67 10.9 10.1 126 116 53-135 8 26 79-31-2 2-Methylpropanoic Acid (Isobutyric) 8.98 10.7 9.87 119 110 58-131 8 24 107-92-6 Butanoic Acid (Butyric) 9.61 11.4 10.8 119 112 66-125 6 25 116-53-0 2-Methylbutanoic Acid 9.91 11.1 10.7 112 108 74-118 4 15 503-74-2 3-Methylbutanoic Acid (Isovaleric) 10.1 11.4 10.8 113 107 77-117 5 14 109-52-4 Pentanoic Acid (Valeric) 10.3 11.2 10.7 109 104 78-116 5 17 97-61-0 2-Methyyplpentanoic Acid 10.4 11.4 10.9 110 105 78-116 5 17 105-43-1 3-Methylpentanoic Acid 10.3 11.0 10.6 107 103 76-121 4 15 646-07-1 4-Methylpentanoic Acid (Isocaproic) 10.4 11.1 10.7 107 103 75-120 4 17 142-62-1 Hexanoic Acid (Caproic) 10.1 10.7 10.3 106 102 80-113 4 12 111-14-8 Heptanoic Acid (Enanthoic) 10.3 11.5 10.6 112 103 75-121 8 21 149-57-5 2-Ethylhexanoic Acid 10.2 11.1 10.2 109 100 61-123 9 22 98-89-5 Cyclohexanecarboxylic Acid 9.23 10.2 9.33 111 101 79-117 9 16 124-07-2 Octanoic Acid (Caprylic) 10.4 11.4 10.6 110 102 77-118 8 17 65-85-0 Benzoic Acid 9.32 9.51 8.80 102 94 46-121 8 26 112-05-0 Nonanoic Acid (Pelargonic) 10.6 11.6 11.0 109 104 69-127 5 25

Verified By:______Date:______15. P1200272_Carboxylic Acids.xls - DLCS CARBXL.XLS - Page No.: COLUMBIA ANALYTICAL SERVICES, INC.

RESULTS OF ANALYSIS Page 1 of 1

Client: ARCADIS U.S., Inc. Client Sample ID: SP-A-FB-Bag-012612 CAS Project ID: P1200298 Client Project ID: Shell Pond - PG&E / B0092353.03.0001C CAS Sample ID: P1200298-005

Test Code: GC/MS Date Collected: 1/26/12 Instrument ID: Agilent 5973/Agilent 6890/MS14 Date Received: 1/27/12 Analyst: Madeleine Dangazyan Date Analyzed: 1/31/12 Sampling Media: Silica Gel Tube Desorption Volume: 1.0 ml Test Notes: BC, DE Volume Sampled: 100 Liter(s)

CAS # Compound Result Result MRL Result MRL Data µg/Tube µg/m! µg/m! ppbV ppbV Qualifier 64-19-7 Acetic Acid 8.0 80 22 33 9.1 BH 79-09-4 Propionic Acid (Propanoic) 0.40 4.0 2.7 1.3 0.90 BH 79-31-2 2-Methylpropanoic Acid (Isobutyric) < 0.26 ND 2.6 ND 0.73 107-92-6 Butanoic Acid (Butyric) < 0.26 ND 2.6 ND 0.73 116-53-0 2-Methylbutanoic Acid < 0.26 ND 2.6 ND 0.62 503-74-2 3-Methylbutanoic Acid (Isovaleric) < 0.26 ND 2.6 ND 0.62 109-52-4 Pentanoiid(li)ic Acid (Valeric) 0.48 4.8 2.6 1.1 0.62 BH 97-61-0 2-Methylpentanoic Acid < 0.26 ND 2.6 ND 0.54 105-43-1 3-Methylpentanoic Acid < 0.26 ND 2.6 ND 0.54 646-07-1 4-Methylpentanoic Acid (Isocaproic) < 0.26 ND 2.6 ND 0.55 142-62-1 Hexanoic Acid (Caproic) 1.1 11 2.6 2.3 0.54 BH 111-14-8 Heptanoic Acid (Enanthoic) < 0.25 ND 2.5 ND 0.47 149-57-5 2-Ethylhexanoic Acid < 0.26 ND 2.6 ND 0.44 98-89-5 Cyclohexanecarboxylic Acid < 0.26 ND 2.6 ND 0.49 124-07-2 Octanoic Acid (Caprylic) < 0.26 ND 2.6 ND 0.44 65-85-0 Benzoic Acid < 0.28 ND 2.8 ND 0.56 112-05-0 Nonanoic Acid (Pelargonic) < 0.25 ND 2.5 ND 0.39

Verified By:______Date:______16. P1200298_Carboxylic Acids.xls - Sample (5) CARBXL.XLS - Page No.: COLUMBIA ANALYTICAL SERVICES, INC.

RESULTS OF ANALYSIS Page 1 of 1

Client: ARCADIS U.S., Inc. Client Sample ID: Method Blank CAS Project ID: P1200298 Client Project ID: Shell Pond - PG&E / B0092353.03.0001C CAS Sample ID: P120131-MB

ND = Compound was analyzed for, but not detected above the laboratory reporting limit. MRL = Method Reporting Limit - The minimum quantity of a target analyte that can be confidently determined by the referenced method. NA = Not applicable. BC = Results reported are not blank corrected. DE = Results reported are corrected for desorption efficiency.

Verified By:______Date:______16. P1200298_Carboxylic Acids.xls - MBlank CARBXL.XLS - Page No.: COLUMBIA ANALYTICAL SERVICES, INC.

LABORATORY CONTROL SAMPLE / DUPLICATE LABORATORY CONTROL SAMPLE SUMMARY Page 1 of 1

Client: ARCADIS U.S., Inc. Client Sample ID: Duplicate Lab Control Sample CAS Project ID: P1200298 Client Project ID: Shell Pond - PG&E / B0092353.03.0001C CAS Sample ID: P120131-DLCS

Verified By:______Date:______16. P1200298_Carboxylic Acids.xls - DLCS CARBXL.XLS - Page No.: 03-Feb-2012

Sue Anderson Columbia Analytical Services, Inc. 2655 Park Center Drive Suite A Simi Valley, CA 93065

Tel: (805) 526-7161 Fax: (805) 526-7270 Re: PG&E Shell Pond; Project No.: P1200272 Work Order: 1202037

Dear Sue, ALS Environmental received 2 samples on 02-Feb-2012 08:50 AM for the analyses presented in the following report. The analytical data provided relates directly to the samples received by ALS Environmental and for only the analyses requested.

QC sample results for this data met laboratory specifications. Any exceptions are noted in the Case Narrative, or noted with qualifiers in the report or QC batch information. Should this laboratory report need to be reproduced, it should be reproduced in full unless written approval has been obtained from ALS Laboratory Group. Samples will be disposed in 30 days unless storage arrangements are made.

The total number of pages in this report is 6.

If you have any questions regarding this report, please feel free to contact me.

Sincerely, Chris G ibson

Electronically approved by: Jim Baxter Chris Gibson Project Manager

ADDRESS 4388 Glendale Milford Rd Cincinnati, Ohio 45242- | PHONE (513) 733-5336 | FAX (513) 733-5347 ALS GROUP USA, CORP Part of the ALS Laboratory Group A Campbell Brothers Limited Company ALS Environmental Date: 03-Feb-12

Client: Columbia Analytical Services, Inc. Project: PG&E Shell Pond; Project No.: P1200272 Work Order Sample Summary Work Order: 1202037

Lab Samp ID Client Sample ID Matrix Tag Number Collection Dat Date Received Hold 1202037-01 SP-A-BAG-012512 Extract 1/25/2012 16:25 2/2/2012 08:50 1202037-02 Lab Method Blank Extract 2/1/2012 2/2/2012 08:50

SS Page 1 of 1 ALS Environmental Date: 03-Feb-12

Client: Columbia Analytical Services, Inc. Project: PG&E Shell Pond; Project No.: P1200272 Case Narrative Work Order: 1202037

The sample condition upon receipt was acceptable except where noted.

Results relate only to the items tested and are not blank corrected unless indicated.

CN Page 1 of 1 ALS Environmental Date: 03-Feb-12

Client: Columbia Analytical Services, Inc. Work Order: 1202037 Project: PG&E Shell Pond; Project No.: P1200272 Analytical Results

Lab ID: 1202037-01A Collection Date: 1/25/2012 4:25:00 PM Client Sample ID: SP-A-BAG-012512 Matrix: EXTRACT Analyses

ALDEHYDES BY HPLC Method:ETO-11 Air Volume (L): 100 Analyst: MHW Date Analyzed: 2/2/2012 15:56 Reporting Limit µg/sample µg/sample ppm 2,5-Dimethylbenzaldehyde ND 0.10 <0.00018 Acetaldehyde 0.56 0.10 0.0031 Benzaldehyde ND 0.10 <0.00023 Crotonaldehyde ND 0.10 <0.00035 Formaldehyde ND 0.10 <0.00081 Hexanaldehyde 0.77 0.10 0.0019 Isovaleraldehyde 0.49 0.10 0.0014 m,p-Tolualdehyde ND 0.10 <0.00020 n-Butyraldehyde 0.21 0.10 0.00071 o-Tolualdehyde ND 0.10 <0.00020 Propionaldehyde 0.11 0.10 0.00047 Valeraldehyde 0.34 0.10 0.00096

Lab ID: 1202037-02A Collection Date: 2/1/2012 Client Sample ID: Lab Method Blank Matrix: EXTRACT Analyses

ALDEHYDES BY HPLC Method:ETO-11 Air Volume (L): 0 Analyst: MHW Date Analyzed: 2/2/2012 14:43 Reporting Limit µg/sample µg/sample ppm 2,5-Dimethylbenzaldehyde ND 0.10 NA Acetaldehyde ND 0.10 NA Benzaldehyde ND 0.10 NA Crotonaldehyde ND 0.10 NA Formaldehyde ND 0.10 NA Hexanaldehyde ND 0.10 NA Isovaleraldehyde ND 0.10 NA m,p-Tolualdehyde ND 0.10 NA n-Butyraldehyde ND 0.10 NA o-Tolualdehyde ND 0.10 NA Propionaldehyde ND 0.10 NA Valeraldehyde ND 0.10 NA

Note:

AR Page 1 of 1 ALS Environmental Date: 03-Feb-12 Client: Columbia Analytical Services, Inc. QC BATCH REPORT Work Order: 1202037 Project: PG&E Shell Pond; Project No.: P1200272

Batch ID: 9755 Instrument ID HPLC2 Method: ETO-11

LCS Sample ID: LCS-9755-9755 Units: µg/sample Analysis Date: 2/2/2012 12:51 PM Client ID: Run ID: HPLC2_120202B SeqNo: 385925 Prep Date: 2/2/2012 DF: 1

SPK Ref Control RPD Ref RPD Analyte Result PQL SPK Val Value %REC Limit Value %RPD Limit Qual

Formaldehyde 2.06 0.10 2 0 103 70-130 0

LCSD Sample ID: LCSD-9755-9755 Units: µg/sample Analysis Date: 2/2/2012 01:29 PM Client ID: Run ID: HPLC2_120202B SeqNo: 385926 Prep Date: 2/2/2012 DF: 1

SPK Ref Control RPD Ref RPD Analyte Result PQL SPK Val Value %REC Limit Value %RPD Limit Qual

Formaldehyde 2.03 0.10 2 0 101 70-130 2.06 1.49 20

The following samples were analyzed in this batch: 1202037-01A 1202037-02A

Note: See Qualifiers Page for a list of Qualifiers and their explanation. QC Page: 1 of 1 ALS Environmental

Sample Receipt Checklist

Client Name: COLUMBIA-SIMIVALLEY Date/Time Received: 02-Feb-12 08:50

Work Order: 1202037 Received by: JNW

Checklist completed by: J an W ilcox 02-Feb-12 Reviewed by: J im B axter 02-Feb-12 eSignature Date eSignature Date

Matrices: Carrier name: UPS

Shipping container/cooler in good condition? Yes No Not Present

Custody seals intact on shipping container/cooler? Yes No Not Present

Custody seals intact on sample bottles? Yes No Not Present

Chain of custody present? Yes No

Chain of custody signed when relinquished and received? Yes No

Chain of custody agrees with sample labels? Yes No

Samples in proper container/bottle? Yes No

Sample containers intact? Yes No

Sufficient sample volume for indicated test? Yes No

All samples received within holding time? Yes No

Container/Temp Blank temperature in compliance? Yes No

Temperature(s)/Thermometer(s): 4.1

Cooler(s)/Kit(s): Water - VOA vials have zero headspace? Yes No No VOA vials submitted

Water - pH acceptable upon receipt? Yes No N/A pH adjusted? Yes No N/A pH adjusted by:

Client Contacted: Date Contacted: Person Contacted:

Contacted By: Regarding:

Comments:

CorrectiveAction:

SRC Page 1 of 1 03-Feb-2012

Sue Anderson Columbia Analytical Services, Inc. 2655 Park Center Drive Suite A Simi Valley, CA 93065

Tel: (805) 526-7161 Fax: (805) 526-7270 Re: Shell Pond PG&E; Project No.: P1200298 Work Order: 1202038

The total number of pages in this report is 6.

If you have any questions regarding this report, please feel free to contact me.

Sincerely, Chris G ibson

Electronically approved by: Jim Baxter Chris Gibson Project Manager

Client: Columbia Analytical Services, Inc. Project: Shell Pond PG&E; Project No.: P1200298 Work Order Sample Summary Work Order: 1202038

Lab Samp ID Client Sample ID Matrix Tag Number Collection Dat Date Received Hold 1202038-01 SP-A-FB-Bag-012612 Extract 1/26/2012 13:09 2/2/2012 08:50 1202038-02 Lab Method Blank Extract 2/1/2012 2/2/2012 08:50

SS Page 1 of 1 ALS Environmental Date: 03-Feb-12

Client: Columbia Analytical Services, Inc. Project: Shell Pond PG&E; Project No.: P1200298 Case Narrative Work Order: 1202038

The sample condition upon receipt was acceptable except where noted.

Results relate only to the items tested and are not blank corrected unless indicated.

CN Page 1 of 1 ALS Environmental Date: 03-Feb-12

Client: Columbia Analytical Services, Inc. Work Order: 1202038 Project: Shell Pond PG&E; Project No.: P1200298 Analytical Results

Lab ID: 1202038-01A Collection Date: 1/26/2012 1:09:00 PM Client Sample ID: SP-A-FB-Bag-012612 Matrix: EXTRACT Analyses

ALDEHYDES BY HPLC Method:ETO-11 Air Volume (L): 100 Analyst: MHW Date Analyzed: 2/2/2012 17:10 Reporting Limit µg/sample µg/sample ppm 2,5-Dimethylbenzaldehyde ND 0.10 <0.00018 Acetaldehyde 2.2 0.10 0.012 Benzaldehyde ND 0.10 <0.00023 Crotonaldehyde ND 0.10 <0.00035 Formaldehyde 1.9 0.10 0.015 Hexanaldehyde 6.6 0.50 0.016 Isovaleraldehyde ND 0.10 <0.00028 m,p-Tolualdehyde ND 0.10 <0.00020 n-Butyraldehyde 0.51 0.10 0.0017 o-Tolualdehyde ND 0.10 <0.00020 Propionaldehyde 0.20 0.10 0.00083 Valeraldehyde 2.6 0.10 0.0073

Lab ID: 1202038-02A Collection Date: 2/1/2012 Client Sample ID: Lab Method Blank Matrix: EXTRACT Analyses

Note:

AR Page 1 of 1 ALS Environmental Date: 03-Feb-12 Client: Columbia Analytical Services, Inc. QC BATCH REPORT Work Order: 1202038 Project: Shell Pond PG&E; Project No.: P1200298

Batch ID: 9755 Instrument ID HPLC2 Method: ETO-11

LCS Sample ID: LCS-9755-9755 Units: µg/sample Analysis Date: 2/2/2012 12:51 PM Client ID: Run ID: HPLC2_120202B SeqNo: 385925 Prep Date: 2/2/2012 DF: 1

SPK Ref Control RPD Ref RPD Analyte Result PQL SPK Val Value %REC Limit Value %RPD Limit Qual

Formaldehyde 2.06 0.10 2 0 103 70-130 0

LCSD Sample ID: LCSD-9755-9755 Units: µg/sample Analysis Date: 2/2/2012 01:29 PM Client ID: Run ID: HPLC2_120202B SeqNo: 385926 Prep Date: 2/2/2012 DF: 1

SPK Ref Control RPD Ref RPD Analyte Result PQL SPK Val Value %REC Limit Value %RPD Limit Qual

Formaldehyde 2.03 0.10 2 0 101 70-130 2.06 1.49 20

The following samples were analyzed in this batch: 1202038-01A 1202038-02A

Note: See Qualifiers Page for a list of Qualifiers and their explanation. QC Page: 1 of 1 ALS Environmental

Sample Receipt Checklist

Client Name: COLUMBIA-SIMIVALLEY Date/Time Received: 02-Feb-12 08:50

Work Order: 1202038 Received by: JNW

Checklist completed by: J an W ilcox 02-Feb-12 Reviewed by: J im B axter 02-Feb-12 eSignature Date eSignature Date

Matrices: Carrier name: UPS

Shipping container/cooler in good condition? Yes No Not Present

Custody seals intact on shipping container/cooler? Yes No Not Present

Custody seals intact on sample bottles? Yes No Not Present

Chain of custody present? Yes No

Chain of custody signed when relinquished and received? Yes No

Chain of custody agrees with sample labels? Yes No

Samples in proper container/bottle? Yes No

Sample containers intact? Yes No

Sufficient sample volume for indicated test? Yes No

All samples received within holding time? Yes No

Container/Temp Blank temperature in compliance? Yes No

Temperature(s)/Thermometer(s): 4.1

Cooler(s)/Kit(s): Water - VOA vials have zero headspace? Yes No No VOA vials submitted

Water - pH acceptable upon receipt? Yes No N/A pH adjusted? Yes No N/A pH adjusted by:

Client Contacted: Date Contacted: Person Contacted:

Contacted By: Regarding:

Comments:

CorrectiveAction:

SRC Page 1 of 1 Table 1. Return Water Sample Results Shell Pond Remediation and Wetland Restoration Project PGE Shell Pond Site, Bay Point, CA

Metals (mg/L) Antimony <0.015 <0.015 <0.0150 0.021 0.00801 -- 15 -- Arsenic <0.01 <0.01 <0.0100 <0.01 <0.0100 5 5 0.036 Barium 0.0772 0.21 0.0718 0.175 0.155 100 100 -- Beryllium <0.01 <0.01 <0.0100 <0.01 0.00731 -- 0.75 -- Cadmium <0.01 <0.01 <0.0100 <0.01 <0.0100 1 1 0.0093 Chromium <0.01 0.0722 0.0105 0.0517 0.007 5 5 -- Cobalt <0.01 <0.01 <0.0100 <0.01 <0.0100 -- 80 -- Copper <0.01 0.0796 <0.0100 0.0341 0.00779 -- 25 0.009 Lead <0.01 0.0212 <0.0100 0.0267 <0.0100 5 5 0.0081 Mercury <0.0005 <0.0005 <0.0005 <0.0005 0.0000596 0.2 0.2 0.000025 Molybdenum 0.0617 0.0749 0.052 0.0564 0.0676 -- 350 -- Nickel <0.01 0.0447 0.0111 0.0233 0.0069 -- 20 0.0082 Selenium <0.015 <0.015 <0.0150 <0.015 0.00789 1 1 -- Silver <0.005 <0.005 <0.00500 <0.005 <0.00500 5 5 0.0019 Thallium <0.015 <0.015 <0.0150 <0.015 0.0142 -- 7 -- Vanadium <0.01 0.0445 <0.0100 0.0333 0.00418 -- 24 -- Zinc 0.126 1.02 0.0851 0.0933 0.0573 -- 250 0.081

Total Suspended Solids (TSS) (mg/L) Solids, Total Suspended 45 462 110 242 73 -- -- 65

Total Petroleum Hydrocarbon (TPH) with Carbon Chain Breakdown (ug/L) C6 <50 <250 <250 <250 <50 ------C7 <50 <250 <250 <250 8.4 ------C8 <50 <250 <250 <250 27 ------C9-C10 190 490 <250 <250 260 ------C11-C12 330 850 430 450 520 ------C13-C14 400 1000 580 570 660 ------C15-C16 470 1000 650 640 750 ------C17-C18 430 840 640 590 670 ------C19-C20 280 570 380 350 500 ------C21-C22 160 300 <250 <250 310 ------C23-C24 140 <250 <250 <250 150 ------C25-C28 <50 <250 <250 <250 47 ------C29-C32 <50 <250 <250 <250 89 ------C33-C36 <50 <250 <250 <250 51 ------C37-C40 <50 <250 <250 <250 33 ------C41-C44 <50 <250 <250 <250 <50 ------C6-C44 Total 2500 5500 3600 3000 4100 ------

2/4/2012 ARCADIS Page 1 of 3 Table 1. Return Water Sample Results Shell Pond Remediation and Wetland Restoration Project PGE Shell Pond Site, Bay Point, CA

Volatile Organic Compounds (VOCs) (ug/L) Acetone 34 140 33 22 20 ------Benzene <0.5 0.56 <0.50 <0.5 0.2 500 -- -- Bromobenzene <1 <1 <1.0 <1 <1.0 ------Bromochloromethane <1 <1 <1.0 <1 <1.0 ------Bromodichloromethane <1 <1 <1.0 <1 <1.0 ------Bromoform <1 <1 <1.0 <1 <1.0 ------Bromomethane <10 <10 <10 <10 <10 ------2-Butanone <10 <10 <10 <10 5.3 200,000 -- -- n-Butylbenzene 1.2 2.8 1.7 <1 0.72 ------sec-Butylbenzene <1 <1 <1.0 <1 0.31 ------tert-Butylbenzene <1 <1 <1.0 <1 <1.0 ------Carbon Disulfide <10 <10 <10 <10 <10 ------Carbon Tetrachloride <0.5 <0.5 <0.50 <0.5 <0.50 500 -- -- Chlorobenzene <1 <1 <1.0 <1 <1.0 100,000 -- -- Chloroethane <5 <5 <5.0 <5 <5.0 ------Chloroform <1 <1 <1.0 <1 <1.0 6,000 -- -- Chloromethane <10 <10 <10 <10 <10 ------2-Chlorotoluene <1 <1 <1.0 <1 <1.0 ------4-Chlorotoluene <1 <1 <1.0 <1 <1.0 ------Dibromochloromethane <1 <1 <1.0 <1 <1.0 ------1,2-Dibromo-3-Chloropropane <5 <5 <5.0 <5 <5.0 ------1,2-Dibromoethane <1 <1 <1.0 <1 <1.0 ------Dibromomethane <1 <1 <1.0 <1 <1.0 ------1,2-Dichlorobenzene <1 <10 <1.0 <10 <1.0 ------1,3-Dichlorobenzene <1 <10 <1.0 <10 <1.0 ------1,4-Dichlorobenzene <1 <10 <1.0 <10 <1.0 7,500 -- -- Dichlorodifluoromethane <1 <1 <1.0 <1 <1.0 ------1,1-Dichloroethane <1 <1 <1.0 <1 <1.0 ------1,2-Dichloroethane <0.5 <0.5 <0.50 <0.5 <0.50 500 -- -- 1,1-Dichloroethene <1 <1 <1.0 <1 <1.0 700 -- --

2/4/2012 ARCADIS Page 2 of 3 Table 1. Return Water Sample Results Shell Pond Remediation and Wetland Restoration Project PGE Shell Pond Site, Bay Point, CA

Shell Pond Return Water Sample Results Guideline Values Sample ID SP-RW1-010912 SP-RW2-011012 SP-RW-011112 SP-RW-011212 SP-RW-011312 TCLP a STLC a Surface Water Criteria b Sample Date 1/9/2012 1/10/2012 1/11/2012 1/12/2012 1/13/2012 Analyte c-1,2-Dichloroethene <1 <1 <1.0 <1 <1.0 ------t-1,2-Dichloroethene <1 <1 <1.0 <1 <1.0 ------1,2-Dichloropropane <1 <1 <1.0 <1 <1.0 ------1,3-Dichloropropane <1 <1 <1.0 <1 <1.0 ------2,2-Dichloropropane <1 <1 <1.0 <1 <1.0 ------1,1-Dichloropropene <1 <1 <1.0 <1 <1.0 ------c-1,3-Dichloropropene <0.5 <0.5 <0.50 <0.5 <0.50 ------t-1,3-Dichloropropene <0.5 <0.5 <0.50 <0.5 <0.50 ------Ethylbenzene 1.3 1.7 <1.0 <1 0.49 ------2-Hexanone <10 <10 <10 <10 <10 ------Isopropylbenzene <1 1.1 <1.0 <1 <1.0 ------p-Isopropyltoluene <1 1.1 <1.0 <1 0.42 ------Methylene Chloride <10 <10 <10 <10 <10 ------4-Methyl-2-Pentanone <10 <10 <10 <10 <10 ------Naphthalene <0.2 <10 <10 <10 <0.20 ------n-Propylbenzene 1.1 1.9 1.2 <1 0.79 ------Styrene <1 <1 <1.0 <1 <1.0 ------1,1,1,2-Tetrachloroethane <1 <1 <1.0 <1 <1.0 ------1,1,2,2-Tetrachloroethane <1 <1 <1.0 <1 <1.0 ------Tetrachloroethene <1 <1 <1.0 <1 <1.0 700 -- -- Toluene <1 <1 <1.0 <1 0.25 ------1,2,3-Trichlorobenzene <1 <1 <1.0 <1 <1.0 ------1,2,4-Trichlorobenzene <1 <10 <1.0 <10 <1.0 ------1,1,1-Trichloroethane <1 <1 <1.0 <1 <1.0 ------1,1,2-Trichloro-1,2,2-Trifluoroethane <10 <10 <10 <10 <10 ------1,1,2-Trichloroethane <1 <1 <1.0 <1 <1.0 ------Trichloroethene <1 <1 <1.0 <1 <1.0 500 204,000 -- Trichlorofluoromethane <10 <10 <10 <10 <10 ------1,2,3-Trichloropropane <5 <5 <5.0 <5 <5.0 ------1,2,4-Trimethylbenzene 8.5 9.3 1.6 <1 1.9 ------1,3,5-Trimethylbenzene 2.9 3 <1.0 <1 0.29 ------Vinyl Acetate <10 <10 <10 <10 <10 ------Vinyl Chloride <0.5 <0.5 <0.50 <0.5 <0.50 200 -- -- p/m-Xylene 2.3 3.3 <1.0 <1 0.32 ------o-Xylene 1.1 1.6 <1.0 <1 0.29 ------Methyl-t-Butyl Ether (MTBE) <1 <1 <1.0 <1 <1.0 ------mg/L miligrams per liter ug/L micrograms per liter PG&E Pacific Gas and Electric TCLP Toxicity Characteristic Leaching Procedure STLC Soluble Threshold Limit Concentration <100 Not detected at the indicated method reporting limit 100 Bolded values indicate concentration levels above laboratory reporting limit Detected concentration level above TCLP (if applicable) Detected concentration level above STLC (if applicable) Detected concentration level above surface water criteria (if applicable) a. Screening Level selected from Federal (RCRA-TCLP) and State (Title 22-STLC,TTLC) Hazardous Waste Criteria. b. San Francisco Bay Regional Water Quality Control Board. 2010. SanFrancisco Bay Basin Water Quality Control Plan. Basin Plan UpdateSurface Water Bodies and Beneficial Uses. February 24. San Francisco Bay Regional Water Quality Control Board. 2007. SanFrancisco Bay Basin (Region 2) Water Quality Control Plan (BasinPlan). January 18. c. Total shown is sum of all deteced concentration levels of PAHs.

2/4/2012 ARCADIS Page 3 of 3 Page 1 of 30

WORK ORDER NUMBER: 12-01-0563

Analytical Report For Client: Arcadis US, Inc. Client Project Name: Shell Ponds / Bay Point, CA / B0092353.0003 Attention: Josh Gravenmier 2999 Oak Road, Suite 300 Walnut Creek, CA 94597-2537

01/18/2012 Ranjit Clarke Project Manager Page 2 of 30

Contents Client Project Name: Shell Ponds / Bay Point, CA / B0092353.0003 Work Order Number: 12-01-0563

1 Client Sample Data ...... 3 1.1 EPA 8015B (M) C6-C44 (Aqueous) ...... 3 1.2 EPA 8270C SIM PAHs (Aqueous) ...... 5 1.3 EPA 8260B Volatile Organics (Aqueous) ...... 7 1.4 EPA 6010B/7470A CAC Title 22 Metals / EPA 7470A Mercury 13 1.5 Combined Inorganic Tests ...... 15

2 Quality Control Sample Data ...... 16 2.1 MS/MSD and/or Duplicate ...... 16 2.2 LCS/LCSD ...... 22

3 Glossary of Terms and Qualifiers ...... 28

4 Chain of Custody/Sample Receipt Form ...... 29 Page 3 of 30

Analytical Report

Arcadis US, Inc. Date Received: 01/11/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8015B (M) Units: ug/L Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 1 of 2

Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID SP-RW1-010912 12-01-0563-1-I 01/09/12 Aqueous GC 48 01/12/12 01/13/12 120112B09A 17:45 06:02

Comment(s): -The total concentration includes individual carbon range concentrations (estimated), if any, below the RL reported as ND. Parameter Result RL DF Qual Parameter Result RL DF Qual C6 ND 50 1 C21-C22 160 50 1 C7 ND 50 1 C23-C24 140 50 1 C8 ND 50 1 C25-C28 ND 50 1 C9-C10 190 50 1 C29-C32 ND 50 1 C11-C12 330 50 1 C33-C36 ND 50 1 C13-C14 400 50 1 C37-C40 ND 50 1 C15-C16 470 50 1 C41-C44 ND 50 1 C17-C18 430 50 1 C6-C44 Total 2500 50 1 C19-C20 280 50 1 Surrogates: REC (%) Control Qual Limits Decachlorobiphenyl 94 68-140 SP-RW2-011012 12-01-0563-2-I 01/10/12 Aqueous GC 48 01/12/12 01/13/12 120112B09A 11:15 06:16

C8 ND 250 5 C25-C28 ND 250 5 Return to Contents C9-C10 490 250 5 C29-C32 ND 250 5 C11-C12 850 250 5 C33-C36 ND 250 5 C13-C14 1000 250 5 C37-C40 ND 250 5 C15-C16 1000 250 5 C41-C44 ND 250 5 C17-C18 840 250 5 C6-C44 Total 5500 250 5 C19-C20 570 250 5 Surrogates: REC (%) Control Qual Limits Decachlorobiphenyl 107 68-140

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID Method Blank 099-14-065-134 N/A Aqueous GC 48 01/12/12 01/13/12 120112B09A 04:04

Parameter Result RL DF Qual Parameter Result RL DF Qual C6 ND 50 1 C21-C22 ND 50 1 C7 ND 50 1 C23-C24 ND 50 1 C8 ND 50 1 C25-C28 ND 50 1 C9-C10 ND 50 1 C29-C32 ND 50 1 C11-C12 ND 50 1 C33-C36 ND 50 1 C13-C14 ND 50 1 C37-C40 ND 50 1 C15-C16 ND 50 1 C41-C44 ND 50 1 C17-C18 ND 50 1 C6-C44 Total ND 50 1 C19-C20 ND 50 1 Surrogates: REC (%) Control Qual Limits Decachlorobiphenyl 105 68-140 Return to Contents

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/11/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8270C SIM PAHs Units: ug/L Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 1 of 2

Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID SP-RW1-010912 12-01-0563-1-G 01/09/12 Aqueous GC/MS AAA 01/12/12 01/17/12 120112L08 17:45 15:30

Parameter Result RL DF Qual Parameter Result RL DF Qual Naphthalene ND 0.20 1 Pyrene 1.7 0.20 1 2-Methylnaphthalene 0.53 0.20 1 Benzo (a) Anthracene ND 0.20 1 1-Methylnaphthalene 6.1 0.20 1 Chrysene ND 0.20 1 Acenaphthylene ND 0.20 1 Benzo (k) Fluoranthene ND 0.20 1 Acenaphthene 0.41 0.20 1 Benzo (b) Fluoranthene ND 0.20 1 Fluorene 0.25 0.20 1 Benzo (a) Pyrene ND 0.20 1 Phenanthrene 0.59 0.20 1 Indeno (1,2,3-c,d) Pyrene ND 0.20 1 Anthracene ND 0.20 1 Dibenz (a,h) Anthracene ND 0.20 1 Fluoranthene 0.42 0.20 1 Benzo (g,h,i) Perylene 0.57 0.20 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits Nitrobenzene-d5 83 28-139 2-Fluorobiphenyl 66 33-144 p-Terphenyl-d14 70 23-160 SP-RW2-011012 12-01-0563-2-G 01/10/12 Aqueous GC/MS AAA 01/12/12 01/17/12 120112L08 11:15 16:23

Parameter Result RL DF Qual Parameter Result RL DF Qual Naphthalene 3.2 0.40 2 Pyrene 16 0.40 2 2-Methylnaphthalene 4.1 0.40 2 Benzo (a) Anthracene ND 0.40 2 1-Methylnaphthalene 12 0.40 2 Chrysene ND 0.40 2 Acenaphthylene 0.72 0.40 2 Benzo (k) Fluoranthene ND 0.40 2 Return to Contents Acenaphthene 0.71 0.40 2 Benzo (b) Fluoranthene ND 0.40 2 Fluorene 0.51 0.40 2 Benzo (a) Pyrene 0.73 0.40 2 Phenanthrene 1.8 0.40 2 Indeno (1,2,3-c,d) Pyrene 0.77 0.40 2 Anthracene ND 0.40 2 Dibenz (a,h) Anthracene ND 0.40 2 Fluoranthene 3.7 0.40 2 Benzo (g,h,i) Perylene 7.6 0.40 2 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits Nitrobenzene-d5 72 28-139 2-Fluorobiphenyl 78 33-144 p-Terphenyl-d14 78 23-160

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID Method Blank 099-06-008-424 N/A Aqueous GC/MS AAA 01/12/12 01/18/12 120112L08 12:19

Parameter Result RL DF Qual Parameter Result RL DF Qual Naphthalene ND 0.20 1 Pyrene ND 0.20 1 2-Methylnaphthalene ND 0.20 1 Benzo (a) Anthracene ND 0.20 1 1-Methylnaphthalene ND 0.20 1 Chrysene ND 0.20 1 Acenaphthylene ND 0.20 1 Benzo (k) Fluoranthene ND 0.20 1 Acenaphthene ND 0.20 1 Benzo (b) Fluoranthene ND 0.20 1 Fluorene ND 0.20 1 Benzo (a) Pyrene ND 0.20 1 Phenanthrene ND 0.20 1 Indeno (1,2,3-c,d) Pyrene ND 0.20 1 Anthracene ND 0.20 1 Dibenz (a,h) Anthracene ND 0.20 1 Fluoranthene ND 0.20 1 Benzo (g,h,i) Perylene ND 0.20 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits Nitrobenzene-d5 108 28-139 2-Fluorobiphenyl 84 33-144 p-Terphenyl-d14 90 23-160 Return to Contents

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/11/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 5030C Method: EPA 8260B Units: ug/L Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 1 of 6

Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID SP-RW1-010912 12-01-0563-1-B 01/09/12 Aqueous GC/MS XX 01/12/12 01/12/12 120112L01 17:45 19:56

Parameter Result RL DF Qual Parameter Result RL DF Qual Acetone 34 20 1 1,3-Dichloropropane ND 1.0 1 Benzene ND 0.50 1 2,2-Dichloropropane ND 1.0 1 Bromobenzene ND 1.0 1 1,1-Dichloropropene ND 1.0 1 Bromochloromethane ND 1.0 1 c-1,3-Dichloropropene ND 0.50 1 Bromodichloromethane ND 1.0 1 t-1,3-Dichloropropene ND 0.50 1 Bromoform ND 1.0 1 Ethylbenzene 1.3 1.0 1 Bromomethane ND 10 1 2-Hexanone ND 10 1 2-Butanone ND 10 1 Isopropylbenzene ND 1.0 1 n-Butylbenzene 1.2 1.0 1 p-Isopropyltoluene ND 1.0 1 sec-Butylbenzene ND 1.0 1 Methylene Chloride ND 10 1 tert-Butylbenzene ND 1.0 1 4-Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND 0.50 1 n-Propylbenzene 1.1 1.0 1 Chlorobenzene ND 1.0 1 Styrene ND 1.0 1 Chloroethane ND 5.0 1 1,1,1,2-Tetrachloroethane ND 1.0 1 Chloroform ND 1.0 1 1,1,2,2-Tetrachloroethane ND 1.0 1 Chloromethane ND 10 1 Tetrachloroethene ND 1.0 1 2-Chlorotoluene ND 1.0 1 Toluene ND 1.0 1 4-Chlorotoluene ND 1.0 1 1,2,3-Trichlorobenzene ND 1.0 1 Dibromochloromethane ND 1.0 1 1,2,4-Trichlorobenzene ND 1.0 1 1,2-Dibromo-3-Chloropropane ND 5.0 1 1,1,1-Trichloroethane ND 1.0 1 1,2-Dibromoethane ND 1.0 1 1,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Return to Contents Dibromomethane ND 1.0 1 1,1,2-Trichloroethane ND 1.0 1 1,2-Dichlorobenzene ND 1.0 1 Trichloroethene ND 1.0 1 1,3-Dichlorobenzene ND 1.0 1 Trichlorofluoromethane ND 10 1 1,4-Dichlorobenzene ND 1.0 1 1,2,3-Trichloropropane ND 5.0 1 Dichlorodifluoromethane ND 1.0 1 1,2,4-Trimethylbenzene 8.5 1.0 1 1,1-Dichloroethane ND 1.0 1 1,3,5-Trimethylbenzene 2.9 1.0 1 1,2-Dichloroethane ND 0.50 1 Vinyl Acetate ND 10 1 1,1-Dichloroethene ND 1.0 1 Vinyl Chloride ND 0.50 1 c-1,2-Dichloroethene ND 1.0 1 p/m-Xylene 2.3 1.0 1 t-1,2-Dichloroethene ND 1.0 1 o-Xylene 1.1 1.0 1 1,2-Dichloropropane ND 1.0 1 Methyl-t-Butyl Ether (MTBE) ND 1.0 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits 1,4-Bromofluorobenzene 103 80-120 Dibromofluoromethane 113 80-126 1,2-Dichloroethane-d4 110 80-134 Toluene-d8 105 80-120

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID SP-RW2-011012 12-01-0563-2-B 01/10/12 Aqueous GC/MS XX 01/12/12 01/12/12 120112L01 11:15 20:24

Parameter Result RL DF Qual Parameter Result RL DF Qual Acetone 140 20 1 1,3-Dichloropropane ND 1.0 1 Benzene 0.56 0.50 1 2,2-Dichloropropane ND 1.0 1 Bromobenzene ND 1.0 1 1,1-Dichloropropene ND 1.0 1 Bromochloromethane ND 1.0 1 c-1,3-Dichloropropene ND 0.50 1 Bromodichloromethane ND 1.0 1 t-1,3-Dichloropropene ND 0.50 1 Bromoform ND 1.0 1 Ethylbenzene 1.7 1.0 1 Bromomethane ND 10 1 2-Hexanone ND 10 1 2-Butanone ND 10 1 Isopropylbenzene 1.1 1.0 1 n-Butylbenzene 2.8 1.0 1 p-Isopropyltoluene 1.1 1.0 1 sec-Butylbenzene ND 1.0 1 Methylene Chloride ND 10 1 tert-Butylbenzene ND 1.0 1 4-Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND 0.50 1 n-Propylbenzene 1.9 1.0 1 Chlorobenzene ND 1.0 1 Styrene ND 1.0 1 Chloroethane ND 5.0 1 1,1,1,2-Tetrachloroethane ND 1.0 1 Chloroform ND 1.0 1 1,1,2,2-Tetrachloroethane ND 1.0 1 Chloromethane ND 10 1 Tetrachloroethene ND 1.0 1 2-Chlorotoluene ND 1.0 1 Toluene ND 1.0 1 4-Chlorotoluene ND 1.0 1 1,2,3-Trichlorobenzene ND 1.0 1 Dibromochloromethane ND 1.0 1 1,2,4-Trichlorobenzene ND 1.0 1 1,2-Dibromo-3-Chloropropane ND 5.0 1 1,1,1-Trichloroethane ND 1.0 1 1,2-Dibromoethane ND 1.0 1 1,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Return to Contents Dibromomethane ND 1.0 1 1,1,2-Trichloroethane ND 1.0 1 1,2-Dichlorobenzene ND 1.0 1 Trichloroethene ND 1.0 1 1,3-Dichlorobenzene ND 1.0 1 Trichlorofluoromethane ND 10 1 1,4-Dichlorobenzene ND 1.0 1 1,2,3-Trichloropropane ND 5.0 1 Dichlorodifluoromethane ND 1.0 1 1,2,4-Trimethylbenzene 9.3 1.0 1 1,1-Dichloroethane ND 1.0 1 1,3,5-Trimethylbenzene 3.0 1.0 1 1,2-Dichloroethane ND 0.50 1 Vinyl Acetate ND 10 1 1,1-Dichloroethene ND 1.0 1 Vinyl Chloride ND 0.50 1 c-1,2-Dichloroethene ND 1.0 1 p/m-Xylene 3.3 1.0 1 t-1,2-Dichloroethene ND 1.0 1 o-Xylene 1.6 1.0 1 1,2-Dichloropropane ND 1.0 1 Methyl-t-Butyl Ether (MTBE) ND 1.0 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits 1,4-Bromofluorobenzene 107 80-120 Dibromofluoromethane 110 80-126 1,2-Dichloroethane-d4 110 80-134 Toluene-d8 104 80-120

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID SP-TB1-010912 12-01-0563-3-A 01/09/12 Aqueous GC/MS XX 01/11/12 01/11/12 120111L01 00:00 18:59

Parameter Result RL DF Qual Parameter Result RL DF Qual Acetone ND 20 1 1,3-Dichloropropane ND 1.0 1 Benzene ND 0.50 1 2,2-Dichloropropane ND 1.0 1 Bromobenzene ND 1.0 1 1,1-Dichloropropene ND 1.0 1 Bromochloromethane ND 1.0 1 c-1,3-Dichloropropene ND 0.50 1 Bromodichloromethane ND 1.0 1 t-1,3-Dichloropropene ND 0.50 1 Bromoform ND 1.0 1 Ethylbenzene ND 1.0 1 Bromomethane ND 10 1 2-Hexanone ND 10 1 2-Butanone ND 10 1 Isopropylbenzene ND 1.0 1 n-Butylbenzene ND 1.0 1 p-Isopropyltoluene ND 1.0 1 sec-Butylbenzene ND 1.0 1 Methylene Chloride ND 10 1 tert-Butylbenzene ND 1.0 1 4-Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND 0.50 1 n-Propylbenzene ND 1.0 1 Chlorobenzene ND 1.0 1 Styrene ND 1.0 1 Chloroethane ND 5.0 1 1,1,1,2-Tetrachloroethane ND 1.0 1 Chloroform ND 1.0 1 1,1,2,2-Tetrachloroethane ND 1.0 1 Chloromethane ND 10 1 Tetrachloroethene ND 1.0 1 2-Chlorotoluene ND 1.0 1 Toluene ND 1.0 1 4-Chlorotoluene ND 1.0 1 1,2,3-Trichlorobenzene ND 1.0 1 Dibromochloromethane ND 1.0 1 1,2,4-Trichlorobenzene ND 1.0 1 1,2-Dibromo-3-Chloropropane ND 5.0 1 1,1,1-Trichloroethane ND 1.0 1 1,2-Dibromoethane ND 1.0 1 1,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Return to Contents Dibromomethane ND 1.0 1 1,1,2-Trichloroethane ND 1.0 1 1,2-Dichlorobenzene ND 1.0 1 Trichloroethene ND 1.0 1 1,3-Dichlorobenzene ND 1.0 1 Trichlorofluoromethane ND 10 1 1,4-Dichlorobenzene ND 1.0 1 1,2,3-Trichloropropane ND 5.0 1 Dichlorodifluoromethane ND 1.0 1 1,2,4-Trimethylbenzene ND 1.0 1 1,1-Dichloroethane ND 1.0 1 1,3,5-Trimethylbenzene ND 1.0 1 1,2-Dichloroethane ND 0.50 1 Vinyl Acetate ND 10 1 1,1-Dichloroethene ND 1.0 1 Vinyl Chloride ND 0.50 1 c-1,2-Dichloroethene ND 1.0 1 p/m-Xylene ND 1.0 1 t-1,2-Dichloroethene ND 1.0 1 o-Xylene ND 1.0 1 1,2-Dichloropropane ND 1.0 1 Methyl-t-Butyl Ether (MTBE) ND 1.0 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits 1,4-Bromofluorobenzene 98 80-120 Dibromofluoromethane 112 80-126 1,2-Dichloroethane-d4 111 80-134 Toluene-d8 101 80-120

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID SP-TB2-011012 12-01-0563-4-A 01/10/12 Aqueous GC/MS XX 01/11/12 01/11/12 120111L01 00:00 19:27

Parameter Result RL DF Qual Parameter Result RL DF Qual Acetone ND 20 1 1,3-Dichloropropane ND 1.0 1 Benzene ND 0.50 1 2,2-Dichloropropane ND 1.0 1 Bromobenzene ND 1.0 1 1,1-Dichloropropene ND 1.0 1 Bromochloromethane ND 1.0 1 c-1,3-Dichloropropene ND 0.50 1 Bromodichloromethane ND 1.0 1 t-1,3-Dichloropropene ND 0.50 1 Bromoform ND 1.0 1 Ethylbenzene ND 1.0 1 Bromomethane ND 10 1 2-Hexanone ND 10 1 2-Butanone ND 10 1 Isopropylbenzene ND 1.0 1 n-Butylbenzene ND 1.0 1 p-Isopropyltoluene ND 1.0 1 sec-Butylbenzene ND 1.0 1 Methylene Chloride ND 10 1 tert-Butylbenzene ND 1.0 1 4-Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND 0.50 1 n-Propylbenzene ND 1.0 1 Chlorobenzene ND 1.0 1 Styrene ND 1.0 1 Chloroethane ND 5.0 1 1,1,1,2-Tetrachloroethane ND 1.0 1 Chloroform ND 1.0 1 1,1,2,2-Tetrachloroethane ND 1.0 1 Chloromethane ND 10 1 Tetrachloroethene ND 1.0 1 2-Chlorotoluene ND 1.0 1 Toluene ND 1.0 1 4-Chlorotoluene ND 1.0 1 1,2,3-Trichlorobenzene ND 1.0 1 Dibromochloromethane ND 1.0 1 1,2,4-Trichlorobenzene ND 1.0 1 1,2-Dibromo-3-Chloropropane ND 5.0 1 1,1,1-Trichloroethane ND 1.0 1 1,2-Dibromoethane ND 1.0 1 1,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Return to Contents Dibromomethane ND 1.0 1 1,1,2-Trichloroethane ND 1.0 1 1,2-Dichlorobenzene ND 1.0 1 Trichloroethene ND 1.0 1 1,3-Dichlorobenzene ND 1.0 1 Trichlorofluoromethane ND 10 1 1,4-Dichlorobenzene ND 1.0 1 1,2,3-Trichloropropane ND 5.0 1 Dichlorodifluoromethane ND 1.0 1 1,2,4-Trimethylbenzene ND 1.0 1 1,1-Dichloroethane ND 1.0 1 1,3,5-Trimethylbenzene ND 1.0 1 1,2-Dichloroethane ND 0.50 1 Vinyl Acetate ND 10 1 1,1-Dichloroethene ND 1.0 1 Vinyl Chloride ND 0.50 1 c-1,2-Dichloroethene ND 1.0 1 p/m-Xylene ND 1.0 1 t-1,2-Dichloroethene ND 1.0 1 o-Xylene ND 1.0 1 1,2-Dichloropropane ND 1.0 1 Methyl-t-Butyl Ether (MTBE) ND 1.0 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits 1,4-Bromofluorobenzene 98 80-120 Dibromofluoromethane 113 80-126 1,2-Dichloroethane-d4 111 80-134 Toluene-d8 102 80-120

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID Method Blank 099-14-001-6,761 N/A Aqueous GC/MS XX 01/11/12 01/11/12 120111L01 12:02

Parameter Result RL DF Qual Parameter Result RL DF Qual Acetone ND 20 1 1,3-Dichloropropane ND 1.0 1 Benzene ND 0.50 1 2,2-Dichloropropane ND 1.0 1 Bromobenzene ND 1.0 1 1,1-Dichloropropene ND 1.0 1 Bromochloromethane ND 1.0 1 c-1,3-Dichloropropene ND 0.50 1 Bromodichloromethane ND 1.0 1 t-1,3-Dichloropropene ND 0.50 1 Bromoform ND 1.0 1 Ethylbenzene ND 1.0 1 Bromomethane ND 10 1 2-Hexanone ND 10 1 2-Butanone ND 10 1 Isopropylbenzene ND 1.0 1 n-Butylbenzene ND 1.0 1 p-Isopropyltoluene ND 1.0 1 sec-Butylbenzene ND 1.0 1 Methylene Chloride ND 10 1 tert-Butylbenzene ND 1.0 1 4-Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND 0.50 1 n-Propylbenzene ND 1.0 1 Chlorobenzene ND 1.0 1 Styrene ND 1.0 1 Chloroethane ND 5.0 1 1,1,1,2-Tetrachloroethane ND 1.0 1 Chloroform ND 1.0 1 1,1,2,2-Tetrachloroethane ND 1.0 1 Chloromethane ND 10 1 Tetrachloroethene ND 1.0 1 2-Chlorotoluene ND 1.0 1 Toluene ND 1.0 1 4-Chlorotoluene ND 1.0 1 1,2,3-Trichlorobenzene ND 1.0 1 Dibromochloromethane ND 1.0 1 1,2,4-Trichlorobenzene ND 1.0 1 1,2-Dibromo-3-Chloropropane ND 5.0 1 1,1,1-Trichloroethane ND 1.0 1 1,2-Dibromoethane ND 1.0 1 1,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Return to Contents Dibromomethane ND 1.0 1 1,1,2-Trichloroethane ND 1.0 1 1,2-Dichlorobenzene ND 1.0 1 Trichloroethene ND 1.0 1 1,3-Dichlorobenzene ND 1.0 1 Trichlorofluoromethane ND 10 1 1,4-Dichlorobenzene ND 1.0 1 1,2,3-Trichloropropane ND 5.0 1 Dichlorodifluoromethane ND 1.0 1 1,2,4-Trimethylbenzene ND 1.0 1 1,1-Dichloroethane ND 1.0 1 1,3,5-Trimethylbenzene ND 1.0 1 1,2-Dichloroethane ND 0.50 1 Vinyl Acetate ND 10 1 1,1-Dichloroethene ND 1.0 1 Vinyl Chloride ND 0.50 1 c-1,2-Dichloroethene ND 1.0 1 p/m-Xylene ND 1.0 1 t-1,2-Dichloroethene ND 1.0 1 o-Xylene ND 1.0 1 1,2-Dichloropropane ND 1.0 1 Methyl-t-Butyl Ether (MTBE) ND 1.0 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits 1,4-Bromofluorobenzene 99 80-120 Dibromofluoromethane 108 80-126 1,2-Dichloroethane-d4 105 80-134 Toluene-d8 101 80-120

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID Method Blank 099-14-001-6,775 N/A Aqueous GC/MS XX 01/12/12 01/12/12 120112L01 12:03

Parameter Result RL DF Qual Parameter Result RL DF Qual Acetone ND 20 1 1,3-Dichloropropane ND 1.0 1 Benzene ND 0.50 1 2,2-Dichloropropane ND 1.0 1 Bromobenzene ND 1.0 1 1,1-Dichloropropene ND 1.0 1 Bromochloromethane ND 1.0 1 c-1,3-Dichloropropene ND 0.50 1 Bromodichloromethane ND 1.0 1 t-1,3-Dichloropropene ND 0.50 1 Bromoform ND 1.0 1 Ethylbenzene ND 1.0 1 Bromomethane ND 10 1 2-Hexanone ND 10 1 2-Butanone ND 10 1 Isopropylbenzene ND 1.0 1 n-Butylbenzene ND 1.0 1 p-Isopropyltoluene ND 1.0 1 sec-Butylbenzene ND 1.0 1 Methylene Chloride ND 10 1 tert-Butylbenzene ND 1.0 1 4-Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND 0.50 1 n-Propylbenzene ND 1.0 1 Chlorobenzene ND 1.0 1 Styrene ND 1.0 1 Chloroethane ND 5.0 1 1,1,1,2-Tetrachloroethane ND 1.0 1 Chloroform ND 1.0 1 1,1,2,2-Tetrachloroethane ND 1.0 1 Chloromethane ND 10 1 Tetrachloroethene ND 1.0 1 2-Chlorotoluene ND 1.0 1 Toluene ND 1.0 1 4-Chlorotoluene ND 1.0 1 1,2,3-Trichlorobenzene ND 1.0 1 Dibromochloromethane ND 1.0 1 1,2,4-Trichlorobenzene ND 1.0 1 1,2-Dibromo-3-Chloropropane ND 5.0 1 1,1,1-Trichloroethane ND 1.0 1 1,2-Dibromoethane ND 1.0 1 1,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Return to Contents Dibromomethane ND 1.0 1 1,1,2-Trichloroethane ND 1.0 1 1,2-Dichlorobenzene ND 1.0 1 Trichloroethene ND 1.0 1 1,3-Dichlorobenzene ND 1.0 1 Trichlorofluoromethane ND 10 1 1,4-Dichlorobenzene ND 1.0 1 1,2,3-Trichloropropane ND 5.0 1 Dichlorodifluoromethane ND 1.0 1 1,2,4-Trimethylbenzene ND 1.0 1 1,1-Dichloroethane ND 1.0 1 1,3,5-Trimethylbenzene ND 1.0 1 1,2-Dichloroethane ND 0.50 1 Vinyl Acetate ND 10 1 1,1-Dichloroethene ND 1.0 1 Vinyl Chloride ND 0.50 1 c-1,2-Dichloroethene ND 1.0 1 p/m-Xylene ND 1.0 1 t-1,2-Dichloroethene ND 1.0 1 o-Xylene ND 1.0 1 1,2-Dichloropropane ND 1.0 1 Methyl-t-Butyl Ether (MTBE) ND 1.0 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits 1,4-Bromofluorobenzene 99 80-120 Dibromofluoromethane 109 80-126 1,2-Dichloroethane-d4 106 80-134 Toluene-d8 101 80-120

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/11/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 3010A Total / EPA 7470A Total Method: EPA 6010B / EPA 7470A Units: mg/L Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 1 of 2 Lab Sample Date /Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID SP-RW1-010912 12-01-0563-1-J 01/09/12 Aqueous ICP 5300 01/11/12 01/12/12 120111LA3 17:45 12:37

Comment(s): -Mercury analysis was performed on 01/11/12 17:45 with batch 120111L02. Parameter Result RL DF Qual Parameter Result RL DF Qual Antimony ND 0.0150 1 Molybdenum 0.0617 0.0100 1 Arsenic ND 0.0100 1 Nickel ND 0.0100 1 Barium 0.0772 0.0100 1 Selenium ND 0.0150 1 Beryllium ND 0.0100 1 Silver ND 0.00500 1 Cadmium ND 0.0100 1 Thallium ND 0.0150 1 Chromium ND 0.0100 1 Vanadium ND 0.0100 1 Cobalt ND 0.0100 1 Mercury ND 0.000500 1 Copper ND 0.0100 1 Zinc 0.126 0.0100 1 Lead ND 0.0100 1 SP-RW2-011012 12-01-0563-2-J 01/10/12 Aqueous ICP 5300 01/11/12 01/12/12 120111LA3 11:15 12:45

Comment(s): -Mercury analysis was performed on 01/11/12 17:47 with batch 120111L02. Parameter Result RL DF Qual Parameter Result RL DF Qual Antimony ND 0.0150 1 Molybdenum 0.0749 0.0100 1 Arsenic ND 0.0100 1 Nickel 0.0447 0.0100 1 Barium 0.210 0.0100 1 Selenium ND 0.0150 1 Beryllium ND 0.0100 1 Silver ND 0.00500 1

Cadmium ND 0.0100 1 Thallium ND 0.0150 1 Return to Contents Chromium 0.0722 0.0100 1 Vanadium 0.0445 0.0100 1 Cobalt ND 0.0100 1 Mercury ND 0.000500 1 Copper 0.0796 0.0100 1 Zinc 1.02 0.0100 1 Lead 0.0212 0.0100 1

Method Blank 099-04-008-5,777 N/A Aqueous Mercury 01/11/12 01/11/12 120111L02 13:34

Comment(s): -Preparation/analysis for Mercury was performed by EPA 7470A. Parameter Result RL DF Qual Mercury ND 0.000500 1

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/11/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 3010A Total / EPA 7470A Total Method: EPA 6010B / EPA 7470A Units: mg/L Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 2 of 2 Lab Sample Date /Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID Method Blank 097-01-003-12,281 N/A Aqueous ICP 5300 01/11/12 01/11/12 120111LA3 18:25

Parameter Result RL DF Qual Parameter Result RL DF Qual Antimony ND 0.0150 1 Lead ND 0.0100 1 Arsenic ND 0.0100 1 Molybdenum ND 0.0100 1 Barium ND 0.0100 1 Nickel ND 0.0100 1 Beryllium ND 0.0100 1 Selenium ND 0.0150 1 Cadmium ND 0.0100 1 Silver ND 0.00500 1 Chromium ND 0.0100 1 Thallium ND 0.0150 1 Cobalt ND 0.0100 1 Vanadium ND 0.0100 1 Copper ND 0.0100 1 Zinc ND 0.0100 1 Return to Contents

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/11/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537

Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 1 of 1

Lab Sample Number Date Client Sample Number Collected Matrix SP-RW1-010912 12-01-0563-1 01/09/12 Aqueous

Parameter Results RL DF Qual Units Date Date Method Prepared Analyzed Solids, Total Suspended 45 1.0 1 mg/L 01/12/12 01/12/12 SM 2540 D SP-RW2-011012 12-01-0563-2 01/10/12 Aqueous

Parameter Results RL DF Qual Units Date Date Method Prepared Analyzed Solids, Total Suspended 462 1.00 1 mg/L 01/12/12 01/12/12 SM 2540 D Method Blank N/A Aqueous

Parameter Results RL DF Qual Units Date Date Method Prepared Analyzed Solids, Total Suspended ND 1.0 1 mg/L 01/12/12 01/12/12 SM 2540 D Return to Contents

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Quality Control - Spike/Spike Duplicate

Arcadis US, Inc. Date Received: 01/11/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 3010A Total Method: EPA 6010B

Project Shell Ponds / Bay Point, CA / B0092353.0003

Date Date MS/MSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number SP-RW1-010912 Aqueous ICP 5300 01/11/12 01/12/12 120111SA3

Parameter SPIKE ADDED MS %REC MSD %REC %REC CL RPD RPD CL Qualifiers

Antimony 0.5000 122 121 72-132 1 0-10 Arsenic 0.5000 123 122 80-140 1 0-11 Barium 0.5000 113 111 87-123 1 0-6 Beryllium 0.5000 115 115 89-119 0 0-8 Cadmium 0.5000 110 108 82-124 1 0-7 Chromium 0.5000 113 112 86-122 1 0-8 Cobalt 0.5000 108 107 83-125 1 0-7 Copper 0.5000 124 122 78-126 2 0-7 Lead 0.5000 108 107 84-120 1 0-7 Molybdenum 0.5000 112 111 78-126 1 0-7 Nickel 0.5000 111 109 84-120 1 0-7 Selenium 0.5000 123 122 79-127 1 0-9 Silver 0.2500 116 114 86-128 1 0-7 Thallium 0.5000 98 97 79-121 1 0-8 Vanadium 0.5000 118 117 88-118 1 0-7 Return to Contents Zinc 0.5000 118 116 89-131 1 0-8

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - PDS / PDSD

Arcadis US, Inc. Date Received 01/11/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 3010A Total Method: EPA 6010B

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date Analyzed PDS / PDSD Batch Quality Control Sample ID Matrix Instrument Prepared Number

SP-RW1-010912 Aqueous ICP 5300 01/11/12 01/12/12 120111SA3

Parameter SPIKE ADDED PDS %REC PDSD %REC %REC CL RPD RPD CL Qualifiers

Antimony 0.5000 91 94 75-125 3 0-10 Arsenic 0.5000 108 109 75-125 1 0-11 Barium 0.5000 106 108 75-125 2 0-6 Beryllium 0.5000 106 109 75-125 3 0-8 Cadmium 0.5000 102 104 75-125 2 0-7 Chromium 0.5000 106 108 75-125 2 0-8 Cobalt 0.5000 100 102 75-125 2 0-7 Copper 0.5000 116 118 75-125 2 0-7 Lead 0.5000 100 102 75-125 2 0-7 Molybdenum 0.5000 104 106 75-125 2 0-7 Nickel 0.5000 103 104 75-125 1 0-7 Selenium 0.5000 116 117 75-125 1 0-9 Silver 0.2500 107 109 75-125 2 0-7 Thallium 0.5000 95 95 75-125 1 0-8 Vanadium 0.5000 110 112 75-125 2 0-7

Zinc 0.5000 111 113 75-125 2 0-8 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - Spike/Spike Duplicate

Arcadis US, Inc. Date Received: 01/11/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 7470A Total Method: EPA 7470A

Project Shell Ponds / Bay Point, CA / B0092353.0003

Date Date MS/MSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 12-01-0551-1 Aqueous Mercury 01/11/12 01/11/12 120111S02

Parameter SPIKE ADDED MS %REC MSD %REC %REC CL RPD RPD CL Qualifiers

Mercury 0.01000 109 109 57-141 0 0-10 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - Spike/Spike Duplicate

Arcadis US, Inc. Date Received: 01/11/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 5030C Method: EPA 8260B

Project Shell Ponds / Bay Point, CA / B0092353.0003

Date Date MS/MSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 12-01-0485-2 Aqueous GC/MS XX 01/11/12 01/11/12 120111S01

Parameter SPIKE ADDED MS %REC MSD %REC %REC CL RPD RPD CL Qualifiers

Benzene 2500 111 112 78-120 1 0-20 Carbon Tetrachloride 2500 109 114 67-139 4 0-20 Chlorobenzene 2500 100 100 80-120 0 0-20 1,2-Dibromoethane 2500 104 103 80-123 1 0-20 1,2-Dichlorobenzene 2500 97 98 76-120 1 0-20 1,2-Dichloroethane 2500 102 103 76-130 1 0-20 1,1-Dichloroethene 2500 108 107 70-130 2 0-27 Ethylbenzene 2500 104 104 73-127 0 0-20 Toluene 2500 109 111 72-126 1 0-20 Trichloroethene 2500 109 110 74-122 1 0-20 Vinyl Chloride 2500 107 104 65-131 2 0-24 Methyl-t-Butyl Ether (MTBE) 2500 115 114 69-123 1 0-20 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - Spike/Spike Duplicate

Arcadis US, Inc. Date Received: 01/11/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 5030C Method: EPA 8260B

Project Shell Ponds / Bay Point, CA / B0092353.0003

Date Date MS/MSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 12-01-0571-2 Aqueous GC/MS XX 01/12/12 01/12/12 120112S01

Parameter SPIKE ADDED MS %REC MSD %REC %REC CL RPD RPD CL Qualifiers

Benzene 50.00 108 111 78-120 3 0-20 Carbon Tetrachloride 50.00 108 119 67-139 9 0-20 Chlorobenzene 50.00 97 100 80-120 3 0-20 1,2-Dibromoethane 50.00 99 105 80-123 6 0-20 1,2-Dichlorobenzene 50.00 93 96 76-120 3 0-20 1,2-Dichloroethane 50.00 77 89 76-130 2 0-20 1,1-Dichloroethene 50.00 99 104 70-130 5 0-27 Ethylbenzene 50.00 101 104 73-127 3 0-20 Toluene 50.00 106 109 72-126 3 0-20 Trichloroethene 50.00 105 107 74-122 2 0-20 Vinyl Chloride 50.00 80 95 65-131 8 0-24 Methyl-t-Butyl Ether (MTBE) 50.00 110 116 69-123 5 0-20 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Matrix: Aqueous or Solid

Parameter Method QC Sample ID Date Analyzed Sample Conc DUP Conc RPD RPD CL Qualifiers

Solids, Total Suspended SM 2540 D SP-RW1-010912 01/12/12 45 47 4 0-10 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 3010A Total Method: EPA 6010B

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number

097-01-003-12,281 Aqueous ICP 5300 01/11/12 01/11/12 120111LA3

Parameter SPIKE ADDED LCS %REC LCSD %REC %REC CL ME_CL RPD RPD CL Qualifiers Antimony 0.5000 96 99 80-120 73-127 3 0-20 Arsenic 0.5000 96 100 80-120 73-127 3 0-20 Barium 0.5000 106 107 80-120 73-127 1 0-20 Beryllium 0.5000 98 99 80-120 73-127 0 0-20 Cadmium 0.5000 100 100 80-120 73-127 1 0-20 Chromium 0.5000 101 101 80-120 73-127 0 0-20 Cobalt 0.5000 104 106 80-120 73-127 2 0-20 Copper 0.5000 97 97 80-120 73-127 0 0-20 Lead 0.5000 102 105 80-120 73-127 3 0-20 Molybdenum 0.5000 96 99 80-120 73-127 3 0-20 Nickel 0.5000 104 104 80-120 73-127 0 0-20 Selenium 0.5000 94 97 80-120 73-127 3 0-20 Silver 0.2500 95 95 80-120 73-127 0 0-20 Thallium 0.5000 102 106 80-120 73-127 3 0-20 Vanadium 0.5000 99 98 80-120 73-127 0 0-20 Zinc 0.5000 104 104 80-120 73-127 0 0-20 Return to Contents Total number of LCS compounds : 16 Total number of ME compounds : 0 Total number of ME compounds allowed : 1 LCS ME CL validation result : Pass

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8015B (M)

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 099-14-065-134 Aqueous GC 48 01/12/12 01/13/12 120112B09A

Parameter SPIKE ADDED LCS %REC LCSD %REC %REC CL RPD RPD CL Qualifiers

TPH as Diesel 2000 85 82 75-117 3 0-13 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 7470A Total Method: EPA 7470A

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 099-04-008-5,777 Aqueous Mercury 01/11/12 01/11/12 120111L02

Parameter SPIKE ADDED LCS %REC LCSD %REC %REC CL RPD RPD CL Qualifiers

Mercury 0.01000 102 100 85-121 1 0-10 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8270C SIM PAHs

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number

099-06-008-424 Aqueous GC/MS AAA 01/12/12 01/17/12 120112L08

Parameter SPIKE ADDED LCS %REC LCSD %REC %REC CL ME_CL RPD RPD CL Qualifiers Naphthalene 2.000 79 79 21-133 2-152 0 0-25 2-Methylnaphthalene 2.000 74 72 21-140 1-160 2 0-25 1-Methylnaphthalene 2.000 83 83 20-140 0-160 0 0-25 Acenaphthylene 2.000 88 87 33-145 14-164 1 0-25 Acenaphthene 2.000 89 88 55-121 44-132 1 0-25 Fluorene 2.000 97 94 59-121 49-131 3 0-25 Phenanthrene 2.000 86 86 54-120 43-131 0 0-25 Anthracene 2.000 47 46 27-133 9-151 2 0-25 Fluoranthene 2.000 93 92 26-137 8-156 2 0-25 Pyrene 2.000 98 100 45-129 31-143 1 0-25 Benzo (a) Anthracene 2.000 91 90 33-143 15-161 1 0-25 Chrysene 2.000 97 96 17-168 0-193 1 0-25 Benzo (k) Fluoranthene 2.000 117 112 24-159 2-182 5 0-25 Benzo (b) Fluoranthene 2.000 110 110 24-159 2-182 1 0-25 Benzo (a) Pyrene 2.000 79 77 17-163 0-187 2 0-25 Indeno (1,2,3-c,d) Pyrene 2.000 121 117 25-175 0-200 4 0-25

Dibenz (a,h) Anthracene 2.000 119 114 25-175 0-200 4 0-25 Return to Contents Benzo (g,h,i) Perylene 2.000 113 110 25-157 3-179 3 0-25

Total number of LCS compounds : 18 Total number of ME compounds : 0 Total number of ME compounds allowed : 1 LCS ME CL validation result : Pass

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 5030C Method: EPA 8260B

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number

099-14-001-6,761 Aqueous GC/MS XX 01/11/12 01/11/12 120111L01

Parameter SPIKE ADDED LCS %REC LCSD %REC %REC CL ME_CL RPD RPD CL Qualifiers Benzene 50.00 109 107 80-120 73-127 3 0-20 Carbon Tetrachloride 50.00 113 110 66-138 54-150 2 0-20 Chlorobenzene 50.00 99 96 80-120 73-127 2 0-20 1,2-Dibromoethane 50.00 103 102 80-120 73-127 1 0-20 1,2-Dichlorobenzene 50.00 96 94 80-120 73-127 2 0-20 1,2-Dichloroethane 50.00 104 102 80-129 72-137 2 0-20 1,1-Dichloroethene 50.00 105 103 71-131 61-141 2 0-20 Ethylbenzene 50.00 103 100 80-123 73-130 3 0-20 Toluene 50.00 108 106 79-121 72-128 2 0-20 Trichloroethene 50.00 106 103 80-120 73-127 3 0-20 Vinyl Chloride 50.00 105 99 70-136 59-147 5 0-20 Methyl-t-Butyl Ether (MTBE) 50.00 113 114 72-126 63-135 1 0-22

Total number of LCS compounds : 12 Total number of ME compounds : 0 Total number of ME compounds allowed : 1 LCS ME CL validation result : Pass Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 5030C Method: EPA 8260B

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number

099-14-001-6,775 Aqueous GC/MS XX 01/12/12 01/12/12 120112L01

Parameter SPIKE ADDED LCS %REC LCSD %REC %REC CL ME_CL RPD RPD CL Qualifiers Benzene 50.00 106 106 80-120 73-127 0 0-20 Carbon Tetrachloride 50.00 113 114 66-138 54-150 1 0-20 Chlorobenzene 50.00 97 96 80-120 73-127 1 0-20 1,2-Dibromoethane 50.00 99 100 80-120 73-127 1 0-20 1,2-Dichlorobenzene 50.00 91 93 80-120 73-127 1 0-20 1,2-Dichloroethane 50.00 99 102 80-129 72-137 3 0-20 1,1-Dichloroethene 50.00 103 104 71-131 61-141 1 0-20 Ethylbenzene 50.00 101 100 80-123 73-130 0 0-20 Toluene 50.00 106 106 79-121 72-128 0 0-20 Trichloroethene 50.00 102 104 80-120 73-127 2 0-20 Vinyl Chloride 50.00 102 102 70-136 59-147 0 0-20 Methyl-t-Butyl Ether (MTBE) 50.00 104 109 72-126 63-135 5 0-22

Total number of LCS compounds : 12 Total number of ME compounds : 0 Total number of ME compounds allowed : 1 LCS ME CL validation result : Pass Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Glossary of Terms and Qualifiers

Work Order Number: 12-01-0563

Qualifier Definition * See applicable analysis comment. < Less than the indicated value. > Greater than the indicated value. 1 Surrogate compound recovery was out of control due to a required sample dilution. Therefore, the sample data was reported without further clarification. 2 Surrogate compound recovery was out of control due to matrix interference. The associated method blank surrogate spike compound was in control and, therefore, the sample data was reported without further clarification. 3 Recovery of the Matrix Spike (MS) or Matrix Spike Duplicate (MSD) compound was out of control due to matrix interference. The associated LCS and/or LCSD was in control and, therefore, the sample data was reported without further clarification. 4 The MS/MSD RPD was out of control due to matrix interference. The LCS/LCSD RPD was in control and, therefore, the sample data was reported without further clarification. 5 The PDS/PDSD or PES/PESD associated with this batch of samples was out of control due to a matrix interference effect. The associated batch LCS/LCSD was in control and, hence, the associated sample data was reported without further clarification. 6 Surrogate recovery below the acceptance limit. 7 Surrogate recovery above the acceptance limit. B Analyte was present in the associated method blank. BU Sample analyzed after holding time expired. E Concentration exceeds the calibration range. ET Sample was extracted past end of recommended max. holding time. HD The chromatographic pattern was inconsistent with the profile of the reference fuel standard. HDH The sample chromatographic pattern for TPH matches the chromatographic pattern of the specified standard but heavier hydrocarbons were also present (or detected). HDL The sample chromatographic pattern for TPH matches the chromatographic pattern of Return to Contents the specified standard but lighter hydrocarbons were also present (or detected). J Analyte was detected at a concentration below the reporting limit and above the laboratory method detection limit. Reported value is estimated. ME LCS/LCSD Recovery Percentage is within Marginal Exceedance (ME) Control Limit range. ND Parameter not detected at the indicated reporting limit. Q Spike recovery and RPD control limits do not apply resulting from the parameter concentration in the sample exceeding the spike concentration by a factor of four or greater. SG The sample extract was subjected to Silica Gel treatment prior to analysis. X % Recovery and/or RPD out-of-range. Z Analyte presence was not confirmed by second column or GC/MS analysis.

Solid - Unless otherwise indicated, solid sample data is reported on a wet weight basis, not corrected for % moisture. All QC results are reported on a wet weight basis. MPN - Most Probable Number

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Return to Contents Page 30of

Return to Contents Page 1 of 23

WORK ORDER NUMBER: 12-01-0853

Analytical Report For Client: Arcadis US, Inc. Client Project Name: Shell Ponds / Bay Point, CA / B0092353.0003 Attention: Josh Gravenmier 2999 Oak Road, Suite 300 Walnut Creek, CA 94597-2537

01/24/2012 Ranjit Clarke Project Manager Page 2 of 23

Contents Client Project Name: Shell Ponds / Bay Point, CA / B0092353.0003 Work Order Number: 12-01-0853

1 Client Sample Data ...... 3 1.1 EPA 8015B (M) C6-C44 (Aqueous) ...... 3 1.2 EPA 8270C SIM PAHs (Aqueous) ...... 4 1.3 EPA 8260B Volatile Organics (Aqueous) ...... 5 1.4 EPA 6010B/7470A CAC Title 22 Metals / EPA 7470A Mercury 8 1.5 Combined Inorganic Tests ...... 9

2 Quality Control Sample Data ...... 10 2.1 MS/MSD and/or Duplicate ...... 10 2.2 LCS/LCSD ...... 15

3 Glossary of Terms and Qualifiers ...... 20

4 Chain of Custody/Sample Receipt Form ...... 21 Page 3 of 23

Analytical Report

Arcadis US, Inc. Date Received: 01/14/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0853 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8015B (M) Units: ug/L Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 1 of 1 Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID SP-RW-011312 12-01-0853-1-H 01/13/12 Aqueous GC 47 01/17/12 01/18/12 120117B09A 11:00 07:44

Comment(s): -Results were evaluated to the MDL (DL), concentrations >= to the MDL (DL) but < RL (LOQ), if found, are qualified with a "J" flag. -The total concentration includes individual carbon range concentrations (estimated), if any, below the RL reported as ND. Parameter Result RL MDL DF Qual Parameter Result RL MDL DF Qual C6 ND 50 1.4 1 C21-C22 310 50 18 1 C7 8.4 50 6.1 1 J C23-C24 150 50 18 1 C8 27 50 9.9 1 J C25-C28 47 50 16 1 J C9-C10 260 50 13 1 C29-C32 89 50 8.5 1 C11-C12 520 50 14 1 C33-C36 51 50 7.9 1 C13-C14 660 50 16 1 C37-C40 33 50 6.8 1 J C15-C16 750 50 17 1 C41-C44 ND 50 6.6 1 C17-C18 670 50 17 1 C6-C44 Total 4100 50 47 1 C19-C20 500 50 18 1 Surrogates: REC (%) Control Qual Limits Decachlorobiphenyl 104 68-140

Method Blank 099-14-065-136 N/A Aqueous GC 47 01/17/12 01/18/12 120117B09A 02:39

Comment(s): -Results were evaluated to the MDL, concentrations >= to the MDL but < RL, if found, are qualified with a "J" flag. Parameter Result RL MDL DF Qual Parameter Result RL MDL DF Qual 1 1

C6 ND 50 1.4 C21-C22 ND 50 18 Return to Contents C7 ND 50 6.1 1 C23-C24 ND 50 18 1 C8 ND 50 9.9 1 C25-C28 ND 50 16 1 C9-C10 ND 50 13 1 C29-C32 ND 50 8.5 1 C11-C12 ND 50 14 1 C33-C36 ND 50 7.9 1 C13-C14 ND 50 16 1 C37-C40 ND 50 6.8 1 C15-C16 ND 50 17 1 C41-C44 ND 50 6.6 1 C17-C18 ND 50 17 1 C6-C44 Total ND 50 47 1 C19-C20 ND 50 18 1 Surrogates: REC (%) Control Qual Limits Decachlorobiphenyl 96 68-140

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/14/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0853 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8270C SIM PAHs Units: ug/L Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 1 of 1 Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID SP-RW-011312 12-01-0853-1-J 01/13/12 Aqueous GC/MS AAA 01/16/12 01/19/12 120116L02 11:00 20:46

Comment(s): -Results were evaluated to the MDL (DL), concentrations >= to the MDL (DL) but < RL (LOQ), if found, are qualified with a "J" flag. Parameter Result RL MDL DF Qual Parameter Result RL MDL DF Qual Naphthalene ND 0.20 0.023 1 Pyrene 3.0 0.20 0.025 1 2-Methylnaphthalene 0.17 0.20 0.026 1 J Benzo (a) Anthracene ND 0.20 0.024 1 1-Methylnaphthalene 5.8 0.20 0.028 1 Chrysene ND 0.20 0.019 1 Acenaphthylene ND 0.20 0.018 1 Benzo (k) Fluoranthene ND 0.20 0.023 1 Acenaphthene 0.41 0.20 0.021 1 Benzo (b) Fluoranthene 0.050 0.20 0.025 1 J Fluorene 0.19 0.20 0.024 1 J Benzo (a) Pyrene 0.15 0.20 0.036 1 J Phenanthrene 0.54 0.20 0.031 1 Indeno (1,2,3-c,d) Pyrene 0.19 0.20 0.022 1 J Anthracene 0.034 0.20 0.034 1 J Dibenz (a,h) Anthracene ND 0.20 0.027 1 Fluoranthene 0.80 0.20 0.027 1 Benzo (g,h,i) Perylene 1.8 0.20 0.022 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits Nitrobenzene-d5 105 28-139 2-Fluorobiphenyl 94 33-144 p-Terphenyl-d14 85 23-160

Method Blank 099-06-008-425 N/A Aqueous GC/MS AAA 01/16/12 01/19/12 120116L02 18:08

Comment(s): -Results were evaluated to the MDL, concentrations >= to the MDL but < RL, if found, are qualified with a "J" flag. Parameter Result RL MDL DF Qual Parameter Result RL MDL DF Qual Naphthalene ND 0.20 0.023 1 Pyrene ND 0.20 0.025 1 Return to Contents 2-Methylnaphthalene ND 0.20 0.026 1 Benzo (a) Anthracene ND 0.20 0.024 1 1-Methylnaphthalene ND 0.20 0.028 1 Chrysene ND 0.20 0.019 1 Acenaphthylene ND 0.20 0.018 1 Benzo (k) Fluoranthene ND 0.20 0.023 1 Acenaphthene ND 0.20 0.021 1 Benzo (b) Fluoranthene ND 0.20 0.025 1 Fluorene ND 0.20 0.024 1 Benzo (a) Pyrene ND 0.20 0.036 1 Phenanthrene ND 0.20 0.031 1 Indeno (1,2,3-c,d) Pyrene ND 0.20 0.022 1 Anthracene ND 0.20 0.034 1 Dibenz (a,h) Anthracene ND 0.20 0.027 1 Fluoranthene ND 0.20 0.027 1 Benzo (g,h,i) Perylene ND 0.20 0.022 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits Nitrobenzene-d5 106 28-139 2-Fluorobiphenyl 88 33-144 p-Terphenyl-d14 92 23-160

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/14/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0853 Walnut Creek, CA 94597-2537 Preparation: EPA 5030C Method: EPA 8260B Units: ug/L Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 1 of 3 Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID SP-RW-011312 12-01-0853-1-A 01/13/12 Aqueous GC/MS CC 01/14/12 01/15/12 120114L02 11:00 02:58

Comment(s): -Results were evaluated to the MDL (DL), concentrations >= to the MDL (DL) but < RL (LOQ), if found, are qualified with a "J" flag. Parameter Result RL MDL DF Qual Parameter Result RL MDL DF Qual Acetone 20 20 10 1 1,3-Dichloropropane ND 1.0 0.30 1 Benzene 0.20 0.50 0.14 1 J 2,2-Dichloropropane ND 1.0 0.36 1 Bromobenzene ND 1.0 0.30 1 1,1-Dichloropropene ND 1.0 0.46 1 Bromochloromethane ND 1.0 0.48 1 c-1,3-Dichloropropene ND 0.50 0.25 1 Bromodichloromethane ND 1.0 0.21 1 t-1,3-Dichloropropene ND 0.50 0.25 1 Bromoform ND 1.0 0.50 1 Ethylbenzene 0.49 1.0 0.14 1 J Bromomethane ND 10 3.9 1 2-Hexanone ND 10 2.1 1 2-Butanone 5.3 10 2.2 1 J Isopropylbenzene ND 1.0 0.58 1 n-Butylbenzene 0.72 1.0 0.23 1 J p-Isopropyltoluene 0.42 1.0 0.16 1 J sec-Butylbenzene 0.31 1.0 0.25 1 J Methylene Chloride ND 10 0.64 1 tert-Butylbenzene ND 1.0 0.28 1 4-Methyl-2-Pentanone ND 10 4.4 1 Carbon Disulfide ND 10 0.41 1 Naphthalene ND 10 2.5 1 Carbon Tetrachloride ND 0.50 0.23 1 n-Propylbenzene 0.79 1.0 0.17 1 J Chlorobenzene ND 1.0 0.17 1 Styrene ND 1.0 0.17 1 Chloroethane ND 5.0 2.3 1 1,1,1,2-Tetrachloroethane ND 1.0 0.40 1 Chloroform ND 1.0 0.46 1 1,1,2,2-Tetrachloroethane ND 1.0 0.41 1 Chloromethane ND 10 1.8 1 Tetrachloroethene ND 1.0 0.39 1 2-Chlorotoluene ND 1.0 0.24 1 Toluene 0.25 1.0 0.24 1 J 4-Chlorotoluene ND 1.0 0.13 1 1,2,3-Trichlorobenzene ND 1.0 0.51 1 Dibromochloromethane ND 1.0 0.25 1 1,2,4-Trichlorobenzene ND 1.0 0.50 1 Return to Contents 1,2-Dibromo-3-Chloropropane ND 5.0 1.2 1 1,1,1-Trichloroethane ND 1.0 0.30 1 1,2-Dibromoethane ND 1.0 0.36 1 1,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 0.78 1 Dibromomethane ND 1.0 0.46 1 1,1,2-Trichloroethane ND 1.0 0.38 1 1,2-Dichlorobenzene ND 1.0 0.46 1 Trichloroethene ND 1.0 0.37 1 1,3-Dichlorobenzene ND 1.0 0.40 1 Trichlorofluoromethane ND 10 1.7 1 1,4-Dichlorobenzene ND 1.0 0.43 1 1,2,3-Trichloropropane ND 5.0 0.64 1 Dichlorodifluoromethane ND 1.0 0.46 1 1,2,4-Trimethylbenzene 1.9 1.0 0.36 1 1,1-Dichloroethane ND 1.0 0.28 1 1,3,5-Trimethylbenzene 0.29 1.0 0.28 1 J 1,2-Dichloroethane ND 0.50 0.24 1 Vinyl Acetate ND 10 2.8 1 1,1-Dichloroethene ND 1.0 0.43 1 Vinyl Chloride ND 0.50 0.30 1 c-1,2-Dichloroethene ND 1.0 0.48 1 p/m-Xylene 0.32 1.0 0.24 1 J t-1,2-Dichloroethene ND 1.0 0.37 1 o-Xylene 0.29 1.0 0.23 1 J 1,2-Dichloropropane ND 1.0 0.42 1 Methyl-t-Butyl Ether (MTBE) ND 1.0 0.31 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits 1,4-Bromofluorobenzene 104 80-120 Dibromofluoromethane 99 80-126 1,2-Dichloroethane-d4 104 80-134 Toluene-d8 102 80-120

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/14/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0853 Walnut Creek, CA 94597-2537 Preparation: EPA 5030C Method: EPA 8260B Units: ug/L Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 2 of 3 Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID SP-TB5-011312 12-01-0853-2-A 01/13/12 Aqueous GC/MS CC 01/14/12 01/14/12 120114L02 11:00 23:01

Comment(s): -Results were evaluated to the MDL (DL), concentrations >= to the MDL (DL) but < RL (LOQ), if found, are qualified with a "J" flag. Parameter Result RL MDL DF Qual Parameter Result RL MDL DF Qual Acetone ND 20 10 1 1,3-Dichloropropane ND 1.0 0.30 1 Benzene ND 0.50 0.14 1 2,2-Dichloropropane ND 1.0 0.36 1 Bromobenzene ND 1.0 0.30 1 1,1-Dichloropropene ND 1.0 0.46 1 Bromochloromethane ND 1.0 0.48 1 c-1,3-Dichloropropene ND 0.50 0.25 1 Bromodichloromethane ND 1.0 0.21 1 t-1,3-Dichloropropene ND 0.50 0.25 1 Bromoform ND 1.0 0.50 1 Ethylbenzene ND 1.0 0.14 1 Bromomethane ND 10 3.9 1 2-Hexanone ND 10 2.1 1 2-Butanone ND 10 2.2 1 Isopropylbenzene ND 1.0 0.58 1 n-Butylbenzene ND 1.0 0.23 1 p-Isopropyltoluene ND 1.0 0.16 1 sec-Butylbenzene ND 1.0 0.25 1 Methylene Chloride ND 10 0.64 1 tert-Butylbenzene ND 1.0 0.28 1 4-Methyl-2-Pentanone ND 10 4.4 1 Carbon Disulfide ND 10 0.41 1 Naphthalene ND 10 2.5 1 Carbon Tetrachloride ND 0.50 0.23 1 n-Propylbenzene ND 1.0 0.17 1 Chlorobenzene ND 1.0 0.17 1 Styrene ND 1.0 0.17 1 Chloroethane ND 5.0 2.3 1 1,1,1,2-Tetrachloroethane ND 1.0 0.40 1 Chloroform ND 1.0 0.46 1 1,1,2,2-Tetrachloroethane ND 1.0 0.41 1 Chloromethane ND 10 1.8 1 Tetrachloroethene ND 1.0 0.39 1 2-Chlorotoluene ND 1.0 0.24 1 Toluene ND 1.0 0.24 1 4-Chlorotoluene ND 1.0 0.13 1 1,2,3-Trichlorobenzene ND 1.0 0.51 1 Dibromochloromethane ND 1.0 0.25 1 1,2,4-Trichlorobenzene ND 1.0 0.50 1 Return to Contents 1,2-Dibromo-3-Chloropropane ND 5.0 1.2 1 1,1,1-Trichloroethane ND 1.0 0.30 1 1,2-Dibromoethane ND 1.0 0.36 1 1,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 0.78 1 Dibromomethane ND 1.0 0.46 1 1,1,2-Trichloroethane ND 1.0 0.38 1 1,2-Dichlorobenzene ND 1.0 0.46 1 Trichloroethene ND 1.0 0.37 1 1,3-Dichlorobenzene ND 1.0 0.40 1 Trichlorofluoromethane ND 10 1.7 1 1,4-Dichlorobenzene ND 1.0 0.43 1 1,2,3-Trichloropropane ND 5.0 0.64 1 Dichlorodifluoromethane ND 1.0 0.46 1 1,2,4-Trimethylbenzene ND 1.0 0.36 1 1,1-Dichloroethane ND 1.0 0.28 1 1,3,5-Trimethylbenzene ND 1.0 0.28 1 1,2-Dichloroethane ND 0.50 0.24 1 Vinyl Acetate ND 10 2.8 1 1,1-Dichloroethene ND 1.0 0.43 1 Vinyl Chloride ND 0.50 0.30 1 c-1,2-Dichloroethene ND 1.0 0.48 1 p/m-Xylene ND 1.0 0.24 1 t-1,2-Dichloroethene ND 1.0 0.37 1 o-Xylene ND 1.0 0.23 1 1,2-Dichloropropane ND 1.0 0.42 1 Methyl-t-Butyl Ether (MTBE) ND 1.0 0.31 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits 1,4-Bromofluorobenzene 100 80-120 Dibromofluoromethane 97 80-126 1,2-Dichloroethane-d4 100 80-134 Toluene-d8 99 80-120

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/14/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0853 Walnut Creek, CA 94597-2537 Preparation: EPA 5030C Method: EPA 8260B Units: ug/L Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 3 of 3 Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID Method Blank 099-14-001-6,824 N/A Aqueous GC/MS CC 01/14/12 01/14/12 120114L02 22:35

Comment(s): -Results were evaluated to the MDL, concentrations >= to the MDL but < RL, if found, are qualified with a "J" flag. Parameter Result RL MDL DF Qual Parameter Result RL MDL DF Qual Acetone ND 20 10 1 1,3-Dichloropropane ND 1.0 0.30 1 Benzene ND 0.50 0.14 1 2,2-Dichloropropane ND 1.0 0.36 1 Bromobenzene ND 1.0 0.30 1 1,1-Dichloropropene ND 1.0 0.46 1 Bromochloromethane ND 1.0 0.48 1 c-1,3-Dichloropropene ND 0.50 0.25 1 Bromodichloromethane ND 1.0 0.21 1 t-1,3-Dichloropropene ND 0.50 0.25 1 Bromoform ND 1.0 0.50 1 Ethylbenzene ND 1.0 0.14 1 Bromomethane ND 10 3.9 1 2-Hexanone ND 10 2.1 1 2-Butanone ND 10 2.2 1 Isopropylbenzene ND 1.0 0.58 1 n-Butylbenzene ND 1.0 0.23 1 p-Isopropyltoluene ND 1.0 0.16 1 sec-Butylbenzene ND 1.0 0.25 1 Methylene Chloride ND 10 0.64 1 tert-Butylbenzene ND 1.0 0.28 1 4-Methyl-2-Pentanone ND 10 4.4 1 Carbon Disulfide ND 10 0.41 1 Naphthalene ND 10 2.5 1 Carbon Tetrachloride ND 0.50 0.23 1 n-Propylbenzene ND 1.0 0.17 1 Chlorobenzene ND 1.0 0.17 1 Styrene ND 1.0 0.17 1 Chloroethane ND 5.0 2.3 1 1,1,1,2-Tetrachloroethane ND 1.0 0.40 1 Chloroform ND 1.0 0.46 1 1,1,2,2-Tetrachloroethane ND 1.0 0.41 1 Chloromethane ND 10 1.8 1 Tetrachloroethene ND 1.0 0.39 1 2-Chlorotoluene ND 1.0 0.24 1 Toluene ND 1.0 0.24 1 4-Chlorotoluene ND 1.0 0.13 1 1,2,3-Trichlorobenzene ND 1.0 0.51 1 Dibromochloromethane ND 1.0 0.25 1 1,2,4-Trichlorobenzene ND 1.0 0.50 1 Return to Contents 1,2-Dibromo-3-Chloropropane ND 5.0 1.2 1 1,1,1-Trichloroethane ND 1.0 0.30 1 1,2-Dibromoethane ND 1.0 0.36 1 1,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 0.78 1 Dibromomethane ND 1.0 0.46 1 1,1,2-Trichloroethane ND 1.0 0.38 1 1,2-Dichlorobenzene ND 1.0 0.46 1 Trichloroethene ND 1.0 0.37 1 1,3-Dichlorobenzene ND 1.0 0.40 1 Trichlorofluoromethane ND 10 1.7 1 1,4-Dichlorobenzene ND 1.0 0.43 1 1,2,3-Trichloropropane ND 5.0 0.64 1 Dichlorodifluoromethane ND 1.0 0.46 1 1,2,4-Trimethylbenzene ND 1.0 0.36 1 1,1-Dichloroethane ND 1.0 0.28 1 1,3,5-Trimethylbenzene ND 1.0 0.28 1 1,2-Dichloroethane ND 0.50 0.24 1 Vinyl Acetate ND 10 2.8 1 1,1-Dichloroethene ND 1.0 0.43 1 Vinyl Chloride ND 0.50 0.30 1 c-1,2-Dichloroethene ND 1.0 0.48 1 p/m-Xylene ND 1.0 0.24 1 t-1,2-Dichloroethene ND 1.0 0.37 1 o-Xylene ND 1.0 0.23 1 1,2-Dichloropropane ND 1.0 0.42 1 Methyl-t-Butyl Ether (MTBE) ND 1.0 0.31 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits 1,4-Bromofluorobenzene 99 80-120 Dibromofluoromethane 98 80-126 1,2-Dichloroethane-d4 102 80-134 Toluene-d8 99 80-120

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/14/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0853 Walnut Creek, CA 94597-2537 Preparation: EPA 3010A Total / EPA 7470A Total Method: EPA 6010B / EPA 7470A Units: mg/L Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 1 of 1 Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID SP-RW-011312 12-01-0853-1-D 01/13/12 Aqueous ICP 5300 01/16/12 01/16/12 120116LA2 11:00 18:14

Comment(s): -Results were evaluated to the MDL (DL), concentrations >= to the MDL (DL) but < RL (LOQ), if found, are qualified with a "J" flag. -Mercury analysis was performed on 01/17/12 12:20 with batch 120116L06. Parameter Result RL MDL DF Qual Parameter Result RL MDL DF Qual Antimony 0.00801 0.0150 0.00787 1 J Molybdenum 0.0676 0.0100 0.00278 1 Arsenic ND 0.0100 0.00438 1 Nickel 0.00690 0.0100 0.00298 1 J Barium 0.155 0.0100 0.00296 1 Selenium 0.00789 0.0150 0.00699 1 J Beryllium 0.00731 0.0100 0.00262 1 J Silver ND 0.00500 0.00139 1 Cadmium ND 0.0100 0.00269 1 Thallium 0.0142 0.0150 0.00291 1 B,J Chromium 0.00700 0.0100 0.00271 1 J Vanadium 0.00418 0.0100 0.00244 1 J Cobalt ND 0.0100 0.00295 1 Mercury 0.0000596 0.000500 0.0000453 1 J Copper 0.00779 0.0100 0.00267 1 J Zinc 0.0573 0.0100 0.00352 1 Lead ND 0.0100 0.00406 1

Method Blank 099-04-008-5,787 N/A Aqueous Mercury 01/16/12 01/16/12 120116L06 17:52

Comment(s): -Results were evaluated to the MDL, concentrations >= to the MDL but < RL, if found, are qualified with a "J" flag. -Preparation/analysis for Mercury was performed by EPA 7470A. Parameter Result RL MDL DF Qual Mercury ND 0.000500 0.0000453 1

Method Blank 097-01-003-12,290 N/A Aqueous ICP 5300 01/16/12 01/16/12 120116LA2 18:04 Return to Contents

Comment(s): -Results were evaluated to the MDL, concentrations >= to the MDL but < RL, if found, are qualified with a "J" flag. Parameter Result RL MDL DF Qual Parameter Result RL MDL DF Qual Antimony ND 0.0150 0.00787 1 Lead ND 0.0100 0.00406 1 Arsenic ND 0.0100 0.00438 1 Molybdenum ND 0.0100 0.00278 1 Barium ND 0.0100 0.00296 1 Nickel ND 0.0100 0.00298 1 Beryllium ND 0.0100 0.00262 1 Selenium ND 0.0150 0.00699 1 Cadmium ND 0.0100 0.00269 1 Silver ND 0.00500 0.00139 1 Chromium ND 0.0100 0.00271 1 Thallium 0.00384 0.0150 0.00291 1 J Cobalt ND 0.0100 0.00295 1 Vanadium ND 0.0100 0.00244 1 Copper ND 0.0100 0.00267 1 Zinc ND 0.0100 0.00352 1

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/14/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0853 Walnut Creek, CA 94597-2537

Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 1 of 1

Lab Sample Number Date Client Sample Number Collected Matrix SP-RW-011312 12-01-0853-1 01/13/12 Aqueous

Comment(s): (24) -Results were evaluated to the MDL (DL), concentrations >= to the MDL (DL) but < RL (LOQ), if found, are qualified with a "J" flag Parameter Result RL MDL DF Qual Units Date Date Method Prepared Analyzed Solids, Total Suspended (24) 73 1.0 0.95 1 mg/L 01/16/12 01/16/12 SM 2540 D

Method Blank N/A Aqueous

Comment(s): (24) -Results were evaluated to the MDL, concentrations >= to the MDL but < RL, if found, are qualified with a "J" flag Parameter Result RL MDL DF Qual Units Date Date Method Prepared Analyzed Solids, Total Suspended (24) ND 1.0 0.95 1 mg/L 01/16/12 01/16/12 SM 2540 D Return to Contents

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Quality Control - Spike/Spike Duplicate

Arcadis US, Inc. Date Received: 01/14/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0853 Walnut Creek, CA 94597-2537 Preparation: EPA 3010A Total Method: EPA 6010B

Project Shell Ponds / Bay Point, CA / B0092353.0003

Date Date MS/MSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number SP-RW-011312 Aqueous ICP 5300 01/16/12 01/16/12 120116SA2

Parameter SPIKE ADDED MS %REC MSD %REC %REC CL RPD RPD CL Qualifiers

Antimony 0.5000 116 115 72-132 1 0-10 Arsenic 0.5000 121 121 80-140 0 0-11 Barium 0.5000 110 109 87-123 1 0-6 Beryllium 0.5000 112 111 89-119 1 0-8 Cadmium 0.5000 107 106 82-124 1 0-7 Chromium 0.5000 108 107 86-122 1 0-8 Cobalt 0.5000 107 106 83-125 1 0-7 Copper 0.5000 121 119 78-126 1 0-7 Lead 0.5000 109 108 84-120 1 0-7 Molybdenum 0.5000 108 107 78-126 1 0-7 Nickel 0.5000 106 105 84-120 1 0-7 Selenium 0.5000 118 117 79-127 1 0-9 Silver 0.2500 118 115 86-128 2 0-7 Thallium 0.5000 97 97 79-121 0 0-8 Vanadium 0.5000 114 112 88-118 1 0-7 Return to Contents Zinc 0.5000 111 109 89-131 2 0-8

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - PDS / PDSD

Arcadis US, Inc. Date Received 01/14/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0853 Walnut Creek, CA 94597-2537 Preparation: EPA 3010A Total Method: EPA 6010B

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date Analyzed PDS / PDSD Batch Quality Control Sample ID Matrix Instrument Prepared Number

SP-RW-011312 Aqueous ICP 5300 01/16/12 01/18/12 120116SA2

Parameter SPIKE ADDED PDS %REC PDSD %REC %REC CL RPD RPD CL Qualifiers

Antimony 0.5000 103 105 75-125 2 0-10 Arsenic 0.5000 113 114 75-125 1 0-11 Barium 0.5000 102 103 75-125 1 0-6 Beryllium 0.5000 106 105 75-125 1 0-8 Cadmium 0.5000 99 100 75-125 1 0-7 Chromium 0.5000 104 105 75-125 1 0-8 Cobalt 0.5000 99 100 75-125 1 0-7 Copper 0.5000 114 115 75-125 1 0-7 Lead 0.5000 97 98 75-125 1 0-7 Molybdenum 0.5000 99 100 75-125 1 0-7 Nickel 0.5000 102 102 75-125 1 0-7 Selenium 0.5000 112 114 75-125 2 0-9 Silver 0.2500 108 110 75-125 1 0-7 Thallium 0.5000 92 92 75-125 1 0-8 Vanadium 0.5000 106 107 75-125 1 0-7

Zinc 0.5000 101 102 75-125 1 0-8 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - Spike/Spike Duplicate

Arcadis US, Inc. Date Received: 01/14/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0853 Walnut Creek, CA 94597-2537 Preparation: EPA 7470A Filt. Method: EPA 7470A

Project Shell Ponds / Bay Point, CA / B0092353.0003

Date Date MS/MSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 12-01-0881-1 Aqueous Mercury 01/16/12 01/16/12 120116S06

Parameter SPIKE ADDED MS %REC MSD %REC %REC CL RPD RPD CL Qualifiers

Mercury 0.01000 95 99 57-141 4 0-10 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - Spike/Spike Duplicate

Arcadis US, Inc. Date Received: 01/14/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0853 Walnut Creek, CA 94597-2537 Preparation: EPA 5030C Method: EPA 8260B

Project Shell Ponds / Bay Point, CA / B0092353.0003

Date Date MS/MSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 12-01-0800-9 Aqueous GC/MS CC 01/14/12 01/14/12 120114S02

Parameter SPIKE ADDED MS %REC MSD %REC %REC CL RPD RPD CL Qualifiers

Benzene 50.00 100 102 78-120 1 0-20 Carbon Tetrachloride 50.00 87 91 67-139 4 0-20 Chlorobenzene 50.00 92 91 80-120 1 0-20 1,2-Dibromoethane 50.00 101 101 80-123 0 0-20 1,2-Dichlorobenzene 50.00 85 86 76-120 2 0-20 1,2-Dichloroethane 50.00 100 101 76-130 1 0-20 1,1-Dichloroethene 50.00 97 98 70-130 1 0-27 Ethylbenzene 50.00 95 94 73-127 1 0-20 Toluene 50.00 93 93 72-126 0 0-20 Trichloroethene 50.00 88 90 74-122 2 0-20 Vinyl Chloride 50.00 81 85 65-131 4 0-24 Methyl-t-Butyl Ether (MTBE) 50.00 100 103 69-123 3 0-20 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0853 Walnut Creek, CA 94597-2537

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Matrix: Aqueous or Solid

Parameter Method QC Sample ID Date Analyzed Sample Conc DUP Conc RPD RPD CL Qualifiers

Solids, Total Suspended SM 2540 D 12-01-0883-3 01/16/12 665 644 3 0-10 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0853 Walnut Creek, CA 94597-2537 Preparation: EPA 3010A Total Method: EPA 6010B

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number

097-01-003-12,290 Aqueous ICP 5300 01/16/12 01/16/12 120116LA2

Parameter SPIKE ADDED LCS %REC LCSD %REC %REC CL ME_CL RPD RPD CL Qualifiers Antimony 0.5000 107 106 80-120 73-127 1 0-20 Arsenic 0.5000 111 110 80-120 73-127 1 0-20 Barium 0.5000 118 116 80-120 73-127 1 0-20 Beryllium 0.5000 108 107 80-120 73-127 1 0-20 Cadmium 0.5000 112 111 80-120 73-127 1 0-20 Chromium 0.5000 109 107 80-120 73-127 1 0-20 Cobalt 0.5000 120 118 80-120 73-127 1 0-20 Copper 0.5000 111 111 80-120 73-127 0 0-20 Lead 0.5000 119 118 80-120 73-127 1 0-20 Molybdenum 0.5000 109 109 80-120 73-127 0 0-20 Nickel 0.5000 115 114 80-120 73-127 1 0-20 Selenium 0.5000 104 104 80-120 73-127 0 0-20 Silver 0.2500 110 109 80-120 73-127 1 0-20 Thallium 0.5000 119 118 80-120 73-127 1 0-20 Vanadium 0.5000 108 107 80-120 73-127 1 0-20 Zinc 0.5000 112 111 80-120 73-127 1 0-20 Return to Contents Total number of LCS compounds : 16 Total number of ME compounds : 0 Total number of ME compounds allowed : 1 LCS ME CL validation result : Pass

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0853 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8015B (M)

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 099-14-065-136 Aqueous GC 47 01/17/12 01/18/12 120117B09A

Parameter SPIKE ADDED LCS %REC LCSD %REC %REC CL RPD RPD CL Qualifiers

TPH as Diesel 2000 79 86 75-117 8 0-13 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0853 Walnut Creek, CA 94597-2537 Preparation: EPA 7470A Total Method: EPA 7470A

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 099-04-008-5,787 Aqueous Mercury 01/16/12 01/16/12 120116L06

Parameter SPIKE ADDED LCS %REC LCSD %REC %REC CL RPD RPD CL Qualifiers

Mercury 0.01000 94 93 85-121 0 0-10 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0853 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8270C SIM PAHs

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number

099-06-008-425 Aqueous GC/MS AAA 01/16/12 01/19/12 120116L02

Parameter SPIKE ADDED LCS %REC LCSD %REC %REC CL ME_CL RPD RPD CL Qualifiers Naphthalene 2.000 80 80 21-133 2-152 0 0-25 2-Methylnaphthalene 2.000 79 78 21-140 1-160 1 0-25 1-Methylnaphthalene 2.000 81 79 20-140 0-160 2 0-25 Acenaphthylene 2.000 87 85 33-145 14-164 2 0-25 Acenaphthene 2.000 87 86 55-121 44-132 0 0-25 Fluorene 2.000 91 89 59-121 49-131 2 0-25 Phenanthrene 2.000 89 89 54-120 43-131 0 0-25 Anthracene 2.000 47 47 27-133 9-151 0 0-25 Fluoranthene 2.000 94 93 26-137 8-156 0 0-25 Pyrene 2.000 99 101 45-129 31-143 2 0-25 Benzo (a) Anthracene 2.000 91 90 33-143 15-161 1 0-25 Chrysene 2.000 94 94 17-168 0-193 0 0-25 Benzo (k) Fluoranthene 2.000 117 116 24-159 2-182 1 0-25 Benzo (b) Fluoranthene 2.000 120 115 24-159 2-182 4 0-25 Benzo (a) Pyrene 2.000 81 80 17-163 0-187 1 0-25 Indeno (1,2,3-c,d) Pyrene 2.000 118 114 25-175 0-200 4 0-25

Dibenz (a,h) Anthracene 2.000 114 110 25-175 0-200 4 0-25 Return to Contents Benzo (g,h,i) Perylene 2.000 114 109 25-157 3-179 4 0-25

Total number of LCS compounds : 18 Total number of ME compounds : 0 Total number of ME compounds allowed : 1 LCS ME CL validation result : Pass

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0853 Walnut Creek, CA 94597-2537 Preparation: EPA 5030C Method: EPA 8260B

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number

099-14-001-6,824 Aqueous GC/MS CC 01/14/12 01/14/12 120114L02

Parameter SPIKE ADDED LCS %REC LCSD %REC %REC CL ME_CL RPD RPD CL Qualifiers Benzene 50.00 104 107 80-120 73-127 3 0-20 Carbon Tetrachloride 50.00 90 91 66-138 54-150 1 0-20 Chlorobenzene 50.00 95 97 80-120 73-127 2 0-20 1,2-Dibromoethane 50.00 106 108 80-120 73-127 1 0-20 1,2-Dichlorobenzene 50.00 92 94 80-120 73-127 2 0-20 1,2-Dichloroethane 50.00 100 104 80-129 72-137 3 0-20 1,1-Dichloroethene 50.00 104 106 71-131 61-141 2 0-20 Ethylbenzene 50.00 100 102 80-123 73-130 2 0-20 Toluene 50.00 97 100 79-121 72-128 3 0-20 Trichloroethene 50.00 92 96 80-120 73-127 4 0-20 Vinyl Chloride 50.00 97 99 70-136 59-147 2 0-20 Methyl-t-Butyl Ether (MTBE) 50.00 108 109 72-126 63-135 1 0-22

Total number of LCS compounds : 12 Total number of ME compounds : 0 Total number of ME compounds allowed : 1 LCS ME CL validation result : Pass Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Glossary of Terms and Qualifiers

Work Order Number: 12-01-0853

Solid - Unless otherwise indicated, solid sample data is reported on a wet weight basis, not corrected for % moisture. All QC results are reported on a wet weight basis. MPN - Most Probable Number

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Return to Contents Page 22of23

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Return to Contents Page 1 of 33

Supplemental Report 1

Additional requested analyses have been added to the original report.

WORK ORDER NUMBER: 12-01-0763

Analytical Report For Client: Arcadis US, Inc. Client Project Name: Shell Ponds / Bay Point, CA / B0092353.0003 Attention: Josh Gravenmier 2999 Oak Road, Suite 300 Walnut Creek, CA 94597-2537

01/25/2012 Ranjit Clarke Project Manager Page 2 of 33

Contents Client Project Name: Shell Ponds / Bay Point, CA / B0092353.0003 Work Order Number: 12-01-0763

1 Case Narrative - 12010763 ...... 3

2 Client Sample Data ...... 4 2.1 EPA 8015B (M) C6-C44 (Aqueous) ...... 4 2.2 EPA 8270C Semi-Volatile Organics (Aqueous) ...... 5 2.3 EPA 8270C SIM PAHs (Aqueous) ...... 89 2.4 EPA 8260B Volatile Organics (Aqueous) ...... 9 2.5 EPA 6010B/7470A CAC Title 22 Metals / EPA 7470A Mercury 13 2.6 Combined Inorganic Tests ...... 14

3 TICs (SVOCs) - 12010763 ...... 15

4 TICs (VOCs) - 12010763 ...... 16

5 Quality Control Sample Data ...... 17 5.1 MS/MSD and/or Duplicate ...... 17 5.2 LCS/LCSD ...... 23

6 Glossary of Terms and Qualifiers ...... 30

7 Chain of Custody/Sample Receipt Form ...... 31 Page 3 of 33

Work Order Case Narrative

Project Name: Shell Ponds / Bay Point, CA / B0092353.0003 Calscience Work Order Number: 12-01-0763

Additional Analyses:

An e-mail request was received on 01/24/12 requesting EPA 8270C SVOCs + TICs to be analyzed and EPA 8260B TICs to be reported for the following sample:

SP-RW-011212

The TICs results have been added to the VOCs data already reported. The SVOCs were re- extracted and re-analyzed for the SVOCs full list + TICs. Only the top 10 TICs (based on compound concentration) were reported for both the VOCs and SVOCs.

These additional analyses are reported along with all of the data submitted in the original report dated 01/18/12. Return to Contents Page 4 of 33

Analytical Report

Arcadis US, Inc. Date Received: 01/13/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8015B (M) Units: ug/L Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 1 of 1

Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID SP-RW-011212 12-01-0763-1-G 01/12/12 Aqueous GC 45 01/15/12 01/16/12 120115B04A 13:00 03:50

Comment(s): -The total concentration includes individual carbon range concentrations (estimated), if any, below the RL reported as ND. Parameter Result RL DF Qual Parameter Result RL DF Qual C6 ND 250 5 C21-C22 ND 250 5 C7 ND 250 5 C23-C24 ND 250 5 C8 ND 250 5 C25-C28 ND 250 5 C9-C10 ND 250 5 C29-C32 ND 250 5 C11-C12 450 250 5 C33-C36 ND 250 5 C13-C14 570 250 5 C37-C40 ND 250 5 C15-C16 640 250 5 C41-C44 ND 250 5 C17-C18 590 250 5 C6-C44 Total 3000 250 5 C19-C20 350 250 5 Surrogates: REC (%) Control Qual Limits Decachlorobiphenyl 81 68-140 Method Blank 099-14-065-135 N/A Aqueous GC 45 01/15/12 01/15/12 120115B04A 23:14

Parameter Result RL DF Qual Parameter Result RL DF Qual C6 ND 50 1 C21-C22 ND 50 1 C7 ND 50 1 C23-C24 ND 50 1 C8 ND 50 1 C25-C28 ND 50 1 C9-C10 ND 50 1 C29-C32 ND 50 1 Return to Contents C11-C12 ND 50 1 C33-C36 ND 50 1 C13-C14 ND 50 1 C37-C40 ND 50 1 C15-C16 ND 50 1 C41-C44 ND 50 1 C17-C18 ND 50 1 C6-C44 Total ND 50 1 C19-C20 ND 50 1 Surrogates: REC (%) Control Qual Limits Decachlorobiphenyl 82 68-140

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/13/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8270C Units: ug/L Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 1 of 3 Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID SP-RW-011212 12-01-0763-1-I 01/12/12 Aqueous GC/MS SS 01/24/12 01/24/12 120124L03 13:00 19:37

Comment(s): -Results were evaluated to the MDL (DL), concentrations >= to the MDL (DL) but < RL (LOQ), if found, are qualified with a "J" flag. -Sample extracted outside recommended holding time. Parameter Result RL MDL DF Qual Parameter Result RL MDL DF Qual Acenaphthene ND 10 2.8 1 2,4-Dimethylphenol ND 10 2.4 1 Acenaphthylene ND 10 2.9 1 4,6-Dinitro-2-Methylphenol ND 50 14 1 Aniline ND 10 1.5 1 2,4-Dinitrophenol ND 50 13 1 Anthracene ND 10 3.0 1 2,4-Dinitrotoluene ND 10 2.3 1 Azobenzene ND 10 2.6 1 2,6-Dinitrotoluene ND 10 2.4 1 Benzidine ND 50 6.5 1 Fluoranthene 3.3 10 3.1 1 J Benzo (a) Anthracene ND 10 4.7 1 Fluorene ND 10 2.7 1 Benzo (a) Pyrene ND 10 2.4 1 Hexachloro-1,3-Butadiene ND 10 2.9 1 Benzo (b) Fluoranthene ND 10 2.3 1 Hexachlorobenzene ND 10 3.1 1 Benzo (g,h,i) Perylene 4.8 10 2.5 1 J Hexachlorocyclopentadiene ND 25 6.9 1 Benzo (k) Fluoranthene ND 10 3.2 1 Hexachloroethane ND 10 3.0 1 Benzoic Acid ND 50 12 1 Indeno (1,2,3-c,d) Pyrene ND 10 2.1 1 Benzyl Alcohol ND 10 2.2 1 Isophorone ND 10 2.5 1 Bis(2-Chloroethoxy) Methane ND 10 2.5 1 2-Methylnaphthalene ND 10 2.8 1 Bis(2-Chloroethyl) Ether ND 25 2.5 1 1-Methylnaphthalene 4.6 10 2.8 1 J Bis(2-Chloroisopropyl) Ether ND 10 3.2 1 2-Methylphenol ND 10 2.1 1 Bis(2-Ethylhexyl) Phthalate ND 10 3.2 1 3/4-Methylphenol ND 10 2.2 1 4-Bromophenyl-Phenyl Ether ND 10 2.7 1 N-Nitroso-di-n-propylamine ND 10 2.4 1

Butyl Benzyl Phthalate ND 10 2.5 1 N-Nitrosodimethylamine ND 10 3.2 1 Return to Contents 4-Chloro-3-Methylphenol ND 10 2.4 1 N-Nitrosodiphenylamine ND 10 2.8 1 4-Chloroaniline ND 10 2.0 1 Naphthalene ND 10 2.9 1 2-Chloronaphthalene ND 10 2.8 1 4-Nitroaniline ND 10 2.1 1 2-Chlorophenol ND 10 2.3 1 3-Nitroaniline ND 10 2.3 1 4-Chlorophenyl-Phenyl Ether ND 10 2.7 1 2-Nitroaniline ND 10 2.2 1 Chrysene ND 10 2.8 1 Nitrobenzene ND 25 3.0 1 Di-n-Butyl Phthalate ND 10 2.9 1 4-Nitrophenol ND 10 1.6 1 Di-n-Octyl Phthalate ND 10 2.5 1 2-Nitrophenol ND 10 2.6 1 Dibenz (a,h) Anthracene ND 10 2.5 1 Pentachlorophenol ND 10 4.6 1 Dibenzofuran ND 10 2.8 1 Phenanthrene ND 10 2.9 1 1,2-Dichlorobenzene ND 10 3.0 1 Phenol ND 10 2.1 1 1,3-Dichlorobenzene ND 10 3.1 1 Pyrene 14 10 3.0 1 1,4-Dichlorobenzene ND 10 2.9 1 Pyridine ND 10 3.0 1 3,3'-Dichlorobenzidine ND 25 2.6 1 1,2,4-Trichlorobenzene ND 10 2.8 1 2,4-Dichlorophenol ND 10 2.5 1 2,4,6-Trichlorophenol ND 10 2.5 1 Diethyl Phthalate ND 10 2.8 1 2,4,5-Trichlorophenol ND 10 2.5 1 Dimethyl Phthalate ND 10 2.6 1

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/13/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8270C % Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 2 of 3 Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID SP-RW-011212 12-01-0763-1-I 01/12/12 Aqueous GC/MS SS 01/24/12 01/24/12 120124L03 13:00 19:37

Comment(s): -Results were evaluated to the MDL (DL), concentrations >= to the MDL (DL) but < RL (LOQ), if found, are qualified with a "J" flag. -Sample extracted outside recommended holding time. Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits 2-Fluorobiphenyl 93 42-138 2-Fluorophenol 61 7-121 Nitrobenzene-d5 102 50-146 p-Terphenyl-d14 98 47-173 Phenol-d6 46 1-127 2,4,6-Tribromophenol 93 41-137 Return to Contents

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/13/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8270C Units: ug/L Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 3 of 3 Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID Method Blank 095-01-003-3,307 N/A Aqueous GC/MS SS 01/24/12 01/24/12 120124L03 17:54

Comment(s): -Results were evaluated to the MDL, concentrations >= to the MDL but < RL, if found, are qualified with a "J" flag. Parameter Result RL MDL DF Qual Parameter Result RL MDL DF Qual Acenaphthene ND 10 2.8 1 2,4-Dimethylphenol ND 10 2.4 1 Acenaphthylene ND 10 2.9 1 4,6-Dinitro-2-Methylphenol ND 50 14 1 Aniline ND 10 1.5 1 2,4-Dinitrophenol ND 50 13 1 Anthracene ND 10 3.0 1 2,4-Dinitrotoluene ND 10 2.3 1 Azobenzene ND 10 2.6 1 2,6-Dinitrotoluene ND 10 2.4 1 Benzidine ND 50 6.5 1 Fluoranthene ND 10 3.1 1 Benzo (a) Anthracene ND 10 4.7 1 Fluorene ND 10 2.7 1 Benzo (a) Pyrene ND 10 2.4 1 Hexachloro-1,3-Butadiene ND 10 2.9 1 Benzo (b) Fluoranthene ND 10 2.3 1 Hexachlorobenzene ND 10 3.1 1 Benzo (g,h,i) Perylene ND 10 2.5 1 Hexachlorocyclopentadiene ND 25 6.9 1 Benzo (k) Fluoranthene ND 10 3.2 1 Hexachloroethane ND 10 3.0 1 Benzoic Acid ND 50 12 1 Indeno (1,2,3-c,d) Pyrene ND 10 2.1 1 Benzyl Alcohol ND 10 2.2 1 Isophorone ND 10 2.5 1 Bis(2-Chloroethoxy) Methane ND 10 2.5 1 2-Methylnaphthalene ND 10 2.8 1 Bis(2-Chloroethyl) Ether ND 25 2.5 1 1-Methylnaphthalene ND 10 2.8 1 Bis(2-Chloroisopropyl) Ether ND 10 3.2 1 2-Methylphenol ND 10 2.1 1 Bis(2-Ethylhexyl) Phthalate ND 10 3.2 1 3/4-Methylphenol ND 10 2.2 1 4-Bromophenyl-Phenyl Ether ND 10 2.7 1 N-Nitroso-di-n-propylamine ND 10 2.4 1 Butyl Benzyl Phthalate ND 10 2.5 1 N-Nitrosodimethylamine ND 10 3.2 1 4-Chloro-3-Methylphenol ND 10 2.4 1 N-Nitrosodiphenylamine ND 10 2.8 1 Return to Contents 4-Chloroaniline ND 10 2.0 1 Naphthalene ND 10 2.9 1 2-Chloronaphthalene ND 10 2.8 1 4-Nitroaniline ND 10 2.1 1 2-Chlorophenol ND 10 2.3 1 3-Nitroaniline ND 10 2.3 1 4-Chlorophenyl-Phenyl Ether ND 10 2.7 1 2-Nitroaniline ND 10 2.2 1 Chrysene ND 10 2.8 1 Nitrobenzene ND 25 3.0 1 Di-n-Butyl Phthalate ND 10 2.9 1 4-Nitrophenol ND 10 1.6 1 Di-n-Octyl Phthalate ND 10 2.5 1 2-Nitrophenol ND 10 2.6 1 Dibenz (a,h) Anthracene ND 10 2.5 1 Pentachlorophenol ND 10 4.6 1 Dibenzofuran ND 10 2.8 1 Phenanthrene ND 10 2.9 1 1,2-Dichlorobenzene ND 10 3.0 1 Phenol ND 10 2.1 1 1,3-Dichlorobenzene ND 10 3.1 1 Pyrene ND 10 3.0 1 1,4-Dichlorobenzene ND 10 2.9 1 Pyridine ND 10 3.0 1 3,3'-Dichlorobenzidine ND 25 2.6 1 1,2,4-Trichlorobenzene ND 10 2.8 1 2,4-Dichlorophenol ND 10 2.5 1 2,4,6-Trichlorophenol ND 10 2.5 1 Diethyl Phthalate ND 10 2.8 1 2,4,5-Trichlorophenol ND 10 2.5 1 Dimethyl Phthalate ND 10 2.6 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits 2-Fluorobiphenyl 77 42-138 2-Fluorophenol 67 7-121 Nitrobenzene-d5 105 50-146 p-Terphenyl-d14 96 47-173 Phenol-d6 41 1-127 2,4,6-Tribromophenol 90 41-137

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/13/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8270C SIM PAHs Units: ug/L Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 1 of 1

Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID SP-RW-011212 12-01-0763-1-J 01/12/12 Aqueous GC/MS AAA 01/16/12 01/19/12 120116L02 13:00 20:20

Parameter Result RL DF Qual Parameter Result RL DF Qual Naphthalene ND 0.40 2 Pyrene 14 0.40 2 2-Methylnaphthalene ND 0.40 2 Benzo (a) Anthracene ND 0.40 2 1-Methylnaphthalene 5.9 0.40 2 Chrysene ND 0.40 2 Acenaphthylene 0.75 0.40 2 Benzo (k) Fluoranthene ND 0.40 2 Acenaphthene 0.63 0.40 2 Benzo (b) Fluoranthene ND 0.40 2 Fluorene ND 0.40 2 Benzo (a) Pyrene 0.71 0.40 2 Phenanthrene 1.1 0.40 2 Indeno (1,2,3-c,d) Pyrene 0.94 0.40 2 Anthracene ND 0.40 2 Dibenz (a,h) Anthracene ND 0.40 2 Fluoranthene 3.4 0.40 2 Benzo (g,h,i) Perylene 9.4 0.40 2 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits Nitrobenzene-d5 95 28-139 2-Fluorobiphenyl 94 33-144 p-Terphenyl-d14 83 23-160 Method Blank 099-06-008-425 N/A Aqueous GC/MS AAA 01/16/12 01/19/12 120116L02 18:08

Parameter Result RL DF Qual Parameter Result RL DF Qual Naphthalene ND 0.20 1 Pyrene ND 0.20 1 2-Methylnaphthalene ND 0.20 1 Benzo (a) Anthracene ND 0.20 1 1-Methylnaphthalene ND 0.20 1 Chrysene ND 0.20 1 Acenaphthylene ND 0.20 1 Benzo (k) Fluoranthene ND 0.20 1 Return to Contents Acenaphthene ND 0.20 1 Benzo (b) Fluoranthene ND 0.20 1 Fluorene ND 0.20 1 Benzo (a) Pyrene ND 0.20 1 Phenanthrene ND 0.20 1 Indeno (1,2,3-c,d) Pyrene ND 0.20 1 Anthracene ND 0.20 1 Dibenz (a,h) Anthracene ND 0.20 1 Fluoranthene ND 0.20 1 Benzo (g,h,i) Perylene ND 0.20 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits Nitrobenzene-d5 106 28-139 2-Fluorobiphenyl 88 33-144 p-Terphenyl-d14 92 23-160

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/13/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 5030C Method: EPA 8260B Units: ug/L Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 1 of 4

Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID SP-RW-011212 12-01-0763-1-B 01/12/12 Aqueous GC/MS CC 01/17/12 01/17/12 120117L01 13:00 18:17

Parameter Result RL DF Qual Parameter Result RL DF Qual Acetone 22 20 1 1,3-Dichloropropane ND 1.0 1 Benzene ND 0.50 1 2,2-Dichloropropane ND 1.0 1 Bromobenzene ND 1.0 1 1,1-Dichloropropene ND 1.0 1 Bromochloromethane ND 1.0 1 c-1,3-Dichloropropene ND 0.50 1 Bromodichloromethane ND 1.0 1 t-1,3-Dichloropropene ND 0.50 1 Bromoform ND 1.0 1 Ethylbenzene ND 1.0 1 Bromomethane ND 10 1 2-Hexanone ND 10 1 2-Butanone ND 10 1 Isopropylbenzene ND 1.0 1 n-Butylbenzene ND 1.0 1 p-Isopropyltoluene ND 1.0 1 sec-Butylbenzene ND 1.0 1 Methylene Chloride ND 10 1 tert-Butylbenzene ND 1.0 1 4-Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND 0.50 1 n-Propylbenzene ND 1.0 1 Chlorobenzene ND 1.0 1 Styrene ND 1.0 1 Chloroethane ND 5.0 1 1,1,1,2-Tetrachloroethane ND 1.0 1 Chloroform ND 1.0 1 1,1,2,2-Tetrachloroethane ND 1.0 1 Chloromethane ND 10 1 Tetrachloroethene ND 1.0 1 2-Chlorotoluene ND 1.0 1 Toluene ND 1.0 1 4-Chlorotoluene ND 1.0 1 1,2,3-Trichlorobenzene ND 1.0 1 Dibromochloromethane ND 1.0 1 1,2,4-Trichlorobenzene ND 1.0 1 1,2-Dibromo-3-Chloropropane ND 5.0 1 1,1,1-Trichloroethane ND 1.0 1 1,2-Dibromoethane ND 1.0 1 1,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Return to Contents Dibromomethane ND 1.0 1 1,1,2-Trichloroethane ND 1.0 1 1,2-Dichlorobenzene ND 1.0 1 Trichloroethene ND 1.0 1 1,3-Dichlorobenzene ND 1.0 1 Trichlorofluoromethane ND 10 1 1,4-Dichlorobenzene ND 1.0 1 1,2,3-Trichloropropane ND 5.0 1 Dichlorodifluoromethane ND 1.0 1 1,2,4-Trimethylbenzene ND 1.0 1 1,1-Dichloroethane ND 1.0 1 1,3,5-Trimethylbenzene ND 1.0 1 1,2-Dichloroethane ND 0.50 1 Vinyl Acetate ND 10 1 1,1-Dichloroethene ND 1.0 1 Vinyl Chloride ND 0.50 1 c-1,2-Dichloroethene ND 1.0 1 p/m-Xylene ND 1.0 1 t-1,2-Dichloroethene ND 1.0 1 o-Xylene ND 1.0 1 1,2-Dichloropropane ND 1.0 1 Methyl-t-Butyl Ether (MTBE) ND 1.0 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits 1,4-Bromofluorobenzene 105 80-120 Dibromofluoromethane 100 80-126 1,2-Dichloroethane-d4 102 80-134 Toluene-d8 101 80-120

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID SP-TB4-011212 12-01-0763-2-A 01/12/12 Aqueous GC/MS CC 01/14/12 01/14/12 120114L01 00:00 12:05

Parameter Result RL DF Qual Parameter Result RL DF Qual Acetone ND 20 1 1,3-Dichloropropane ND 1.0 1 Benzene ND 0.50 1 2,2-Dichloropropane ND 1.0 1 Bromobenzene ND 1.0 1 1,1-Dichloropropene ND 1.0 1 Bromochloromethane ND 1.0 1 c-1,3-Dichloropropene ND 0.50 1 Bromodichloromethane ND 1.0 1 t-1,3-Dichloropropene ND 0.50 1 Bromoform ND 1.0 1 Ethylbenzene ND 1.0 1 Bromomethane ND 10 1 2-Hexanone ND 10 1 2-Butanone ND 10 1 Isopropylbenzene ND 1.0 1 n-Butylbenzene ND 1.0 1 p-Isopropyltoluene ND 1.0 1 sec-Butylbenzene ND 1.0 1 Methylene Chloride ND 10 1 tert-Butylbenzene ND 1.0 1 4-Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND 0.50 1 n-Propylbenzene ND 1.0 1 Chlorobenzene ND 1.0 1 Styrene ND 1.0 1 Chloroethane ND 5.0 1 1,1,1,2-Tetrachloroethane ND 1.0 1 Chloroform ND 1.0 1 1,1,2,2-Tetrachloroethane ND 1.0 1 Chloromethane ND 10 1 Tetrachloroethene ND 1.0 1 2-Chlorotoluene ND 1.0 1 Toluene ND 1.0 1 4-Chlorotoluene ND 1.0 1 1,2,3-Trichlorobenzene ND 1.0 1 Dibromochloromethane ND 1.0 1 1,2,4-Trichlorobenzene ND 1.0 1 1,2-Dibromo-3-Chloropropane ND 5.0 1 1,1,1-Trichloroethane ND 1.0 1 1,2-Dibromoethane ND 1.0 1 1,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Return to Contents Dibromomethane ND 1.0 1 1,1,2-Trichloroethane ND 1.0 1 1,2-Dichlorobenzene ND 1.0 1 Trichloroethene ND 1.0 1 1,3-Dichlorobenzene ND 1.0 1 Trichlorofluoromethane ND 10 1 1,4-Dichlorobenzene ND 1.0 1 1,2,3-Trichloropropane ND 5.0 1 Dichlorodifluoromethane ND 1.0 1 1,2,4-Trimethylbenzene ND 1.0 1 1,1-Dichloroethane ND 1.0 1 1,3,5-Trimethylbenzene ND 1.0 1 1,2-Dichloroethane ND 0.50 1 Vinyl Acetate ND 10 1 1,1-Dichloroethene ND 1.0 1 Vinyl Chloride ND 0.50 1 c-1,2-Dichloroethene ND 1.0 1 p/m-Xylene ND 1.0 1 t-1,2-Dichloroethene ND 1.0 1 o-Xylene ND 1.0 1 1,2-Dichloropropane ND 1.0 1 Methyl-t-Butyl Ether (MTBE) ND 1.0 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits 1,4-Bromofluorobenzene 99 80-120 Dibromofluoromethane 101 80-126 1,2-Dichloroethane-d4 110 80-134 Toluene-d8 101 80-120

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID Method Blank 099-14-001-6,805 N/A Aqueous GC/MS CC 01/14/12 01/14/12 120114L01 11:38

Parameter Result RL DF Qual Parameter Result RL DF Qual Acetone ND 20 1 1,3-Dichloropropane ND 1.0 1 Benzene ND 0.50 1 2,2-Dichloropropane ND 1.0 1 Bromobenzene ND 1.0 1 1,1-Dichloropropene ND 1.0 1 Bromochloromethane ND 1.0 1 c-1,3-Dichloropropene ND 0.50 1 Bromodichloromethane ND 1.0 1 t-1,3-Dichloropropene ND 0.50 1 Bromoform ND 1.0 1 Ethylbenzene ND 1.0 1 Bromomethane ND 10 1 2-Hexanone ND 10 1 2-Butanone ND 10 1 Isopropylbenzene ND 1.0 1 n-Butylbenzene ND 1.0 1 p-Isopropyltoluene ND 1.0 1 sec-Butylbenzene ND 1.0 1 Methylene Chloride ND 10 1 tert-Butylbenzene ND 1.0 1 4-Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND 0.50 1 n-Propylbenzene ND 1.0 1 Chlorobenzene ND 1.0 1 Styrene ND 1.0 1 Chloroethane ND 5.0 1 1,1,1,2-Tetrachloroethane ND 1.0 1 Chloroform ND 1.0 1 1,1,2,2-Tetrachloroethane ND 1.0 1 Chloromethane ND 10 1 Tetrachloroethene ND 1.0 1 2-Chlorotoluene ND 1.0 1 Toluene ND 1.0 1 4-Chlorotoluene ND 1.0 1 1,2,3-Trichlorobenzene ND 1.0 1 Dibromochloromethane ND 1.0 1 1,2,4-Trichlorobenzene ND 1.0 1 1,2-Dibromo-3-Chloropropane ND 5.0 1 1,1,1-Trichloroethane ND 1.0 1 1,2-Dibromoethane ND 1.0 1 1,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Return to Contents Dibromomethane ND 1.0 1 1,1,2-Trichloroethane ND 1.0 1 1,2-Dichlorobenzene ND 1.0 1 Trichloroethene ND 1.0 1 1,3-Dichlorobenzene ND 1.0 1 Trichlorofluoromethane ND 10 1 1,4-Dichlorobenzene ND 1.0 1 1,2,3-Trichloropropane ND 5.0 1 Dichlorodifluoromethane ND 1.0 1 1,2,4-Trimethylbenzene ND 1.0 1 1,1-Dichloroethane ND 1.0 1 1,3,5-Trimethylbenzene ND 1.0 1 1,2-Dichloroethane ND 0.50 1 Vinyl Acetate ND 10 1 1,1-Dichloroethene ND 1.0 1 Vinyl Chloride ND 0.50 1 c-1,2-Dichloroethene ND 1.0 1 p/m-Xylene ND 1.0 1 t-1,2-Dichloroethene ND 1.0 1 o-Xylene ND 1.0 1 1,2-Dichloropropane ND 1.0 1 Methyl-t-Butyl Ether (MTBE) ND 1.0 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits 1,4-Bromofluorobenzene 101 80-120 Dibromofluoromethane 100 80-126 1,2-Dichloroethane-d4 110 80-134 Toluene-d8 101 80-120

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID Method Blank 099-14-001-6,829 N/A Aqueous GC/MS CC 01/17/12 01/17/12 120117L01 14:13

Parameter Result RL DF Qual Parameter Result RL DF Qual Acetone ND 20 1 1,3-Dichloropropane ND 1.0 1 Benzene ND 0.50 1 2,2-Dichloropropane ND 1.0 1 Bromobenzene ND 1.0 1 1,1-Dichloropropene ND 1.0 1 Bromochloromethane ND 1.0 1 c-1,3-Dichloropropene ND 0.50 1 Bromodichloromethane ND 1.0 1 t-1,3-Dichloropropene ND 0.50 1 Bromoform ND 1.0 1 Ethylbenzene ND 1.0 1 Bromomethane ND 10 1 2-Hexanone ND 10 1 2-Butanone ND 10 1 Isopropylbenzene ND 1.0 1 n-Butylbenzene ND 1.0 1 p-Isopropyltoluene ND 1.0 1 sec-Butylbenzene ND 1.0 1 Methylene Chloride ND 10 1 tert-Butylbenzene ND 1.0 1 4-Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND 0.50 1 n-Propylbenzene ND 1.0 1 Chlorobenzene ND 1.0 1 Styrene ND 1.0 1 Chloroethane ND 5.0 1 1,1,1,2-Tetrachloroethane ND 1.0 1 Chloroform ND 1.0 1 1,1,2,2-Tetrachloroethane ND 1.0 1 Chloromethane ND 10 1 Tetrachloroethene ND 1.0 1 2-Chlorotoluene ND 1.0 1 Toluene ND 1.0 1 4-Chlorotoluene ND 1.0 1 1,2,3-Trichlorobenzene ND 1.0 1 Dibromochloromethane ND 1.0 1 1,2,4-Trichlorobenzene ND 1.0 1 1,2-Dibromo-3-Chloropropane ND 5.0 1 1,1,1-Trichloroethane ND 1.0 1 1,2-Dibromoethane ND 1.0 1 1,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Return to Contents Dibromomethane ND 1.0 1 1,1,2-Trichloroethane ND 1.0 1 1,2-Dichlorobenzene ND 1.0 1 Trichloroethene ND 1.0 1 1,3-Dichlorobenzene ND 1.0 1 Trichlorofluoromethane ND 10 1 1,4-Dichlorobenzene ND 1.0 1 1,2,3-Trichloropropane ND 5.0 1 Dichlorodifluoromethane ND 1.0 1 1,2,4-Trimethylbenzene ND 1.0 1 1,1-Dichloroethane ND 1.0 1 1,3,5-Trimethylbenzene ND 1.0 1 1,2-Dichloroethane ND 0.50 1 Vinyl Acetate ND 10 1 1,1-Dichloroethene ND 1.0 1 Vinyl Chloride ND 0.50 1 c-1,2-Dichloroethene ND 1.0 1 p/m-Xylene ND 1.0 1 t-1,2-Dichloroethene ND 1.0 1 o-Xylene ND 1.0 1 1,2-Dichloropropane ND 1.0 1 Methyl-t-Butyl Ether (MTBE) ND 1.0 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits 1,4-Bromofluorobenzene 102 80-120 Dibromofluoromethane 102 80-126 1,2-Dichloroethane-d4 107 80-134 Toluene-d8 101 80-120

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/13/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 3010A Total / EPA 7470A Total Method: EPA 6010B / EPA 7470A Units: mg/L Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 1 of 1 Lab Sample Date /Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID SP-RW-011212 12-01-0763-1-D 01/12/12 Aqueous ICP 5300 01/13/12 01/14/12 120113LA1 13:00 10:21

Comment(s): -Mercury analysis was performed on 01/16/12 12:34 with batch 120113L01. Parameter Result RL DF Qual Parameter Result RL DF Qual Antimony 0.0210 0.0150 1 Molybdenum 0.0564 0.0100 1 Arsenic ND 0.0100 1 Nickel 0.0233 0.0100 1 Barium 0.175 0.0100 1 Selenium ND 0.0150 1 Beryllium ND 0.0100 1 Silver ND 0.00500 1 Cadmium ND 0.0100 1 Thallium ND 0.0150 1 Chromium 0.0517 0.0100 1 Vanadium 0.0333 0.0100 1 Cobalt ND 0.0100 1 Mercury ND 0.000500 1 Copper 0.0341 0.0100 1 Zinc 0.0933 0.0100 1 Lead 0.0267 0.0100 1 Method Blank 099-04-008-5,783 N/A Aqueous Mercury 01/13/12 01/13/12 120113L01 12:58

Comment(s): -Preparation/analysis for Mercury was performed by EPA 7470A. Parameter Result RL DF Qual Mercury ND 0.000500 1

Method Blank 097-01-003-12,288 N/A Aqueous ICP 5300 01/13/12 01/13/12 120113LA1 11:56 Return to Contents Parameter Result RL DF Qual Parameter Result RL DF Qual Antimony ND 0.0150 1 Lead ND 0.0100 1 Arsenic ND 0.0100 1 Molybdenum ND 0.0100 1 Barium ND 0.0100 1 Nickel ND 0.0100 1 Beryllium ND 0.0100 1 Selenium ND 0.0150 1 Cadmium ND 0.0100 1 Silver ND 0.00500 1 Chromium ND 0.0100 1 Thallium ND 0.0150 1 Cobalt ND 0.0100 1 Vanadium ND 0.0100 1 Copper ND 0.0100 1 Zinc ND 0.0100 1

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/13/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537

Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 1 of 1

Lab Sample Number Date Client Sample Number Collected Matrix SP-RW-011212 12-01-0763-1 01/12/12 Aqueous

Parameter Results RL DF Qual Units Date Date Method Prepared Analyzed Solids, Total Suspended 242 1.00 1 mg/L 01/16/12 01/16/12 SM 2540 D Method Blank N/A Aqueous

Parameter Results RL DF Qual Units Date Date Method Prepared Analyzed Solids, Total Suspended ND 1.0 1 mg/L 01/16/12 01/16/12 SM 2540 D Return to Contents

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/13/12 2999 Oak Road, Suite 300 Work Order No.: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8270C Tentatively Identified Compounds (TICs) Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 1 of 1

Estimated Work Order CEL Sample Sample ID Compound CAS Number RT Conc. (ug/L)

12-01-0763 1SP-RW-011212Heptane, 2,2,6,... 141-70-8 5.65 22 12-01-0763 1SP-RW-0112123-Heptene, 2,2,... 123-48-8 5.73 25 12-01-0763 1SP-RW-011212Benzene, 1-meth... 31574-44-4 6.82 17 12-01-0763 1SP-RW-011212Undecane, 2,6-d... 17301-23-4 7.24 16 12-01-0763 1SP-RW-011212Cyclohexane, 2-... 54676-39-0 7.39 21 12-01-0763 1SP-RW-0112122,5-Furandicarb... 823-82-5 7.90 19 12-01-0763 1SP-RW-011212Dodecane, 2,6,1... 3891-98-3 8.29 17 12-01-0763 1SP-RW-011212Pentadecane, 2,... 3892-00-0 9.83 17 12-01-0763 1SP-RW-011212Pentadecane, 2,... 1921-70-6 10.12 19 12-01-0763 1SP-RW-011212Hexadecane, 2,6... 638-36-8 10.64 15 Return to Contents

The listed compounds were evaluated as Tentatively Identified Compounds (TIC). TIC evaluations, not being supported by Method Detection Limits (MDLs), preclude quantification of a Reporting Limit.

RT - Retention Time * Page 16 of 33

Analytical Report

Arcadis US, Inc. Date Received: 01/11/12 2999 Oak Road, Suite 300 Work Order No.: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 5030B Method: EPA 8260B Tentatively Identified Compounds (TICs) Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 1 of 1

Estimated Work Order CEL Sample Sample ID Compound CAS Number RT Conc. (ug/L)

12-01-0763 1SP-RW-011212trans-2-Ethyl-3... 61568-36-3 12.37 9.0 12-01-0763 1SP-RW-011212trans-2-Ethyl-3... 61568-36-3 12.44 22 12-01-0763 1SP-RW-011212cis-3-Methyl-2-... 118068-76-1 13.56 13 12-01-0763 1 SP-RW-011212 Benzene, 4-ethy... 934-80-5 13.88 9.1 12-01-0763 1SP-RW-0112123-Bromo-1-pheny... 4392-24-9 14.00 10 12-01-0763 1SP-RW-011212Benzene, 1,2,4,... 95-93-2 14.44 10 12-01-0763 1SP-RW-0112121-Oxa-4-thiaspi... 57156-88-4 15.44 23 12-01-0763 1SP-RW-0112121-Butyl-6-hydro... 1000216-18-8 17.18 12 Return to Contents

The listed compounds were evaluated as Tentatively Identified Compounds (TIC). TIC evaluations, not being supported by Method Detection Limits (MDLs), preclude quantification of a Reporting Limit.

RT - Retention Time * Page 17 of 33

Quality Control - Spike/Spike Duplicate

Arcadis US, Inc. Date Received: 01/13/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 3005A Filt. Method: EPA 6010B

Project Shell Ponds / Bay Point, CA / B0092353.0003

Date Date MS/MSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 12-01-0630-4 Aqueous ICP 5300 01/13/12 01/13/12 120113SA1

Parameter SPIKE ADDED MS %REC MSD %REC %REC CL RPD RPD CL Qualifiers

Antimony 0.5000 104 116 72-132 11 0-10 4 Arsenic 0.5000 113 114 80-140 1 0-11 Barium 0.5000 104 108 87-123 3 0-6 Beryllium 0.5000 111 112 89-119 1 0-8 Cadmium 0.5000 103 105 82-124 2 0-7 Chromium 0.5000 105 107 86-122 2 0-8 Cobalt 0.5000 103 104 83-125 1 0-7 Copper 0.5000 114 116 78-126 2 0-7 Lead 0.5000 104 104 84-120 0 0-7 Molybdenum 0.5000 105 107 78-126 2 0-7 Nickel 0.5000 103 105 84-120 2 0-7 Selenium 0.5000 114 116 79-127 1 0-9 Silver 0.2500 108 109 86-128 1 0-7 Thallium 0.5000 95 95 79-121 0 0-8 Vanadium 0.5000 110 112 88-118 2 0-7 Return to Contents Zinc 0.5000 104 107 89-131 3 0-8

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - PDS / PDSD

Arcadis US, Inc. Date Received 01/13/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 3005A Filt. Method: EPA 6010B

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date Analyzed PDS / PDSD Batch Quality Control Sample ID Matrix Instrument Prepared Number

12-01-0630-4 Aqueous ICP 5300 01/13/12 01/13/12 120113SA1

Parameter SPIKE ADDED PDS %REC PDSD %REC %REC CL RPD RPD CL Qualifiers

Antimony 0.5000 92 93 75-125 1 0-10 Arsenic 0.5000 105 105 75-125 1 0-11 Barium 0.5000 104 103 75-125 1 0-6 Beryllium 0.5000 104 105 75-125 1 0-8 Cadmium 0.5000 100 99 75-125 1 0-7 Chromium 0.5000 103 103 75-125 0 0-8 Cobalt 0.5000 99 99 75-125 0 0-7 Copper 0.5000 112 110 75-125 1 0-7 Lead 0.5000 98 99 75-125 1 0-7 Molybdenum 0.5000 102 102 75-125 0 0-7 Nickel 0.5000 100 100 75-125 0 0-7 Selenium 0.5000 108 108 75-125 0 0-9 Silver 0.2500 107 106 75-125 1 0-7 Thallium 0.5000 91 92 75-125 1 0-8 Vanadium 0.5000 107 107 75-125 0 0-7

Zinc 0.5000 103 102 75-125 1 0-8 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - Spike/Spike Duplicate

Arcadis US, Inc. Date Received: 01/13/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 7470A Filt. Method: EPA 7470A

Project Shell Ponds / Bay Point, CA / B0092353.0003

Date Date MS/MSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 12-01-0706-2 Aqueous Mercury 01/13/12 01/13/12 120113S01

Parameter SPIKE ADDED MS %REC MSD %REC %REC CL RPD RPD CL Qualifiers

Mercury 0.01000 100 102 66-126 2 0-7 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - Spike/Spike Duplicate

Arcadis US, Inc. Date Received: 01/13/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 5030C Method: EPA 8260B

Project Shell Ponds / Bay Point, CA / B0092353.0003

Date Date MS/MSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 12-01-0796-1 Aqueous GC/MS CC 01/14/12 01/14/12 120114S01

Parameter SPIKE ADDED MS %REC MSD %REC %REC CL RPD RPD CL Qualifiers

Benzene 50.00 101 113 78-120 11 0-20 Carbon Tetrachloride 50.00 99 109 67-139 10 0-20 Chlorobenzene 50.00 93 104 80-120 11 0-20 1,2-Dibromoethane 50.00 101 114 80-123 12 0-20 1,2-Dichlorobenzene 50.00 91 100 76-120 10 0-20 1,2-Dichloroethane 50.00 110 120 76-130 9 0-20 1,1-Dichloroethene 50.00 98 110 70-130 11 0-27 Ethylbenzene 50.00 99 110 73-127 11 0-20 Toluene 50.00 97 106 72-126 9 0-20 Trichloroethene 50.00 93 101 74-122 8 0-20 Vinyl Chloride 50.00 78 97 65-131 21 0-24 Methyl-t-Butyl Ether (MTBE) 50.00 98 112 69-123 13 0-20 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - Spike/Spike Duplicate

Arcadis US, Inc. Date Received: 01/13/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 5030C Method: EPA 8260B

Project Shell Ponds / Bay Point, CA / B0092353.0003

Date Date MS/MSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 12-01-0800-5 Aqueous GC/MS CC 01/17/12 01/17/12 120117S01

Parameter SPIKE ADDED MS %REC MSD %REC %REC CL RPD RPD CL Qualifiers

Benzene 50.00 104 112 78-120 8 0-20 Carbon Tetrachloride 50.00 98 109 67-139 11 0-20 Chlorobenzene 50.00 91 101 80-120 10 0-20 1,2-Dibromoethane 50.00 106 117 80-123 9 0-20 1,2-Dichlorobenzene 50.00 91 98 76-120 7 0-20 1,2-Dichloroethane 50.00 106 113 76-130 6 0-20 1,1-Dichloroethene 50.00 104 107 70-130 3 0-27 Ethylbenzene 50.00 98 107 73-127 9 0-20 Toluene 50.00 97 106 72-126 8 0-20 Trichloroethene 50.00 95 102 74-122 8 0-20 Vinyl Chloride 50.00 102 103 65-131 1 0-24 Methyl-t-Butyl Ether (MTBE) 50.00 116 127 69-123 9 0-20 3 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Matrix: Aqueous or Solid

Parameter Method QC Sample ID Date Analyzed Sample Conc DUP Conc RPD RPD CL Qualifiers

Solids, Total Suspended SM 2540 D 12-01-0712-5 01/16/12 7130 7130 0 0-10 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 3010A Total Method: EPA 6010B

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number

097-01-003-12,288 Aqueous ICP 5300 01/13/12 01/13/12 120113LA1

Parameter SPIKE ADDED LCS %REC LCSD %REC %REC CL ME_CL RPD RPD CL Qualifiers Antimony 0.5000 97 97 80-120 73-127 1 0-20 Arsenic 0.5000 98 98 80-120 73-127 1 0-20 Barium 0.5000 106 106 80-120 73-127 0 0-20 Beryllium 0.5000 99 98 80-120 73-127 1 0-20 Cadmium 0.5000 101 101 80-120 73-127 1 0-20 Chromium 0.5000 100 99 80-120 73-127 1 0-20 Cobalt 0.5000 108 107 80-120 73-127 0 0-20 Copper 0.5000 100 99 80-120 73-127 1 0-20 Lead 0.5000 104 103 80-120 73-127 1 0-20 Molybdenum 0.5000 100 99 80-120 73-127 1 0-20 Nickel 0.5000 105 104 80-120 73-127 1 0-20 Selenium 0.5000 96 96 80-120 73-127 1 0-20 Silver 0.2500 95 94 80-120 73-127 1 0-20 Thallium 0.5000 104 104 80-120 73-127 1 0-20 Vanadium 0.5000 98 98 80-120 73-127 1 0-20 Zinc 0.5000 101 100 80-120 73-127 1 0-20 Return to Contents Total number of LCS compounds : 16 Total number of ME compounds : 0 Total number of ME compounds allowed : 1 LCS ME CL validation result : Pass

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8015B (M)

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 099-14-065-135 Aqueous GC 45 01/15/12 01/15/12 120115B04A

Parameter SPIKE ADDED LCS %REC LCSD %REC %REC CL RPD RPD CL Qualifiers

TPH as Diesel 2000 77 82 75-117 7 0-13 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 7470A Total Method: EPA 7470A

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 099-04-008-5,783 Aqueous Mercury 01/13/12 01/13/12 120113L01

Parameter SPIKE ADDED LCS %REC LCSD %REC %REC CL RPD RPD CL Qualifiers

Mercury 0.01000 99 98 85-121 1 0-10 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8270C

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number

095-01-003-3,307 Aqueous GC/MS SS 01/24/12 01/24/12 120124L03

Parameter SPIKE ADDED LCS %REC LCSD %REC %REC CL ME_CL RPD RPD CL Qualifiers Acenaphthene 200.0 87 87 55-139 41-153 0 0-17 Acenaphthylene 200.0 81 81 33-145 14-164 1 0-20 Butyl Benzyl Phthalate 200.0 92 91 0-152 0-177 1 0-20 4-Chloro-3-Methylphenol 200.0 88 89 55-121 44-132 1 0-18 2-Chlorophenol 200.0 93 93 53-113 43-123 0 0-17 1,4-Dichlorobenzene 200.0 88 88 50-122 38-134 0 0-19 Dimethyl Phthalate 200.0 93 92 0-112 0-131 0 0-20 2,4-Dinitrotoluene 200.0 95 95 41-161 21-181 0 0-22 Fluorene 200.0 88 89 59-121 49-131 0 0-20 N-Nitroso-di-n-propylamine 200.0 88 89 56-146 41-161 1 0-22 Naphthalene 200.0 88 88 21-133 2-152 0 0-20 4-Nitrophenol 200.0 46 46 1-145 0-169 2 0-29 Pentachlorophenol 200.0 74 75 34-130 18-146 1 0-23 Phenol 200.0 71 72 4-142 0-165 1 0-24 Pyrene 200.0 86 86 38-170 16-192 1 0-27 1,2,4-Trichlorobenzene 200.0 90 90 49-121 37-133 1 0-19 Return to Contents Total number of LCS compounds : 16 Total number of ME compounds : 0 Total number of ME compounds allowed : 1 LCS ME CL validation result : Pass

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8270C SIM PAHs

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number

099-06-008-425 Aqueous GC/MS AAA 01/16/12 01/19/12 120116L02

Dibenz (a,h) Anthracene 2.000 114 110 25-175 0-200 4 0-25 Return to Contents Benzo (g,h,i) Perylene 2.000 114 109 25-157 3-179 4 0-25

Total number of LCS compounds : 18 Total number of ME compounds : 0 Total number of ME compounds allowed : 1 LCS ME CL validation result : Pass

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 5030C Method: EPA 8260B

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number

099-14-001-6,805 Aqueous GC/MS CC 01/14/12 01/14/12 120114L01

Parameter SPIKE ADDED LCS %REC LCSD %REC %REC CL ME_CL RPD RPD CL Qualifiers Benzene 50.00 115 116 80-120 73-127 1 0-20 Carbon Tetrachloride 50.00 115 109 66-138 54-150 5 0-20 Chlorobenzene 50.00 106 105 80-120 73-127 1 0-20 1,2-Dibromoethane 50.00 118 117 80-120 73-127 1 0-20 1,2-Dichlorobenzene 50.00 105 101 80-120 73-127 3 0-20 1,2-Dichloroethane 50.00 124 121 80-129 72-137 3 0-20 1,1-Dichloroethene 50.00 116 113 71-131 61-141 2 0-20 Ethylbenzene 50.00 114 113 80-123 73-130 2 0-20 Toluene 50.00 107 107 79-121 72-128 0 0-20 Trichloroethene 50.00 106 105 80-120 73-127 1 0-20 Vinyl Chloride 50.00 102 100 70-136 59-147 2 0-20 Methyl-t-Butyl Ether (MTBE) 50.00 113 111 72-126 63-135 2 0-22

Total number of LCS compounds : 12 Total number of ME compounds : 0 Total number of ME compounds allowed : 1 LCS ME CL validation result : Pass Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 5030C Method: EPA 8260B

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number

099-14-001-6,829 Aqueous GC/MS CC 01/17/12 01/17/12 120117L01

Parameter SPIKE ADDED LCS %REC LCSD %REC %REC CL ME_CL RPD RPD CL Qualifiers Benzene 50.00 101 103 80-120 73-127 1 0-20 Carbon Tetrachloride 50.00 101 103 66-138 54-150 2 0-20 Chlorobenzene 50.00 93 93 80-120 73-127 0 0-20 1,2-Dibromoethane 50.00 103 104 80-120 73-127 1 0-20 1,2-Dichlorobenzene 50.00 90 89 80-120 73-127 1 0-20 1,2-Dichloroethane 50.00 104 106 80-129 72-137 3 0-20 1,1-Dichloroethene 50.00 100 101 71-131 61-141 1 0-20 Ethylbenzene 50.00 99 99 80-123 73-130 0 0-20 Toluene 50.00 95 95 79-121 72-128 1 0-20 Trichloroethene 50.00 94 94 80-120 73-127 0 0-20 Vinyl Chloride 50.00 99 97 70-136 59-147 2 0-20 Methyl-t-Butyl Ether (MTBE) 50.00 106 108 72-126 63-135 2 0-22

Total number of LCS compounds : 12 Total number of ME compounds : 0 Total number of ME compounds allowed : 1 LCS ME CL validation result : Pass Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Glossary of Terms and Qualifiers

Work Order Number: 12-01-0763

Solid - Unless otherwise indicated, solid sample data is reported on a wet weight basis, not corrected for % moisture. All QC results are reported on a wet weight basis. MPN - Most Probable Number

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Return to Contents Page 32of33

Return to Contents Page 33 of 33

Ranjit Clarke

From: Fenter, Cynthia [[email protected]] Sent: Tuesday, January 24, 2012 12:37 PM To: Ranjit Clarke Cc: DeShields, Bridgette; Noble, Michele; Walsh, Kimberly; Svitana, Aaron; Lutz, Christopher Subject: Reanalysis of return water

______

NOTICE: This e-mail and any files transmitted with it are the property of ARCADIS U.S., Inc. and its affiliates. All rights, including without limitation copyright, are reserved. The proprietary information contained in this e-mail message, and any files transmitted with it, is intended for the use of the recipient(s) named above. If the reader of this e-mail is not the intended recipient, you are hereby notified that you have received this e-mail in error and that any review, distribution or copying of this e-mail or any files transmitted with it is strictly prohibited. If you have received this e-mail in error, please notify the sender immediately and delete the original message and any files transmitted. The unauthorized use of this e- Return to Contents mail or any files transmitted with it is prohibited and disclaimed by ARCADIS U.S., Inc. and its affiliates. Nothing herein is intended to constitute the offering or performance of services where otherwise restricted by law.

1 Page 1 of 25

WORK ORDER NUMBER: 12-01-0763

Analytical Report For Client: Arcadis US, Inc. Client Project Name: Shell Ponds / Bay Point, CA / B0092353.0003 Attention: Josh Gravenmier 2999 Oak Road, Suite 300 Walnut Creek, CA 94597-2537

01/20/2012 Ranjit Clarke Project Manager Page 2 of 25

Contents Client Project Name: Shell Ponds / Bay Point, CA / B0092353.0003 Work Order Number: 12-01-0763

2 Quality Control Sample Data ...... 11 2.1 MS/MSD and/or Duplicate ...... 11 2.2 LCS/LCSD ...... 17

3 Glossary of Terms and Qualifiers ...... 23

4 Chain of Custody/Sample Receipt Form ...... 24 Page 3 of 25

Analytical Report

Comment(s): -The total concentration includes individual carbon range concentrations (estimated), if any, below the RL reported as ND. Parameter Result RL DF Qual Parameter Result RL DF Qual C6 ND 250 5 C21-C22 ND 250 5 C7 ND 250 5 C23-C24 ND 250 5 C8 ND 250 5 C25-C28 ND 250 5 C9-C10 ND 250 5 C29-C32 ND 250 5 C11-C12 450 250 5 C33-C36 ND 250 5 C13-C14 570 250 5 C37-C40 ND 250 5 C15-C16 640 250 5 C41-C44 ND 250 5 C17-C18 590 250 5 C6-C44 Total 3000 250 5 C19-C20 350 250 5 Surrogates: REC (%) Control Qual Limits Decachlorobiphenyl 81 68-140 Method Blank 099-14-065-135 N/A Aqueous GC 45 01/15/12 01/15/12 120115B04A 23:14

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Parameter Result RL DF Qual Parameter Result RL DF Qual Naphthalene ND 0.20 1 Pyrene ND 0.20 1 2-Methylnaphthalene ND 0.20 1 Benzo (a) Anthracene ND 0.20 1 1-Methylnaphthalene ND 0.20 1 Chrysene ND 0.20 1 Acenaphthylene ND 0.20 1 Benzo (k) Fluoranthene ND 0.20 1 Return to Contents Acenaphthene ND 0.20 1 Benzo (b) Fluoranthene ND 0.20 1 Fluorene ND 0.20 1 Benzo (a) Pyrene ND 0.20 1 Phenanthrene ND 0.20 1 Indeno (1,2,3-c,d) Pyrene ND 0.20 1 Anthracene ND 0.20 1 Dibenz (a,h) Anthracene ND 0.20 1 Fluoranthene ND 0.20 1 Benzo (g,h,i) Perylene ND 0.20 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits Nitrobenzene-d5 106 28-139 2-Fluorobiphenyl 88 33-144 p-Terphenyl-d14 92 23-160

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Parameter Result RL DF Qual Parameter Result RL DF Qual Acetone ND 20 1 1,3-Dichloropropane ND 1.0 1 Benzene ND 0.50 1 2,2-Dichloropropane ND 1.0 1 Bromobenzene ND 1.0 1 1,1-Dichloropropene ND 1.0 1 Bromochloromethane ND 1.0 1 c-1,3-Dichloropropene ND 0.50 1 Bromodichloromethane ND 1.0 1 t-1,3-Dichloropropene ND 0.50 1 Bromoform ND 1.0 1 Ethylbenzene ND 1.0 1 Bromomethane ND 10 1 2-Hexanone ND 10 1 2-Butanone ND 10 1 Isopropylbenzene ND 1.0 1 n-Butylbenzene ND 1.0 1 p-Isopropyltoluene ND 1.0 1 sec-Butylbenzene ND 1.0 1 Methylene Chloride ND 10 1 tert-Butylbenzene ND 1.0 1 4-Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND 0.50 1 n-Propylbenzene ND 1.0 1 Chlorobenzene ND 1.0 1 Styrene ND 1.0 1 Chloroethane ND 5.0 1 1,1,1,2-Tetrachloroethane ND 1.0 1 Chloroform ND 1.0 1 1,1,2,2-Tetrachloroethane ND 1.0 1 Chloromethane ND 10 1 Tetrachloroethene ND 1.0 1 2-Chlorotoluene ND 1.0 1 Toluene ND 1.0 1 4-Chlorotoluene ND 1.0 1 1,2,3-Trichlorobenzene ND 1.0 1 Dibromochloromethane ND 1.0 1 1,2,4-Trichlorobenzene ND 1.0 1 1,2-Dibromo-3-Chloropropane ND 5.0 1 1,1,1-Trichloroethane ND 1.0 1 1,2-Dibromoethane ND 1.0 1 1,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Return to Contents Dibromomethane ND 1.0 1 1,1,2-Trichloroethane ND 1.0 1 1,2-Dichlorobenzene ND 1.0 1 Trichloroethene ND 1.0 1 1,3-Dichlorobenzene ND 1.0 1 Trichlorofluoromethane ND 10 1 1,4-Dichlorobenzene ND 1.0 1 1,2,3-Trichloropropane ND 5.0 1 Dichlorodifluoromethane ND 1.0 1 1,2,4-Trimethylbenzene ND 1.0 1 1,1-Dichloroethane ND 1.0 1 1,3,5-Trimethylbenzene ND 1.0 1 1,2-Dichloroethane ND 0.50 1 Vinyl Acetate ND 10 1 1,1-Dichloroethene ND 1.0 1 Vinyl Chloride ND 0.50 1 c-1,2-Dichloroethene ND 1.0 1 p/m-Xylene ND 1.0 1 t-1,2-Dichloroethene ND 1.0 1 o-Xylene ND 1.0 1 1,2-Dichloropropane ND 1.0 1 Methyl-t-Butyl Ether (MTBE) ND 1.0 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits 1,4-Bromofluorobenzene 99 80-120 Dibromofluoromethane 101 80-126 1,2-Dichloroethane-d4 110 80-134 Toluene-d8 101 80-120

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Parameter Result RL DF Qual Parameter Result RL DF Qual Acetone ND 20 1 1,3-Dichloropropane ND 1.0 1 Benzene ND 0.50 1 2,2-Dichloropropane ND 1.0 1 Bromobenzene ND 1.0 1 1,1-Dichloropropene ND 1.0 1 Bromochloromethane ND 1.0 1 c-1,3-Dichloropropene ND 0.50 1 Bromodichloromethane ND 1.0 1 t-1,3-Dichloropropene ND 0.50 1 Bromoform ND 1.0 1 Ethylbenzene ND 1.0 1 Bromomethane ND 10 1 2-Hexanone ND 10 1 2-Butanone ND 10 1 Isopropylbenzene ND 1.0 1 n-Butylbenzene ND 1.0 1 p-Isopropyltoluene ND 1.0 1 sec-Butylbenzene ND 1.0 1 Methylene Chloride ND 10 1 tert-Butylbenzene ND 1.0 1 4-Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND 0.50 1 n-Propylbenzene ND 1.0 1 Chlorobenzene ND 1.0 1 Styrene ND 1.0 1 Chloroethane ND 5.0 1 1,1,1,2-Tetrachloroethane ND 1.0 1 Chloroform ND 1.0 1 1,1,2,2-Tetrachloroethane ND 1.0 1 Chloromethane ND 10 1 Tetrachloroethene ND 1.0 1 2-Chlorotoluene ND 1.0 1 Toluene ND 1.0 1 4-Chlorotoluene ND 1.0 1 1,2,3-Trichlorobenzene ND 1.0 1 Dibromochloromethane ND 1.0 1 1,2,4-Trichlorobenzene ND 1.0 1 1,2-Dibromo-3-Chloropropane ND 5.0 1 1,1,1-Trichloroethane ND 1.0 1 1,2-Dibromoethane ND 1.0 1 1,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Return to Contents Dibromomethane ND 1.0 1 1,1,2-Trichloroethane ND 1.0 1 1,2-Dichlorobenzene ND 1.0 1 Trichloroethene ND 1.0 1 1,3-Dichlorobenzene ND 1.0 1 Trichlorofluoromethane ND 10 1 1,4-Dichlorobenzene ND 1.0 1 1,2,3-Trichloropropane ND 5.0 1 Dichlorodifluoromethane ND 1.0 1 1,2,4-Trimethylbenzene ND 1.0 1 1,1-Dichloroethane ND 1.0 1 1,3,5-Trimethylbenzene ND 1.0 1 1,2-Dichloroethane ND 0.50 1 Vinyl Acetate ND 10 1 1,1-Dichloroethene ND 1.0 1 Vinyl Chloride ND 0.50 1 c-1,2-Dichloroethene ND 1.0 1 p/m-Xylene ND 1.0 1 t-1,2-Dichloroethene ND 1.0 1 o-Xylene ND 1.0 1 1,2-Dichloropropane ND 1.0 1 Methyl-t-Butyl Ether (MTBE) ND 1.0 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits 1,4-Bromofluorobenzene 101 80-120 Dibromofluoromethane 100 80-126 1,2-Dichloroethane-d4 110 80-134 Toluene-d8 101 80-120

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Parameter Result RL DF Qual Parameter Result RL DF Qual Acetone ND 20 1 1,3-Dichloropropane ND 1.0 1 Benzene ND 0.50 1 2,2-Dichloropropane ND 1.0 1 Bromobenzene ND 1.0 1 1,1-Dichloropropene ND 1.0 1 Bromochloromethane ND 1.0 1 c-1,3-Dichloropropene ND 0.50 1 Bromodichloromethane ND 1.0 1 t-1,3-Dichloropropene ND 0.50 1 Bromoform ND 1.0 1 Ethylbenzene ND 1.0 1 Bromomethane ND 10 1 2-Hexanone ND 10 1 2-Butanone ND 10 1 Isopropylbenzene ND 1.0 1 n-Butylbenzene ND 1.0 1 p-Isopropyltoluene ND 1.0 1 sec-Butylbenzene ND 1.0 1 Methylene Chloride ND 10 1 tert-Butylbenzene ND 1.0 1 4-Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND 0.50 1 n-Propylbenzene ND 1.0 1 Chlorobenzene ND 1.0 1 Styrene ND 1.0 1 Chloroethane ND 5.0 1 1,1,1,2-Tetrachloroethane ND 1.0 1 Chloroform ND 1.0 1 1,1,2,2-Tetrachloroethane ND 1.0 1 Chloromethane ND 10 1 Tetrachloroethene ND 1.0 1 2-Chlorotoluene ND 1.0 1 Toluene ND 1.0 1 4-Chlorotoluene ND 1.0 1 1,2,3-Trichlorobenzene ND 1.0 1 Dibromochloromethane ND 1.0 1 1,2,4-Trichlorobenzene ND 1.0 1 1,2-Dibromo-3-Chloropropane ND 5.0 1 1,1,1-Trichloroethane ND 1.0 1 1,2-Dibromoethane ND 1.0 1 1,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Return to Contents Dibromomethane ND 1.0 1 1,1,2-Trichloroethane ND 1.0 1 1,2-Dichlorobenzene ND 1.0 1 Trichloroethene ND 1.0 1 1,3-Dichlorobenzene ND 1.0 1 Trichlorofluoromethane ND 10 1 1,4-Dichlorobenzene ND 1.0 1 1,2,3-Trichloropropane ND 5.0 1 Dichlorodifluoromethane ND 1.0 1 1,2,4-Trimethylbenzene ND 1.0 1 1,1-Dichloroethane ND 1.0 1 1,3,5-Trimethylbenzene ND 1.0 1 1,2-Dichloroethane ND 0.50 1 Vinyl Acetate ND 10 1 1,1-Dichloroethene ND 1.0 1 Vinyl Chloride ND 0.50 1 c-1,2-Dichloroethene ND 1.0 1 p/m-Xylene ND 1.0 1 t-1,2-Dichloroethene ND 1.0 1 o-Xylene ND 1.0 1 1,2-Dichloropropane ND 1.0 1 Methyl-t-Butyl Ether (MTBE) ND 1.0 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits 1,4-Bromofluorobenzene 102 80-120 Dibromofluoromethane 102 80-126 1,2-Dichloroethane-d4 107 80-134 Toluene-d8 101 80-120

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Comment(s): -Preparation/analysis for Mercury was performed by EPA 7470A. Parameter Result RL DF Qual Mercury ND 0.000500 1

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/13/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537

Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 1 of 1

Lab Sample Number Date Client Sample Number Collected Matrix SP-RW-011212 12-01-0763-1 01/12/12 Aqueous

Parameter Results RL DF Qual Units Date Date Method Prepared Analyzed Solids, Total Suspended 242 1.00 1 mg/L 01/16/12 01/16/12 SM 2540 D Method Blank N/A Aqueous

Parameter Results RL DF Qual Units Date Date Method Prepared Analyzed Solids, Total Suspended ND 1.0 1 mg/L 01/16/12 01/16/12 SM 2540 D Return to Contents

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Quality Control - Spike/Spike Duplicate

Arcadis US, Inc. Date Received: 01/13/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 3005A Filt. Method: EPA 6010B

Project Shell Ponds / Bay Point, CA / B0092353.0003

Date Date MS/MSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 12-01-0630-4 Aqueous ICP 5300 01/13/12 01/13/12 120113SA1

Parameter SPIKE ADDED MS %REC MSD %REC %REC CL RPD RPD CL Qualifiers

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - PDS / PDSD

Arcadis US, Inc. Date Received 01/13/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 3005A Filt. Method: EPA 6010B

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date Analyzed PDS / PDSD Batch Quality Control Sample ID Matrix Instrument Prepared Number

12-01-0630-4 Aqueous ICP 5300 01/13/12 01/13/12 120113SA1

Parameter SPIKE ADDED PDS %REC PDSD %REC %REC CL RPD RPD CL Qualifiers

Zinc 0.5000 103 102 75-125 1 0-8 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - Spike/Spike Duplicate

Arcadis US, Inc. Date Received: 01/13/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 7470A Filt. Method: EPA 7470A

Project Shell Ponds / Bay Point, CA / B0092353.0003

Date Date MS/MSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 12-01-0706-2 Aqueous Mercury 01/13/12 01/13/12 120113S01

Parameter SPIKE ADDED MS %REC MSD %REC %REC CL RPD RPD CL Qualifiers

Mercury 0.01000 100 102 66-126 2 0-7 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - Spike/Spike Duplicate

Arcadis US, Inc. Date Received: 01/13/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 5030C Method: EPA 8260B

Project Shell Ponds / Bay Point, CA / B0092353.0003

Date Date MS/MSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 12-01-0796-1 Aqueous GC/MS CC 01/14/12 01/14/12 120114S01

Parameter SPIKE ADDED MS %REC MSD %REC %REC CL RPD RPD CL Qualifiers

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - Spike/Spike Duplicate

Arcadis US, Inc. Date Received: 01/13/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 5030C Method: EPA 8260B

Project Shell Ponds / Bay Point, CA / B0092353.0003

Date Date MS/MSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 12-01-0800-5 Aqueous GC/MS CC 01/17/12 01/17/12 120117S01

Parameter SPIKE ADDED MS %REC MSD %REC %REC CL RPD RPD CL Qualifiers

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Matrix: Aqueous or Solid

Parameter Method QC Sample ID Date Analyzed Sample Conc DUP Conc RPD RPD CL Qualifiers

Solids, Total Suspended SM 2540 D 12-01-0712-5 01/16/12 7130 7130 0 0-10 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 3010A Total Method: EPA 6010B

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number

097-01-003-12,288 Aqueous ICP 5300 01/13/12 01/13/12 120113LA1

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8015B (M)

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 099-14-065-135 Aqueous GC 45 01/15/12 01/15/12 120115B04A

Parameter SPIKE ADDED LCS %REC LCSD %REC %REC CL RPD RPD CL Qualifiers

TPH as Diesel 2000 77 82 75-117 7 0-13 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 7470A Total Method: EPA 7470A

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 099-04-008-5,783 Aqueous Mercury 01/13/12 01/13/12 120113L01

Parameter SPIKE ADDED LCS %REC LCSD %REC %REC CL RPD RPD CL Qualifiers

Mercury 0.01000 99 98 85-121 1 0-10 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8270C SIM PAHs

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number

099-06-008-425 Aqueous GC/MS AAA 01/16/12 01/19/12 120116L02

Dibenz (a,h) Anthracene 2.000 114 110 25-175 0-200 4 0-25 Return to Contents Benzo (g,h,i) Perylene 2.000 114 109 25-157 3-179 4 0-25

Total number of LCS compounds : 18 Total number of ME compounds : 0 Total number of ME compounds allowed : 1 LCS ME CL validation result : Pass

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 5030C Method: EPA 8260B

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number

099-14-001-6,805 Aqueous GC/MS CC 01/14/12 01/14/12 120114L01

Total number of LCS compounds : 12 Total number of ME compounds : 0 Total number of ME compounds allowed : 1 LCS ME CL validation result : Pass Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0763 Walnut Creek, CA 94597-2537 Preparation: EPA 5030C Method: EPA 8260B

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number

099-14-001-6,829 Aqueous GC/MS CC 01/17/12 01/17/12 120117L01

Total number of LCS compounds : 12 Total number of ME compounds : 0 Total number of ME compounds allowed : 1 LCS ME CL validation result : Pass Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Glossary of Terms and Qualifiers

Work Order Number: 12-01-0763

Solid - Unless otherwise indicated, solid sample data is reported on a wet weight basis, not corrected for % moisture. All QC results are reported on a wet weight basis. MPN - Most Probable Number

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Return to Contents Page 25of

Return to Contents Page 1 of 25

WORK ORDER NUMBER: 12-01-0666

Analytical Report For Client: Arcadis US, Inc. Client Project Name: Shell Ponds / Bay Point, CA / B0092353.0003 Attention: Josh Gravenmier 2999 Oak Road, Suite 300 Walnut Creek, CA 94597-2537

01/19/2012 Ranjit Clarke Project Manager Page 2 of 25

Contents Client Project Name: Shell Ponds / Bay Point, CA / B0092353.0003 Work Order Number: 12-01-0666

2 Quality Control Sample Data ...... 11 2.1 MS/MSD and/or Duplicate ...... 11 2.2 LCS/LCSD ...... 17

3 Glossary of Terms and Qualifiers ...... 23

4 Chain of Custody/Sample Receipt Form ...... 24 Page 3 of 25

Analytical Report

Arcadis US, Inc. Date Received: 01/12/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0666 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8015B (M) Units: ug/L Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 1 of 1

Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID SP-RW-011112 12-01-0666-1-E 01/11/12 Aqueous GC 45 01/15/12 01/16/12 120115B04A 14:30 04:05

Comment(s): -The total concentration includes individual carbon range concentrations (estimated), if any, below the RL reported as ND. Parameter Result RL DF Qual Parameter Result RL DF Qual C6 ND 250 5 C21-C22 ND 250 5 C7 ND 250 5 C23-C24 ND 250 5 C8 ND 250 5 C25-C28 ND 250 5 C9-C10 ND 250 5 C29-C32 ND 250 5 C11-C12 430 250 5 C33-C36 ND 250 5 C13-C14 580 250 5 C37-C40 ND 250 5 C15-C16 650 250 5 C41-C44 ND 250 5 C17-C18 640 250 5 C6-C44 Total 3600 250 5 C19-C20 380 250 5 Surrogates: REC (%) Control Qual Limits Decachlorobiphenyl 79 68-140 Method Blank 099-14-065-135 N/A Aqueous GC 45 01/15/12 01/15/12 120115B04A 23:14

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/12/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0666 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8270C SIM PAHs Units: ug/L Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 1 of 1

Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID SP-RW-011112 12-01-0666-1-J 01/11/12 Aqueous GC/MS AAA 01/12/12 01/18/12 120112L08 14:30 17:08

Parameter Result RL DF Qual Parameter Result RL DF Qual Naphthalene ND 0.20 1 Pyrene 4.0 0.20 1 2-Methylnaphthalene 0.35 0.20 1 Benzo (a) Anthracene ND 0.20 1 1-Methylnaphthalene 4.9 0.20 1 Chrysene ND 0.20 1 Acenaphthylene 0.28 0.20 1 Benzo (k) Fluoranthene ND 0.20 1 Acenaphthene 0.39 0.20 1 Benzo (b) Fluoranthene ND 0.20 1 Fluorene ND 0.20 1 Benzo (a) Pyrene ND 0.20 1 Phenanthrene 0.61 0.20 1 Indeno (1,2,3-c,d) Pyrene 0.23 0.20 1 Anthracene ND 0.20 1 Dibenz (a,h) Anthracene ND 0.20 1 Fluoranthene 1.1 0.20 1 Benzo (g,h,i) Perylene 2.1 0.20 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits Nitrobenzene-d5 71 28-139 2-Fluorobiphenyl 59 33-144 p-Terphenyl-d14 56 23-160 Method Blank 099-06-008-424 N/A Aqueous GC/MS AAA 01/12/12 01/18/12 120112L08 12:19

Parameter Result RL DF Qual Parameter Result RL DF Qual Naphthalene ND 0.20 1 Pyrene ND 0.20 1 2-Methylnaphthalene ND 0.20 1 Benzo (a) Anthracene ND 0.20 1 1-Methylnaphthalene ND 0.20 1 Chrysene ND 0.20 1 Acenaphthylene ND 0.20 1 Benzo (k) Fluoranthene ND 0.20 1 Return to Contents Acenaphthene ND 0.20 1 Benzo (b) Fluoranthene ND 0.20 1 Fluorene ND 0.20 1 Benzo (a) Pyrene ND 0.20 1 Phenanthrene ND 0.20 1 Indeno (1,2,3-c,d) Pyrene ND 0.20 1 Anthracene ND 0.20 1 Dibenz (a,h) Anthracene ND 0.20 1 Fluoranthene ND 0.20 1 Benzo (g,h,i) Perylene ND 0.20 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits Nitrobenzene-d5 108 28-139 2-Fluorobiphenyl 84 33-144 p-Terphenyl-d14 90 23-160

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/12/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0666 Walnut Creek, CA 94597-2537 Preparation: EPA 5030C Method: EPA 8260B Units: ug/L Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 1 of 4

Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID SP-RW-011112 12-01-0666-1-B 01/11/12 Aqueous GC/MS Z 01/13/12 01/13/12 120113L01 14:30 16:19

Parameter Result RL DF Qual Parameter Result RL DF Qual Acetone 33 20 1 1,3-Dichloropropane ND 1.0 1 Benzene ND 0.50 1 2,2-Dichloropropane ND 1.0 1 Bromobenzene ND 1.0 1 1,1-Dichloropropene ND 1.0 1 Bromochloromethane ND 1.0 1 c-1,3-Dichloropropene ND 0.50 1 Bromodichloromethane ND 1.0 1 t-1,3-Dichloropropene ND 0.50 1 Bromoform ND 1.0 1 Ethylbenzene ND 1.0 1 Bromomethane ND 10 1 2-Hexanone ND 10 1 2-Butanone ND 10 1 Isopropylbenzene ND 1.0 1 n-Butylbenzene 1.7 1.0 1 p-Isopropyltoluene ND 1.0 1 sec-Butylbenzene ND 1.0 1 Methylene Chloride ND 10 1 tert-Butylbenzene ND 1.0 1 4-Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND 0.50 1 n-Propylbenzene 1.2 1.0 1 Chlorobenzene ND 1.0 1 Styrene ND 1.0 1 Chloroethane ND 5.0 1 1,1,1,2-Tetrachloroethane ND 1.0 1 Chloroform ND 1.0 1 1,1,2,2-Tetrachloroethane ND 1.0 1 Chloromethane ND 10 1 Tetrachloroethene ND 1.0 1 2-Chlorotoluene ND 1.0 1 Toluene ND 1.0 1 4-Chlorotoluene ND 1.0 1 1,2,3-Trichlorobenzene ND 1.0 1 Dibromochloromethane ND 1.0 1 1,2,4-Trichlorobenzene ND 1.0 1 1,2-Dibromo-3-Chloropropane ND 5.0 1 1,1,1-Trichloroethane ND 1.0 1 1,2-Dibromoethane ND 1.0 1 1,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Return to Contents Dibromomethane ND 1.0 1 1,1,2-Trichloroethane ND 1.0 1 1,2-Dichlorobenzene ND 1.0 1 Trichloroethene ND 1.0 1 1,3-Dichlorobenzene ND 1.0 1 Trichlorofluoromethane ND 10 1 1,4-Dichlorobenzene ND 1.0 1 1,2,3-Trichloropropane ND 5.0 1 Dichlorodifluoromethane ND 1.0 1 1,2,4-Trimethylbenzene 1.6 1.0 1 1,1-Dichloroethane ND 1.0 1 1,3,5-Trimethylbenzene ND 1.0 1 1,2-Dichloroethane ND 0.50 1 Vinyl Acetate ND 10 1 1,1-Dichloroethene ND 1.0 1 Vinyl Chloride ND 0.50 1 c-1,2-Dichloroethene ND 1.0 1 p/m-Xylene ND 1.0 1 t-1,2-Dichloroethene ND 1.0 1 o-Xylene ND 1.0 1 1,2-Dichloropropane ND 1.0 1 Methyl-t-Butyl Ether (MTBE) ND 1.0 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits 1,4-Bromofluorobenzene 109 80-120 Dibromofluoromethane 113 80-126 1,2-Dichloroethane-d4 128 80-134 Toluene-d8 102 80-120

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID SP-TP3-011112 12-01-0666-2-A 01/11/12 Aqueous GC/MS Z 01/12/12 01/12/12 120112L01 00:00 20:36

Parameter Result RL DF Qual Parameter Result RL DF Qual Acetone ND 20 1 1,3-Dichloropropane ND 1.0 1 Benzene ND 0.50 1 2,2-Dichloropropane ND 1.0 1 Bromobenzene ND 1.0 1 1,1-Dichloropropene ND 1.0 1 Bromochloromethane ND 1.0 1 c-1,3-Dichloropropene ND 0.50 1 Bromodichloromethane ND 1.0 1 t-1,3-Dichloropropene ND 0.50 1 Bromoform ND 1.0 1 Ethylbenzene ND 1.0 1 Bromomethane ND 10 1 2-Hexanone ND 10 1 2-Butanone ND 10 1 Isopropylbenzene ND 1.0 1 n-Butylbenzene ND 1.0 1 p-Isopropyltoluene ND 1.0 1 sec-Butylbenzene ND 1.0 1 Methylene Chloride ND 10 1 tert-Butylbenzene ND 1.0 1 4-Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND 0.50 1 n-Propylbenzene ND 1.0 1 Chlorobenzene ND 1.0 1 Styrene ND 1.0 1 Chloroethane ND 5.0 1 1,1,1,2-Tetrachloroethane ND 1.0 1 Chloroform ND 1.0 1 1,1,2,2-Tetrachloroethane ND 1.0 1 Chloromethane ND 10 1 Tetrachloroethene ND 1.0 1 2-Chlorotoluene ND 1.0 1 Toluene ND 1.0 1 4-Chlorotoluene ND 1.0 1 1,2,3-Trichlorobenzene ND 1.0 1 Dibromochloromethane ND 1.0 1 1,2,4-Trichlorobenzene ND 1.0 1 1,2-Dibromo-3-Chloropropane ND 5.0 1 1,1,1-Trichloroethane ND 1.0 1 1,2-Dibromoethane ND 1.0 1 1,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Return to Contents Dibromomethane ND 1.0 1 1,1,2-Trichloroethane ND 1.0 1 1,2-Dichlorobenzene ND 1.0 1 Trichloroethene ND 1.0 1 1,3-Dichlorobenzene ND 1.0 1 Trichlorofluoromethane ND 10 1 1,4-Dichlorobenzene ND 1.0 1 1,2,3-Trichloropropane ND 5.0 1 Dichlorodifluoromethane ND 1.0 1 1,2,4-Trimethylbenzene ND 1.0 1 1,1-Dichloroethane ND 1.0 1 1,3,5-Trimethylbenzene ND 1.0 1 1,2-Dichloroethane ND 0.50 1 Vinyl Acetate ND 10 1 1,1-Dichloroethene ND 1.0 1 Vinyl Chloride ND 0.50 1 c-1,2-Dichloroethene ND 1.0 1 p/m-Xylene ND 1.0 1 t-1,2-Dichloroethene ND 1.0 1 o-Xylene ND 1.0 1 1,2-Dichloropropane ND 1.0 1 Methyl-t-Butyl Ether (MTBE) ND 1.0 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits 1,4-Bromofluorobenzene 104 80-120 Dibromofluoromethane 111 80-126 1,2-Dichloroethane-d4 123 80-134 Toluene-d8 101 80-120

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID Method Blank 099-14-001-6,777 N/A Aqueous GC/MS Z 01/12/12 01/12/12 120112L01 13:53

Parameter Result RL DF Qual Parameter Result RL DF Qual Acetone ND 20 1 1,3-Dichloropropane ND 1.0 1 Benzene ND 0.50 1 2,2-Dichloropropane ND 1.0 1 Bromobenzene ND 1.0 1 1,1-Dichloropropene ND 1.0 1 Bromochloromethane ND 1.0 1 c-1,3-Dichloropropene ND 0.50 1 Bromodichloromethane ND 1.0 1 t-1,3-Dichloropropene ND 0.50 1 Bromoform ND 1.0 1 Ethylbenzene ND 1.0 1 Bromomethane ND 10 1 2-Hexanone ND 10 1 2-Butanone ND 10 1 Isopropylbenzene ND 1.0 1 n-Butylbenzene ND 1.0 1 p-Isopropyltoluene ND 1.0 1 sec-Butylbenzene ND 1.0 1 Methylene Chloride ND 10 1 tert-Butylbenzene ND 1.0 1 4-Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND 0.50 1 n-Propylbenzene ND 1.0 1 Chlorobenzene ND 1.0 1 Styrene ND 1.0 1 Chloroethane ND 5.0 1 1,1,1,2-Tetrachloroethane ND 1.0 1 Chloroform ND 1.0 1 1,1,2,2-Tetrachloroethane ND 1.0 1 Chloromethane ND 10 1 Tetrachloroethene ND 1.0 1 2-Chlorotoluene ND 1.0 1 Toluene ND 1.0 1 4-Chlorotoluene ND 1.0 1 1,2,3-Trichlorobenzene ND 1.0 1 Dibromochloromethane ND 1.0 1 1,2,4-Trichlorobenzene ND 1.0 1 1,2-Dibromo-3-Chloropropane ND 5.0 1 1,1,1-Trichloroethane ND 1.0 1 1,2-Dibromoethane ND 1.0 1 1,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Return to Contents Dibromomethane ND 1.0 1 1,1,2-Trichloroethane ND 1.0 1 1,2-Dichlorobenzene ND 1.0 1 Trichloroethene ND 1.0 1 1,3-Dichlorobenzene ND 1.0 1 Trichlorofluoromethane ND 10 1 1,4-Dichlorobenzene ND 1.0 1 1,2,3-Trichloropropane ND 5.0 1 Dichlorodifluoromethane ND 1.0 1 1,2,4-Trimethylbenzene ND 1.0 1 1,1-Dichloroethane ND 1.0 1 1,3,5-Trimethylbenzene ND 1.0 1 1,2-Dichloroethane ND 0.50 1 Vinyl Acetate ND 10 1 1,1-Dichloroethene ND 1.0 1 Vinyl Chloride ND 0.50 1 c-1,2-Dichloroethene ND 1.0 1 p/m-Xylene ND 1.0 1 t-1,2-Dichloroethene ND 1.0 1 o-Xylene ND 1.0 1 1,2-Dichloropropane ND 1.0 1 Methyl-t-Butyl Ether (MTBE) ND 1.0 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits 1,4-Bromofluorobenzene 103 80-120 Dibromofluoromethane 110 80-126 1,2-Dichloroethane-d4 120 80-134 Toluene-d8 102 80-120

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID Method Blank 099-14-001-6,795 N/A Aqueous GC/MS Z 01/13/12 01/13/12 120113L01 13:55

Parameter Result RL DF Qual Parameter Result RL DF Qual Acetone ND 20 1 1,3-Dichloropropane ND 1.0 1 Benzene ND 0.50 1 2,2-Dichloropropane ND 1.0 1 Bromobenzene ND 1.0 1 1,1-Dichloropropene ND 1.0 1 Bromochloromethane ND 1.0 1 c-1,3-Dichloropropene ND 0.50 1 Bromodichloromethane ND 1.0 1 t-1,3-Dichloropropene ND 0.50 1 Bromoform ND 1.0 1 Ethylbenzene ND 1.0 1 Bromomethane ND 10 1 2-Hexanone ND 10 1 2-Butanone ND 10 1 Isopropylbenzene ND 1.0 1 n-Butylbenzene ND 1.0 1 p-Isopropyltoluene ND 1.0 1 sec-Butylbenzene ND 1.0 1 Methylene Chloride ND 10 1 tert-Butylbenzene ND 1.0 1 4-Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND 0.50 1 n-Propylbenzene ND 1.0 1 Chlorobenzene ND 1.0 1 Styrene ND 1.0 1 Chloroethane ND 5.0 1 1,1,1,2-Tetrachloroethane ND 1.0 1 Chloroform ND 1.0 1 1,1,2,2-Tetrachloroethane ND 1.0 1 Chloromethane ND 10 1 Tetrachloroethene ND 1.0 1 2-Chlorotoluene ND 1.0 1 Toluene ND 1.0 1 4-Chlorotoluene ND 1.0 1 1,2,3-Trichlorobenzene ND 1.0 1 Dibromochloromethane ND 1.0 1 1,2,4-Trichlorobenzene ND 1.0 1 1,2-Dibromo-3-Chloropropane ND 5.0 1 1,1,1-Trichloroethane ND 1.0 1 1,2-Dibromoethane ND 1.0 1 1,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Return to Contents Dibromomethane ND 1.0 1 1,1,2-Trichloroethane ND 1.0 1 1,2-Dichlorobenzene ND 1.0 1 Trichloroethene ND 1.0 1 1,3-Dichlorobenzene ND 1.0 1 Trichlorofluoromethane ND 10 1 1,4-Dichlorobenzene ND 1.0 1 1,2,3-Trichloropropane ND 5.0 1 Dichlorodifluoromethane ND 1.0 1 1,2,4-Trimethylbenzene ND 1.0 1 1,1-Dichloroethane ND 1.0 1 1,3,5-Trimethylbenzene ND 1.0 1 1,2-Dichloroethane ND 0.50 1 Vinyl Acetate ND 10 1 1,1-Dichloroethene ND 1.0 1 Vinyl Chloride ND 0.50 1 c-1,2-Dichloroethene ND 1.0 1 p/m-Xylene ND 1.0 1 t-1,2-Dichloroethene ND 1.0 1 o-Xylene ND 1.0 1 1,2-Dichloropropane ND 1.0 1 Methyl-t-Butyl Ether (MTBE) ND 1.0 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits 1,4-Bromofluorobenzene 103 80-120 Dibromofluoromethane 107 80-126 1,2-Dichloroethane-d4 119 80-134 Toluene-d8 103 80-120

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/12/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0666 Walnut Creek, CA 94597-2537 Preparation: EPA 3010A Total / EPA 7470A Total Method: EPA 6010B / EPA 7470A Units: mg/L Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 1 of 1 Lab Sample Date /Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID SP-RW-011112 12-01-0666-1-D 01/11/12 Aqueous ICP 5300 01/13/12 01/13/12 120113LA1 14:30 12:57

Comment(s): -Mercury analysis was performed on 01/13/12 12:48 with batch 120112L03. Parameter Result RL DF Qual Parameter Result RL DF Qual Antimony ND 0.0150 1 Molybdenum 0.0520 0.0100 1 Arsenic ND 0.0100 1 Nickel 0.0111 0.0100 1 Barium 0.0718 0.0100 1 Selenium ND 0.0150 1 Beryllium ND 0.0100 1 Silver ND 0.00500 1 Cadmium ND 0.0100 1 Thallium ND 0.0150 1 Chromium 0.0105 0.0100 1 Vanadium ND 0.0100 1 Cobalt ND 0.0100 1 Mercury ND 0.000500 1 Copper ND 0.0100 1 Zinc 0.0851 0.0100 1 Lead ND 0.0100 1 Method Blank 099-04-008-5,781 N/A Aqueous Mercury 01/12/12 01/12/12 120112L03 17:33

Comment(s): -Preparation/analysis for Mercury was performed by EPA 7470A. Parameter Result RL DF Qual Mercury ND 0.000500 1

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/12/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0666 Walnut Creek, CA 94597-2537

Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 1 of 1

Lab Sample Number Date Client Sample Number Collected Matrix SP-RW-011112 12-01-0666-1 01/11/12 Aqueous

Parameter Results RL DF Qual Units Date Date Method Prepared Analyzed Solids, Total Suspended 110 1.00 1 mg/L 01/13/12 01/13/12 SM 2540 D Method Blank N/A Aqueous

Parameter Results RL DF Qual Units Date Date Method Prepared Analyzed Solids, Total Suspended ND 1.0 1 mg/L 01/13/12 01/13/12 SM 2540 D Return to Contents

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Quality Control - Spike/Spike Duplicate

Arcadis US, Inc. Date Received: 01/12/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0666 Walnut Creek, CA 94597-2537 Preparation: EPA 3005A Filt. Method: EPA 6010B

Project Shell Ponds / Bay Point, CA / B0092353.0003

Date Date MS/MSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 12-01-0630-4 Aqueous ICP 5300 01/13/12 01/13/12 120113SA1

Parameter SPIKE ADDED MS %REC MSD %REC %REC CL RPD RPD CL Qualifiers

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - PDS / PDSD

Arcadis US, Inc. Date Received 01/12/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0666 Walnut Creek, CA 94597-2537 Preparation: EPA 3005A Filt. Method: EPA 6010B

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date Analyzed PDS / PDSD Batch Quality Control Sample ID Matrix Instrument Prepared Number

12-01-0630-4 Aqueous ICP 5300 01/13/12 01/13/12 120113SA1

Parameter SPIKE ADDED PDS %REC PDSD %REC %REC CL RPD RPD CL Qualifiers

Zinc 0.5000 103 102 75-125 1 0-8 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - Spike/Spike Duplicate

Arcadis US, Inc. Date Received: 01/12/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0666 Walnut Creek, CA 94597-2537 Preparation: EPA 7470A Filt. Method: EPA 7470A

Project Shell Ponds / Bay Point, CA / B0092353.0003

Date Date MS/MSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 12-01-0630-3 Aqueous Mercury 01/12/12 01/12/12 120112S03

Parameter SPIKE ADDED MS %REC MSD %REC %REC CL RPD RPD CL Qualifiers

Mercury 0.01000 90 87 57-141 3 0-10 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - Spike/Spike Duplicate

Arcadis US, Inc. Date Received: 01/12/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0666 Walnut Creek, CA 94597-2537 Preparation: EPA 5030C Method: EPA 8260B

Project Shell Ponds / Bay Point, CA / B0092353.0003

Date Date MS/MSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 12-01-0528-2 Aqueous GC/MS Z 01/12/12 01/12/12 120112S01

Parameter SPIKE ADDED MS %REC MSD %REC %REC CL RPD RPD CL Qualifiers

Benzene 50.00 105 103 78-120 2 0-20 Carbon Tetrachloride 50.00 136 132 67-139 3 0-20 Chlorobenzene 50.00 100 100 80-120 0 0-20 1,2-Dibromoethane 50.00 104 100 80-123 4 0-20 1,2-Dichlorobenzene 50.00 100 97 76-120 3 0-20 1,2-Dichloroethane 50.00 136 130 76-130 4 0-20 3 1,1-Dichloroethene 50.00 119 116 70-130 2 0-27 Ethylbenzene 50.00 105 104 73-127 1 0-20 Toluene 50.00 105 103 72-126 2 0-20 Trichloroethene 50.00 112 111 74-122 1 0-20 Vinyl Chloride 50.00 117 117 65-131 0 0-24 Methyl-t-Butyl Ether (MTBE) 50.00 114 112 69-123 2 0-20 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - Spike/Spike Duplicate

Arcadis US, Inc. Date Received: 01/12/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0666 Walnut Creek, CA 94597-2537 Preparation: EPA 5030C Method: EPA 8260B

Project Shell Ponds / Bay Point, CA / B0092353.0003

Date Date MS/MSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 12-01-0646-2 Aqueous GC/MS Z 01/13/12 01/13/12 120113S01

Parameter SPIKE ADDED MS %REC MSD %REC %REC CL RPD RPD CL Qualifiers

Benzene 50.00 107 104 78-120 3 0-20 Carbon Tetrachloride 50.00 145 138 67-139 4 0-20 3 Chlorobenzene 50.00 103 100 80-120 3 0-20 1,2-Dibromoethane 50.00 103 103 80-123 0 0-20 1,2-Dichlorobenzene 50.00 101 101 76-120 0 0-20 1,2-Dichloroethane 50.00 135 135 76-130 0 0-20 3 1,1-Dichloroethene 50.00 124 120 70-130 3 0-27 Ethylbenzene 50.00 110 106 73-127 4 0-20 Toluene 50.00 108 105 72-126 3 0-20 Trichloroethene 50.00 117 113 74-122 3 0-20 Vinyl Chloride 50.00 123 123 65-131 1 0-24 Methyl-t-Butyl Ether (MTBE) 50.00 114 116 69-123 1 0-20 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0666 Walnut Creek, CA 94597-2537

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Matrix: Aqueous or Solid

Parameter Method QC Sample ID Date Analyzed Sample Conc DUP Conc RPD RPD CL Qualifiers

Solids, Total Suspended SM 2540 D SP-RW-011112 01/13/12 110 102 8 0-10 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0666 Walnut Creek, CA 94597-2537 Preparation: EPA 3010A Total Method: EPA 6010B

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number

097-01-003-12,288 Aqueous ICP 5300 01/13/12 01/13/12 120113LA1

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0666 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8015B (M)

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 099-14-065-135 Aqueous GC 45 01/15/12 01/15/12 120115B04A

Parameter SPIKE ADDED LCS %REC LCSD %REC %REC CL RPD RPD CL Qualifiers

TPH as Diesel 2000 77 82 75-117 7 0-13 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0666 Walnut Creek, CA 94597-2537 Preparation: EPA 7470A Total Method: EPA 7470A

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 099-04-008-5,781 Aqueous Mercury 01/12/12 01/12/12 120112L03

Parameter SPIKE ADDED LCS %REC LCSD %REC %REC CL RPD RPD CL Qualifiers

Mercury 0.01000 99 98 85-121 1 0-10 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0666 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8270C SIM PAHs

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number

099-06-008-424 Aqueous GC/MS AAA 01/12/12 01/17/12 120112L08

Dibenz (a,h) Anthracene 2.000 119 114 25-175 0-200 4 0-25 Return to Contents Benzo (g,h,i) Perylene 2.000 113 110 25-157 3-179 3 0-25

Total number of LCS compounds : 18 Total number of ME compounds : 0 Total number of ME compounds allowed : 1 LCS ME CL validation result : Pass

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0666 Walnut Creek, CA 94597-2537 Preparation: EPA 5030C Method: EPA 8260B

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number

099-14-001-6,777 Aqueous GC/MS Z 01/12/12 01/12/12 120112L01

Parameter SPIKE ADDED LCS %REC LCSD %REC %REC CL ME_CL RPD RPD CL Qualifiers Benzene 50.00 103 103 80-120 73-127 0 0-20 Carbon Tetrachloride 50.00 133 132 66-138 54-150 1 0-20 Chlorobenzene 50.00 100 101 80-120 73-127 1 0-20 1,2-Dibromoethane 50.00 101 103 80-120 73-127 1 0-20 1,2-Dichlorobenzene 50.00 98 99 80-120 73-127 2 0-20 1,2-Dichloroethane 50.00 128 129 80-129 72-137 0 0-20 1,1-Dichloroethene 50.00 119 119 71-131 61-141 0 0-20 Ethylbenzene 50.00 103 106 80-123 73-130 2 0-20 Toluene 50.00 104 104 79-121 72-128 0 0-20 Trichloroethene 50.00 109 111 80-120 73-127 3 0-20 Vinyl Chloride 50.00 119 119 70-136 59-147 0 0-20 Methyl-t-Butyl Ether (MTBE) 50.00 115 114 72-126 63-135 1 0-22

Total number of LCS compounds : 12 Total number of ME compounds : 0 Total number of ME compounds allowed : 1 LCS ME CL validation result : Pass Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0666 Walnut Creek, CA 94597-2537 Preparation: EPA 5030C Method: EPA 8260B

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number

099-14-001-6,795 Aqueous GC/MS Z 01/13/12 01/13/12 120113L01

Parameter SPIKE ADDED LCS %REC LCSD %REC %REC CL ME_CL RPD RPD CL Qualifiers Benzene 50.00 101 101 80-120 73-127 0 0-20 Carbon Tetrachloride 50.00 132 134 66-138 54-150 2 0-20 Chlorobenzene 50.00 100 99 80-120 73-127 1 0-20 1,2-Dibromoethane 50.00 100 101 80-120 73-127 1 0-20 1,2-Dichlorobenzene 50.00 96 97 80-120 73-127 0 0-20 1,2-Dichloroethane 50.00 133 130 80-129 72-137 2 0-20 ME 1,1-Dichloroethene 50.00 116 119 71-131 61-141 3 0-20 Ethylbenzene 50.00 103 103 80-123 73-130 0 0-20 Toluene 50.00 101 101 79-121 72-128 1 0-20 Trichloroethene 50.00 109 108 80-120 73-127 1 0-20 Vinyl Chloride 50.00 123 121 70-136 59-147 1 0-20 Methyl-t-Butyl Ether (MTBE) 50.00 114 113 72-126 63-135 1 0-22

Total number of LCS compounds : 12 Total number of ME compounds : 1 Total number of ME compounds allowed : 1 LCS ME CL validation result : Pass Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Glossary of Terms and Qualifiers

Work Order Number: 12-01-0666

Solid - Unless otherwise indicated, solid sample data is reported on a wet weight basis, not corrected for % moisture. All QC results are reported on a wet weight basis. MPN - Most Probable Number

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Return to Contents Page 25of

Return to Contents Page 1 of 38

Supplemental Report 1

Additional requested analyses have been added to the original report.

WORK ORDER NUMBER: 12-01-0563

Analytical Report For Client: Arcadis US, Inc. Client Project Name: Shell Ponds / Bay Point, CA / B0092353.0003 Attention: Josh Gravenmier 2999 Oak Road, Suite 300 Walnut Creek, CA 94597-2537

01/25/2012 Ranjit Clarke Project Manager Page 2 of 38

Contents Client Project Name: Shell Ponds / Bay Point, CA / B0092353.0003 Work Order Number: 12-01-0563

1 Case Narrative - 12010563 ...... 3

2 Client Sample Data ...... 4 2.1 EPA 8015B (M) C6-C44 (Aqueous) ...... 4 2.2 EPA 8270C Semi-Volatile Organics (Aqueous) ...... 6 2.3 EPA 8270C SIM PAHs (Aqueous) ...... 9 2.4 EPA 8260B Volatile Organics (Aqueous) ...... 11 2.5 EPA 6010B/7470A CAC Title 22 Metals / EPA 7470A Mercury 17 2.6 Combined Inorganic Tests ...... 19

3 TICs (SVOCs) - 12010563 ...... 20

4 TICs (VOCs) - 12010563 ...... 21

5 Quality Control Sample Data ...... 22 5.1 MS/MSD and/or Duplicate ...... 22 5.2 LCS/LCSD ...... 28

6 Glossary of Terms and Qualifiers ...... 35

7 Chain of Custody/Sample Receipt Form ...... 36 Page 3 of 38

Work Order Case Narrative

Project Name: Shell Ponds / Bay Point, CA / B0092353.0003 Calscience Work Order Number: 12-01-0563

Additional Analyses:

An e-mail request was received on 01/24/12 requesting EPA 8270C SVOCs + TICs to be analyzed and EPA 8260B TICs to be reported for the following sample:

SP-RW2-011012

These additional analyses are reported along with all of the data submitted in the original report dated 01/18/12. Return to Contents Page 4 of 38

Analytical Report

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/11/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8270C Units: ug/L Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 1 of 3 Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID SP-RW2-011012 12-01-0563-2-F 01/10/12 Aqueous GC/MS SS 01/24/12 01/24/12 120124L03 11:15 19:11

Comment(s): -Results were evaluated to the MDL (DL), concentrations >= to the MDL (DL) but < RL (LOQ), if found, are qualified with a "J" flag. -Sample extracted outside recommended holding time. Parameter Result RL MDL DF Qual Parameter Result RL MDL DF Qual Acenaphthene ND 10 2.8 1 2,4-Dimethylphenol ND 10 2.4 1 Acenaphthylene ND 10 2.9 1 4,6-Dinitro-2-Methylphenol ND 50 14 1 Aniline ND 10 1.5 1 2,4-Dinitrophenol ND 50 13 1 Anthracene ND 10 3.0 1 2,4-Dinitrotoluene ND 10 2.3 1 Azobenzene ND 10 2.6 1 2,6-Dinitrotoluene ND 10 2.4 1 Benzidine ND 50 6.5 1 Fluoranthene ND 10 3.1 1 Benzo (a) Anthracene ND 10 4.7 1 Fluorene ND 10 2.7 1 Benzo (a) Pyrene ND 10 2.4 1 Hexachloro-1,3-Butadiene ND 10 2.9 1 Benzo (b) Fluoranthene ND 10 2.3 1 Hexachlorobenzene ND 10 3.1 1 Benzo (g,h,i) Perylene ND 10 2.5 1 Hexachlorocyclopentadiene ND 25 6.9 1 Benzo (k) Fluoranthene ND 10 3.2 1 Hexachloroethane ND 10 3.0 1 Benzoic Acid ND 50 12 1 Indeno (1,2,3-c,d) Pyrene ND 10 2.1 1 Benzyl Alcohol ND 10 2.2 1 Isophorone ND 10 2.5 1 Bis(2-Chloroethoxy) Methane ND 10 2.5 1 2-Methylnaphthalene ND 10 2.8 1 Bis(2-Chloroethyl) Ether ND 25 2.5 1 1-Methylnaphthalene 11 10 2.8 1 Bis(2-Chloroisopropyl) Ether ND 10 3.2 1 2-Methylphenol ND 10 2.1 1 Bis(2-Ethylhexyl) Phthalate ND 10 3.2 1 3/4-Methylphenol ND 10 2.2 1 4-Bromophenyl-Phenyl Ether ND 10 2.7 1 N-Nitroso-di-n-propylamine ND 10 2.4 1

Butyl Benzyl Phthalate ND 10 2.5 1 N-Nitrosodimethylamine ND 10 3.2 1 Return to Contents 4-Chloro-3-Methylphenol ND 10 2.4 1 N-Nitrosodiphenylamine ND 10 2.8 1 4-Chloroaniline ND 10 2.0 1 Naphthalene ND 10 2.9 1 2-Chloronaphthalene ND 10 2.8 1 4-Nitroaniline ND 10 2.1 1 2-Chlorophenol ND 10 2.3 1 3-Nitroaniline ND 10 2.3 1 4-Chlorophenyl-Phenyl Ether ND 10 2.7 1 2-Nitroaniline ND 10 2.2 1 Chrysene ND 10 2.8 1 Nitrobenzene ND 25 3.0 1 Di-n-Butyl Phthalate ND 10 2.9 1 4-Nitrophenol ND 10 1.6 1 Di-n-Octyl Phthalate ND 10 2.5 1 2-Nitrophenol ND 10 2.6 1 Dibenz (a,h) Anthracene ND 10 2.5 1 Pentachlorophenol ND 10 4.6 1 Dibenzofuran ND 10 2.8 1 Phenanthrene ND 10 2.9 1 1,2-Dichlorobenzene ND 10 3.0 1 Phenol ND 10 2.1 1 1,3-Dichlorobenzene ND 10 3.1 1 Pyrene 6.3 10 3.0 1 J 1,4-Dichlorobenzene ND 10 2.9 1 Pyridine ND 10 3.0 1 3,3'-Dichlorobenzidine ND 25 2.6 1 1,2,4-Trichlorobenzene ND 10 2.8 1 2,4-Dichlorophenol ND 10 2.5 1 2,4,6-Trichlorophenol ND 10 2.5 1 Diethyl Phthalate ND 10 2.8 1 2,4,5-Trichlorophenol ND 10 2.5 1 Dimethyl Phthalate ND 10 2.6 1

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/11/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8270C % Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 2 of 3 Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID SP-RW2-011012 12-01-0563-2-F 01/10/12 Aqueous GC/MS SS 01/24/12 01/24/12 120124L03 11:15 19:11

Comment(s): -Results were evaluated to the MDL (DL), concentrations >= to the MDL (DL) but < RL (LOQ), if found, are qualified with a "J" flag. -Sample extracted outside recommended holding time. Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits 2-Fluorobiphenyl 85 42-138 2-Fluorophenol 50 7-121 Nitrobenzene-d5 95 50-146 p-Terphenyl-d14 91 47-173 Phenol-d6 39 1-127 2,4,6-Tribromophenol 47 41-137 Return to Contents

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/11/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8270C Units: ug/L Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 3 of 3 Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID Method Blank 095-01-003-3,307 N/A Aqueous GC/MS SS 01/24/12 01/24/12 120124L03 17:54

Comment(s): -Results were evaluated to the MDL, concentrations >= to the MDL but < RL, if found, are qualified with a "J" flag. Parameter Result RL MDL DF Qual Parameter Result RL MDL DF Qual Acenaphthene ND 10 2.8 1 2,4-Dimethylphenol ND 10 2.4 1 Acenaphthylene ND 10 2.9 1 4,6-Dinitro-2-Methylphenol ND 50 14 1 Aniline ND 10 1.5 1 2,4-Dinitrophenol ND 50 13 1 Anthracene ND 10 3.0 1 2,4-Dinitrotoluene ND 10 2.3 1 Azobenzene ND 10 2.6 1 2,6-Dinitrotoluene ND 10 2.4 1 Benzidine ND 50 6.5 1 Fluoranthene ND 10 3.1 1 Benzo (a) Anthracene ND 10 4.7 1 Fluorene ND 10 2.7 1 Benzo (a) Pyrene ND 10 2.4 1 Hexachloro-1,3-Butadiene ND 10 2.9 1 Benzo (b) Fluoranthene ND 10 2.3 1 Hexachlorobenzene ND 10 3.1 1 Benzo (g,h,i) Perylene ND 10 2.5 1 Hexachlorocyclopentadiene ND 25 6.9 1 Benzo (k) Fluoranthene ND 10 3.2 1 Hexachloroethane ND 10 3.0 1 Benzoic Acid ND 50 12 1 Indeno (1,2,3-c,d) Pyrene ND 10 2.1 1 Benzyl Alcohol ND 10 2.2 1 Isophorone ND 10 2.5 1 Bis(2-Chloroethoxy) Methane ND 10 2.5 1 2-Methylnaphthalene ND 10 2.8 1 Bis(2-Chloroethyl) Ether ND 25 2.5 1 1-Methylnaphthalene ND 10 2.8 1 Bis(2-Chloroisopropyl) Ether ND 10 3.2 1 2-Methylphenol ND 10 2.1 1 Bis(2-Ethylhexyl) Phthalate ND 10 3.2 1 3/4-Methylphenol ND 10 2.2 1 4-Bromophenyl-Phenyl Ether ND 10 2.7 1 N-Nitroso-di-n-propylamine ND 10 2.4 1 Butyl Benzyl Phthalate ND 10 2.5 1 N-Nitrosodimethylamine ND 10 3.2 1 4-Chloro-3-Methylphenol ND 10 2.4 1 N-Nitrosodiphenylamine ND 10 2.8 1 Return to Contents 4-Chloroaniline ND 10 2.0 1 Naphthalene ND 10 2.9 1 2-Chloronaphthalene ND 10 2.8 1 4-Nitroaniline ND 10 2.1 1 2-Chlorophenol ND 10 2.3 1 3-Nitroaniline ND 10 2.3 1 4-Chlorophenyl-Phenyl Ether ND 10 2.7 1 2-Nitroaniline ND 10 2.2 1 Chrysene ND 10 2.8 1 Nitrobenzene ND 25 3.0 1 Di-n-Butyl Phthalate ND 10 2.9 1 4-Nitrophenol ND 10 1.6 1 Di-n-Octyl Phthalate ND 10 2.5 1 2-Nitrophenol ND 10 2.6 1 Dibenz (a,h) Anthracene ND 10 2.5 1 Pentachlorophenol ND 10 4.6 1 Dibenzofuran ND 10 2.8 1 Phenanthrene ND 10 2.9 1 1,2-Dichlorobenzene ND 10 3.0 1 Phenol ND 10 2.1 1 1,3-Dichlorobenzene ND 10 3.1 1 Pyrene ND 10 3.0 1 1,4-Dichlorobenzene ND 10 2.9 1 Pyridine ND 10 3.0 1 3,3'-Dichlorobenzidine ND 25 2.6 1 1,2,4-Trichlorobenzene ND 10 2.8 1 2,4-Dichlorophenol ND 10 2.5 1 2,4,6-Trichlorophenol ND 10 2.5 1 Diethyl Phthalate ND 10 2.8 1 2,4,5-Trichlorophenol ND 10 2.5 1 Dimethyl Phthalate ND 10 2.6 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits 2-Fluorobiphenyl 77 42-138 2-Fluorophenol 67 7-121 Nitrobenzene-d5 105 50-146 p-Terphenyl-d14 96 47-173 Phenol-d6 41 1-127 2,4,6-Tribromophenol 90 41-137

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Parameter Result RL DF Qual Parameter Result RL DF Qual Acetone ND 20 1 1,3-Dichloropropane ND 1.0 1 Benzene ND 0.50 1 2,2-Dichloropropane ND 1.0 1 Bromobenzene ND 1.0 1 1,1-Dichloropropene ND 1.0 1 Bromochloromethane ND 1.0 1 c-1,3-Dichloropropene ND 0.50 1 Bromodichloromethane ND 1.0 1 t-1,3-Dichloropropene ND 0.50 1 Bromoform ND 1.0 1 Ethylbenzene ND 1.0 1 Bromomethane ND 10 1 2-Hexanone ND 10 1 2-Butanone ND 10 1 Isopropylbenzene ND 1.0 1 n-Butylbenzene ND 1.0 1 p-Isopropyltoluene ND 1.0 1 sec-Butylbenzene ND 1.0 1 Methylene Chloride ND 10 1 tert-Butylbenzene ND 1.0 1 4-Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND 0.50 1 n-Propylbenzene ND 1.0 1 Chlorobenzene ND 1.0 1 Styrene ND 1.0 1 Chloroethane ND 5.0 1 1,1,1,2-Tetrachloroethane ND 1.0 1 Chloroform ND 1.0 1 1,1,2,2-Tetrachloroethane ND 1.0 1 Chloromethane ND 10 1 Tetrachloroethene ND 1.0 1 2-Chlorotoluene ND 1.0 1 Toluene ND 1.0 1 4-Chlorotoluene ND 1.0 1 1,2,3-Trichlorobenzene ND 1.0 1 Dibromochloromethane ND 1.0 1 1,2,4-Trichlorobenzene ND 1.0 1 1,2-Dibromo-3-Chloropropane ND 5.0 1 1,1,1-Trichloroethane ND 1.0 1 1,2-Dibromoethane ND 1.0 1 1,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Return to Contents Dibromomethane ND 1.0 1 1,1,2-Trichloroethane ND 1.0 1 1,2-Dichlorobenzene ND 1.0 1 Trichloroethene ND 1.0 1 1,3-Dichlorobenzene ND 1.0 1 Trichlorofluoromethane ND 10 1 1,4-Dichlorobenzene ND 1.0 1 1,2,3-Trichloropropane ND 5.0 1 Dichlorodifluoromethane ND 1.0 1 1,2,4-Trimethylbenzene ND 1.0 1 1,1-Dichloroethane ND 1.0 1 1,3,5-Trimethylbenzene ND 1.0 1 1,2-Dichloroethane ND 0.50 1 Vinyl Acetate ND 10 1 1,1-Dichloroethene ND 1.0 1 Vinyl Chloride ND 0.50 1 c-1,2-Dichloroethene ND 1.0 1 p/m-Xylene ND 1.0 1 t-1,2-Dichloroethene ND 1.0 1 o-Xylene ND 1.0 1 1,2-Dichloropropane ND 1.0 1 Methyl-t-Butyl Ether (MTBE) ND 1.0 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits 1,4-Bromofluorobenzene 98 80-120 Dibromofluoromethane 113 80-126 1,2-Dichloroethane-d4 111 80-134 Toluene-d8 102 80-120

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Parameter Result RL DF Qual Parameter Result RL DF Qual Acetone ND 20 1 1,3-Dichloropropane ND 1.0 1 Benzene ND 0.50 1 2,2-Dichloropropane ND 1.0 1 Bromobenzene ND 1.0 1 1,1-Dichloropropene ND 1.0 1 Bromochloromethane ND 1.0 1 c-1,3-Dichloropropene ND 0.50 1 Bromodichloromethane ND 1.0 1 t-1,3-Dichloropropene ND 0.50 1 Bromoform ND 1.0 1 Ethylbenzene ND 1.0 1 Bromomethane ND 10 1 2-Hexanone ND 10 1 2-Butanone ND 10 1 Isopropylbenzene ND 1.0 1 n-Butylbenzene ND 1.0 1 p-Isopropyltoluene ND 1.0 1 sec-Butylbenzene ND 1.0 1 Methylene Chloride ND 10 1 tert-Butylbenzene ND 1.0 1 4-Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND 0.50 1 n-Propylbenzene ND 1.0 1 Chlorobenzene ND 1.0 1 Styrene ND 1.0 1 Chloroethane ND 5.0 1 1,1,1,2-Tetrachloroethane ND 1.0 1 Chloroform ND 1.0 1 1,1,2,2-Tetrachloroethane ND 1.0 1 Chloromethane ND 10 1 Tetrachloroethene ND 1.0 1 2-Chlorotoluene ND 1.0 1 Toluene ND 1.0 1 4-Chlorotoluene ND 1.0 1 1,2,3-Trichlorobenzene ND 1.0 1 Dibromochloromethane ND 1.0 1 1,2,4-Trichlorobenzene ND 1.0 1 1,2-Dibromo-3-Chloropropane ND 5.0 1 1,1,1-Trichloroethane ND 1.0 1 1,2-Dibromoethane ND 1.0 1 1,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Return to Contents Dibromomethane ND 1.0 1 1,1,2-Trichloroethane ND 1.0 1 1,2-Dichlorobenzene ND 1.0 1 Trichloroethene ND 1.0 1 1,3-Dichlorobenzene ND 1.0 1 Trichlorofluoromethane ND 10 1 1,4-Dichlorobenzene ND 1.0 1 1,2,3-Trichloropropane ND 5.0 1 Dichlorodifluoromethane ND 1.0 1 1,2,4-Trimethylbenzene ND 1.0 1 1,1-Dichloroethane ND 1.0 1 1,3,5-Trimethylbenzene ND 1.0 1 1,2-Dichloroethane ND 0.50 1 Vinyl Acetate ND 10 1 1,1-Dichloroethene ND 1.0 1 Vinyl Chloride ND 0.50 1 c-1,2-Dichloroethene ND 1.0 1 p/m-Xylene ND 1.0 1 t-1,2-Dichloroethene ND 1.0 1 o-Xylene ND 1.0 1 1,2-Dichloropropane ND 1.0 1 Methyl-t-Butyl Ether (MTBE) ND 1.0 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits 1,4-Bromofluorobenzene 99 80-120 Dibromofluoromethane 108 80-126 1,2-Dichloroethane-d4 105 80-134 Toluene-d8 101 80-120

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Parameter Result RL DF Qual Parameter Result RL DF Qual Acetone ND 20 1 1,3-Dichloropropane ND 1.0 1 Benzene ND 0.50 1 2,2-Dichloropropane ND 1.0 1 Bromobenzene ND 1.0 1 1,1-Dichloropropene ND 1.0 1 Bromochloromethane ND 1.0 1 c-1,3-Dichloropropene ND 0.50 1 Bromodichloromethane ND 1.0 1 t-1,3-Dichloropropene ND 0.50 1 Bromoform ND 1.0 1 Ethylbenzene ND 1.0 1 Bromomethane ND 10 1 2-Hexanone ND 10 1 2-Butanone ND 10 1 Isopropylbenzene ND 1.0 1 n-Butylbenzene ND 1.0 1 p-Isopropyltoluene ND 1.0 1 sec-Butylbenzene ND 1.0 1 Methylene Chloride ND 10 1 tert-Butylbenzene ND 1.0 1 4-Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND 0.50 1 n-Propylbenzene ND 1.0 1 Chlorobenzene ND 1.0 1 Styrene ND 1.0 1 Chloroethane ND 5.0 1 1,1,1,2-Tetrachloroethane ND 1.0 1 Chloroform ND 1.0 1 1,1,2,2-Tetrachloroethane ND 1.0 1 Chloromethane ND 10 1 Tetrachloroethene ND 1.0 1 2-Chlorotoluene ND 1.0 1 Toluene ND 1.0 1 4-Chlorotoluene ND 1.0 1 1,2,3-Trichlorobenzene ND 1.0 1 Dibromochloromethane ND 1.0 1 1,2,4-Trichlorobenzene ND 1.0 1 1,2-Dibromo-3-Chloropropane ND 5.0 1 1,1,1-Trichloroethane ND 1.0 1 1,2-Dibromoethane ND 1.0 1 1,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Return to Contents Dibromomethane ND 1.0 1 1,1,2-Trichloroethane ND 1.0 1 1,2-Dichlorobenzene ND 1.0 1 Trichloroethene ND 1.0 1 1,3-Dichlorobenzene ND 1.0 1 Trichlorofluoromethane ND 10 1 1,4-Dichlorobenzene ND 1.0 1 1,2,3-Trichloropropane ND 5.0 1 Dichlorodifluoromethane ND 1.0 1 1,2,4-Trimethylbenzene ND 1.0 1 1,1-Dichloroethane ND 1.0 1 1,3,5-Trimethylbenzene ND 1.0 1 1,2-Dichloroethane ND 0.50 1 Vinyl Acetate ND 10 1 1,1-Dichloroethene ND 1.0 1 Vinyl Chloride ND 0.50 1 c-1,2-Dichloroethene ND 1.0 1 p/m-Xylene ND 1.0 1 t-1,2-Dichloroethene ND 1.0 1 o-Xylene ND 1.0 1 1,2-Dichloropropane ND 1.0 1 Methyl-t-Butyl Ether (MTBE) ND 1.0 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits 1,4-Bromofluorobenzene 99 80-120 Dibromofluoromethane 109 80-126 1,2-Dichloroethane-d4 106 80-134 Toluene-d8 101 80-120

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Method Blank 099-04-008-5,777 N/A Aqueous Mercury 01/11/12 01/11/12 120111L02 13:34

Comment(s): -Preparation/analysis for Mercury was performed by EPA 7470A. Parameter Result RL DF Qual Mercury ND 0.000500 1

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/11/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 3010A Total / EPA 7470A Total Method: EPA 6010B / EPA 7470A Units: mg/L Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 2 of 2 Lab Sample Date /Time Date Date/Time Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID Method Blank 097-01-003-12,281 N/A Aqueous ICP 5300 01/11/12 01/11/12 120111LA3 18:25

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/11/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537

Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 1 of 1

Lab Sample Number Date Client Sample Number Collected Matrix SP-RW1-010912 12-01-0563-1 01/09/12 Aqueous

Parameter Results RL DF Qual Units Date Date Method Prepared Analyzed Solids, Total Suspended 45 1.0 1 mg/L 01/12/12 01/12/12 SM 2540 D SP-RW2-011012 12-01-0563-2 01/10/12 Aqueous

Parameter Results RL DF Qual Units Date Date Method Prepared Analyzed Solids, Total Suspended 462 1.00 1 mg/L 01/12/12 01/12/12 SM 2540 D Method Blank N/A Aqueous

Parameter Results RL DF Qual Units Date Date Method Prepared Analyzed Solids, Total Suspended ND 1.0 1 mg/L 01/12/12 01/12/12 SM 2540 D Return to Contents

RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers

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Analytical Report

Arcadis US, Inc. Date Received: 01/11/12 2999 Oak Road, Suite 300 Work Order No.: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8270C Tentatively Identified Compounds (TICs) Project: Shell Ponds / Bay Point, CA / B0092353.0003 Page 1 of 1

Estimated Work Order CEL Sample Sample ID Compound CAS Number RT Conc. (ug/L)

12-01-0563 2SP-RW2-011012trans-2,3-Dimet... 5161-78-4 4.96 10 12-01-0563 2SP-RW2-011012cis-2,4-Dimethy... 61568-43-2 5.25 16 12-01-0563 2SP-RW2-0110122-Ethylthiacycl... 1613-52-1 5.60 24 12-01-0563 2SP-RW2-011012Heptane, 2,2,6,... 141-70-8 5.65 10 12-01-0563 2SP-RW2-011012Indane 496-11-7 6.04 10 12-01-0563 2SP-RW2-011012Hexa-2,4-dienyl... 79482-86-3 6.25 19 12-01-0563 2SP-RW2-011012Benzene, 1,3-di... 4706-90-5 7.80 17 12-01-0563 2SP-RW2-0110125-Ethylcyclopen... 36431-60-4 7.90 24 12-01-0563 2SP-RW2-0110123,4-Dihydroxyac... 1197-09-7 8.15 14 12-01-0563 2SP-RW2-011012Naphthalene, 2,... 582-16-1 8.72 11 Return to Contents

The listed compounds were evaluated as Tentatively Identified Compounds (TIC). TIC evaluations, not being supported by Method Detection Limits (MDLs), preclude quantification of a Reporting Limit.

RT - Retention Time * Page 21 of 38

Analytical Report

Estimated Work Order CEL Sample Sample ID Compound CAS Number RT Conc. (ug/L)

12-01-0563 2SP-RW2-011012Octane, 2,6-dimethyl-2051-30-113.50 14 12-01-0563 2SP-RW2-0110122H-Thiopyran, t... 5161-16-0 13.68 14 12-01-0563 2SP-RW2-0110123-Heptene, 2,2,... 123-48-8 14.83 32 12-01-0563 2SP-RW2-0110122-Ethylthiacycl... 1613-52-1 14.95 32 12-01-0563 2SP-RW2-011012Benzene, 1,2,4,... 95-93-2 16.96 28 Return to Contents

The listed compounds were evaluated as Tentatively Identified Compounds (TIC). TIC evaluations, not being supported by Method Detection Limits (MDLs), preclude quantification of a Reporting Limit.

RT - Retention Time * Page 22 of 38

Quality Control - Spike/Spike Duplicate

Arcadis US, Inc. Date Received: 01/11/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 3010A Total Method: EPA 6010B

Project Shell Ponds / Bay Point, CA / B0092353.0003

Date Date MS/MSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number SP-RW1-010912 Aqueous ICP 5300 01/11/12 01/12/12 120111SA3

Parameter SPIKE ADDED MS %REC MSD %REC %REC CL RPD RPD CL Qualifiers

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - PDS / PDSD

Arcadis US, Inc. Date Received 01/11/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 3010A Total Method: EPA 6010B

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date Analyzed PDS / PDSD Batch Quality Control Sample ID Matrix Instrument Prepared Number

SP-RW1-010912 Aqueous ICP 5300 01/11/12 01/12/12 120111SA3

Parameter SPIKE ADDED PDS %REC PDSD %REC %REC CL RPD RPD CL Qualifiers

Zinc 0.5000 111 113 75-125 2 0-8 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - Spike/Spike Duplicate

Arcadis US, Inc. Date Received: 01/11/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 7470A Total Method: EPA 7470A

Project Shell Ponds / Bay Point, CA / B0092353.0003

Date Date MS/MSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 12-01-0551-1 Aqueous Mercury 01/11/12 01/11/12 120111S02

Parameter SPIKE ADDED MS %REC MSD %REC %REC CL RPD RPD CL Qualifiers

Mercury 0.01000 109 109 57-141 0 0-10 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - Spike/Spike Duplicate

Arcadis US, Inc. Date Received: 01/11/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 5030C Method: EPA 8260B

Project Shell Ponds / Bay Point, CA / B0092353.0003

Date Date MS/MSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 12-01-0485-2 Aqueous GC/MS XX 01/11/12 01/11/12 120111S01

Parameter SPIKE ADDED MS %REC MSD %REC %REC CL RPD RPD CL Qualifiers

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - Spike/Spike Duplicate

Arcadis US, Inc. Date Received: 01/11/12 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 5030C Method: EPA 8260B

Project Shell Ponds / Bay Point, CA / B0092353.0003

Date Date MS/MSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 12-01-0571-2 Aqueous GC/MS XX 01/12/12 01/12/12 120112S01

Parameter SPIKE ADDED MS %REC MSD %REC %REC CL RPD RPD CL Qualifiers

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Matrix: Aqueous or Solid

Parameter Method QC Sample ID Date Analyzed Sample Conc DUP Conc RPD RPD CL Qualifiers

Solids, Total Suspended SM 2540 D SP-RW1-010912 01/12/12 45 47 4 0-10 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 3010A Total Method: EPA 6010B

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number

097-01-003-12,281 Aqueous ICP 5300 01/11/12 01/11/12 120111LA3

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8015B (M)

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 099-14-065-134 Aqueous GC 48 01/12/12 01/13/12 120112B09A

Parameter SPIKE ADDED LCS %REC LCSD %REC %REC CL RPD RPD CL Qualifiers

TPH as Diesel 2000 85 82 75-117 3 0-13 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 7470A Total Method: EPA 7470A

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 099-04-008-5,777 Aqueous Mercury 01/11/12 01/11/12 120111L02

Parameter SPIKE ADDED LCS %REC LCSD %REC %REC CL RPD RPD CL Qualifiers

Mercury 0.01000 102 100 85-121 1 0-10 Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8270C

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number

095-01-003-3,307 Aqueous GC/MS SS 01/24/12 01/24/12 120124L03

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 3510C Method: EPA 8270C SIM PAHs

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number

099-06-008-424 Aqueous GC/MS AAA 01/12/12 01/17/12 120112L08

Dibenz (a,h) Anthracene 2.000 119 114 25-175 0-200 4 0-25 Return to Contents Benzo (g,h,i) Perylene 2.000 113 110 25-157 3-179 3 0-25

Total number of LCS compounds : 18 Total number of ME compounds : 0 Total number of ME compounds allowed : 1 LCS ME CL validation result : Pass

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 5030C Method: EPA 8260B

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number

099-14-001-6,761 Aqueous GC/MS XX 01/11/12 01/11/12 120111L01

Total number of LCS compounds : 12 Total number of ME compounds : 0 Total number of ME compounds allowed : 1 LCS ME CL validation result : Pass Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Quality Control - LCS/LCS Duplicate

Arcadis US, Inc. Date Received: N/A 2999 Oak Road, Suite 300 Work Order No: 12-01-0563 Walnut Creek, CA 94597-2537 Preparation: EPA 5030C Method: EPA 8260B

Project: Shell Ponds / Bay Point, CA / B0092353.0003

Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number

099-14-001-6,775 Aqueous GC/MS XX 01/12/12 01/12/12 120112L01

Total number of LCS compounds : 12 Total number of ME compounds : 0 Total number of ME compounds allowed : 1 LCS ME CL validation result : Pass Return to Contents

RPD - Relative Percent Difference , CL - Control Limit

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Glossary of Terms and Qualifiers

Work Order Number: 12-01-0563

Solid - Unless otherwise indicated, solid sample data is reported on a wet weight basis, not corrected for % moisture. All QC results are reported on a wet weight basis. MPN - Most Probable Number

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Return to Contents Page 37of38

Return to Contents Page 38 of 38

Ranjit Clarke

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