January 15, 2019 Mr. Samil Kim Virginia Cleaners 1650 Shattuck

January 15, 2019

Mr. Samil Kim Virginia Cleaners 1650 Shattuck Avenue Berkeley, California 94708

Subject: Initial Site Investigation Report Virginia Cleaners 1650 Shattuck Avenue, Berkeley, California Dear Mr. Kim: This letter provides findings of the Initial Site Investigation at Virginia Cleaners located at 1650 Shattuck Avenue, Berkeley, California (“Site”). The objective of this investigation was to evaluate the magnitude and extent of volatile organic compound (“VOC”) impacts to soil, soil vapor, and groundwater beneath the Site.

SITE BACKGROUND

The Site is located in a commercial building on the corner of the intersection of Shattuck Avenue and Lincoln Street, and is currently operating as a dry cleaner using a hydrocarbon-based machine. The interior layout of the Site is shown on Figure 1. The dry cleaning machine is located in the northeast corner of the building. A hazardous waste storage area is located near the northeast corner of the building. In September 1994, Artesian Environmental Consultants conducted a subsurface characterization investigation at the Site. The investigation including advancing four on-Site soil borings (B-1 through B-4 on Figure 1); to depths of:

Depth Boring (feet bgs) B-1 11 B-2 16 B-3 24 B-4 11

Soil samples were collected from each boring and analyzed for total petroleum hydrocarbons (“TPH”) as diesel (“TPH-d”), TPH as gasoline (“TPH-g”), benzene, toluene, ethylbenzene, and xylenes (“BTEX”), tetrachloroethene (“PCE”), and trichloroethene (“TCE”). TPH-g and ethylbenzene were detected in the soil sample from B-3 at a concentration of 1.3 parts per million (“ppm”) and 9.8 parts per billion (“ppb”) at 15 feet bgs, respectively. PCE was detected

Genesis Engineering & Redevelopment, Inc. 115 South School Street Suite 8, Lodi, California 95240 Phone: 209.599.2004 • Fax 209.433.3990 Mr. Samil Kim January 15, 2019 Page 2

in the soil sample collected from B-1 at a concentration of 730,000 ppb at 5 feet bgs. TCE was detected in soil collected from B-1 and B-4 at concentrations of >76 ppb at 5 feet bgs and 5.2 ppb at 5 feet bgs, respectively. In November 2014, Environ Phase Consulting Company conducted a Phase II, Preliminary Site Investigation that included advancing four soil vapor borings (SV-1 through SV-4, Figure 1) to a depth of 4 feet bgs; collecting soil vapor samples; and analyzing the samples for VOC. PCE was detected in all four samples ranging in concentration from 2,700 micrograms per cubic meter (“µg/m³”) to 15,000 µg/m³. TCE was detected in all four samples ranging in concentration from 460 µg/m³ to 2,900 µg/m³.

SCOPE OF WORK

The scope of work for the Initial Site Investigation included the collection of soil, soil vapor, and groundwater samples from 6 borings on Site. Four of these were borings were to have been advanced to 20 feet below the ground surface (“bgs”), the estimated depth of groundwater, and reconnaissance groundwater samples collected. However, drilling refusal using a direct push drilling rig was encountered between 10.5 and 15.5 feet bgs in 5 of the borings. The sixth boring was advanced to 20 feet bgs, but groundwater was not encountered. Therefore, no groundwater samples were collected during this investigation. The locations and types of samples collected are discussed below (locations are shown Figure 1). Soil vapor borings were advanced, and soil vapor probes installed in the following locations: 1. Soil Vapor Boring SV-1 - Southwest corner of the parking lot; probes installed at 5 feet and 15 feet bgs. 2. Soil Vapor Boring SV-2 - Southeast corner of the parking lot; probes installed at 5 feet and 15 feet bgs. 3. Soil Vapor Boring SV-3 - Center east side of the parking lot near northeast of the dry cleaners reception; probes installed at 5 feet and 15 feet bgs. 4. Soil Vapor Boring SV-4 - Northeast corner of the parking lot; probes installed at 5 feet and 15 feet bgs. 5. Soil Vapor Boring SV-5 - Northwest corner of the dry cleaning building, near the dry cleaning machine; probes installed at 5 feet and 10 feet bgs. 6. Soil Vapor Boring SV-6 - Middle of the dry cleaning building; probes installed at 5 feet and 10 feet bgs. At each location, soil vapor borings were advanced and permanent soil vapor probes were installed in the following manner. Mr. Samil Kim January 15, 2019 Page 3

1. Once each boring location was cleared of utilities, a 2” diameter boring was first hand augered to 5 feet bgs. 2. Soil Vapor Borings SV-1, SV-3, and SV-4 were then advanced to 15 feet bgs using a direct push drill rig. 3. Soil Vapor Boring SV-2 was advanced to 20 feet bgs using a direct push drill rig. 4. Soil Vapor Borings SV-5 and SV-6 were advanced to 10.5 feet and 12 feet, respectfully, using a direct push drill rig. 5. Soil vapor probes were installed in each boring using ½ stainless steel vapor probes and Teflon tubing at depths of 5 feet bgs (SV-1 through SV-6), 10 feet bgs (SV-5 and SV- 6), and 15 feet bgs (SV-1 through SV-4). 6. From boring depth to surface, backfill between probe intervals was completed using bentonite and cement grout. Each boring was finished at the surface with flush mounted well box. Boring logs and well construction details are in Attachment 1. Soil samples were collect from Soil Vapor Borings SV-1 through SV-4 at depths of 5 feet and 15 feet bgs, with the exception of Soil Vapor Boring SV-2; where samples were collected at 5 feet and10 bgs. All soil samples were collect using TerraCore© samplers and analyzed for VOC by EPA Method 8260B. Soil Vapor Boring SV-2 was advance to 20 feet bgs for the purpose of collecting a groundwater reconnaissance sample. After being advanced to 20 feet, the drill rods were retracted to 15 feet to allow any potential groundwater to enter the borehole. The borehole remained open for 2 hours, however no groundwater collected in the boring. After installation, the probes were allowed to equilibrate for a minimum of 48 hours. Each soil vapor probe was then purged of 3 casing volumes of air and sampled using a 1-Liter summa canister with flow regulated at 200 milliliters per minute. Soil vapor samples were analyzed for VOC by EPA Method TO-15.

FINDINGS

Geologic boring logs (Attachment 1) indicate that the subsurface of the Site is predominantly composed of fine grained materials (i.e., silt and clay) from the surface to a depth of 5 feet bgs and clayey, silty, and/or well graded gravel in most borings from a depth of approximately 5 feet bgs to 20 feet bgs, the maximum depth for the investigation. The analytical results for the soil and soil vapor samples are shown in Tables 1 and 2, respectfully, with the complete laboratory analytical reports included as Attachment 2. The sampling locations with soil vapor analytical results are shown on Figure 1. Some of the Mr. Samil Kim January 15, 2019 Page 4

compounds detected are not typically associated with dry cleaning operations, and were detected below the practical quantization limit (“PQL”). The analytical results are compared to the San Francisco Bay Regional Water Quality Control Board’s (“RWQCB”) Environmental Screening Level (“ESL”) for commercial/industrial Sites (Feb. 2016). Soil • PCE was detected in 3 of the 8 soil samples (Table 1) at concentrations ranging from 0.0041 milligram per kilogram (“mg/kg”) to 0.072 mg/kg; with all detections being below the ESL. PCE was also detected in both duplicate samples from Soil Vapor Probe SV-4 at concentrations below the ESL. Soil Vapor • PCE was detected in 11 of the 12 samples (Table 2) at concentrations ranging from 300 micrograms per cubic meter (“µg/m3”) to 14,000,000 µg/m3, with 7 detections above the ESL of 2,100 µg/m3. In addition, the PQL for PCE in Soil Vapor Probe SV-2 at 15 feet was above the ESL because the sample had to be diluted to quantify acetone in the sample • TCE was detected in 6 of the 12 samples at concentrations ranging from 250 µg/m3 to 100,000 µg/m3, with 2 detections above the ESL of 3,000 µg/m3. In addition, the PQL for TCE in Soil Vapor Probe SV-2 at 15 feet was above the ESL because the sample had to be diluted to quantify acetone in the sample • Cis-1,2-dichloroethene (“cis-1,2-DCE”) was detected in 3 of the 12 samples at concentrations ranging from 310 µg/m3 to 14,000 µg/m3, with all detections below the ESL of 35,000 µg/m3 • Trans-1, 2-dichloroethene (“trans-1,2-DCE”) was detected in 1 of the 12 samples at a concentration of 3,100 µg/m3, which is below the ESL of 350,000 µg/m3 • 1,2-dichloroethane (“1,2-DCA”) was detected in 1 of the 12 samples at a concentration of 430 µg/m3, which is below the ESL of 470 µg/m3. The PQL for 1,2-DCA in Soil Vapor Probe SV-1 at 15 feet; Soil Vapor Probe SV-2 at 15 feet; Soil Vapor Probe SV-3 at 5 feet and 15 feet; Soil Vapor Probe SV-4 at 5 feet; Soil Vapor Probe SV-5 at 5 feet and 10 feet; and Soil Vapor Probe SV-6 at 5 feet and 10 feet were above the ESL because of sample dilution • Additional VOC detected in soil vapor include, acetone, chloroform, benzene, ethylbenzene, toluene, and xylene; with all detections being below their respective ESLs Mr. Samil Kim January 15, 2019 Page 5

DISCUSSION The table below summarizes the detections for PCE and TCE in soil vapor; as these are the Compounds of Primary Concern for this investigation. PCE was detected in all but 1 sample and TCE was detected in 5 samples.

Detections of PCE and TCE in Soil Vapor

3 Sample Depth (ft. Concentration (µg/m ) ID bgs) PCE TCE 5 890 <34 SV-1 15 300 <270 5 390 <35 SV-2 15 <4,800 <4,800 5 1,100 <200 SV-3 15 28,000 250 5 23,000 <200 SV-4 5 (DUP-1) 26,000 <200 15 93,000 680 5 580,000 51,000 SV-5 10 14,000,000 100,000 5 280,000 2,800 SV-6 10 160,000 1,200 ESL* 2,100 3,000

-“*”- San Francisco Bay Regional Water Quality Control Board‘s Environmental Screening Levels

The detection of PCE above screening levels indicates a release of PCE may have occurred at the Site. As shown on Figure 1, the highest concentration of PCE was detected at a depth of 10 feet bgs near the dry cleaning machine (Soil Vapor Probe SV-5, 14,000,000 µg/m3). PCE concentrations below screening levels in Soil Vapor Probes SV-1 and SV-2, approximately 80 feet south of the suspected source area. Other VOC that were detected, including benzene, ethylbenzene, toluene, and total xylenes are typically associated with gasoline. The Site was previously operated as a gasoline station including the use of an underground storage tank that is reported to have been removed from the Site. PCE appears to be naturally degrading, as evidenced by the detections of TCE and cis-1,2-DCE. Mr. Samil Kim January 15, 2019 Page 6

RECOMMENDATIONS Based upon the results of the Initial Site Investigation, additional investigation is recommended at the Site to further delineate the horizontal and vertical extent of soil vapor impacts from PCE and its degradation products. In addition, a groundwater monitoring well should be installed to establish whether groundwater has been impacted by PCE and the groundwater flow direction. If you have any questions or require any additional information, please contact me by telephone at (209) 599-2004 or via email at [email protected]. Respectfully submitted, Genesis Engineering & Redevelopment, Inc.

Edward T. Weyrens, P.G. Project Manager TABLES Table 1

Virginia Cleaners Project Initial Site Investigation

VOC Concentrations in Soil

Concentration (mg/Kg) Sample Sampling Depth cis-1,2- trans-1,2- ID Date (ft. bgs) PCE TCE DCE DCE 11/1/18 5 <0.0039 <0.0039 <0.0039 <0.0039 SV-1 11/1/18 15 <0.0039 <0.0039 <0.0039 <0.0039 11/1/18 5 <0.0042 <0.0042 <0.0042 <0.0042 SV-2 11/1/18 10 <0.0033 <0.0033 <0.0033 <0.0033 11/1/18 5 <0.0050 <0.0050 <0.0050 <0.0050 SV-3 11/1/18 15 0.0045 <0.0033 <0.0033 <0.0033 11/1/18 5 0.0043 <0.0042 <0.0042 <0.0042 DUP-1 5 0.0041 <0.0038 <0.0038 <0.0038 SV-4 10/29/18 15 0.0720 <0.0050 <0.0050 <0.0050 DUP-2 15 0.0200 <0.0037 <0.0037 <0.0037 Screening Level* 0.42 0.46 0.19 0.67

NOTES:

- "PCE" - Tetrachloroethene - "TCE" - Trichloroethene - "cis-1,2-DCE" - cis-1,2-Dichloroethene - "trans-1,2-DCE" - trans-1,2-Dichloroethene "*" - San Francisco Bay Environmental Screening Levels (Feb. 2016)

Virginia Cleaners Project Initial Site Investigation January 2019 1 of 1 Table 2

Virginia Cleaners Project Initial Site Investigation

VOC Concentrations in Soil Vapor

Concentration (µg/m3) Sample Sampling Depth cis-1,2- trans-1,2- Ethyl Total ID Date (ft. bgs) PCE TCE 1,2-DCA 1,1,2-TCA Acetone Benzene Chloroform Toluene Isopropanol* DCE DCE benzene Xylenes 11/1/18 5 890 <34 <34 <34 <84 <84 30J <34 <84 <84 26J <170 230 SV-1 11/1/18 15 300 <270 <270 <270 <680 <680 2,300 <270 <680 77J <270 350J 760 11/1/18 5 390 <35 <35 <35 <86 <86 <86 <35 <86 <86 25J <170 <35 SV-2 11/1/18 15 <4,800 <4,800 <4,800 <4,800 <12,000 <12,000 11,000 <4,800 <12,000 <12,000 <4,800 <24,000 <4,800 11/1/18 5 1,100 <200 <200 <200 <500 <500 4,700 <200 <500 69J 460 400J <200 SV-3 11/1/18 15 28,000 250 <200 <200 <500 140J 9,800 45J <500 61J 390 210J <200 11/1/18 5 23,000 <200 <200 <200 <500 550 3,800 <200 63J <500 <200 <1,000 <200 SV-4 DUP-1 5 26,000 <200 <200 <200 <500 <500 2,500 <200 <500 <500 <200 <1,000 <200 11/1/18 15 93,000 680 <570 <570 430J 1,500 17,000 <570 <1,400 <1,400 2,600 <2,800 <570 11/1/18 5 580,000 51,000 2,000J <3,100 <7,800 <7,800 8,600 <3,100 <390 <7,800 1,400J <16,000 <3,100 SV-5 11/1/18 10 14,000,000 100,000 14,000 3,100J <8,900 <8,900 7,700J <3,600 <440 <8,900 2,200J <18,000 <3,600 11/1/18 5 280,000 2,800 310 <200 <500 <500 2,700 <200 <500 <500 <200 <1,000 <200 SV-6 11/1/18 10 160,000 1,200 <200 <200 <500 <500 1,500 <200 <500 <500 <200 <1,000 <200

Screening Level* 2,100 3,000 35,000 350,000 470 770 140x106 420 530 4,900 1.3x106 440,000 NA

NOTES: - "PCE" - Tetrachloroethene - "Isopropanol*" - Used as leak detection agent - "TCE" - Trichloroethene "*"- San Francisco Bay Environmental Screening Levels (Feb. 2016) - "cis-1,2-DCE" - cis-1,2-Dichloroethene - "NA" -not applicable - "1,2-DCA" - 1,2-Dichloroethane - "Bold" - Detection above the screening level - "1,1,2-TCA" - 1,1,2-Trichloroethane - "J" - Estimated Value

Virginia Cleaners Project Initial Site Investigation January 2019 1 of 1

FIGURE

Waste Drum SV-5 SV-3-4 SV-2-4 Area Depth PCE TCE Sampling Date (ft bgs) (µg/m3) (µg/m3) SV-4 B-4 5 580,000 51,000 B-1 SV-1-4 11/1/2018 Boiler 10 14,000,000 100,000 SV-4-4 Room Screening Level 2,100 3,000 SV-4 SV-5 Depth PCE TCE Sampling Date Dry (ft bgs) (µg/m3) (µg/m3) Cleaning 5 23,000 <200 Machine 11/1/2018 Parking 15 93,000 680 Lot Screening Level 2,100 3,000

SV-6 Depth PCE TCE VIRGINIA Sampling Date 3 3 (ft bgs) (µg/m ) (µg/m ) CLEANERS 5 280,000 2,800 11/1/2018 10 160,000 1,200 SV-6 SV-3 Screening Level 2,100 3,000

SV-3 Depth SHATTUCKPCEAVENUE TCE Sampling Date 3 3 SV-1 (ft bgs) (µg/m ) (µg/m ) 1,100 <200 Depth PCE TCE Canopy 5 Sampling Date 11/1/2018 (ft bgs) (µg/m3) (µg/m3) 15 28,000 250 5 890 <34 Screening Level 2,100 3,000 11/1/2018 15 300 <270 Screening Level 2,100 3,000

Approx. B-2 Parking Former Lot UST SV-2 Location SV-1 B-3 SV-2 Depth PCE TCE Sampling Date (ft bgs) (µg/m3) (µg/m3) 5 390 <35 11/1/2018 15 <4,800 <4,800 Screening Level 2,100 3,000 LINCOLN STREET Legend Property Boundary Historical Sampling Location (1994)

Historical Sampling Location (2014) 0 10 20 40

Soil Vapor Sampling Location (2018) Scale in Feet

ANALYTICAL RESULTS IN SOIL VAPOR Virginia Cleaners 1650 Shattuck Avenue, Berkeley, California

Designed: EW Project Number: 252-C-4 Figure 115 S. School Street. Lodi, CA 95240 Drawn: DH File: 252C4_1 1 Tel: 209.599.2004 . Fax: 209.433.3990 www.gercorp.com Checked: EW Revision: xxxxx Date: 11/19/18

ATTACHMENT 1

Boring Logs

Boring Log with Soil Vapor Probe Construction Details Page 1 of 1 Client Name Samil Kim Boring Name SV-1 Job/Site Name Virginia Cleaners Drilling Started 10/29/18 Location 16505 Schattuck Avenue Drilling Completed 10/29/18 Project Number 252-C-2 Ground Surface Elevation - Driller PeneCore DrillingBoring Location SE Corner of Site Drilling Method Hand Auger to 5' then DP Total Boring Depth 15.5 feet Boring Diameter 2-inch Northing/Lat. - Logged By C. Hammond Easting/Long. - Reviewed By E. Weyrens (P.G.# 9293)

Depth to Water (First Encountered) - Depth to Water (Static) - Log

Time Well Diagram Depth (ft bgs) Graphic U.S.C.S Sampled Contact Sample ID PID (ppm) Depth (ft bgs) Date Sampled Lithologic Description 0 (0.0- 0.3) Concrete 0.0 Well Box 0.3 (0.3- 1.0) Aggregate Base CH 1.0 (1.0- 3.0) FAT CLAY: black (5Y 2.5/1), moist

Grout

CL (3.0- 4.0) LEAN CLAY: olive (5Y 4/3), moist 3.0

Bentonite ML (4.0- 6.0) SILT with Sand: olive (5Y 4/3), 75% silt, 4.0 20% fine sand, 5% gravel up to 1 inch, moist #3 Monterey Sand 10/29/18 08:20 1.3 SV-1-5 5 SV-1-5

GM (6.0- 15.5) Silty GRAVEL: olive (5Y 4/3), 70% gravel 6.0 up to 1 inch, 30% silt, moist

@10 feet: 10% fine sand / 20% silt, slight hydrocarbon odor

@15.5 feet: Boring Complete (Refusal), 10/29/18

4.3 10

Grout

Bentonite

#3 Monterey Sand 10/29/18 09:04 1.2 SV-1-15 15 SV-1-15 Boring Log with Soil Vapor Probe Construction Details Page 1 of 1 Client Name Samil Kim Boring Name SV-2 Job/Site Name Virginia Cleaners Drilling Started 10/29/18 Location 16505 Schattuck Avenue Drilling Completed 10/29/18 Project Number 252-C-2 Ground Surface Elevation - Driller PeneCore DrillingBoring Location SW Corner of Site Drilling Method Hand Auger to 5' then DP Total Boring Depth 20 feet Boring Diameter 2-inch Northing/Lat. - Logged By C. Hammond Easting/Long. - Reviewed By E. Weyrens (P.G.# 9293)

Depth to Water (First Encountered) - Depth to Water (Static) - Log

CL (3.0- 4.0) LEAN CLAY: olive (5Y 4/3), moist 3.0 Bentonite ML (4.0- 5.0) SILT with Sand: olive (5Y 4/3), 75% silt, 4.0 20% fine sand, 5% gravel up to 1 inch, moist #3 Monterey Sand 10/29/18 08:32 1.5 SV-2-5 5 GW (5.0- 10.0) Well Graded GRAVEL: olive (5Y 4/3), 5.0 SV-2-5 80% gravel up to 1 inch, 10% fine sand, 10% silt, moist

10/29/18 09:44 1.7 SV-2-10 10 NR (10.0- 20.0) No Recovery 10.0

@20 feet: Boring Complete 10/29/18 Grout

Bentonite

#3 Monterey Sand 15 SV-2-15

20 Boring Log with Soil Vapor Probe Construction Details Page 1 of 1 Client Name Samil Kim Boring Name SV-3 Job/Site Name Virginia Cleaners Drilling Started 10/29/18 Location 16505 Schattuck Avenue Drilling Completed 10/29/18 Project Number 252-C-2 Ground Surface Elevation - Driller PeneCore DrillingBoring Location Middle of Site Parking Lot Drilling Method Hand Auger to 5' then DP Total Boring Depth 15.5 feet Boring Diameter 2-inch Northing/Lat. - Logged By C. Hammond Easting/Long. - Reviewed By E. Weyrens (P.G.# 9293)

Depth to Water (First Encountered) - Depth to Water (Static) - Log

Time Well Diagram Depth (ft bgs) Graphic U.S.C.S Sampled Contact Sample ID PID (ppm) Depth (ft bgs) Date Sampled Lithologic Description 0 (0.0- 0.5) Concrete 0.0 Well Box 0.5 CH (0.5- 0.7) Aggregate Base 0.7 (0.7- 4.0) FAT CLAY: black (5Y 2.5/1), moist

Grout

Bentonite CL (4.0- 6.0) LEAN CLAY: olive (5Y 4/3), moist 4.0 #3 Monterey Sand 10/29/18 11:00 1.2 SV-3-5 5 SV-3-5

GW (6.0- 8.0) Well Graded GRAVEL: olive (5Y 4/3), 6.0 80% gravel up to 1 inch, 10% fine sand, 10% silt, moist

GC (8.0- 12.0) Clayey GRAVEL: olive gray (5Y 4/2), 8.0 60% gravel up to 1 inch, 40% clay, moist

1.7 10

Grout

GW (12.0- 15.5) Well Graded Gravel: olive (5Y 4/3), 12.0 60% gravel up to 1.5 inch, 20% coarse to fine sand, 20% silt, moist

@15.5 feet: Boring Complete (Refusal) 10/29/18 Bentonite

#3 Monterey Sand 10/29/18 11:16 1.1 SV-3-15 15 SV-3-15 Boring Log with Soil Vapor Probe Construction Details Page 1 of 1 Client Name Samil Kim Boring Name SV-4 Job/Site Name Virginia Cleaners Drilling Started 10/29/18 Location 16505 Schattuck Avenue Drilling Completed 10/29/18 Project Number 252-C-2 Ground Surface Elevation - Driller PeneCore DrillingBoring Location NE Corner of Parking Lot Drilling Method Hand Auger to 5' then DP Total Boring Depth 15.5 feet Boring Diameter 2-inch Northing/Lat. - Logged By C. Hammond Easting/Long. - Reviewed By E. Weyrens (P.G.# 9293)

Depth to Water (First Encountered) - Depth to Water (Static) - Log

Time Well Diagram Depth (ft bgs) Graphic U.S.C.S Sampled Contact Sample ID PID (ppm) Depth (ft bgs) Date Sampled Lithologic Description 0 (0.0- 0.5) Concrete 0.0 Well Box

(0.5- 1.0) Aggregate Base 0.5 CH 1.0 (1.0- 4.0) FAT CLAY: black (5Y 2.5/1), moist

Grout

Bentonite CL (4.0- 5.0) LEAN CLAY: olive (5Y 4/3), moist 4.0 #3 Monterey Sand 10/29/18 11:46 1.2 SV-4-5 5 SV-4-5 GC (5.0- 10.0) Clayey GRAVEL: olive (5Y 4/3), 60% 5.0 gravel up to 1 inch, 40% clay, moist

1.7 10 SC (10.0- 14.0) Clayey SAND: olive (5Y 4/3), 60% fine 10.0 sand, 40% clay, moist to wet Grout

Bentonite GC (14.0- 15.5) Clayey GRAVEL: olive (5Y 4/3), 60% 14.0 gravel up to 1 inch, 40% clay, moist #3 Monterey Sand 10/29/18 12:11 1.1 SV-4-15 15 @15.5 feet: Boring Complete (Refusal) 10/29/18 SV-4-15 Boring Log with Soil Vapor Probe Construction Details Page 1 of 1 Client Name Samil Kim Boring Name SV-5 Job/Site Name Virginia Cleaners Drilling Started 10/29/18 Location 1650 Schattuck Avenue Drilling Completed 10/29/18 Project Number 252-C-2 Ground Surface Elevation - Driller PeneCore DrillingBoring Location Middle of cleaners Drilling Method Hand Auger to 5' then DP Total Boring Depth 15.5 feet Boring Diameter 2-inch Northing/Lat. - Logged By C. Hammond Easting/Long. - Reviewed By E. Weyrens (P.G.# 9293)

Depth to Water (First Encountered) - Depth to Water (Static) - Log

Time Well Diagram Depth (ft bgs) Graphic U.S.C.S Sampled Contact Sample ID PID (ppm) Depth (ft bgs) Date Sampled Lithologic Description 0 (0.0- 1.0) Concrete: Concrete 0.0 Well Box

(1.0- 1.5) Fill: Fill Sand @1.5 feet: vapor barrier 1.0

(1.5- 2.0) AB: Aggregrate Base 1.5 CH 2.0 (2.0- 7.0) CH: FAT CLAY: black (5Y 2.5/1), moist Grout

Bentonite

#3 Monterey Sand 1.2 5 SV-5-5

Grout

CL (7.0- 9.0) CL: LEAN CLAY with Gravel: olive (5Y 7.0 4/3), 75% clay, 25% gravel up to 1/4 inch, moist

Bentonite GC (9.0- 10.5) GC: Clayey GRAVEL: olive (5Y 4/3), 9.0 60% gravel up to 1 inch, 40% clay, moist #3 Monterey Sand 1.3 10 @10.5 feet: Boring Complete (Refusal) 10/29/18 SV-5-10

15 Boring Log with Soil Vapor Probe Construction Details Page 1 of 1 Client Name Samil Kim Boring Name SV-6 Job/Site Name Virginia Cleaners Drilling Started 10/29/18 Location 1650 Schattuck Avenue Drilling Completed 10/29/18 Project Number 252-C-2 Ground Surface Elevation - Driller PeneCore DrillingBoring Location Middle of cleaners Drilling Method Hand Auger to 5' then DP Total Boring Depth 15.5 feet Boring Diameter 2-inch Northing/Lat. - Logged By C. Hammond Easting/Long. - Reviewed By E. Weyrens (P.G.# 9293)

Depth to Water (First Encountered) - Depth to Water (Static) - Log

Time Well Diagram Depth (ft bgs) Graphic U.S.C.S Sampled Contact Sample ID PID (ppm) Depth (ft bgs) Date Sampled Lithologic Description 0 (0.0- 1.0) Concrete 0.0 Well Box

(1.0- 1.5) Fill Sand @1.5 feet: vapor barrier 1.0

(1.5- 2.0) Aggregrate Base 1.5 CH 2.0 (2.0- 7.0) FAT CLAY: black (5Y 2.5/1), moist Grout

Bentonite

#3 Monterey Sand 1.1 5 SV-6-5

Grout

CL (7.0- 9.0) LEAN CLAY: olive (5Y 4/3), moist 7.0

Bentonite CL (9.0- 11.0) LEAN CLAY with Gravel: olive (5Y 4/3), 9.0 75% clay, 25% gravel up to 1/4 inch, moist #3 Monterey Sand 1.7 10 SV-6-10

(11.0- 12.0) Clayey GRAVEL: olive (5Y 4/3), 60% gravel up to 1 inch, 40% clay, moist GC 11.0 @12 feet: Boring Complete (Refusal) 10/29/18

ATTACHMENT 2

Laboratory Analytical Report

Laboratories, Inc. Environmental Testing Laboratory Since 1949 Date of Report: 11/07/2018

Ed T. Weyrens

Genesis Engineering & Redevelopment 115 South School Street, Suite #8 Lodi, CA 95240

Client Project: 252-6-3 BCL Project: Virginia Cleaners BCL Work Order: 1834229 Invoice ID: B321431

Enclosed are the results of analyses for samples received by the laboratory on 10/31/2018. If you have any questions concerning this report, please feel free to contact me.

Sincerely,

Contact Person: Christina Herndon Stuart Buttram Client Service Rep Technical Director

Certifications: CA ELAP #1186; NV #CA00014; OR ELAP #4032-001; AK UST101

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 1 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949 Table of Contents

Sample Information Chain of Custody and Cooler Receipt form...... 3 Laboratory / Client Sample Cross Reference...... 6 Sample Results 1834229-01 - SV-1-5 Volatile Organic Analysis (EPA Method 8260B/5035)...... 8 1834229-02 - SV-1-15 Volatile Organic Analysis (EPA Method 8260B/5035)...... 11 1834229-03 - SV-2-5 Volatile Organic Analysis (EPA Method 8260B/5035)...... 14 1834229-04 - SV-2-10 Volatile Organic Analysis (EPA Method 8260B/5035)...... 17 1834229-05 - SV-3-5 Volatile Organic Analysis (EPA Method 8260B/5035)...... 20 1834229-06 - SV-3-15 Volatile Organic Analysis (EPA Method 8260B/5035)...... 23 1834229-07 - SV-4-5 Volatile Organic Analysis (EPA Method 8260B/5035)...... 26 1834229-08 - DUP-1 Volatile Organic Analysis (EPA Method 8260B/5035)...... 29 1834229-09 - SV-4-15 Volatile Organic Analysis (EPA Method 8260B/5035)...... 32 1834229-10 - DUP-2 Volatile Organic Analysis (EPA Method 8260B/5035)...... 35 1834229-11 - WS-1 Volatile Organic Analysis (EPA Method 8260B)...... 38 Quality Control Reports Volatile Organic Analysis (EPA Method 8260B) Method Blank Analysis...... 41 Laboratory Control Sample...... 43 Precision and Accuracy...... 44 Volatile Organic Analysis (EPA Method 8260B/5035) Method Blank Analysis...... 45 Laboratory Control Sample...... 47 Precision and Accuracy...... 48 Notes Notes and Definitions...... 49

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 2 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949 Chain of Custody and Cooler Receipt Form for 1834229 Page 1 of 3

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 3 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949 Chain of Custody and Cooler Receipt Form for 1834229 Page 2 of 3

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 4 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949 Chain of Custody and Cooler Receipt Form for 1834229 Page 3 of 3

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 5 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

Laboratory Client Sample Information

1834229-01 COC Number: --- Receive Date: 10/31/2018 09:00 Project Number: --- Sampling Date: 10/29/2018 08:20 Sampling Location: --- Sample Depth: --- Sampling Point: SV-1-5 Lab Matrix: Solids Sampled By: Chris H. Sample Type: Soil

1834229-02 COC Number: --- Receive Date: 10/31/2018 09:00 Project Number: --- Sampling Date: 10/29/2018 09:04 Sampling Location: --- Sample Depth: --- Sampling Point: SV-1-15 Lab Matrix: Solids Sampled By: --- Sample Type: Soil

1834229-03 COC Number: --- Receive Date: 10/31/2018 09:00 Project Number: --- Sampling Date: 10/29/2018 08:32 Sampling Location: --- Sample Depth: --- Sampling Point: SV-2-5 Lab Matrix: Solids Sampled By: --- Sample Type: Soil

1834229-04 COC Number: --- Receive Date: 10/31/2018 09:00 Project Number: --- Sampling Date: 10/29/2018 09:44 Sampling Location: --- Sample Depth: --- Sampling Point: SV-2-10 Lab Matrix: Solids Sampled By: --- Sample Type: Soil

1834229-05 COC Number: --- Receive Date: 10/31/2018 09:00 Project Number: --- Sampling Date: 10/29/2018 11:00 Sampling Location: --- Sample Depth: --- Sampling Point: SV-3-5 Lab Matrix: Solids Sampled By: --- Sample Type: Soil

1834229-06 COC Number: --- Receive Date: 10/31/2018 09:00 Project Number: --- Sampling Date: 10/29/2018 11:16 Sampling Location: --- Sample Depth: --- Sampling Point: SV-3-15 Lab Matrix: Solids Sampled By: --- Sample Type: Soil

1834229-07 COC Number: --- Receive Date: 10/31/2018 09:00 Project Number: --- Sampling Date: 10/29/2018 11:46 Sampling Location: --- Sample Depth: --- Sampling Point: SV-4-5 Lab Matrix: Solids Sampled By: --- Sample Type: Soil

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 6 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

Laboratory Client Sample Information

1834229-08 COC Number: --- Receive Date: 10/31/2018 09:00 Project Number: --- Sampling Date: 10/29/2018 11:46 Sampling Location: --- Sample Depth: --- Sampling Point: DUP-1 Lab Matrix: Solids Sampled By: --- Sample Type: Soil

1834229-09 COC Number: --- Receive Date: 10/31/2018 09:00 Project Number: --- Sampling Date: 10/29/2018 12:11 Sampling Location: --- Sample Depth: --- Sampling Point: SV-4-15 Lab Matrix: Solids Sampled By: --- Sample Type: Soil

1834229-10 COC Number: --- Receive Date: 10/31/2018 09:00 Project Number: --- Sampling Date: 10/29/2018 12:11 Sampling Location: --- Sample Depth: --- Sampling Point: DUP-2 Lab Matrix: Solids Sampled By: --- Sample Type: Soil

1834229-11 COC Number: --- Receive Date: 10/31/2018 09:00 Project Number: --- Sampling Date: 10/29/2018 16:00 Sampling Location: --- Sample Depth: --- Sampling Point: WS-1 Lab Matrix: Solids Sampled By: --- Sample Type: Soil

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 7 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-01 Client Sample Name: SV-1-5, 10/29/2018 8:20:00AM, Chris H. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Benzene ND mg/kg 0.0039 0.0010 EPA-8260B ND 1 Bromobenzene ND mg/kg 0.0039 0.0010 EPA-8260B ND 1 Bromochloromethane ND mg/kg 0.0039 0.00071 EPA-8260B ND 1 Bromodichloromethane ND mg/kg 0.0039 0.00065 EPA-8260B ND 1 Bromoform ND mg/kg 0.0039 0.0012 EPA-8260B ND 1 Bromomethane ND mg/kg 0.0039 0.0012 EPA-8260B ND 1 n-Butylbenzene ND mg/kg 0.0039 0.0012 EPA-8260B ND 1 sec-Butylbenzene ND mg/kg 0.0039 0.00093 EPA-8260B ND 1 tert-Butylbenzene ND mg/kg 0.0039 0.00093 EPA-8260B ND 1 Carbon tetrachloride ND mg/kg 0.0039 0.00085 EPA-8260B ND 1 Chlorobenzene ND mg/kg 0.0039 0.0010 EPA-8260B ND 1 Chloroethane ND mg/kg 0.0039 0.0011 EPA-8260B ND 1 Chloroform ND mg/kg 0.0039 0.00049 EPA-8260B ND 1 Chloromethane ND mg/kg 0.0039 0.0011 EPA-8260B ND 1 2-Chlorotoluene ND mg/kg 0.0039 0.0014 EPA-8260B ND 1 4-Chlorotoluene ND mg/kg 0.0039 0.0011 EPA-8260B ND 1 Dibromochloromethane ND mg/kg 0.0039 0.00076 EPA-8260B ND 1 1,2-Dibromo-3-chloropropane ND mg/kg 0.0039 0.0013 EPA-8260B ND 1 1,2-Dibromoethane ND mg/kg 0.0039 0.00077 EPA-8260B ND 1 Dibromomethane ND mg/kg 0.0039 0.0014 EPA-8260B ND 1 1,2-Dichlorobenzene ND mg/kg 0.0039 0.00062 EPA-8260B ND 1 1,3-Dichlorobenzene ND mg/kg 0.0039 0.0011 EPA-8260B ND 1 1,4-Dichlorobenzene ND mg/kg 0.0039 0.0012 EPA-8260B ND 1 Dichlorodifluoromethane ND mg/kg 0.0039 0.0010 EPA-8260B ND 1 1,1-Dichloroethane ND mg/kg 0.0039 0.0011 EPA-8260B ND 1 1,2-Dichloroethane ND mg/kg 0.0039 0.00066 EPA-8260B ND 1 1,1-Dichloroethene ND mg/kg 0.0039 0.00093 EPA-8260B ND 1 cis-1,2-Dichloroethene ND mg/kg 0.0039 0.0010 EPA-8260B ND 1 trans-1,2-Dichloroethene ND mg/kg 0.0039 0.0011 EPA-8260B ND 1 1,2-Dichloropropane ND mg/kg 0.0039 0.00062 EPA-8260B ND 1 1,3-Dichloropropane ND mg/kg 0.0039 0.00085 EPA-8260B ND 1 2,2-Dichloropropane ND mg/kg 0.0039 0.0010 EPA-8260B ND 1 1,1-Dichloropropene ND mg/kg 0.0039 0.00093 EPA-8260B ND 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 8 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-01 Client Sample Name: SV-1-5, 10/29/2018 8:20:00AM, Chris H. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # cis-1,3-Dichloropropene ND mg/kg 0.0039 0.00085 EPA-8260B ND 1 trans-1,3-Dichloropropene ND mg/kg 0.0039 0.00093 EPA-8260B ND 1 Ethylbenzene ND mg/kg 0.0039 0.0012 EPA-8260B ND 1 Hexachlorobutadiene ND mg/kg 0.0039 0.0013 EPA-8260B ND 1 Isopropylbenzene ND mg/kg 0.0039 0.0010 EPA-8260B ND 1 p-Isopropyltoluene ND mg/kg 0.0039 0.0010 EPA-8260B ND 1 Methylene chloride ND mg/kg 0.0077 0.0019 EPA-8260B ND 1 Methyl t-butyl ether ND mg/kg 0.0039 0.00039 EPA-8260B ND 1 Naphthalene ND mg/kg 0.0039 0.0011 EPA-8260B ND 1 n-Propylbenzene ND mg/kg 0.0039 0.0010 EPA-8260B ND 1 Styrene ND mg/kg 0.0039 0.0011 EPA-8260B ND 1 1,1,1,2-Tetrachloroethane ND mg/kg 0.0039 0.00085 EPA-8260B ND 1 1,1,2,2-Tetrachloroethane ND mg/kg 0.0039 0.00085 EPA-8260B ND 1 Tetrachloroethene ND mg/kg 0.0039 0.0010 EPA-8260B ND 1 Toluene ND mg/kg 0.0039 0.00093 EPA-8260B ND 1 1,2,3-Trichlorobenzene ND mg/kg 0.0039 0.0016 EPA-8260B ND 1 1,2,4-Trichlorobenzene ND mg/kg 0.0039 0.0015 EPA-8260B ND 1 1,1,1-Trichloroethane ND mg/kg 0.0039 0.00085 EPA-8260B ND 1 1,1,2-Trichloroethane ND mg/kg 0.0039 0.00059 EPA-8260B ND 1 Trichloroethene ND mg/kg 0.0039 0.00085 EPA-8260B ND 1 Trichlorofluoromethane ND mg/kg 0.0039 0.00085 EPA-8260B ND 1 1,2,3-Trichloropropane ND mg/kg 0.0039 0.0012 EPA-8260B ND 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND mg/kg 0.0039 0.0010 EPA-8260B ND 1 1,2,4-Trimethylbenzene ND mg/kg 0.0039 0.0010 EPA-8260B ND 1 1,3,5-Trimethylbenzene ND mg/kg 0.0039 0.0012 EPA-8260B ND 1 Vinyl chloride ND mg/kg 0.0039 0.0012 EPA-8260B ND 1 Total Xylenes ND mg/kg 0.0077 0.0026 EPA-8260B ND 1 p- & m-Xylenes ND mg/kg 0.0039 0.0017 EPA-8260B ND 1 o-Xylene ND mg/kg 0.0039 0.00093 EPA-8260B ND 1 1,2-Dichloroethane-d4 (Surrogate) 117 % 70 - 121 (LCL - UCL) EPA-8260B 1 Toluene-d8 (Surrogate) 97.4 % 81 - 117 (LCL - UCL) EPA-8260B 1 4-Bromofluorobenzene (Surrogate) 107 % 74 - 121 (LCL - UCL) EPA-8260B 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 9 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-01 Client Sample Name: SV-1-5, 10/29/2018 8:20:00AM, Chris H. Run QC Run # Method Prep Date Date/Time Analyst Instrument Dilution Batch ID 1 EPA-8260B 11/02/18 12:00 11/02/18 17:28 ADC MS-V2 0.772 B029093

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 10 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-02 Client Sample Name: SV-1-15, 10/29/2018 9:04:00AM MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Benzene ND mg/kg 0.0039 0.0010 EPA-8260B ND 1 Bromobenzene ND mg/kg 0.0039 0.0010 EPA-8260B ND 1 Bromochloromethane ND mg/kg 0.0039 0.00071 EPA-8260B ND 1 Bromodichloromethane ND mg/kg 0.0039 0.00065 EPA-8260B ND 1 Bromoform ND mg/kg 0.0039 0.0012 EPA-8260B ND 1 Bromomethane ND mg/kg 0.0039 0.0012 EPA-8260B ND 1 n-Butylbenzene ND mg/kg 0.0039 0.0012 EPA-8260B ND 1 sec-Butylbenzene ND mg/kg 0.0039 0.00092 EPA-8260B ND 1 tert-Butylbenzene ND mg/kg 0.0039 0.00092 EPA-8260B ND 1 Carbon tetrachloride ND mg/kg 0.0039 0.00085 EPA-8260B ND 1 Chlorobenzene ND mg/kg 0.0039 0.0010 EPA-8260B ND 1 Chloroethane ND mg/kg 0.0039 0.0011 EPA-8260B ND 1 Chloroform ND mg/kg 0.0039 0.00049 EPA-8260B ND 1 Chloromethane ND mg/kg 0.0039 0.0011 EPA-8260B ND 1 2-Chlorotoluene ND mg/kg 0.0039 0.0014 EPA-8260B ND 1 4-Chlorotoluene ND mg/kg 0.0039 0.0011 EPA-8260B ND 1 Dibromochloromethane ND mg/kg 0.0039 0.00076 EPA-8260B ND 1 1,2-Dibromo-3-chloropropane ND mg/kg 0.0039 0.0013 EPA-8260B ND 1 1,2-Dibromoethane ND mg/kg 0.0039 0.00077 EPA-8260B ND 1 Dibromomethane ND mg/kg 0.0039 0.0014 EPA-8260B ND 1 1,2-Dichlorobenzene ND mg/kg 0.0039 0.00062 EPA-8260B ND 1 1,3-Dichlorobenzene ND mg/kg 0.0039 0.0011 EPA-8260B ND 1 1,4-Dichlorobenzene ND mg/kg 0.0039 0.0012 EPA-8260B ND 1 Dichlorodifluoromethane ND mg/kg 0.0039 0.0010 EPA-8260B ND 1 1,1-Dichloroethane ND mg/kg 0.0039 0.0011 EPA-8260B ND 1 1,2-Dichloroethane ND mg/kg 0.0039 0.00065 EPA-8260B ND 1 1,1-Dichloroethene ND mg/kg 0.0039 0.00092 EPA-8260B ND 1 cis-1,2-Dichloroethene ND mg/kg 0.0039 0.0010 EPA-8260B ND 1 trans-1,2-Dichloroethene ND mg/kg 0.0039 0.0011 EPA-8260B ND 1 1,2-Dichloropropane ND mg/kg 0.0039 0.00062 EPA-8260B ND 1 1,3-Dichloropropane ND mg/kg 0.0039 0.00085 EPA-8260B ND 1 2,2-Dichloropropane ND mg/kg 0.0039 0.0010 EPA-8260B ND 1 1,1-Dichloropropene ND mg/kg 0.0039 0.00092 EPA-8260B ND 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 11 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-02 Client Sample Name: SV-1-15, 10/29/2018 9:04:00AM MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # cis-1,3-Dichloropropene ND mg/kg 0.0039 0.00085 EPA-8260B ND 1 trans-1,3-Dichloropropene ND mg/kg 0.0039 0.00092 EPA-8260B ND 1 Ethylbenzene ND mg/kg 0.0039 0.0012 EPA-8260B ND 1 Hexachlorobutadiene ND mg/kg 0.0039 0.0013 EPA-8260B ND 1 Isopropylbenzene ND mg/kg 0.0039 0.0010 EPA-8260B ND 1 p-Isopropyltoluene ND mg/kg 0.0039 0.0010 EPA-8260B ND 1 Methylene chloride ND mg/kg 0.0077 0.0018 EPA-8260B ND 1 Methyl t-butyl ether ND mg/kg 0.0039 0.00039 EPA-8260B ND 1 Naphthalene ND mg/kg 0.0039 0.0011 EPA-8260B ND 1 n-Propylbenzene ND mg/kg 0.0039 0.0010 EPA-8260B ND 1 Styrene ND mg/kg 0.0039 0.0011 EPA-8260B ND 1 1,1,1,2-Tetrachloroethane ND mg/kg 0.0039 0.00085 EPA-8260B ND 1 1,1,2,2-Tetrachloroethane ND mg/kg 0.0039 0.00085 EPA-8260B ND 1 Tetrachloroethene ND mg/kg 0.0039 0.0010 EPA-8260B ND 1 Toluene ND mg/kg 0.0039 0.00092 EPA-8260B ND 1 1,2,3-Trichlorobenzene ND mg/kg 0.0039 0.0016 EPA-8260B ND 1 1,2,4-Trichlorobenzene ND mg/kg 0.0039 0.0015 EPA-8260B ND 1 1,1,1-Trichloroethane ND mg/kg 0.0039 0.00085 EPA-8260B ND 1 1,1,2-Trichloroethane ND mg/kg 0.0039 0.00059 EPA-8260B ND 1 Trichloroethene ND mg/kg 0.0039 0.00085 EPA-8260B ND 1 Trichlorofluoromethane ND mg/kg 0.0039 0.00085 EPA-8260B ND 1 1,2,3-Trichloropropane ND mg/kg 0.0039 0.0012 EPA-8260B ND 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND mg/kg 0.0039 0.0010 EPA-8260B ND 1 1,2,4-Trimethylbenzene ND mg/kg 0.0039 0.0010 EPA-8260B ND 1 1,3,5-Trimethylbenzene ND mg/kg 0.0039 0.0012 EPA-8260B ND 1 Vinyl chloride ND mg/kg 0.0039 0.0012 EPA-8260B ND 1 Total Xylenes ND mg/kg 0.0077 0.0026 EPA-8260B ND 1 p- & m-Xylenes ND mg/kg 0.0039 0.0017 EPA-8260B ND 1 o-Xylene ND mg/kg 0.0039 0.00092 EPA-8260B ND 1 1,2-Dichloroethane-d4 (Surrogate) 117 % 70 - 121 (LCL - UCL) EPA-8260B 1 Toluene-d8 (Surrogate) 99.8 % 81 - 117 (LCL - UCL) EPA-8260B 1 4-Bromofluorobenzene (Surrogate) 100 % 74 - 121 (LCL - UCL) EPA-8260B 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 12 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-02 Client Sample Name: SV-1-15, 10/29/2018 9:04:00AM Run QC Run # Method Prep Date Date/Time Analyst Instrument Dilution Batch ID 1 EPA-8260B 11/02/18 12:00 11/02/18 17:50 ADC MS-V2 0.770 B029093

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 13 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-03 Client Sample Name: SV-2-5, 10/29/2018 8:32:00AM MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Benzene ND mg/kg 0.0042 0.0011 EPA-8260B ND 1 Bromobenzene ND mg/kg 0.0042 0.0011 EPA-8260B ND 1 Bromochloromethane ND mg/kg 0.0042 0.00077 EPA-8260B ND 1 Bromodichloromethane ND mg/kg 0.0042 0.00070 EPA-8260B ND 1 Bromoform ND mg/kg 0.0042 0.0012 EPA-8260B ND 1 Bromomethane ND mg/kg 0.0042 0.0013 EPA-8260B ND 1 n-Butylbenzene ND mg/kg 0.0042 0.0012 EPA-8260B ND 1 sec-Butylbenzene ND mg/kg 0.0042 0.0010 EPA-8260B ND 1 tert-Butylbenzene ND mg/kg 0.0042 0.0010 EPA-8260B ND 1 Carbon tetrachloride ND mg/kg 0.0042 0.00092 EPA-8260B ND 1 Chlorobenzene ND mg/kg 0.0042 0.0011 EPA-8260B ND 1 Chloroethane ND mg/kg 0.0042 0.0012 EPA-8260B ND 1 Chloroform ND mg/kg 0.0042 0.00052 EPA-8260B ND 1 Chloromethane ND mg/kg 0.0042 0.0012 EPA-8260B ND 1 2-Chlorotoluene ND mg/kg 0.0042 0.0015 EPA-8260B ND 1 4-Chlorotoluene ND mg/kg 0.0042 0.0012 EPA-8260B ND 1 Dibromochloromethane ND mg/kg 0.0042 0.00082 EPA-8260B ND 1 1,2-Dibromo-3-chloropropane ND mg/kg 0.0042 0.0014 EPA-8260B ND 1 1,2-Dibromoethane ND mg/kg 0.0042 0.00083 EPA-8260B ND 1 Dibromomethane ND mg/kg 0.0042 0.0015 EPA-8260B ND 1 1,2-Dichlorobenzene ND mg/kg 0.0042 0.00068 EPA-8260B ND 1 1,3-Dichlorobenzene ND mg/kg 0.0042 0.0012 EPA-8260B ND 1 1,4-Dichlorobenzene ND mg/kg 0.0042 0.0012 EPA-8260B ND 1 Dichlorodifluoromethane ND mg/kg 0.0042 0.0011 EPA-8260B ND 1 1,1-Dichloroethane ND mg/kg 0.0042 0.0012 EPA-8260B ND 1 1,2-Dichloroethane ND mg/kg 0.0042 0.00071 EPA-8260B ND 1 1,1-Dichloroethene ND mg/kg 0.0042 0.0010 EPA-8260B ND 1 cis-1,2-Dichloroethene ND mg/kg 0.0042 0.0011 EPA-8260B ND 1 trans-1,2-Dichloroethene ND mg/kg 0.0042 0.0012 EPA-8260B ND 1 1,2-Dichloropropane ND mg/kg 0.0042 0.00068 EPA-8260B ND 1 1,3-Dichloropropane ND mg/kg 0.0042 0.00092 EPA-8260B ND 1 2,2-Dichloropropane ND mg/kg 0.0042 0.0011 EPA-8260B ND 1 1,1-Dichloropropene ND mg/kg 0.0042 0.0010 EPA-8260B ND 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 14 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-03 Client Sample Name: SV-2-5, 10/29/2018 8:32:00AM MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # cis-1,3-Dichloropropene ND mg/kg 0.0042 0.00092 EPA-8260B ND 1 trans-1,3-Dichloropropene ND mg/kg 0.0042 0.0010 EPA-8260B ND 1 Ethylbenzene ND mg/kg 0.0042 0.0012 EPA-8260B ND 1 Hexachlorobutadiene ND mg/kg 0.0042 0.0014 EPA-8260B ND 1 Isopropylbenzene ND mg/kg 0.0042 0.0011 EPA-8260B ND 1 p-Isopropyltoluene ND mg/kg 0.0042 0.0011 EPA-8260B ND 1 Methylene chloride ND mg/kg 0.0083 0.0020 EPA-8260B ND 1 Methyl t-butyl ether ND mg/kg 0.0042 0.00042 EPA-8260B ND 1 Naphthalene ND mg/kg 0.0042 0.0012 EPA-8260B ND 1 n-Propylbenzene ND mg/kg 0.0042 0.0011 EPA-8260B ND 1 Styrene ND mg/kg 0.0042 0.0012 EPA-8260B ND 1 1,1,1,2-Tetrachloroethane ND mg/kg 0.0042 0.00092 EPA-8260B ND 1 1,1,2,2-Tetrachloroethane ND mg/kg 0.0042 0.00092 EPA-8260B ND 1 Tetrachloroethene ND mg/kg 0.0042 0.0011 EPA-8260B ND 1 Toluene ND mg/kg 0.0042 0.0010 EPA-8260B ND 1 1,2,3-Trichlorobenzene ND mg/kg 0.0042 0.0018 EPA-8260B ND 1 1,2,4-Trichlorobenzene ND mg/kg 0.0042 0.0017 EPA-8260B ND 1 1,1,1-Trichloroethane ND mg/kg 0.0042 0.00092 EPA-8260B ND 1 1,1,2-Trichloroethane ND mg/kg 0.0042 0.00064 EPA-8260B ND 1 Trichloroethene ND mg/kg 0.0042 0.00092 EPA-8260B ND 1 Trichlorofluoromethane ND mg/kg 0.0042 0.00092 EPA-8260B ND 1 1,2,3-Trichloropropane ND mg/kg 0.0042 0.0013 EPA-8260B ND 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND mg/kg 0.0042 0.0011 EPA-8260B ND 1 1,2,4-Trimethylbenzene ND mg/kg 0.0042 0.0011 EPA-8260B ND 1 1,3,5-Trimethylbenzene ND mg/kg 0.0042 0.0012 EPA-8260B ND 1 Vinyl chloride ND mg/kg 0.0042 0.0013 EPA-8260B ND 1 Total Xylenes ND mg/kg 0.0083 0.0028 EPA-8260B ND 1 p- & m-Xylenes ND mg/kg 0.0042 0.0018 EPA-8260B ND 1 o-Xylene ND mg/kg 0.0042 0.0010 EPA-8260B ND 1 1,2-Dichloroethane-d4 (Surrogate) 118 % 70 - 121 (LCL - UCL) EPA-8260B 1 Toluene-d8 (Surrogate) 99.8 % 81 - 117 (LCL - UCL) EPA-8260B 1 4-Bromofluorobenzene (Surrogate) 109 % 74 - 121 (LCL - UCL) EPA-8260B 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 15 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-03 Client Sample Name: SV-2-5, 10/29/2018 8:32:00AM Run QC Run # Method Prep Date Date/Time Analyst Instrument Dilution Batch ID 1 EPA-8260B 11/02/18 12:00 11/02/18 18:12 ADC MS-V2 0.833 B029093

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 16 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-04 Client Sample Name: SV-2-10, 10/29/2018 9:44:00AM MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Benzene ND mg/kg 0.0033 0.00087 EPA-8260B ND 1 Bromobenzene ND mg/kg 0.0033 0.00087 EPA-8260B ND 1 Bromochloromethane ND mg/kg 0.0033 0.00061 EPA-8260B ND 1 Bromodichloromethane ND mg/kg 0.0033 0.00056 EPA-8260B ND 1 Bromoform ND mg/kg 0.0033 0.0010 EPA-8260B ND 1 Bromomethane ND mg/kg 0.0033 0.0011 EPA-8260B ND 1 n-Butylbenzene ND mg/kg 0.0033 0.0010 EPA-8260B ND 1 sec-Butylbenzene ND mg/kg 0.0033 0.00080 EPA-8260B ND 1 tert-Butylbenzene ND mg/kg 0.0033 0.00080 EPA-8260B ND 1 Carbon tetrachloride ND mg/kg 0.0033 0.00073 EPA-8260B ND 1 Chlorobenzene ND mg/kg 0.0033 0.00087 EPA-8260B ND 1 Chloroethane ND mg/kg 0.0033 0.00093 EPA-8260B ND 1 Chloroform ND mg/kg 0.0033 0.00042 EPA-8260B ND 1 Chloromethane ND mg/kg 0.0033 0.00093 EPA-8260B ND 1 2-Chlorotoluene ND mg/kg 0.0033 0.0012 EPA-8260B ND 1 4-Chlorotoluene ND mg/kg 0.0033 0.00093 EPA-8260B ND 1 Dibromochloromethane ND mg/kg 0.0033 0.00066 EPA-8260B ND 1 1,2-Dibromo-3-chloropropane ND mg/kg 0.0033 0.0011 EPA-8260B ND 1 1,2-Dibromoethane ND mg/kg 0.0033 0.00067 EPA-8260B ND 1 Dibromomethane ND mg/kg 0.0033 0.0012 EPA-8260B ND 1 1,2-Dichlorobenzene ND mg/kg 0.0033 0.00054 EPA-8260B ND 1 1,3-Dichlorobenzene ND mg/kg 0.0033 0.00093 EPA-8260B ND 1 1,4-Dichlorobenzene ND mg/kg 0.0033 0.0010 EPA-8260B ND 1 Dichlorodifluoromethane ND mg/kg 0.0033 0.00087 EPA-8260B ND 1 1,1-Dichloroethane ND mg/kg 0.0033 0.00093 EPA-8260B ND 1 1,2-Dichloroethane ND mg/kg 0.0033 0.00057 EPA-8260B ND 1 1,1-Dichloroethene ND mg/kg 0.0033 0.00080 EPA-8260B ND 1 cis-1,2-Dichloroethene ND mg/kg 0.0033 0.00087 EPA-8260B ND 1 trans-1,2-Dichloroethene ND mg/kg 0.0033 0.00093 EPA-8260B ND 1 1,2-Dichloropropane ND mg/kg 0.0033 0.00054 EPA-8260B ND 1 1,3-Dichloropropane ND mg/kg 0.0033 0.00073 EPA-8260B ND 1 2,2-Dichloropropane ND mg/kg 0.0033 0.00087 EPA-8260B ND 1 1,1-Dichloropropene ND mg/kg 0.0033 0.00080 EPA-8260B ND 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 17 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-04 Client Sample Name: SV-2-10, 10/29/2018 9:44:00AM MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # cis-1,3-Dichloropropene ND mg/kg 0.0033 0.00073 EPA-8260B ND 1 trans-1,3-Dichloropropene ND mg/kg 0.0033 0.00080 EPA-8260B ND 1 Ethylbenzene ND mg/kg 0.0033 0.0010 EPA-8260B ND 1 Hexachlorobutadiene ND mg/kg 0.0033 0.0011 EPA-8260B ND 1 Isopropylbenzene ND mg/kg 0.0033 0.00087 EPA-8260B ND 1 p-Isopropyltoluene ND mg/kg 0.0033 0.00087 EPA-8260B ND 1 Methylene chloride ND mg/kg 0.0067 0.0016 EPA-8260B ND 1 Methyl t-butyl ether ND mg/kg 0.0033 0.00033 EPA-8260B ND 1 Naphthalene ND mg/kg 0.0033 0.00093 EPA-8260B ND 1 n-Propylbenzene ND mg/kg 0.0033 0.00087 EPA-8260B ND 1 Styrene ND mg/kg 0.0033 0.00093 EPA-8260B ND 1 1,1,1,2-Tetrachloroethane ND mg/kg 0.0033 0.00073 EPA-8260B ND 1 1,1,2,2-Tetrachloroethane ND mg/kg 0.0033 0.00073 EPA-8260B ND 1 Tetrachloroethene ND mg/kg 0.0033 0.00087 EPA-8260B ND 1 Toluene ND mg/kg 0.0033 0.00080 EPA-8260B ND 1 1,2,3-Trichlorobenzene ND mg/kg 0.0033 0.0014 EPA-8260B ND 1 1,2,4-Trichlorobenzene ND mg/kg 0.0033 0.0013 EPA-8260B ND 1 1,1,1-Trichloroethane ND mg/kg 0.0033 0.00073 EPA-8260B ND 1 1,1,2-Trichloroethane ND mg/kg 0.0033 0.00051 EPA-8260B ND 1 Trichloroethene ND mg/kg 0.0033 0.00073 EPA-8260B ND 1 Trichlorofluoromethane ND mg/kg 0.0033 0.00073 EPA-8260B ND 1 1,2,3-Trichloropropane ND mg/kg 0.0033 0.0011 EPA-8260B ND 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND mg/kg 0.0033 0.00087 EPA-8260B ND 1 1,2,4-Trimethylbenzene ND mg/kg 0.0033 0.00087 EPA-8260B ND 1 1,3,5-Trimethylbenzene ND mg/kg 0.0033 0.0010 EPA-8260B ND 1 Vinyl chloride ND mg/kg 0.0033 0.0011 EPA-8260B ND 1 Total Xylenes ND mg/kg 0.0067 0.0023 EPA-8260B ND 1 p- & m-Xylenes ND mg/kg 0.0033 0.0015 EPA-8260B ND 1 o-Xylene ND mg/kg 0.0033 0.00080 EPA-8260B ND 1 1,2-Dichloroethane-d4 (Surrogate) 114 % 70 - 121 (LCL - UCL) EPA-8260B 1 Toluene-d8 (Surrogate) 99.2 % 81 - 117 (LCL - UCL) EPA-8260B 1 4-Bromofluorobenzene (Surrogate) 105 % 74 - 121 (LCL - UCL) EPA-8260B 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 18 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-04 Client Sample Name: SV-2-10, 10/29/2018 9:44:00AM Run QC Run # Method Prep Date Date/Time Analyst Instrument Dilution Batch ID 1 EPA-8260B 11/02/18 12:00 11/02/18 18:35 ADC MS-V2 0.666 B029093

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 19 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-05 Client Sample Name: SV-3-5, 10/29/2018 11:00:00AM MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Benzene ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 Bromobenzene ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 Bromochloromethane ND mg/kg 0.0050 0.00092 EPA-8260B ND 1 Bromodichloromethane ND mg/kg 0.0050 0.00084 EPA-8260B ND 1 Bromoform ND mg/kg 0.0050 0.0015 EPA-8260B ND 1 Bromomethane ND mg/kg 0.0050 0.0016 EPA-8260B ND 1 n-Butylbenzene ND mg/kg 0.0050 0.0015 EPA-8260B ND 1 sec-Butylbenzene ND mg/kg 0.0050 0.0012 EPA-8260B ND 1 tert-Butylbenzene ND mg/kg 0.0050 0.0012 EPA-8260B ND 1 Carbon tetrachloride ND mg/kg 0.0050 0.0011 EPA-8260B ND 1 Chlorobenzene ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 Chloroethane ND mg/kg 0.0050 0.0014 EPA-8260B ND 1 Chloroform ND mg/kg 0.0050 0.00063 EPA-8260B ND 1 Chloromethane ND mg/kg 0.0050 0.0014 EPA-8260B ND 1 2-Chlorotoluene ND mg/kg 0.0050 0.0018 EPA-8260B ND 1 4-Chlorotoluene ND mg/kg 0.0050 0.0014 EPA-8260B ND 1 Dibromochloromethane ND mg/kg 0.0050 0.00099 EPA-8260B ND 1 1,2-Dibromo-3-chloropropane ND mg/kg 0.0050 0.0017 EPA-8260B ND 1 1,2-Dibromoethane ND mg/kg 0.0050 0.0010 EPA-8260B ND 1 Dibromomethane ND mg/kg 0.0050 0.0018 EPA-8260B ND 1 1,2-Dichlorobenzene ND mg/kg 0.0050 0.00081 EPA-8260B ND 1 1,3-Dichlorobenzene ND mg/kg 0.0050 0.0014 EPA-8260B ND 1 1,4-Dichlorobenzene ND mg/kg 0.0050 0.0015 EPA-8260B ND 1 Dichlorodifluoromethane ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 1,1-Dichloroethane ND mg/kg 0.0050 0.0014 EPA-8260B ND 1 1,2-Dichloroethane ND mg/kg 0.0050 0.00085 EPA-8260B ND 1 1,1-Dichloroethene ND mg/kg 0.0050 0.0012 EPA-8260B ND 1 cis-1,2-Dichloroethene ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 trans-1,2-Dichloroethene ND mg/kg 0.0050 0.0014 EPA-8260B ND 1 1,2-Dichloropropane ND mg/kg 0.0050 0.00081 EPA-8260B ND 1 1,3-Dichloropropane ND mg/kg 0.0050 0.0011 EPA-8260B ND 1 2,2-Dichloropropane ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 1,1-Dichloropropene ND mg/kg 0.0050 0.0012 EPA-8260B ND 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 20 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-05 Client Sample Name: SV-3-5, 10/29/2018 11:00:00AM MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # cis-1,3-Dichloropropene ND mg/kg 0.0050 0.0011 EPA-8260B ND 1 trans-1,3-Dichloropropene ND mg/kg 0.0050 0.0012 EPA-8260B ND 1 Ethylbenzene ND mg/kg 0.0050 0.0015 EPA-8260B ND 1 Hexachlorobutadiene ND mg/kg 0.0050 0.0017 EPA-8260B ND 1 Isopropylbenzene ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 p-Isopropyltoluene ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 Methylene chloride ND mg/kg 0.010 0.0024 EPA-8260B ND 1 Methyl t-butyl ether ND mg/kg 0.0050 0.00050 EPA-8260B ND 1 Naphthalene ND mg/kg 0.0050 0.0014 EPA-8260B ND 1 n-Propylbenzene ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 Styrene ND mg/kg 0.0050 0.0014 EPA-8260B ND 1 1,1,1,2-Tetrachloroethane ND mg/kg 0.0050 0.0011 EPA-8260B ND 1 1,1,2,2-Tetrachloroethane ND mg/kg 0.0050 0.0011 EPA-8260B ND 1 Tetrachloroethene ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 Toluene ND mg/kg 0.0050 0.0012 EPA-8260B ND 1 1,2,3-Trichlorobenzene ND mg/kg 0.0050 0.0021 EPA-8260B ND 1 1,2,4-Trichlorobenzene ND mg/kg 0.0050 0.0020 EPA-8260B ND 1 1,1,1-Trichloroethane ND mg/kg 0.0050 0.0011 EPA-8260B ND 1 1,1,2-Trichloroethane ND mg/kg 0.0050 0.00077 EPA-8260B ND 1 Trichloroethene ND mg/kg 0.0050 0.0011 EPA-8260B ND 1 Trichlorofluoromethane ND mg/kg 0.0050 0.0011 EPA-8260B ND 1 1,2,3-Trichloropropane ND mg/kg 0.0050 0.0016 EPA-8260B ND 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 1,2,4-Trimethylbenzene ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 1,3,5-Trimethylbenzene ND mg/kg 0.0050 0.0015 EPA-8260B ND 1 Vinyl chloride ND mg/kg 0.0050 0.0016 EPA-8260B ND 1 Total Xylenes ND mg/kg 0.010 0.0034 EPA-8260B ND 1 p- & m-Xylenes ND mg/kg 0.0050 0.0022 EPA-8260B ND 1 o-Xylene ND mg/kg 0.0050 0.0012 EPA-8260B ND 1 1,2-Dichloroethane-d4 (Surrogate) 116 % 70 - 121 (LCL - UCL) EPA-8260B 1 Toluene-d8 (Surrogate) 89.0 % 81 - 117 (LCL - UCL) EPA-8260B 1 4-Bromofluorobenzene (Surrogate) 105 % 74 - 121 (LCL - UCL) EPA-8260B 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 21 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-05 Client Sample Name: SV-3-5, 10/29/2018 11:00:00AM Run QC Run # Method Prep Date Date/Time Analyst Instrument Dilution Batch ID 1 EPA-8260B 11/02/18 12:00 11/02/18 18:57 ADC MS-V2 0.916 B029093

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 22 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-06 Client Sample Name: SV-3-15, 10/29/2018 11:16:00AM MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Benzene ND mg/kg 0.0033 0.00087 EPA-8260B ND 1 Bromobenzene ND mg/kg 0.0033 0.00087 EPA-8260B ND 1 Bromochloromethane ND mg/kg 0.0033 0.00062 EPA-8260B ND 1 Bromodichloromethane ND mg/kg 0.0033 0.00056 EPA-8260B ND 1 Bromoform ND mg/kg 0.0033 0.0010 EPA-8260B ND 1 Bromomethane ND mg/kg 0.0033 0.0011 EPA-8260B ND 1 n-Butylbenzene ND mg/kg 0.0033 0.0010 EPA-8260B ND 1 sec-Butylbenzene ND mg/kg 0.0033 0.00080 EPA-8260B ND 1 tert-Butylbenzene ND mg/kg 0.0033 0.00080 EPA-8260B ND 1 Carbon tetrachloride ND mg/kg 0.0033 0.00074 EPA-8260B ND 1 Chlorobenzene ND mg/kg 0.0033 0.00087 EPA-8260B ND 1 Chloroethane ND mg/kg 0.0033 0.00094 EPA-8260B ND 1 Chloroform ND mg/kg 0.0033 0.00042 EPA-8260B ND 1 Chloromethane ND mg/kg 0.0033 0.00094 EPA-8260B ND 1 2-Chlorotoluene ND mg/kg 0.0033 0.0012 EPA-8260B ND 1 4-Chlorotoluene ND mg/kg 0.0033 0.00094 EPA-8260B ND 1 Dibromochloromethane ND mg/kg 0.0033 0.00066 EPA-8260B ND 1 1,2-Dibromo-3-chloropropane ND mg/kg 0.0033 0.0011 EPA-8260B ND 1 1,2-Dibromoethane ND mg/kg 0.0033 0.00067 EPA-8260B ND 1 Dibromomethane ND mg/kg 0.0033 0.0012 EPA-8260B ND 1 1,2-Dichlorobenzene ND mg/kg 0.0033 0.00054 EPA-8260B ND 1 1,3-Dichlorobenzene ND mg/kg 0.0033 0.00094 EPA-8260B ND 1 1,4-Dichlorobenzene ND mg/kg 0.0033 0.0010 EPA-8260B ND 1 Dichlorodifluoromethane ND mg/kg 0.0033 0.00087 EPA-8260B ND 1 1,1-Dichloroethane ND mg/kg 0.0033 0.00094 EPA-8260B ND 1 1,2-Dichloroethane ND mg/kg 0.0033 0.00057 EPA-8260B ND 1 1,1-Dichloroethene ND mg/kg 0.0033 0.00080 EPA-8260B ND 1 cis-1,2-Dichloroethene ND mg/kg 0.0033 0.00087 EPA-8260B ND 1 trans-1,2-Dichloroethene ND mg/kg 0.0033 0.00094 EPA-8260B ND 1 1,2-Dichloropropane ND mg/kg 0.0033 0.00054 EPA-8260B ND 1 1,3-Dichloropropane ND mg/kg 0.0033 0.00074 EPA-8260B ND 1 2,2-Dichloropropane ND mg/kg 0.0033 0.00087 EPA-8260B ND 1 1,1-Dichloropropene ND mg/kg 0.0033 0.00080 EPA-8260B ND 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 23 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-06 Client Sample Name: SV-3-15, 10/29/2018 11:16:00AM MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # cis-1,3-Dichloropropene ND mg/kg 0.0033 0.00074 EPA-8260B ND 1 trans-1,3-Dichloropropene ND mg/kg 0.0033 0.00080 EPA-8260B ND 1 Ethylbenzene ND mg/kg 0.0033 0.0010 EPA-8260B ND 1 Hexachlorobutadiene ND mg/kg 0.0033 0.0011 EPA-8260B ND 1 Isopropylbenzene ND mg/kg 0.0033 0.00087 EPA-8260B ND 1 p-Isopropyltoluene ND mg/kg 0.0033 0.00087 EPA-8260B ND 1 Methylene chloride ND mg/kg 0.0067 0.0016 EPA-8260B ND 1 Methyl t-butyl ether ND mg/kg 0.0033 0.00033 EPA-8260B ND 1 Naphthalene ND mg/kg 0.0033 0.00094 EPA-8260B ND 1 n-Propylbenzene ND mg/kg 0.0033 0.00087 EPA-8260B ND 1 Styrene ND mg/kg 0.0033 0.00094 EPA-8260B ND 1 1,1,1,2-Tetrachloroethane ND mg/kg 0.0033 0.00074 EPA-8260B ND 1 1,1,2,2-Tetrachloroethane ND mg/kg 0.0033 0.00074 EPA-8260B ND 1 Tetrachloroethene 0.0045 mg/kg 0.0033 0.00087 EPA-8260B ND 1 Toluene ND mg/kg 0.0033 0.00080 EPA-8260B ND 1 1,2,3-Trichlorobenzene ND mg/kg 0.0033 0.0014 EPA-8260B ND 1 1,2,4-Trichlorobenzene ND mg/kg 0.0033 0.0013 EPA-8260B ND 1 1,1,1-Trichloroethane ND mg/kg 0.0033 0.00074 EPA-8260B ND 1 1,1,2-Trichloroethane ND mg/kg 0.0033 0.00052 EPA-8260B ND 1 Trichloroethene ND mg/kg 0.0033 0.00074 EPA-8260B ND 1 Trichlorofluoromethane ND mg/kg 0.0033 0.00074 EPA-8260B ND 1 1,2,3-Trichloropropane ND mg/kg 0.0033 0.0011 EPA-8260B ND 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND mg/kg 0.0033 0.00087 EPA-8260B ND 1 1,2,4-Trimethylbenzene ND mg/kg 0.0033 0.00087 EPA-8260B ND 1 1,3,5-Trimethylbenzene ND mg/kg 0.0033 0.0010 EPA-8260B ND 1 Vinyl chloride ND mg/kg 0.0033 0.0011 EPA-8260B ND 1 Total Xylenes ND mg/kg 0.0067 0.0023 EPA-8260B ND 1 p- & m-Xylenes ND mg/kg 0.0033 0.0015 EPA-8260B ND 1 o-Xylene ND mg/kg 0.0033 0.00080 EPA-8260B ND 1 1,2-Dichloroethane-d4 (Surrogate) 113 % 70 - 121 (LCL - UCL) EPA-8260B 1 Toluene-d8 (Surrogate) 97.9 % 81 - 117 (LCL - UCL) EPA-8260B 1 4-Bromofluorobenzene (Surrogate) 98.4 % 74 - 121 (LCL - UCL) EPA-8260B 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 24 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-06 Client Sample Name: SV-3-15, 10/29/2018 11:16:00AM Run QC Run # Method Prep Date Date/Time Analyst Instrument Dilution Batch ID 1 EPA-8260B 11/02/18 12:00 11/02/18 19:20 ADC MS-V2 0.669 B029093

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 25 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-07 Client Sample Name: SV-4-5, 10/29/2018 11:46:00AM MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Benzene ND mg/kg 0.0042 0.0011 EPA-8260B ND 1 Bromobenzene ND mg/kg 0.0042 0.0011 EPA-8260B ND 1 Bromochloromethane ND mg/kg 0.0042 0.00077 EPA-8260B ND 1 Bromodichloromethane ND mg/kg 0.0042 0.00070 EPA-8260B ND 1 Bromoform ND mg/kg 0.0042 0.0012 EPA-8260B ND 1 Bromomethane ND mg/kg 0.0042 0.0013 EPA-8260B ND 1 n-Butylbenzene ND mg/kg 0.0042 0.0012 EPA-8260B ND 1 sec-Butylbenzene ND mg/kg 0.0042 0.0010 EPA-8260B ND 1 tert-Butylbenzene ND mg/kg 0.0042 0.0010 EPA-8260B ND 1 Carbon tetrachloride ND mg/kg 0.0042 0.00092 EPA-8260B ND 1 Chlorobenzene ND mg/kg 0.0042 0.0011 EPA-8260B ND 1 Chloroethane ND mg/kg 0.0042 0.0012 EPA-8260B ND 1 Chloroform ND mg/kg 0.0042 0.00052 EPA-8260B ND 1 Chloromethane ND mg/kg 0.0042 0.0012 EPA-8260B ND 1 2-Chlorotoluene ND mg/kg 0.0042 0.0015 EPA-8260B ND 1 4-Chlorotoluene ND mg/kg 0.0042 0.0012 EPA-8260B ND 1 Dibromochloromethane ND mg/kg 0.0042 0.00082 EPA-8260B ND 1 1,2-Dibromo-3-chloropropane ND mg/kg 0.0042 0.0014 EPA-8260B ND 1 1,2-Dibromoethane ND mg/kg 0.0042 0.00083 EPA-8260B ND 1 Dibromomethane ND mg/kg 0.0042 0.0015 EPA-8260B ND 1 1,2-Dichlorobenzene ND mg/kg 0.0042 0.00067 EPA-8260B ND 1 1,3-Dichlorobenzene ND mg/kg 0.0042 0.0012 EPA-8260B ND 1 1,4-Dichlorobenzene ND mg/kg 0.0042 0.0012 EPA-8260B ND 1 Dichlorodifluoromethane ND mg/kg 0.0042 0.0011 EPA-8260B ND 1 1,1-Dichloroethane ND mg/kg 0.0042 0.0012 EPA-8260B ND 1 1,2-Dichloroethane ND mg/kg 0.0042 0.00071 EPA-8260B ND 1 1,1-Dichloroethene ND mg/kg 0.0042 0.0010 EPA-8260B ND 1 cis-1,2-Dichloroethene ND mg/kg 0.0042 0.0011 EPA-8260B ND 1 trans-1,2-Dichloroethene ND mg/kg 0.0042 0.0012 EPA-8260B ND 1 1,2-Dichloropropane ND mg/kg 0.0042 0.00067 EPA-8260B ND 1 1,3-Dichloropropane ND mg/kg 0.0042 0.00092 EPA-8260B ND 1 2,2-Dichloropropane ND mg/kg 0.0042 0.0011 EPA-8260B ND 1 1,1-Dichloropropene ND mg/kg 0.0042 0.0010 EPA-8260B ND 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 26 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-07 Client Sample Name: SV-4-5, 10/29/2018 11:46:00AM MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # cis-1,3-Dichloropropene ND mg/kg 0.0042 0.00092 EPA-8260B ND 1 trans-1,3-Dichloropropene ND mg/kg 0.0042 0.0010 EPA-8260B ND 1 Ethylbenzene ND mg/kg 0.0042 0.0012 EPA-8260B ND 1 Hexachlorobutadiene ND mg/kg 0.0042 0.0014 EPA-8260B ND 1 Isopropylbenzene ND mg/kg 0.0042 0.0011 EPA-8260B ND 1 p-Isopropyltoluene ND mg/kg 0.0042 0.0011 EPA-8260B ND 1 Methylene chloride ND mg/kg 0.0083 0.0020 EPA-8260B ND 1 Methyl t-butyl ether ND mg/kg 0.0042 0.00042 EPA-8260B ND 1 Naphthalene ND mg/kg 0.0042 0.0012 EPA-8260B ND 1 n-Propylbenzene ND mg/kg 0.0042 0.0011 EPA-8260B ND 1 Styrene ND mg/kg 0.0042 0.0012 EPA-8260B ND 1 1,1,1,2-Tetrachloroethane ND mg/kg 0.0042 0.00092 EPA-8260B ND 1 1,1,2,2-Tetrachloroethane ND mg/kg 0.0042 0.00092 EPA-8260B ND 1 Tetrachloroethene 0.0043 mg/kg 0.0042 0.0011 EPA-8260B ND 1 Toluene ND mg/kg 0.0042 0.0010 EPA-8260B ND 1 1,2,3-Trichlorobenzene ND mg/kg 0.0042 0.0017 EPA-8260B ND 1 1,2,4-Trichlorobenzene ND mg/kg 0.0042 0.0017 EPA-8260B ND 1 1,1,1-Trichloroethane ND mg/kg 0.0042 0.00092 EPA-8260B ND 1 1,1,2-Trichloroethane ND mg/kg 0.0042 0.00064 EPA-8260B ND 1 Trichloroethene ND mg/kg 0.0042 0.00092 EPA-8260B ND 1 Trichlorofluoromethane ND mg/kg 0.0042 0.00092 EPA-8260B ND 1 1,2,3-Trichloropropane ND mg/kg 0.0042 0.0013 EPA-8260B ND 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND mg/kg 0.0042 0.0011 EPA-8260B ND 1 1,2,4-Trimethylbenzene ND mg/kg 0.0042 0.0011 EPA-8260B ND 1 1,3,5-Trimethylbenzene ND mg/kg 0.0042 0.0012 EPA-8260B ND 1 Vinyl chloride ND mg/kg 0.0042 0.0013 EPA-8260B ND 1 Total Xylenes ND mg/kg 0.0083 0.0028 EPA-8260B ND 1 p- & m-Xylenes ND mg/kg 0.0042 0.0018 EPA-8260B ND 1 o-Xylene ND mg/kg 0.0042 0.0010 EPA-8260B ND 1 1,2-Dichloroethane-d4 (Surrogate) 116 % 70 - 121 (LCL - UCL) EPA-8260B 1 Toluene-d8 (Surrogate) 97.2 % 81 - 117 (LCL - UCL) EPA-8260B 1 4-Bromofluorobenzene (Surrogate) 99.2 % 74 - 121 (LCL - UCL) EPA-8260B 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 27 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-07 Client Sample Name: SV-4-5, 10/29/2018 11:46:00AM Run QC Run # Method Prep Date Date/Time Analyst Instrument Dilution Batch ID 1 EPA-8260B 11/02/18 12:00 11/02/18 19:42 ADC MS-V2 0.832 B029093

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 28 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-08 Client Sample Name: DUP-1, 10/29/2018 11:46:00AM MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Benzene ND mg/kg 0.0038 0.00099 EPA-8260B ND 1 Bromobenzene ND mg/kg 0.0038 0.00099 EPA-8260B ND 1 Bromochloromethane ND mg/kg 0.0038 0.00070 EPA-8260B ND 1 Bromodichloromethane ND mg/kg 0.0038 0.00064 EPA-8260B ND 1 Bromoform ND mg/kg 0.0038 0.0011 EPA-8260B ND 1 Bromomethane ND mg/kg 0.0038 0.0012 EPA-8260B ND 1 n-Butylbenzene ND mg/kg 0.0038 0.0011 EPA-8260B ND 1 sec-Butylbenzene ND mg/kg 0.0038 0.00091 EPA-8260B ND 1 tert-Butylbenzene ND mg/kg 0.0038 0.00091 EPA-8260B ND 1 Carbon tetrachloride ND mg/kg 0.0038 0.00083 EPA-8260B ND 1 Chlorobenzene ND mg/kg 0.0038 0.00099 EPA-8260B ND 1 Chloroethane ND mg/kg 0.0038 0.0011 EPA-8260B ND 1 Chloroform ND mg/kg 0.0038 0.00048 EPA-8260B ND 1 Chloromethane ND mg/kg 0.0038 0.0011 EPA-8260B ND 1 2-Chlorotoluene ND mg/kg 0.0038 0.0014 EPA-8260B ND 1 4-Chlorotoluene ND mg/kg 0.0038 0.0011 EPA-8260B ND 1 Dibromochloromethane ND mg/kg 0.0038 0.00075 EPA-8260B ND 1 1,2-Dibromo-3-chloropropane ND mg/kg 0.0038 0.0013 EPA-8260B ND 1 1,2-Dibromoethane ND mg/kg 0.0038 0.00076 EPA-8260B ND 1 Dibromomethane ND mg/kg 0.0038 0.0014 EPA-8260B ND 1 1,2-Dichlorobenzene ND mg/kg 0.0038 0.00061 EPA-8260B ND 1 1,3-Dichlorobenzene ND mg/kg 0.0038 0.0011 EPA-8260B ND 1 1,4-Dichlorobenzene ND mg/kg 0.0038 0.0011 EPA-8260B ND 1 Dichlorodifluoromethane ND mg/kg 0.0038 0.00099 EPA-8260B ND 1 1,1-Dichloroethane ND mg/kg 0.0038 0.0011 EPA-8260B ND 1 1,2-Dichloroethane ND mg/kg 0.0038 0.00064 EPA-8260B ND 1 1,1-Dichloroethene ND mg/kg 0.0038 0.00091 EPA-8260B ND 1 cis-1,2-Dichloroethene ND mg/kg 0.0038 0.00099 EPA-8260B ND 1 trans-1,2-Dichloroethene ND mg/kg 0.0038 0.0011 EPA-8260B ND 1 1,2-Dichloropropane ND mg/kg 0.0038 0.00061 EPA-8260B ND 1 1,3-Dichloropropane ND mg/kg 0.0038 0.00083 EPA-8260B ND 1 2,2-Dichloropropane ND mg/kg 0.0038 0.00099 EPA-8260B ND 1 1,1-Dichloropropene ND mg/kg 0.0038 0.00091 EPA-8260B ND 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 29 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-08 Client Sample Name: DUP-1, 10/29/2018 11:46:00AM MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # cis-1,3-Dichloropropene ND mg/kg 0.0038 0.00083 EPA-8260B ND 1 trans-1,3-Dichloropropene ND mg/kg 0.0038 0.00091 EPA-8260B ND 1 Ethylbenzene ND mg/kg 0.0038 0.0011 EPA-8260B ND 1 Hexachlorobutadiene ND mg/kg 0.0038 0.0013 EPA-8260B ND 1 Isopropylbenzene ND mg/kg 0.0038 0.00099 EPA-8260B ND 1 p-Isopropyltoluene ND mg/kg 0.0038 0.00099 EPA-8260B ND 1 Methylene chloride ND mg/kg 0.0076 0.0018 EPA-8260B ND 1 Methyl t-butyl ether ND mg/kg 0.0038 0.00038 EPA-8260B ND 1 Naphthalene ND mg/kg 0.0038 0.0011 EPA-8260B ND 1 n-Propylbenzene ND mg/kg 0.0038 0.00099 EPA-8260B ND 1 Styrene ND mg/kg 0.0038 0.0011 EPA-8260B ND 1 1,1,1,2-Tetrachloroethane ND mg/kg 0.0038 0.00083 EPA-8260B ND 1 1,1,2,2-Tetrachloroethane ND mg/kg 0.0038 0.00083 EPA-8260B ND 1 Tetrachloroethene 0.0041 mg/kg 0.0038 0.00099 EPA-8260B ND 1 Toluene ND mg/kg 0.0038 0.00091 EPA-8260B ND 1 1,2,3-Trichlorobenzene ND mg/kg 0.0038 0.0016 EPA-8260B ND 1 1,2,4-Trichlorobenzene ND mg/kg 0.0038 0.0015 EPA-8260B ND 1 1,1,1-Trichloroethane ND mg/kg 0.0038 0.00083 EPA-8260B ND 1 1,1,2-Trichloroethane ND mg/kg 0.0038 0.00058 EPA-8260B ND 1 Trichloroethene ND mg/kg 0.0038 0.00083 EPA-8260B ND 1 Trichlorofluoromethane ND mg/kg 0.0038 0.00083 EPA-8260B ND 1 1,2,3-Trichloropropane ND mg/kg 0.0038 0.0012 EPA-8260B ND 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND mg/kg 0.0038 0.00099 EPA-8260B ND 1 1,2,4-Trimethylbenzene ND mg/kg 0.0038 0.00099 EPA-8260B ND 1 1,3,5-Trimethylbenzene ND mg/kg 0.0038 0.0011 EPA-8260B ND 1 Vinyl chloride ND mg/kg 0.0038 0.0012 EPA-8260B ND 1 Total Xylenes ND mg/kg 0.0076 0.0026 EPA-8260B ND 1 p- & m-Xylenes ND mg/kg 0.0038 0.0017 EPA-8260B ND 1 o-Xylene ND mg/kg 0.0038 0.00091 EPA-8260B ND 1 1,2-Dichloroethane-d4 (Surrogate) 118 % 70 - 121 (LCL - UCL) EPA-8260B 1 Toluene-d8 (Surrogate) 102 % 81 - 117 (LCL - UCL) EPA-8260B 1 4-Bromofluorobenzene (Surrogate) 103 % 74 - 121 (LCL - UCL) EPA-8260B 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 30 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-08 Client Sample Name: DUP-1, 10/29/2018 11:46:00AM Run QC Run # Method Prep Date Date/Time Analyst Instrument Dilution Batch ID 1 EPA-8260B 11/02/18 12:00 11/02/18 20:05 ADC MS-V2 0.759 B029093

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 31 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-09 Client Sample Name: SV-4-15, 10/29/2018 12:11:00PM MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Benzene ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 Bromobenzene ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 Bromochloromethane ND mg/kg 0.0050 0.00092 EPA-8260B ND 1 Bromodichloromethane ND mg/kg 0.0050 0.00084 EPA-8260B ND 1 Bromoform ND mg/kg 0.0050 0.0015 EPA-8260B ND 1 Bromomethane ND mg/kg 0.0050 0.0016 EPA-8260B ND 1 n-Butylbenzene ND mg/kg 0.0050 0.0015 EPA-8260B ND 1 sec-Butylbenzene ND mg/kg 0.0050 0.0012 EPA-8260B ND 1 tert-Butylbenzene ND mg/kg 0.0050 0.0012 EPA-8260B ND 1 Carbon tetrachloride ND mg/kg 0.0050 0.0011 EPA-8260B ND 1 Chlorobenzene ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 Chloroethane ND mg/kg 0.0050 0.0014 EPA-8260B ND 1 Chloroform ND mg/kg 0.0050 0.00063 EPA-8260B ND 1 Chloromethane ND mg/kg 0.0050 0.0014 EPA-8260B ND 1 2-Chlorotoluene ND mg/kg 0.0050 0.0018 EPA-8260B ND 1 4-Chlorotoluene ND mg/kg 0.0050 0.0014 EPA-8260B ND 1 Dibromochloromethane ND mg/kg 0.0050 0.00099 EPA-8260B ND 1 1,2-Dibromo-3-chloropropane ND mg/kg 0.0050 0.0017 EPA-8260B ND 1 1,2-Dibromoethane ND mg/kg 0.0050 0.0010 EPA-8260B ND 1 Dibromomethane ND mg/kg 0.0050 0.0018 EPA-8260B ND 1 1,2-Dichlorobenzene ND mg/kg 0.0050 0.00081 EPA-8260B ND 1 1,3-Dichlorobenzene ND mg/kg 0.0050 0.0014 EPA-8260B ND 1 1,4-Dichlorobenzene ND mg/kg 0.0050 0.0015 EPA-8260B ND 1 Dichlorodifluoromethane ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 1,1-Dichloroethane ND mg/kg 0.0050 0.0014 EPA-8260B ND 1 1,2-Dichloroethane ND mg/kg 0.0050 0.00085 EPA-8260B ND 1 1,1-Dichloroethene ND mg/kg 0.0050 0.0012 EPA-8260B ND 1 cis-1,2-Dichloroethene ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 trans-1,2-Dichloroethene ND mg/kg 0.0050 0.0014 EPA-8260B ND 1 1,2-Dichloropropane ND mg/kg 0.0050 0.00081 EPA-8260B ND 1 1,3-Dichloropropane ND mg/kg 0.0050 0.0011 EPA-8260B ND 1 2,2-Dichloropropane ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 1,1-Dichloropropene ND mg/kg 0.0050 0.0012 EPA-8260B ND 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 32 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-09 Client Sample Name: SV-4-15, 10/29/2018 12:11:00PM MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # cis-1,3-Dichloropropene ND mg/kg 0.0050 0.0011 EPA-8260B ND 1 trans-1,3-Dichloropropene ND mg/kg 0.0050 0.0012 EPA-8260B ND 1 Ethylbenzene ND mg/kg 0.0050 0.0015 EPA-8260B ND 1 Hexachlorobutadiene ND mg/kg 0.0050 0.0017 EPA-8260B ND 1 Isopropylbenzene ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 p-Isopropyltoluene ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 Methylene chloride ND mg/kg 0.010 0.0024 EPA-8260B ND 1 Methyl t-butyl ether ND mg/kg 0.0050 0.00050 EPA-8260B ND 1 Naphthalene ND mg/kg 0.0050 0.0014 EPA-8260B ND 1 n-Propylbenzene ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 Styrene ND mg/kg 0.0050 0.0014 EPA-8260B ND 1 1,1,1,2-Tetrachloroethane ND mg/kg 0.0050 0.0011 EPA-8260B ND 1 1,1,2,2-Tetrachloroethane ND mg/kg 0.0050 0.0011 EPA-8260B ND 1 Tetrachloroethene 0.072 mg/kg 0.0050 0.0013 EPA-8260B ND 1 Toluene ND mg/kg 0.0050 0.0012 EPA-8260B ND 1 1,2,3-Trichlorobenzene ND mg/kg 0.0050 0.0021 EPA-8260B ND 1 1,2,4-Trichlorobenzene ND mg/kg 0.0050 0.0020 EPA-8260B ND 1 1,1,1-Trichloroethane ND mg/kg 0.0050 0.0011 EPA-8260B ND 1 1,1,2-Trichloroethane ND mg/kg 0.0050 0.00077 EPA-8260B ND 1 Trichloroethene ND mg/kg 0.0050 0.0011 EPA-8260B ND 1 Trichlorofluoromethane ND mg/kg 0.0050 0.0011 EPA-8260B ND 1 1,2,3-Trichloropropane ND mg/kg 0.0050 0.0016 EPA-8260B ND 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 1,2,4-Trimethylbenzene ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 1,3,5-Trimethylbenzene ND mg/kg 0.0050 0.0015 EPA-8260B ND 1 Vinyl chloride ND mg/kg 0.0050 0.0016 EPA-8260B ND 1 Total Xylenes ND mg/kg 0.010 0.0034 EPA-8260B ND 1 p- & m-Xylenes ND mg/kg 0.0050 0.0022 EPA-8260B ND 1 o-Xylene ND mg/kg 0.0050 0.0012 EPA-8260B ND 1 1,2-Dichloroethane-d4 (Surrogate) 107 % 70 - 121 (LCL - UCL) EPA-8260B 1 Toluene-d8 (Surrogate) 93.0 % 81 - 117 (LCL - UCL) EPA-8260B 1 4-Bromofluorobenzene (Surrogate) 100 % 74 - 121 (LCL - UCL) EPA-8260B 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 33 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-09 Client Sample Name: SV-4-15, 10/29/2018 12:11:00PM Run QC Run # Method Prep Date Date/Time Analyst Instrument Dilution Batch ID 1 EPA-8260B 11/02/18 12:00 11/02/18 20:27 ADC MS-V2 0.931 B029093

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 34 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-10 Client Sample Name: DUP-2, 10/29/2018 12:11:00PM MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Benzene ND mg/kg 0.0037 0.00095 EPA-8260B ND 1 Bromobenzene ND mg/kg 0.0037 0.00095 EPA-8260B ND 1 Bromochloromethane ND mg/kg 0.0037 0.00067 EPA-8260B ND 1 Bromodichloromethane ND mg/kg 0.0037 0.00061 EPA-8260B ND 1 Bromoform ND mg/kg 0.0037 0.0011 EPA-8260B ND 1 Bromomethane ND mg/kg 0.0037 0.0012 EPA-8260B ND 1 n-Butylbenzene ND mg/kg 0.0037 0.0011 EPA-8260B ND 1 sec-Butylbenzene ND mg/kg 0.0037 0.00088 EPA-8260B ND 1 tert-Butylbenzene ND mg/kg 0.0037 0.00088 EPA-8260B ND 1 Carbon tetrachloride ND mg/kg 0.0037 0.00081 EPA-8260B ND 1 Chlorobenzene ND mg/kg 0.0037 0.00095 EPA-8260B ND 1 Chloroethane ND mg/kg 0.0037 0.0010 EPA-8260B ND 1 Chloroform ND mg/kg 0.0037 0.00046 EPA-8260B ND 1 Chloromethane ND mg/kg 0.0037 0.0010 EPA-8260B ND 1 2-Chlorotoluene ND mg/kg 0.0037 0.0013 EPA-8260B ND 1 4-Chlorotoluene ND mg/kg 0.0037 0.0010 EPA-8260B ND 1 Dibromochloromethane ND mg/kg 0.0037 0.00072 EPA-8260B ND 1 1,2-Dibromo-3-chloropropane ND mg/kg 0.0037 0.0012 EPA-8260B ND 1 1,2-Dibromoethane ND mg/kg 0.0037 0.00073 EPA-8260B ND 1 Dibromomethane ND mg/kg 0.0037 0.0013 EPA-8260B ND 1 1,2-Dichlorobenzene ND mg/kg 0.0037 0.00059 EPA-8260B ND 1 1,3-Dichlorobenzene ND mg/kg 0.0037 0.0010 EPA-8260B ND 1 1,4-Dichlorobenzene ND mg/kg 0.0037 0.0011 EPA-8260B ND 1 Dichlorodifluoromethane ND mg/kg 0.0037 0.00095 EPA-8260B ND 1 1,1-Dichloroethane ND mg/kg 0.0037 0.0010 EPA-8260B ND 1 1,2-Dichloroethane ND mg/kg 0.0037 0.00062 EPA-8260B ND 1 1,1-Dichloroethene ND mg/kg 0.0037 0.00088 EPA-8260B ND 1 cis-1,2-Dichloroethene ND mg/kg 0.0037 0.00095 EPA-8260B ND 1 trans-1,2-Dichloroethene ND mg/kg 0.0037 0.0010 EPA-8260B ND 1 1,2-Dichloropropane ND mg/kg 0.0037 0.00059 EPA-8260B ND 1 1,3-Dichloropropane ND mg/kg 0.0037 0.00081 EPA-8260B ND 1 2,2-Dichloropropane ND mg/kg 0.0037 0.00095 EPA-8260B ND 1 1,1-Dichloropropene ND mg/kg 0.0037 0.00088 EPA-8260B ND 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 35 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-10 Client Sample Name: DUP-2, 10/29/2018 12:11:00PM MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # cis-1,3-Dichloropropene ND mg/kg 0.0037 0.00081 EPA-8260B ND 1 trans-1,3-Dichloropropene ND mg/kg 0.0037 0.00088 EPA-8260B ND 1 Ethylbenzene ND mg/kg 0.0037 0.0011 EPA-8260B ND 1 Hexachlorobutadiene ND mg/kg 0.0037 0.0012 EPA-8260B ND 1 Isopropylbenzene ND mg/kg 0.0037 0.00095 EPA-8260B ND 1 p-Isopropyltoluene ND mg/kg 0.0037 0.00095 EPA-8260B ND 1 Methylene chloride ND mg/kg 0.0073 0.0018 EPA-8260B ND 1 Methyl t-butyl ether ND mg/kg 0.0037 0.00037 EPA-8260B ND 1 Naphthalene ND mg/kg 0.0037 0.0010 EPA-8260B ND 1 n-Propylbenzene ND mg/kg 0.0037 0.00095 EPA-8260B ND 1 Styrene ND mg/kg 0.0037 0.0010 EPA-8260B ND 1 1,1,1,2-Tetrachloroethane ND mg/kg 0.0037 0.00081 EPA-8260B ND 1 1,1,2,2-Tetrachloroethane ND mg/kg 0.0037 0.00081 EPA-8260B ND 1 Tetrachloroethene 0.20 mg/kg 0.0037 0.00095 EPA-8260B ND 1 Toluene ND mg/kg 0.0037 0.00088 EPA-8260B ND 1 1,2,3-Trichlorobenzene ND mg/kg 0.0037 0.0015 EPA-8260B ND 1 1,2,4-Trichlorobenzene ND mg/kg 0.0037 0.0015 EPA-8260B ND 1 1,1,1-Trichloroethane ND mg/kg 0.0037 0.00081 EPA-8260B ND 1 1,1,2-Trichloroethane ND mg/kg 0.0037 0.00056 EPA-8260B ND 1 Trichloroethene ND mg/kg 0.0037 0.00081 EPA-8260B ND 1 Trichlorofluoromethane ND mg/kg 0.0037 0.00081 EPA-8260B ND 1 1,2,3-Trichloropropane ND mg/kg 0.0037 0.0012 EPA-8260B ND 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND mg/kg 0.0037 0.00095 EPA-8260B ND 1 1,2,4-Trimethylbenzene ND mg/kg 0.0037 0.00095 EPA-8260B ND 1 1,3,5-Trimethylbenzene ND mg/kg 0.0037 0.0011 EPA-8260B ND 1 Vinyl chloride ND mg/kg 0.0037 0.0012 EPA-8260B ND 1 Total Xylenes ND mg/kg 0.0073 0.0025 EPA-8260B ND 1 p- & m-Xylenes ND mg/kg 0.0037 0.0016 EPA-8260B ND 1 o-Xylene ND mg/kg 0.0037 0.00088 EPA-8260B ND 1 1,2-Dichloroethane-d4 (Surrogate) 129 % 70 - 121 (LCL - UCL) EPA-8260B S09 1 Toluene-d8 (Surrogate) 95.7 % 81 - 117 (LCL - UCL) EPA-8260B 1 4-Bromofluorobenzene (Surrogate) 103 % 74 - 121 (LCL - UCL) EPA-8260B 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 36 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-10 Client Sample Name: DUP-2, 10/29/2018 12:11:00PM Run QC Run # Method Prep Date Date/Time Analyst Instrument Dilution Batch ID 1 EPA-8260B 11/02/18 12:00 11/02/18 20:50 ADC MS-V2 0.732 B029093

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 37 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-11 Client Sample Name: WS-1, 10/29/2018 4:00:00PM MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Benzene ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 Bromobenzene ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 Bromochloromethane ND mg/kg 0.0050 0.00092 EPA-8260B ND 1 Bromodichloromethane ND mg/kg 0.0050 0.00084 EPA-8260B ND 1 Bromoform ND mg/kg 0.0050 0.0015 EPA-8260B ND 1 Bromomethane ND mg/kg 0.0050 0.0016 EPA-8260B ND 1 n-Butylbenzene ND mg/kg 0.0050 0.0015 EPA-8260B ND 1 sec-Butylbenzene ND mg/kg 0.0050 0.0012 EPA-8260B ND 1 tert-Butylbenzene ND mg/kg 0.0050 0.0012 EPA-8260B ND 1 Carbon tetrachloride ND mg/kg 0.0050 0.0011 EPA-8260B ND 1 Chlorobenzene ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 Chloroethane ND mg/kg 0.0050 0.0014 EPA-8260B ND 1 Chloroform ND mg/kg 0.0050 0.00063 EPA-8260B ND 1 Chloromethane ND mg/kg 0.0050 0.0014 EPA-8260B ND 1 2-Chlorotoluene ND mg/kg 0.0050 0.0018 EPA-8260B ND 1 4-Chlorotoluene ND mg/kg 0.0050 0.0014 EPA-8260B ND 1 Dibromochloromethane ND mg/kg 0.0050 0.00099 EPA-8260B ND 1 1,2-Dibromo-3-chloropropane ND mg/kg 0.0050 0.0017 EPA-8260B ND 1 1,2-Dibromoethane ND mg/kg 0.0050 0.0010 EPA-8260B ND 1 Dibromomethane ND mg/kg 0.0050 0.0018 EPA-8260B ND 1 1,2-Dichlorobenzene ND mg/kg 0.0050 0.00081 EPA-8260B ND 1 1,3-Dichlorobenzene ND mg/kg 0.0050 0.0014 EPA-8260B ND 1 1,4-Dichlorobenzene ND mg/kg 0.0050 0.0015 EPA-8260B ND 1 Dichlorodifluoromethane ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 1,1-Dichloroethane ND mg/kg 0.0050 0.0014 EPA-8260B ND 1 1,2-Dichloroethane ND mg/kg 0.0050 0.00085 EPA-8260B ND 1 1,1-Dichloroethene ND mg/kg 0.0050 0.0012 EPA-8260B ND 1 cis-1,2-Dichloroethene ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 trans-1,2-Dichloroethene ND mg/kg 0.0050 0.0014 EPA-8260B ND 1 1,2-Dichloropropane ND mg/kg 0.0050 0.00081 EPA-8260B ND 1 1,3-Dichloropropane ND mg/kg 0.0050 0.0011 EPA-8260B ND 1 2,2-Dichloropropane ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 1,1-Dichloropropene ND mg/kg 0.0050 0.0012 EPA-8260B ND 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 38 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-11 Client Sample Name: WS-1, 10/29/2018 4:00:00PM MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # cis-1,3-Dichloropropene ND mg/kg 0.0050 0.0011 EPA-8260B ND 1 trans-1,3-Dichloropropene ND mg/kg 0.0050 0.0012 EPA-8260B ND 1 Ethylbenzene ND mg/kg 0.0050 0.0015 EPA-8260B ND 1 Hexachlorobutadiene ND mg/kg 0.0050 0.0017 EPA-8260B ND 1 Isopropylbenzene ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 p-Isopropyltoluene ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 Methylene chloride ND mg/kg 0.010 0.0024 EPA-8260B ND 1 Methyl t-butyl ether ND mg/kg 0.0050 0.00050 EPA-8260B ND 1 Naphthalene ND mg/kg 0.0050 0.0014 EPA-8260B ND 1 n-Propylbenzene ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 Styrene ND mg/kg 0.0050 0.0014 EPA-8260B ND 1 1,1,1,2-Tetrachloroethane ND mg/kg 0.0050 0.0011 EPA-8260B ND 1 1,1,2,2-Tetrachloroethane ND mg/kg 0.0050 0.0011 EPA-8260B ND 1 Tetrachloroethene ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 Toluene ND mg/kg 0.0050 0.0012 EPA-8260B ND 1 1,2,3-Trichlorobenzene ND mg/kg 0.0050 0.0021 EPA-8260B ND 1 1,2,4-Trichlorobenzene ND mg/kg 0.0050 0.0020 EPA-8260B ND 1 1,1,1-Trichloroethane ND mg/kg 0.0050 0.0011 EPA-8260B ND 1 1,1,2-Trichloroethane ND mg/kg 0.0050 0.00077 EPA-8260B ND 1 Trichloroethene ND mg/kg 0.0050 0.0011 EPA-8260B ND 1 Trichlorofluoromethane ND mg/kg 0.0050 0.0011 EPA-8260B ND 1 1,2,3-Trichloropropane ND mg/kg 0.0050 0.0016 EPA-8260B ND 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 1,2,4-Trimethylbenzene ND mg/kg 0.0050 0.0013 EPA-8260B ND 1 1,3,5-Trimethylbenzene ND mg/kg 0.0050 0.0015 EPA-8260B ND 1 Vinyl chloride ND mg/kg 0.0050 0.0016 EPA-8260B ND 1 Total Xylenes ND mg/kg 0.010 0.0034 EPA-8260B ND 1 p- & m-Xylenes ND mg/kg 0.0050 0.0022 EPA-8260B ND 1 o-Xylene ND mg/kg 0.0050 0.0012 EPA-8260B ND 1 1,2-Dichloroethane-d4 (Surrogate) 94.1 % 70 - 121 (LCL - UCL) EPA-8260B 1 Toluene-d8 (Surrogate) 95.6 % 81 - 117 (LCL - UCL) EPA-8260B 1 4-Bromofluorobenzene (Surrogate) 106 % 74 - 121 (LCL - UCL) EPA-8260B 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 39 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834229-11 Client Sample Name: WS-1, 10/29/2018 4:00:00PM Run QC Run # Method Prep Date Date/Time Analyst Instrument Dilution Batch ID 1 EPA-8260B 11/05/18 09:00 11/06/18 12:06 ADC MS-V2 1 B029077

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 40 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

Quality Control Report - Method Blank Analysis

Constituent QC Sample ID MB Result Units PQL MDL Lab Quals

QC Batch ID: B029077 Benzene B029077-BLK1 ND mg/kg 0.0050 0.0013

Bromobenzene B029077-BLK1 ND mg/kg 0.0050 0.0013

Bromochloromethane B029077-BLK1 ND mg/kg 0.0050 0.00092

Bromodichloromethane B029077-BLK1 ND mg/kg 0.0050 0.00084

Bromoform B029077-BLK1 ND mg/kg 0.0050 0.0015

Bromomethane B029077-BLK1 ND mg/kg 0.0050 0.0016

n-Butylbenzene B029077-BLK1 ND mg/kg 0.0050 0.0015

sec-Butylbenzene B029077-BLK1 ND mg/kg 0.0050 0.0012

tert-Butylbenzene B029077-BLK1 ND mg/kg 0.0050 0.0012

Carbon tetrachloride B029077-BLK1 ND mg/kg 0.0050 0.0011

Chlorobenzene B029077-BLK1 ND mg/kg 0.0050 0.0013

Chloroethane B029077-BLK1 ND mg/kg 0.0050 0.0014

Chloroform B029077-BLK1 ND mg/kg 0.0050 0.00063

Chloromethane B029077-BLK1 ND mg/kg 0.0050 0.0014

2-Chlorotoluene B029077-BLK1 ND mg/kg 0.0050 0.0018

4-Chlorotoluene B029077-BLK1 ND mg/kg 0.0050 0.0014

Dibromochloromethane B029077-BLK1 ND mg/kg 0.0050 0.00099

1,2-Dibromo-3-chloropropane B029077-BLK1 ND mg/kg 0.0050 0.0017

1,2-Dibromoethane B029077-BLK1 ND mg/kg 0.0050 0.0010

Dibromomethane B029077-BLK1 ND mg/kg 0.0050 0.0018

1,2-Dichlorobenzene B029077-BLK1 ND mg/kg 0.0050 0.00081

1,3-Dichlorobenzene B029077-BLK1 ND mg/kg 0.0050 0.0014

1,4-Dichlorobenzene B029077-BLK1 ND mg/kg 0.0050 0.0015

Dichlorodifluoromethane B029077-BLK1 ND mg/kg 0.0050 0.0013

1,1-Dichloroethane B029077-BLK1 ND mg/kg 0.0050 0.0014

1,2-Dichloroethane B029077-BLK1 ND mg/kg 0.0050 0.00085

1,1-Dichloroethene B029077-BLK1 ND mg/kg 0.0050 0.0012

cis-1,2-Dichloroethene B029077-BLK1 ND mg/kg 0.0050 0.0013

trans-1,2-Dichloroethene B029077-BLK1 ND mg/kg 0.0050 0.0014

1,2-Dichloropropane B029077-BLK1 ND mg/kg 0.0050 0.00081

1,3-Dichloropropane B029077-BLK1 ND mg/kg 0.0050 0.0011

2,2-Dichloropropane B029077-BLK1 ND mg/kg 0.0050 0.0013

1,1-Dichloropropene B029077-BLK1 ND mg/kg 0.0050 0.0012

cis-1,3-Dichloropropene B029077-BLK1 ND mg/kg 0.0050 0.0011

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 41 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

Quality Control Report - Method Blank Analysis

Constituent QC Sample ID MB Result Units PQL MDL Lab Quals

QC Batch ID: B029077 trans-1,3-Dichloropropene B029077-BLK1 ND mg/kg 0.0050 0.0012

Ethylbenzene B029077-BLK1 ND mg/kg 0.0050 0.0015

Hexachlorobutadiene B029077-BLK1 ND mg/kg 0.0050 0.0017

Isopropylbenzene B029077-BLK1 ND mg/kg 0.0050 0.0013

p-Isopropyltoluene B029077-BLK1 ND mg/kg 0.0050 0.0013

Methylene chloride B029077-BLK1 ND mg/kg 0.010 0.0024

Methyl t-butyl ether B029077-BLK1 ND mg/kg 0.0050 0.00050

Naphthalene B029077-BLK1 ND mg/kg 0.0050 0.0014

n-Propylbenzene B029077-BLK1 ND mg/kg 0.0050 0.0013

Styrene B029077-BLK1 ND mg/kg 0.0050 0.0014

1,1,1,2-Tetrachloroethane B029077-BLK1 ND mg/kg 0.0050 0.0011

1,1,2,2-Tetrachloroethane B029077-BLK1 ND mg/kg 0.0050 0.0011

Tetrachloroethene B029077-BLK1 ND mg/kg 0.0050 0.0013

Toluene B029077-BLK1 ND mg/kg 0.0050 0.0012

1,2,3-Trichlorobenzene B029077-BLK1 ND mg/kg 0.0050 0.0021

1,2,4-Trichlorobenzene B029077-BLK1 ND mg/kg 0.0050 0.0020

1,1,1-Trichloroethane B029077-BLK1 ND mg/kg 0.0050 0.0011

1,1,2-Trichloroethane B029077-BLK1 ND mg/kg 0.0050 0.00077

Trichloroethene B029077-BLK1 ND mg/kg 0.0050 0.0011

Trichlorofluoromethane B029077-BLK1 ND mg/kg 0.0050 0.0011

1,2,3-Trichloropropane B029077-BLK1 ND mg/kg 0.0050 0.0016

1,1,2-Trichloro-1,2,2-trifluoroethane B029077-BLK1 ND mg/kg 0.0050 0.0013

1,2,4-Trimethylbenzene B029077-BLK1 ND mg/kg 0.0050 0.0013

1,3,5-Trimethylbenzene B029077-BLK1 ND mg/kg 0.0050 0.0015

Vinyl chloride B029077-BLK1 ND mg/kg 0.0050 0.0016

Total Xylenes B029077-BLK1 ND mg/kg 0.010 0.0034

p- & m-Xylenes B029077-BLK1 ND mg/kg 0.0050 0.0022

o-Xylene B029077-BLK1 ND mg/kg 0.0050 0.0012

1,2-Dichloroethane-d4 (Surrogate) B029077-BLK1 101 % 70 - 121 (LCL - UCL)

Toluene-d8 (Surrogate) B029077-BLK1 96.7 % 81 - 117 (LCL - UCL)

4-Bromofluorobenzene (Surrogate) B029077-BLK1 105 % 74 - 121 (LCL - UCL)

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 42 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

Quality Control Report - Laboratory Control Sample Control Limits Spike Percent Percent Lab Constituent QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quals

QC Batch ID: B029077 Benzene B029077-BS1 LCS 0.10995 0.12500 mg/kg 88.0 70 - 130

Bromodichloromethane B029077-BS1 LCS 0.11620 0.12500 mg/kg 93.0 70 - 130

Chlorobenzene B029077-BS1 LCS 0.12287 0.12500 mg/kg 98.3 70 - 130

Chloroethane B029077-BS1 LCS 0.10327 0.12500 mg/kg 82.6 70 - 130

1,4-Dichlorobenzene B029077-BS1 LCS 0.12364 0.12500 mg/kg 98.9 70 - 130

1,1-Dichloroethane B029077-BS1 LCS 0.12411 0.12500 mg/kg 99.3 70 - 130

1,1-Dichloroethene B029077-BS1 LCS 0.12043 0.12500 mg/kg 96.3 70 - 130

Toluene B029077-BS1 LCS 0.11857 0.12500 mg/kg 94.9 70 - 130

Trichloroethene B029077-BS1 LCS 0.11886 0.12500 mg/kg 95.1 70 - 130

1,2-Dichloroethane-d4 (Surrogate) B029077-BS1 LCS 0.044630 0.050000 mg/kg 89.3 70 - 121

Toluene-d8 (Surrogate) B029077-BS1 LCS 0.049020 0.050000 mg/kg 98.0 81 - 117

4-Bromofluorobenzene (Surrogate) B029077-BS1 LCS 0.052290 0.050000 mg/kg 105 74 - 121

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 43 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

Genesis Engineering & Redevelopment Reported: 11/07/2018 12:10 115 South School Street, Suite #8 Project: Virginia Cleaners Lodi, CA 95240 Project Number: 252-6-3 Project Manager: Ed T. Weyrens Volatile Organic Analysis (EPA Method 8260B) Quality Control Report - Precision & Accuracy Control Limits Source Source Spike Percent Percent Lab Constituent Type Sample ID Result Result Added Units RPD Recovery RPD Recovery Quals

QC Batch ID: B029077 Used client sample: N Benzene MS 1833163-24 ND 0.11214 0.12500 mg/kg 89.7 70 - 130 MSD 1833163-24 ND 0.12192 0.12500 mg/kg 8.4 97.5 20 70 - 130

Bromodichloromethane MS 1833163-24 ND 0.11455 0.12500 mg/kg 91.6 70 - 130 MSD 1833163-24 ND 0.11841 0.12500 mg/kg 3.3 94.7 20 70 - 130

Chlorobenzene MS 1833163-24 ND 0.11614 0.12500 mg/kg 92.9 70 - 130 MSD 1833163-24 ND 0.12800 0.12500 mg/kg 9.7 102 20 70 - 130

Chloroethane MS 1833163-24 ND 0.12278 0.12500 mg/kg 98.2 70 - 130 MSD 1833163-24 ND 0.11798 0.12500 mg/kg 4.0 94.4 20 70 - 130

1,4-Dichlorobenzene MS 1833163-24 ND 0.12023 0.12500 mg/kg 96.2 70 - 130 MSD 1833163-24 ND 0.12639 0.12500 mg/kg 5.0 101 20 70 - 130

1,1-Dichloroethane MS 1833163-24 ND 0.11490 0.12500 mg/kg 91.9 70 - 130 MSD 1833163-24 ND 0.12307 0.12500 mg/kg 6.9 98.5 20 70 - 130

1,1-Dichloroethene MS 1833163-24 ND 0.11950 0.12500 mg/kg 95.6 70 - 130 MSD 1833163-24 ND 0.12308 0.12500 mg/kg 3.0 98.5 20 70 - 130

Toluene MS 1833163-24 ND 0.11783 0.12500 mg/kg 94.3 70 - 130 MSD 1833163-24 ND 0.11819 0.12500 mg/kg 0.3 94.6 20 70 - 130

Trichloroethene MS 1833163-24 ND 0.12193 0.12500 mg/kg 97.5 70 - 130 MSD 1833163-24 ND 0.12200 0.12500 mg/kg 0.1 97.6 20 70 - 130

1,2-Dichloroethane-d4 (Surrogate) MS 1833163-24 ND 0.048590 0.050000 mg/kg 97.2 70 - 121 MSD 1833163-24 ND 0.049050 0.050000 mg/kg 0.9 98.1 70 - 121

Toluene-d8 (Surrogate) MS 1833163-24 ND 0.051480 0.050000 mg/kg 103 81 - 117 MSD 1833163-24 ND 0.049420 0.050000 mg/kg 4.1 98.8 81 - 117

4-Bromofluorobenzene (Surrogate) MS 1833163-24 ND 0.052000 0.050000 mg/kg 104 74 - 121 MSD 1833163-24 ND 0.051400 0.050000 mg/kg 1.2 103 74 - 121

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 44 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

Quality Control Report - Method Blank Analysis

Constituent QC Sample ID MB Result Units PQL MDL Lab Quals

QC Batch ID: B029093 Benzene B029093-BLK1 ND mg/kg 0.0050 0.0013

Bromobenzene B029093-BLK1 ND mg/kg 0.0050 0.0013

Bromochloromethane B029093-BLK1 ND mg/kg 0.0050 0.00092

Bromodichloromethane B029093-BLK1 ND mg/kg 0.0050 0.00084

Bromoform B029093-BLK1 ND mg/kg 0.0050 0.0015

Bromomethane B029093-BLK1 ND mg/kg 0.0050 0.0016

n-Butylbenzene B029093-BLK1 ND mg/kg 0.0050 0.0015

sec-Butylbenzene B029093-BLK1 ND mg/kg 0.0050 0.0012

tert-Butylbenzene B029093-BLK1 ND mg/kg 0.0050 0.0012

Carbon tetrachloride B029093-BLK1 ND mg/kg 0.0050 0.0011

Chlorobenzene B029093-BLK1 ND mg/kg 0.0050 0.0013

Chloroethane B029093-BLK1 ND mg/kg 0.0050 0.0014

Chloroform B029093-BLK1 ND mg/kg 0.0050 0.00063

Chloromethane B029093-BLK1 ND mg/kg 0.0050 0.0014

2-Chlorotoluene B029093-BLK1 ND mg/kg 0.0050 0.0018

4-Chlorotoluene B029093-BLK1 ND mg/kg 0.0050 0.0014

Dibromochloromethane B029093-BLK1 ND mg/kg 0.0050 0.00099

1,2-Dibromo-3-chloropropane B029093-BLK1 ND mg/kg 0.0050 0.0017

1,2-Dibromoethane B029093-BLK1 ND mg/kg 0.0050 0.0010

Dibromomethane B029093-BLK1 ND mg/kg 0.0050 0.0018

1,2-Dichlorobenzene B029093-BLK1 ND mg/kg 0.0050 0.00081

1,3-Dichlorobenzene B029093-BLK1 ND mg/kg 0.0050 0.0014

1,4-Dichlorobenzene B029093-BLK1 ND mg/kg 0.0050 0.0015

Dichlorodifluoromethane B029093-BLK1 ND mg/kg 0.0050 0.0013

1,1-Dichloroethane B029093-BLK1 ND mg/kg 0.0050 0.0014

1,2-Dichloroethane B029093-BLK1 ND mg/kg 0.0050 0.00085

1,1-Dichloroethene B029093-BLK1 ND mg/kg 0.0050 0.0012

cis-1,2-Dichloroethene B029093-BLK1 ND mg/kg 0.0050 0.0013

trans-1,2-Dichloroethene B029093-BLK1 ND mg/kg 0.0050 0.0014

1,2-Dichloropropane B029093-BLK1 ND mg/kg 0.0050 0.00081

1,3-Dichloropropane B029093-BLK1 ND mg/kg 0.0050 0.0011

2,2-Dichloropropane B029093-BLK1 ND mg/kg 0.0050 0.0013

1,1-Dichloropropene B029093-BLK1 ND mg/kg 0.0050 0.0012

cis-1,3-Dichloropropene B029093-BLK1 ND mg/kg 0.0050 0.0011

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 45 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

Quality Control Report - Method Blank Analysis

Constituent QC Sample ID MB Result Units PQL MDL Lab Quals

QC Batch ID: B029093 trans-1,3-Dichloropropene B029093-BLK1 ND mg/kg 0.0050 0.0012

Ethylbenzene B029093-BLK1 ND mg/kg 0.0050 0.0015

Hexachlorobutadiene B029093-BLK1 ND mg/kg 0.0050 0.0017

Isopropylbenzene B029093-BLK1 ND mg/kg 0.0050 0.0013

p-Isopropyltoluene B029093-BLK1 ND mg/kg 0.0050 0.0013

Methylene chloride B029093-BLK1 ND mg/kg 0.010 0.0024

Methyl t-butyl ether B029093-BLK1 ND mg/kg 0.0050 0.00050

Naphthalene B029093-BLK1 ND mg/kg 0.0050 0.0014

n-Propylbenzene B029093-BLK1 ND mg/kg 0.0050 0.0013

Styrene B029093-BLK1 ND mg/kg 0.0050 0.0014

1,1,1,2-Tetrachloroethane B029093-BLK1 ND mg/kg 0.0050 0.0011

1,1,2,2-Tetrachloroethane B029093-BLK1 ND mg/kg 0.0050 0.0011

Tetrachloroethene B029093-BLK1 ND mg/kg 0.0050 0.0013

Toluene B029093-BLK1 ND mg/kg 0.0050 0.0012

1,2,3-Trichlorobenzene B029093-BLK1 ND mg/kg 0.0050 0.0021

1,2,4-Trichlorobenzene B029093-BLK1 ND mg/kg 0.0050 0.0020

1,1,1-Trichloroethane B029093-BLK1 ND mg/kg 0.0050 0.0011

1,1,2-Trichloroethane B029093-BLK1 ND mg/kg 0.0050 0.00077

Trichloroethene B029093-BLK1 ND mg/kg 0.0050 0.0011

Trichlorofluoromethane B029093-BLK1 ND mg/kg 0.0050 0.0011

1,2,3-Trichloropropane B029093-BLK1 ND mg/kg 0.0050 0.0016

1,1,2-Trichloro-1,2,2-trifluoroethane B029093-BLK1 ND mg/kg 0.0050 0.0013

1,2,4-Trimethylbenzene B029093-BLK1 ND mg/kg 0.0050 0.0013

1,3,5-Trimethylbenzene B029093-BLK1 ND mg/kg 0.0050 0.0015

Vinyl chloride B029093-BLK1 ND mg/kg 0.0050 0.0016

Total Xylenes B029093-BLK1 ND mg/kg 0.010 0.0034

p- & m-Xylenes B029093-BLK1 ND mg/kg 0.0050 0.0022

o-Xylene B029093-BLK1 ND mg/kg 0.0050 0.0012

1,2-Dichloroethane-d4 (Surrogate) B029093-BLK1 96.2 % 70 - 121 (LCL - UCL)

Toluene-d8 (Surrogate) B029093-BLK1 99.2 % 81 - 117 (LCL - UCL)

4-Bromofluorobenzene (Surrogate) B029093-BLK1 100 % 74 - 121 (LCL - UCL)

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 46 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

Quality Control Report - Laboratory Control Sample Control Limits Spike Percent Percent Lab Constituent QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quals

QC Batch ID: B029093 Benzene B029093-BS1 LCS 0.12202 0.12500 mg/kg 97.6 70 - 130

Bromodichloromethane B029093-BS1 LCS 0.12441 0.12500 mg/kg 99.5 70 - 130

Chlorobenzene B029093-BS1 LCS 0.12590 0.12500 mg/kg 101 70 - 130

Chloroethane B029093-BS1 LCS 0.12730 0.12500 mg/kg 102 70 - 130

1,4-Dichlorobenzene B029093-BS1 LCS 0.13052 0.12500 mg/kg 104 70 - 130

1,1-Dichloroethane B029093-BS1 LCS 0.12957 0.12500 mg/kg 104 70 - 130

1,1-Dichloroethene B029093-BS1 LCS 0.12732 0.12500 mg/kg 102 70 - 130

Toluene B029093-BS1 LCS 0.12433 0.12500 mg/kg 99.5 70 - 130

Trichloroethene B029093-BS1 LCS 0.13140 0.12500 mg/kg 105 70 - 130

1,2-Dichloroethane-d4 (Surrogate) B029093-BS1 LCS 0.049760 0.050000 mg/kg 99.5 70 - 121

Toluene-d8 (Surrogate) B029093-BS1 LCS 0.048600 0.050000 mg/kg 97.2 81 - 117

4-Bromofluorobenzene (Surrogate) B029093-BS1 LCS 0.051690 0.050000 mg/kg 103 74 - 121

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 47 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

Genesis Engineering & Redevelopment Reported: 11/07/2018 12:10 115 South School Street, Suite #8 Project: Virginia Cleaners Lodi, CA 95240 Project Number: 252-6-3 Project Manager: Ed T. Weyrens Volatile Organic Analysis (EPA Method 8260B/5035) Quality Control Report - Precision & Accuracy Control Limits Source Source Spike Percent Percent Lab Constituent Type Sample ID Result Result Added Units RPD Recovery RPD Recovery Quals

QC Batch ID: B029093 Used client sample: N Benzene MS 1833163-21 ND 0.11733 0.12500 mg/kg 93.9 70 - 130 MSD 1833163-21 ND 0.11203 0.12500 mg/kg 4.6 89.6 20 70 - 130

Bromodichloromethane MS 1833163-21 ND 0.11474 0.12500 mg/kg 91.8 70 - 130 MSD 1833163-21 ND 0.12208 0.12500 mg/kg 6.2 97.7 20 70 - 130

Chlorobenzene MS 1833163-21 ND 0.12038 0.12500 mg/kg 96.3 70 - 130 MSD 1833163-21 ND 0.12292 0.12500 mg/kg 2.1 98.3 20 70 - 130

Chloroethane MS 1833163-21 ND 0.12586 0.12500 mg/kg 101 70 - 130 MSD 1833163-21 ND 0.10528 0.12500 mg/kg 17.8 84.2 20 70 - 130

1,4-Dichlorobenzene MS 1833163-21 ND 0.11605 0.12500 mg/kg 92.8 70 - 130 MSD 1833163-21 ND 0.12313 0.12500 mg/kg 5.9 98.5 20 70 - 130

1,1-Dichloroethane MS 1833163-21 ND 0.12265 0.12500 mg/kg 98.1 70 - 130 MSD 1833163-21 ND 0.12269 0.12500 mg/kg 0.0 98.2 20 70 - 130

1,1-Dichloroethene MS 1833163-21 ND 0.12591 0.12500 mg/kg 101 70 - 130 MSD 1833163-21 ND 0.11785 0.12500 mg/kg 6.6 94.3 20 70 - 130

Toluene MS 1833163-21 ND 0.11360 0.12500 mg/kg 90.9 70 - 130 MSD 1833163-21 ND 0.11987 0.12500 mg/kg 5.4 95.9 20 70 - 130

Trichloroethene MS 1833163-21 ND 0.11425 0.12500 mg/kg 91.4 70 - 130 MSD 1833163-21 ND 0.11659 0.12500 mg/kg 2.0 93.3 20 70 - 130

1,2-Dichloroethane-d4 (Surrogate) MS 1833163-21 ND 0.049690 0.050000 mg/kg 99.4 70 - 121 MSD 1833163-21 ND 0.047460 0.050000 mg/kg 4.6 94.9 70 - 121

Toluene-d8 (Surrogate) MS 1833163-21 ND 0.046580 0.050000 mg/kg 93.2 81 - 117 MSD 1833163-21 ND 0.048330 0.050000 mg/kg 3.7 96.7 81 - 117

4-Bromofluorobenzene (Surrogate) MS 1833163-21 ND 0.051030 0.050000 mg/kg 102 74 - 121 MSD 1833163-21 ND 0.052000 0.050000 mg/kg 1.9 104 74 - 121

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 48 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949

ND Analyte Not Detected

PQL Practical Quantitation Limit

S09 The surrogate recovery for this compound was not within the control limits.

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000814719 Page 49 of 49 Laboratories, Inc. Environmental Testing Laboratory Since 1949 Date of Report: 11/19/2018

Ed T. Weyrens

Genesis Engineering & Redevelopment 115 South School Street, Suite #8 Lodi, CA 95240

Client Project: 252-6-3 BCL Project: Virginia Cleaners BCL Work Order: 1834638 Invoice ID: B322831

Enclosed are the results of analyses for samples received by the laboratory on 11/5/2018. If you have any questions concerning this report, please feel free to contact me.

Sincerely,

Contact Person: Christina Herndon Stuart Buttram Client Service Rep Technical Director

Certifications: CA ELAP #1186; NV #CA00014; OR ELAP #4032-001; AK UST101

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 1 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949 Table of Contents

Sample Information Chain of Custody and Cooler Receipt form...... 3 Laboratory / Client Sample Cross Reference...... 7 Sample Results 1834638-01 - SV-1-5 Volatile Organic Compounds by GC/MS (EPA Method TO-15 at STP)...... 9 1834638-02 - SV-1-15 Volatile Organic Compounds by GC/MS (EPA Method TO-15 at STP)...... 12 1834638-03 - SV-2-5 Volatile Organic Compounds by GC/MS (EPA Method TO-15 at STP)...... 15 1834638-04 - SV-2-15 Volatile Organic Compounds by GC/MS (EPA Method TO-15 at STP)...... 18 1834638-05 - SV-3-5 Volatile Organic Compounds by GC/MS (EPA Method TO-15 at STP)...... 21 1834638-06 - SV-3-15 Volatile Organic Compounds by GC/MS (EPA Method TO-15 at STP)...... 24 1834638-07 - SV-4-5 Volatile Organic Compounds by GC/MS (EPA Method TO-15 at STP)...... 27 1834638-08 - SV-4-15 Volatile Organic Compounds by GC/MS (EPA Method TO-15 at STP)...... 30 1834638-09 - SV-5-5 Volatile Organic Compounds by GC/MS (EPA Method TO-15 at STP)...... 33 1834638-10 - SV-5-10 Volatile Organic Compounds by GC/MS (EPA Method TO-15 at STP)...... 36 1834638-11 - SV-6-5 Volatile Organic Compounds by GC/MS (EPA Method TO-15 at STP)...... 39 1834638-12 - SV-6-10 Volatile Organic Compounds by GC/MS (EPA Method TO-15 at STP)...... 42 1834638-13 - Dup-1 Volatile Organic Compounds by GC/MS (EPA Method TO-15 at STP)...... 45 Quality Control Reports Volatile Organic Compounds by GC/MS (EPA Method TO-15 at STP) Method Blank Analysis...... 48 Laboratory Control Sample...... 58 Notes Notes and Definitions...... 62

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 2 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949 Chain of Custody and Cooler Receipt Form for 1834638 Page 1 of 4

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 3 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949 Chain of Custody and Cooler Receipt Form for 1834638 Page 2 of 4

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 4 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949 Chain of Custody and Cooler Receipt Form for 1834638 Page 3 of 4

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 5 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949 Chain of Custody and Cooler Receipt Form for 1834638 Page 4 of 4

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 6 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

Genesis Engineering & Redevelopment Reported: 11/19/2018 13:05 115 South School Street, Suite #8 Project: Virginia Cleaners Lodi, CA 95240 Project Number: 252-6-3 Project Manager: Ed T. Weyrens Laboratory / Client Sample Cross Reference

Laboratory Client Sample Information

1834638-01 COC Number: --- Receive Date: 11/05/2018 11:25 Project Number: Virginia Cleaners Sampling Date: 11/01/2018 11:29 Sampling Location: --- Sample Depth: --- Sampling Point: SV-1-5 Lab Matrix: Air Sampled By: Stephen C. of GEDR Sample Type: Vapor or Air

1834638-02 COC Number: --- Receive Date: 11/05/2018 11:25 Project Number: Virginia Cleaners Sampling Date: 11/01/2018 11:30 Sampling Location: --- Sample Depth: --- Sampling Point: SV-1-15 Lab Matrix: Air Sampled By: Stephen C. of GEDR Sample Type: Vapor or Air

1834638-03 COC Number: --- Receive Date: 11/05/2018 11:25 Project Number: Virginia Cleaners Sampling Date: 11/01/2018 11:44 Sampling Location: --- Sample Depth: --- Sampling Point: SV-2-5 Lab Matrix: Air Sampled By: Stephen C. of GEDR Sample Type: Vapor or Air

1834638-04 COC Number: --- Receive Date: 11/05/2018 11:25 Project Number: Virginia Cleaners Sampling Date: 11/01/2018 11:46 Sampling Location: --- Sample Depth: --- Sampling Point: SV-2-15 Lab Matrix: Air Sampled By: Stephen C. of GEDR Sample Type: Vapor or Air

1834638-05 COC Number: --- Receive Date: 11/05/2018 11:25 Project Number: Virginia Cleaners Sampling Date: 11/01/2018 11:58 Sampling Location: --- Sample Depth: --- Sampling Point: SV-3-5 Lab Matrix: Air Sampled By: Stephen C. of GEDR Sample Type: Vapor or Air

1834638-06 COC Number: --- Receive Date: 11/05/2018 11:25 Project Number: Virginia Cleaners Sampling Date: 11/01/2018 12:03 Sampling Location: --- Sample Depth: --- Sampling Point: SV-3-15 Lab Matrix: Air Sampled By: Stephen C. of GEDR Sample Type: Vapor or Air

1834638-07 COC Number: --- Receive Date: 11/05/2018 11:25 Project Number: Virginia Cleaners Sampling Date: 11/01/2018 12:25 Sampling Location: --- Sample Depth: --- Sampling Point: SV-4-5 Lab Matrix: Air Sampled By: Stephen C. of GEDR Sample Type: Vapor or Air

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 7 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

Laboratory Client Sample Information

1834638-08 COC Number: --- Receive Date: 11/05/2018 11:25 Project Number: Virginia Cleaners Sampling Date: 11/01/2018 12:23 Sampling Location: --- Sample Depth: --- Sampling Point: SV-4-15 Lab Matrix: Air Sampled By: Stephen C. of GEDR Sample Type: Vapor or Air

1834638-09 COC Number: --- Receive Date: 11/05/2018 11:25 Project Number: Virginia Cleaners Sampling Date: 11/01/2018 12:40 Sampling Location: --- Sample Depth: --- Sampling Point: SV-5-5 Lab Matrix: Air Sampled By: Stephen C. of GEDR Sample Type: Vapor or Air

1834638-10 COC Number: --- Receive Date: 11/05/2018 11:25 Project Number: Virginia Cleaners Sampling Date: 11/01/2018 12:41 Sampling Location: --- Sample Depth: --- Sampling Point: SV-5-10 Lab Matrix: Air Sampled By: Stephen C. of GEDR Sample Type: Vapor or Air

1834638-11 COC Number: --- Receive Date: 11/05/2018 11:25 Project Number: Virginia Cleaners Sampling Date: 11/01/2018 12:55 Sampling Location: --- Sample Depth: --- Sampling Point: SV-6-5 Lab Matrix: Air Sampled By: Stephen C. of GEDR Sample Type: Vapor or Air

1834638-12 COC Number: --- Receive Date: 11/05/2018 11:25 Project Number: Virginia Cleaners Sampling Date: 11/01/2018 12:57 Sampling Location: --- Sample Depth: --- Sampling Point: SV-6-10 Lab Matrix: Air Sampled By: Stephen C. of GEDR Sample Type: Vapor or Air

1834638-13 COC Number: --- Receive Date: 11/05/2018 11:25 Project Number: Virginia Cleaners Sampling Date: 11/01/2018 12:25 Sampling Location: --- Sample Depth: --- Sampling Point: Dup-1 Lab Matrix: Air Sampled By: Stephen C. of GEDR Sample Type: Vapor or Air

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 8 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-01 Client Sample Name: Virginia Cleaners, SV-1-5, 11/1/2018 11:29:00AM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Acetone 30 ug/m3 84 6.6 EPA-TO-15 ND J,A01 1 Acrylonitrile ND ug/m3 34 3.7 EPA-TO-15 ND A01 1 Allyl chloride ND ug/m3 34 4.4 EPA-TO-15 ND A01 1 Benzene ND ug/m3 34 2.7 EPA-TO-15 ND A01 1 Benzyl chloride ND ug/m3 170 11 EPA-TO-15 ND A01 1 Bromodichloromethane ND ug/m3 84 6.7 EPA-TO-15 ND A01 1 Bromoform ND ug/m3 170 12 EPA-TO-15 ND A01 1 Bromomethane ND ug/m3 34 9.2 EPA-TO-15 ND A01 1 1,3-Butadiene ND ug/m3 34 4.2 EPA-TO-15 ND A01 1 Carbon disulfide ND ug/m3 34 2.7 EPA-TO-15 ND A01 1 Carbon tetrachloride ND ug/m3 84 6.4 EPA-TO-15 ND A01 1 Chlorobenzene ND ug/m3 84 5.5 EPA-TO-15 ND A01 1 Chloroethane ND ug/m3 34 5.4 EPA-TO-15 ND A01 1 Chloroform ND ug/m3 84 4.2 EPA-TO-15 ND A01 1 Chloromethane ND ug/m3 34 4.9 EPA-TO-15 ND A01 1 Cyclohexane ND ug/m3 34 3.0 EPA-TO-15 ND A01 1 Dibromochloromethane ND ug/m3 84 7.2 EPA-TO-15 ND A01 1 1,2-Dibromoethane ND ug/m3 84 6.9 EPA-TO-15 ND A01 1 1,2-Dichlorobenzene ND ug/m3 84 6.6 EPA-TO-15 ND A01 1 1,3-Dichlorobenzene ND ug/m3 84 10 EPA-TO-15 ND A01 1 1,4-Dichlorobenzene ND ug/m3 84 9.2 EPA-TO-15 ND A01 1 Dichlorodifluoromethane ND ug/m3 84 6.4 EPA-TO-15 ND A01 1 1,1-Dichloroethane ND ug/m3 84 4.7 EPA-TO-15 ND A01 1 1,2-Dichloroethane ND ug/m3 84 3.5 EPA-TO-15 ND A01 1 1,1-Dichloroethene ND ug/m3 84 3.4 EPA-TO-15 ND A01 1 cis-1,2-Dichloroethene ND ug/m3 34 3.9 EPA-TO-15 ND A01 1 trans-1,2-Dichloroethene ND ug/m3 34 3.4 EPA-TO-15 ND A01 1 1,2-Dichloropropane ND ug/m3 84 5.0 EPA-TO-15 ND A01 1 cis-1,3-Dichloropropene ND ug/m3 84 3.9 EPA-TO-15 ND A01 1 trans-1,3-Dichloropropene ND ug/m3 84 5.0 EPA-TO-15 ND A01 1 1,2-Dichloro-1,1,2,2-tetrafluoroethane ND ug/m3 84 13 EPA-TO-15 ND A01 1 1,1-Difluoroethane ND ug/m3 84 34 EPA-TO-15 ND A01 1 1,4-Dioxane ND ug/m3 34 9.1 EPA-TO-15 ND A01 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 9 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-01 Client Sample Name: Virginia Cleaners, SV-1-5, 11/1/2018 11:29:00AM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Ethanol ND ug/m3 34 12 EPA-TO-15 ND A01 1 Ethyl acetate ND ug/m3 34 6.7 EPA-TO-15 ND A01 1 Ethylbenzene ND ug/m3 84 6.0 EPA-TO-15 ND A01 1 1-Ethyl-4-methylbenzene ND ug/m3 84 9.2 EPA-TO-15 ND A01 1 n-Heptane ND ug/m3 34 5.0 EPA-TO-15 ND A01 1 Hexachlorobutadiene ND ug/m3 170 42 EPA-TO-15 ND A01 1 Hexane ND ug/m3 84 3.4 EPA-TO-15 ND A01 1 2-Hexanone ND ug/m3 84 5.7 EPA-TO-15 ND A01 1 Isopropyl alcohol 230 ug/m3 34 7.9 EPA-TO-15 ND A01 1 Methylene chloride ND ug/m3 170 4.0 EPA-TO-15 ND A01 1 Methyl ethyl ketone ND ug/m3 34 7.1 EPA-TO-15 ND A01 1 Methyl isobutyl ketone ND ug/m3 84 12 EPA-TO-15 ND A01 1 Methyl t-butyl ether ND ug/m3 34 6.0 EPA-TO-15 ND A01 1 Propylene ND ug/m3 34 1.5 EPA-TO-15 ND A01 1 Styrene ND ug/m3 84 6.4 EPA-TO-15 ND A01 1 1,1,2,2-Tetrachloroethane ND ug/m3 84 18 EPA-TO-15 ND A01 1 Tetrachloroethene 890 ug/m3 34 5.7 EPA-TO-15 ND A01 1 Tetrahydrofuran ND ug/m3 34 7.1 EPA-TO-15 ND A01 1 Toluene 26 ug/m3 34 3.2 EPA-TO-15 ND J,A01 1 1,2,4-Trichlorobenzene ND ug/m3 170 9.7 EPA-TO-15 ND A01 1 1,1,1-Trichloroethane ND ug/m3 84 4.7 EPA-TO-15 ND A01 1 1,1,2-Trichloroethane ND ug/m3 84 4.7 EPA-TO-15 ND A01 1 Trichloroethene ND ug/m3 34 6.4 EPA-TO-15 ND A01 1 Trichlorofluoromethane ND ug/m3 84 5.0 EPA-TO-15 ND A01 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND ug/m3 84 6.6 EPA-TO-15 ND A01 1 1,2,4-Trimethylbenzene ND ug/m3 84 11 EPA-TO-15 ND A01 1 1,3,5-Trimethylbenzene ND ug/m3 84 25 EPA-TO-15 ND A01 1 Vinyl acetate ND ug/m3 34 5.2 EPA-TO-15 ND A01 1 Vinyl chloride ND ug/m3 34 4.9 EPA-TO-15 ND A01 1 p- & m-Xylenes 18 ug/m3 84 14 EPA-TO-15 ND J,A01 1 o-Xylene ND ug/m3 84 8.9 EPA-TO-15 ND A01 1 Total Xylenes ND ug/m3 170 24 EPA-TO-15 ND A01 1 4-Bromofluorobenzene (Surrogate) 88.5 % 70 - 130 (LCL - UCL) EPA-TO-15 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 10 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-01 Client Sample Name: Virginia Cleaners, SV-1-5, 11/1/2018 11:29:00AM, Stephen C. Run QC Run # Method Prep Date Date/Time Analyst Instrument Dilution Batch ID 1 EPA-TO-15 11/07/18 12:43 11/07/18 21:21 BEP MS-A2 16.800 B029418

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 11 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-02 Client Sample Name: Virginia Cleaners, SV-1-15, 11/1/2018 11:30:00AM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Acetone 2300 ug/m3 680 53 EPA-TO-15 ND A01 1 Acrylonitrile ND ug/m3 270 30 EPA-TO-15 ND A01 1 Allyl chloride ND ug/m3 270 36 EPA-TO-15 ND A01 1 Benzene ND ug/m3 270 22 EPA-TO-15 ND A01 1 Benzyl chloride ND ug/m3 1400 86 EPA-TO-15 ND A01 1 Bromodichloromethane ND ug/m3 680 55 EPA-TO-15 ND A01 1 Bromoform ND ug/m3 1400 97 EPA-TO-15 ND A01 1 Bromomethane ND ug/m3 270 75 EPA-TO-15 ND A01 1 1,3-Butadiene ND ug/m3 270 34 EPA-TO-15 ND A01 1 Carbon disulfide ND ug/m3 270 22 EPA-TO-15 ND A01 1 Carbon tetrachloride ND ug/m3 680 52 EPA-TO-15 ND A01 1 Chlorobenzene ND ug/m3 680 45 EPA-TO-15 ND A01 1 Chloroethane ND ug/m3 270 44 EPA-TO-15 ND A01 1 Chloroform ND ug/m3 680 34 EPA-TO-15 ND A01 1 Chloromethane ND ug/m3 270 40 EPA-TO-15 ND A01 1 Cyclohexane ND ug/m3 270 25 EPA-TO-15 ND A01 1 Dibromochloromethane ND ug/m3 680 59 EPA-TO-15 ND A01 1 1,2-Dibromoethane ND ug/m3 680 56 EPA-TO-15 ND A01 1 1,2-Dichlorobenzene ND ug/m3 680 53 EPA-TO-15 ND A01 1 1,3-Dichlorobenzene ND ug/m3 680 84 EPA-TO-15 ND A01 1 1,4-Dichlorobenzene ND ug/m3 680 75 EPA-TO-15 ND A01 1 Dichlorodifluoromethane ND ug/m3 680 52 EPA-TO-15 ND A01 1 1,1-Dichloroethane ND ug/m3 680 38 EPA-TO-15 ND A01 1 1,2-Dichloroethane ND ug/m3 680 29 EPA-TO-15 ND A01 1 1,1-Dichloroethene ND ug/m3 680 27 EPA-TO-15 ND A01 1 cis-1,2-Dichloroethene ND ug/m3 270 32 EPA-TO-15 ND A01 1 trans-1,2-Dichloroethene ND ug/m3 270 27 EPA-TO-15 ND A01 1 1,2-Dichloropropane ND ug/m3 680 41 EPA-TO-15 ND A01 1 cis-1,3-Dichloropropene ND ug/m3 680 32 EPA-TO-15 ND A01 1 trans-1,3-Dichloropropene ND ug/m3 680 41 EPA-TO-15 ND A01 1 1,2-Dichloro-1,1,2,2-tetrafluoroethane ND ug/m3 680 110 EPA-TO-15 ND A01 1 1,1-Difluoroethane ND ug/m3 680 270 EPA-TO-15 ND A01 1 1,4-Dioxane ND ug/m3 270 74 EPA-TO-15 ND A01 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 12 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-02 Client Sample Name: Virginia Cleaners, SV-1-15, 11/1/2018 11:30:00AM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Ethanol ND ug/m3 270 100 EPA-TO-15 ND A01 1 Ethyl acetate ND ug/m3 270 55 EPA-TO-15 ND A01 1 Ethylbenzene 77 ug/m3 680 49 EPA-TO-15 ND J,A01 1 1-Ethyl-4-methylbenzene ND ug/m3 680 75 EPA-TO-15 ND A01 1 n-Heptane ND ug/m3 270 41 EPA-TO-15 ND A01 1 Hexachlorobutadiene ND ug/m3 1400 340 EPA-TO-15 ND A01 1 Hexane ND ug/m3 680 27 EPA-TO-15 ND A01 1 2-Hexanone ND ug/m3 680 47 EPA-TO-15 ND A01 1 Isopropyl alcohol 760 ug/m3 270 64 EPA-TO-15 ND A01 1 Methylene chloride ND ug/m3 1400 33 EPA-TO-15 ND A01 1 Methyl ethyl ketone ND ug/m3 270 58 EPA-TO-15 ND A01 1 Methyl isobutyl ketone ND ug/m3 680 96 EPA-TO-15 ND A01 1 Methyl t-butyl ether ND ug/m3 270 49 EPA-TO-15 ND A01 1 Propylene ND ug/m3 270 12 EPA-TO-15 ND A01 1 Styrene ND ug/m3 680 52 EPA-TO-15 ND A01 1 1,1,2,2-Tetrachloroethane ND ug/m3 680 150 EPA-TO-15 ND A01 1 Tetrachloroethene 300 ug/m3 270 47 EPA-TO-15 ND A01 1 Tetrahydrofuran ND ug/m3 270 58 EPA-TO-15 ND A01 1 Toluene ND ug/m3 270 26 EPA-TO-15 ND A01 1 1,2,4-Trichlorobenzene ND ug/m3 1400 79 EPA-TO-15 ND A01 1 1,1,1-Trichloroethane ND ug/m3 680 38 EPA-TO-15 ND A01 1 1,1,2-Trichloroethane ND ug/m3 680 38 EPA-TO-15 ND A01 1 Trichloroethene ND ug/m3 270 52 EPA-TO-15 ND A01 1 Trichlorofluoromethane ND ug/m3 680 41 EPA-TO-15 ND A01 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND ug/m3 680 53 EPA-TO-15 ND A01 1 1,2,4-Trimethylbenzene ND ug/m3 680 88 EPA-TO-15 ND A01 1 1,3,5-Trimethylbenzene ND ug/m3 680 210 EPA-TO-15 ND A01 1 Vinyl acetate ND ug/m3 270 42 EPA-TO-15 ND A01 1 Vinyl chloride ND ug/m3 270 40 EPA-TO-15 ND A01 1 p- & m-Xylenes 250 ug/m3 680 110 EPA-TO-15 ND J,A01 1 o-Xylene 100 ug/m3 680 73 EPA-TO-15 ND J,A01 1 Total Xylenes 350 ug/m3 1400 190 EPA-TO-15 ND J,A01 1 4-Bromofluorobenzene (Surrogate) 91.9 % 70 - 130 (LCL - UCL) EPA-TO-15 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 13 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-02 Client Sample Name: Virginia Cleaners, SV-1-15, 11/1/2018 11:30:00AM, Stephen C. Run QC Run # Method Prep Date Date/Time Analyst Instrument Dilution Batch ID 1 EPA-TO-15 11/07/18 12:43 11/07/18 22:00 BEP MS-A2 137 B029418

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 14 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-03 Client Sample Name: Virginia Cleaners, SV-2-5, 11/1/2018 11:44:00AM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Acetone ND ug/m3 86 6.7 EPA-TO-15 ND A01 1 Acrylonitrile ND ug/m3 35 3.8 EPA-TO-15 ND A01 1 Allyl chloride ND ug/m3 35 4.5 EPA-TO-15 ND A01 1 Benzene ND ug/m3 35 2.8 EPA-TO-15 ND A01 1 Benzyl chloride ND ug/m3 170 11 EPA-TO-15 ND A01 1 Bromodichloromethane ND ug/m3 86 6.9 EPA-TO-15 ND A01 1 Bromoform ND ug/m3 170 12 EPA-TO-15 ND A01 1 Bromomethane ND ug/m3 35 9.5 EPA-TO-15 ND A01 1 1,3-Butadiene ND ug/m3 35 4.3 EPA-TO-15 ND A01 1 Carbon disulfide ND ug/m3 35 2.8 EPA-TO-15 ND A01 1 Carbon tetrachloride ND ug/m3 86 6.6 EPA-TO-15 ND A01 1 Chlorobenzene ND ug/m3 86 5.7 EPA-TO-15 ND A01 1 Chloroethane ND ug/m3 35 5.5 EPA-TO-15 ND A01 1 Chloroform ND ug/m3 86 4.3 EPA-TO-15 ND A01 1 Chloromethane ND ug/m3 35 5.0 EPA-TO-15 ND A01 1 Cyclohexane ND ug/m3 35 3.1 EPA-TO-15 ND A01 1 Dibromochloromethane ND ug/m3 86 7.4 EPA-TO-15 ND A01 1 1,2-Dibromoethane ND ug/m3 86 7.1 EPA-TO-15 ND A01 1 1,2-Dichlorobenzene ND ug/m3 86 6.7 EPA-TO-15 ND A01 1 1,3-Dichlorobenzene ND ug/m3 86 11 EPA-TO-15 ND A01 1 1,4-Dichlorobenzene ND ug/m3 86 9.5 EPA-TO-15 ND A01 1 Dichlorodifluoromethane ND ug/m3 86 6.6 EPA-TO-15 ND A01 1 1,1-Dichloroethane ND ug/m3 86 4.8 EPA-TO-15 ND A01 1 1,2-Dichloroethane ND ug/m3 86 3.6 EPA-TO-15 ND A01 1 1,1-Dichloroethene ND ug/m3 86 3.5 EPA-TO-15 ND A01 1 cis-1,2-Dichloroethene ND ug/m3 35 4.0 EPA-TO-15 ND A01 1 trans-1,2-Dichloroethene ND ug/m3 35 3.5 EPA-TO-15 ND A01 1 1,2-Dichloropropane ND ug/m3 86 5.2 EPA-TO-15 ND A01 1 cis-1,3-Dichloropropene ND ug/m3 86 4.0 EPA-TO-15 ND A01 1 trans-1,3-Dichloropropene ND ug/m3 86 5.2 EPA-TO-15 ND A01 1 1,2-Dichloro-1,1,2,2-tetrafluoroethane ND ug/m3 86 13 EPA-TO-15 ND A01 1 1,1-Difluoroethane ND ug/m3 86 35 EPA-TO-15 ND A01 1 1,4-Dioxane ND ug/m3 35 9.3 EPA-TO-15 ND A01 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 15 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-03 Client Sample Name: Virginia Cleaners, SV-2-5, 11/1/2018 11:44:00AM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Ethanol ND ug/m3 35 13 EPA-TO-15 ND A01 1 Ethyl acetate ND ug/m3 35 6.9 EPA-TO-15 ND A01 1 Ethylbenzene ND ug/m3 86 6.2 EPA-TO-15 ND A01 1 1-Ethyl-4-methylbenzene ND ug/m3 86 9.5 EPA-TO-15 ND A01 1 n-Heptane ND ug/m3 35 5.2 EPA-TO-15 ND A01 1 Hexachlorobutadiene ND ug/m3 170 43 EPA-TO-15 ND A01 1 Hexane ND ug/m3 86 3.5 EPA-TO-15 ND A01 1 2-Hexanone ND ug/m3 86 5.9 EPA-TO-15 ND A01 1 Isopropyl alcohol ND ug/m3 35 8.1 EPA-TO-15 ND A01 1 Methylene chloride ND ug/m3 170 4.2 EPA-TO-15 ND A01 1 Methyl ethyl ketone ND ug/m3 35 7.3 EPA-TO-15 ND A01 1 Methyl isobutyl ketone ND ug/m3 86 12 EPA-TO-15 ND A01 1 Methyl t-butyl ether ND ug/m3 35 6.2 EPA-TO-15 ND A01 1 Propylene ND ug/m3 35 1.6 EPA-TO-15 ND A01 1 Styrene ND ug/m3 86 6.6 EPA-TO-15 ND A01 1 1,1,2,2-Tetrachloroethane ND ug/m3 86 19 EPA-TO-15 ND A01 1 Tetrachloroethene 390 ug/m3 35 5.9 EPA-TO-15 ND A01 1 Tetrahydrofuran ND ug/m3 35 7.3 EPA-TO-15 ND A01 1 Toluene 25 ug/m3 35 3.3 EPA-TO-15 ND J,A01 1 1,2,4-Trichlorobenzene ND ug/m3 170 10 EPA-TO-15 ND A01 1 1,1,1-Trichloroethane ND ug/m3 86 4.8 EPA-TO-15 ND A01 1 1,1,2-Trichloroethane ND ug/m3 86 4.8 EPA-TO-15 ND A01 1 Trichloroethene ND ug/m3 35 6.6 EPA-TO-15 ND A01 1 Trichlorofluoromethane ND ug/m3 86 5.2 EPA-TO-15 ND A01 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND ug/m3 86 6.7 EPA-TO-15 ND A01 1 1,2,4-Trimethylbenzene ND ug/m3 86 11 EPA-TO-15 ND A01 1 1,3,5-Trimethylbenzene ND ug/m3 86 26 EPA-TO-15 ND A01 1 Vinyl acetate ND ug/m3 35 5.4 EPA-TO-15 ND A01 1 Vinyl chloride ND ug/m3 35 5.0 EPA-TO-15 ND A01 1 p- & m-Xylenes 14 ug/m3 86 14 EPA-TO-15 ND J,A01 1 o-Xylene ND ug/m3 86 9.2 EPA-TO-15 ND A01 1 Total Xylenes ND ug/m3 170 24 EPA-TO-15 ND A01 1 4-Bromofluorobenzene (Surrogate) 89.5 % 70 - 130 (LCL - UCL) EPA-TO-15 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 16 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-03 Client Sample Name: Virginia Cleaners, SV-2-5, 11/1/2018 11:44:00AM, Stephen C. Run QC Run # Method Prep Date Date/Time Analyst Instrument Dilution Batch ID 1 EPA-TO-15 11/07/18 12:43 11/07/18 22:33 BEP MS-A2 17.300 B029418

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 17 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-04 Client Sample Name: Virginia Cleaners, SV-2-15, 11/1/2018 11:46:00AM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Acetone 11000 ug/m3 12000 940 EPA-TO-15 ND J,A01 1 Acrylonitrile ND ug/m3 4800 530 EPA-TO-15 ND A01 1 Allyl chloride ND ug/m3 4800 630 EPA-TO-15 ND A01 1 Benzene ND ug/m3 4800 390 EPA-TO-15 ND A01 1 Benzyl chloride ND ug/m3 24000 1500 EPA-TO-15 ND A01 1 Bromodichloromethane ND ug/m3 12000 970 EPA-TO-15 ND A01 1 Bromoform ND ug/m3 24000 1700 EPA-TO-15 ND A01 1 Bromomethane ND ug/m3 4800 1300 EPA-TO-15 ND A01 1 1,3-Butadiene ND ug/m3 4800 600 EPA-TO-15 ND A01 1 Carbon disulfide ND ug/m3 4800 390 EPA-TO-15 ND A01 1 Carbon tetrachloride ND ug/m3 12000 920 EPA-TO-15 ND A01 1 Chlorobenzene ND ug/m3 12000 800 EPA-TO-15 ND A01 1 Chloroethane ND ug/m3 4800 770 EPA-TO-15 ND A01 1 Chloroform ND ug/m3 12000 600 EPA-TO-15 ND A01 1 Chloromethane ND ug/m3 4800 700 EPA-TO-15 ND A01 1 Cyclohexane ND ug/m3 4800 440 EPA-TO-15 ND A01 1 Dibromochloromethane ND ug/m3 12000 1000 EPA-TO-15 ND A01 1 1,2-Dibromoethane ND ug/m3 12000 990 EPA-TO-15 ND A01 1 1,2-Dichlorobenzene ND ug/m3 12000 940 EPA-TO-15 ND A01 1 1,3-Dichlorobenzene ND ug/m3 12000 1500 EPA-TO-15 ND A01 1 1,4-Dichlorobenzene ND ug/m3 12000 1300 EPA-TO-15 ND A01 1 Dichlorodifluoromethane ND ug/m3 12000 920 EPA-TO-15 ND A01 1 1,1-Dichloroethane ND ug/m3 12000 680 EPA-TO-15 ND A01 1 1,2-Dichloroethane ND ug/m3 12000 510 EPA-TO-15 ND A01 1 1,1-Dichloroethene ND ug/m3 12000 480 EPA-TO-15 ND A01 1 cis-1,2-Dichloroethene ND ug/m3 4800 560 EPA-TO-15 ND A01 1 trans-1,2-Dichloroethene ND ug/m3 4800 480 EPA-TO-15 ND A01 1 1,2-Dichloropropane ND ug/m3 12000 730 EPA-TO-15 ND A01 1 cis-1,3-Dichloropropene ND ug/m3 12000 560 EPA-TO-15 ND A01 1 trans-1,3-Dichloropropene ND ug/m3 12000 730 EPA-TO-15 ND A01 1 1,2-Dichloro-1,1,2,2-tetrafluoroethane ND ug/m3 12000 1900 EPA-TO-15 ND A01 1 1,1-Difluoroethane ND ug/m3 12000 4800 EPA-TO-15 ND A01 1 1,4-Dioxane ND ug/m3 4800 1300 EPA-TO-15 ND A01 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 18 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-04 Client Sample Name: Virginia Cleaners, SV-2-15, 11/1/2018 11:46:00AM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Ethanol ND ug/m3 4800 1800 EPA-TO-15 ND A01 1 Ethyl acetate ND ug/m3 4800 970 EPA-TO-15 ND A01 1 Ethylbenzene ND ug/m3 12000 870 EPA-TO-15 ND A01 1 1-Ethyl-4-methylbenzene ND ug/m3 12000 1300 EPA-TO-15 ND A01 1 n-Heptane ND ug/m3 4800 730 EPA-TO-15 ND A01 1 Hexachlorobutadiene ND ug/m3 24000 6000 EPA-TO-15 ND A01 1 Hexane ND ug/m3 12000 480 EPA-TO-15 ND A01 1 2-Hexanone ND ug/m3 12000 820 EPA-TO-15 ND A01 1 Isopropyl alcohol ND ug/m3 4800 1100 EPA-TO-15 ND A01 1 Methylene chloride ND ug/m3 24000 580 EPA-TO-15 ND A01 1 Methyl ethyl ketone ND ug/m3 4800 1000 EPA-TO-15 ND A01 1 Methyl isobutyl ketone ND ug/m3 12000 1700 EPA-TO-15 ND A01 1 Methyl t-butyl ether ND ug/m3 4800 870 EPA-TO-15 ND A01 1 Propylene ND ug/m3 4800 220 EPA-TO-15 ND A01 1 Styrene ND ug/m3 12000 920 EPA-TO-15 ND A01 1 1,1,2,2-Tetrachloroethane ND ug/m3 12000 2700 EPA-TO-15 ND A01 1 Tetrachloroethene ND ug/m3 4800 820 EPA-TO-15 ND A01 1 Tetrahydrofuran ND ug/m3 4800 1000 EPA-TO-15 ND A01 1 Toluene ND ug/m3 4800 460 EPA-TO-15 ND A01 1 1,2,4-Trichlorobenzene ND ug/m3 24000 1400 EPA-TO-15 ND A01 1 1,1,1-Trichloroethane ND ug/m3 12000 680 EPA-TO-15 ND A01 1 1,1,2-Trichloroethane ND ug/m3 12000 680 EPA-TO-15 ND A01 1 Trichloroethene ND ug/m3 4800 920 EPA-TO-15 ND A01 1 Trichlorofluoromethane ND ug/m3 12000 730 EPA-TO-15 ND A01 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND ug/m3 12000 940 EPA-TO-15 ND A01 1 1,2,4-Trimethylbenzene ND ug/m3 12000 1500 EPA-TO-15 ND A01 1 1,3,5-Trimethylbenzene ND ug/m3 12000 3600 EPA-TO-15 ND A01 1 Vinyl acetate ND ug/m3 4800 750 EPA-TO-15 ND A01 1 Vinyl chloride ND ug/m3 4800 700 EPA-TO-15 ND A01 1 p- & m-Xylenes ND ug/m3 12000 2000 EPA-TO-15 ND A01 1 o-Xylene ND ug/m3 12000 1300 EPA-TO-15 ND A01 1 Total Xylenes ND ug/m3 24000 3400 EPA-TO-15 ND A01 1 4-Bromofluorobenzene (Surrogate) 88.8 % 70 - 130 (LCL - UCL) EPA-TO-15 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 19 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-04 Client Sample Name: Virginia Cleaners, SV-2-15, 11/1/2018 11:46:00AM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # 4-Bromofluorobenzene (Surrogate) 77.8 % 70 - 130 (LCL - UCL) EPA-TO-15 2

Run QC Run # Method Prep Date Date/Time Analyst Instrument Dilution Batch ID 1 EPA-TO-15 11/12/18 08:51 11/12/18 17:22 BEP MS-A1 2420 B029798

2 EPA-TO-15 11/12/18 08:51 11/12/18 16:52 BEP MS-A1 1 B029798

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 20 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-05 Client Sample Name: Virginia Cleaners, SV-3-5, 11/1/2018 11:58:00AM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Acetone 4700 ug/m3 500 39 EPA-TO-15 ND A01 1 Acrylonitrile ND ug/m3 200 22 EPA-TO-15 ND A01 1 Allyl chloride ND ug/m3 200 26 EPA-TO-15 ND A01 1 Benzene ND ug/m3 200 16 EPA-TO-15 ND A01 1 Benzyl chloride ND ug/m3 1000 63 EPA-TO-15 ND A01 1 Bromodichloromethane ND ug/m3 500 40 EPA-TO-15 ND A01 1 Bromoform ND ug/m3 1000 71 EPA-TO-15 ND A01 1 Bromomethane ND ug/m3 200 55 EPA-TO-15 ND A01 1 1,3-Butadiene ND ug/m3 200 25 EPA-TO-15 ND A01 1 Carbon disulfide ND ug/m3 200 16 EPA-TO-15 ND A01 1 Carbon tetrachloride ND ug/m3 500 38 EPA-TO-15 ND A01 1 Chlorobenzene ND ug/m3 500 33 EPA-TO-15 ND A01 1 Chloroethane ND ug/m3 200 32 EPA-TO-15 ND A01 1 Chloroform ND ug/m3 500 25 EPA-TO-15 ND A01 1 Chloromethane ND ug/m3 200 29 EPA-TO-15 ND A01 1 Cyclohexane ND ug/m3 200 18 EPA-TO-15 ND A01 1 Dibromochloromethane ND ug/m3 500 43 EPA-TO-15 ND A01 1 1,2-Dibromoethane ND ug/m3 500 41 EPA-TO-15 ND A01 1 1,2-Dichlorobenzene ND ug/m3 500 39 EPA-TO-15 ND A01 1 1,3-Dichlorobenzene ND ug/m3 500 61 EPA-TO-15 ND A01 1 1,4-Dichlorobenzene ND ug/m3 500 55 EPA-TO-15 ND A01 1 Dichlorodifluoromethane ND ug/m3 500 38 EPA-TO-15 ND A01 1 1,1-Dichloroethane ND ug/m3 500 28 EPA-TO-15 ND A01 1 1,2-Dichloroethane ND ug/m3 500 21 EPA-TO-15 ND A01 1 1,1-Dichloroethene ND ug/m3 500 20 EPA-TO-15 ND A01 1 cis-1,2-Dichloroethene ND ug/m3 200 23 EPA-TO-15 ND A01 1 trans-1,2-Dichloroethene ND ug/m3 200 20 EPA-TO-15 ND A01 1 1,2-Dichloropropane ND ug/m3 500 30 EPA-TO-15 ND A01 1 cis-1,3-Dichloropropene ND ug/m3 500 23 EPA-TO-15 ND A01 1 trans-1,3-Dichloropropene ND ug/m3 500 30 EPA-TO-15 ND A01 1 1,2-Dichloro-1,1,2,2-tetrafluoroethane ND ug/m3 500 77 EPA-TO-15 ND A01 1 1,1-Difluoroethane ND ug/m3 500 200 EPA-TO-15 ND A01 1 1,4-Dioxane ND ug/m3 200 54 EPA-TO-15 ND A01 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 21 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-05 Client Sample Name: Virginia Cleaners, SV-3-5, 11/1/2018 11:58:00AM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Ethanol ND ug/m3 200 74 EPA-TO-15 ND A01 1 Ethyl acetate ND ug/m3 200 40 EPA-TO-15 ND A01 1 Ethylbenzene 69 ug/m3 500 36 EPA-TO-15 ND J,A01 1 1-Ethyl-4-methylbenzene ND ug/m3 500 55 EPA-TO-15 ND A01 1 n-Heptane ND ug/m3 200 30 EPA-TO-15 ND A01 1 Hexachlorobutadiene ND ug/m3 1000 250 EPA-TO-15 ND A01 1 Hexane ND ug/m3 500 20 EPA-TO-15 ND A01 1 2-Hexanone ND ug/m3 500 34 EPA-TO-15 ND A01 1 Isopropyl alcohol ND ug/m3 200 47 EPA-TO-15 ND A01 1 Methylene chloride ND ug/m3 1000 24 EPA-TO-15 ND A01 1 Methyl ethyl ketone ND ug/m3 200 42 EPA-TO-15 ND A01 1 Methyl isobutyl ketone ND ug/m3 500 70 EPA-TO-15 ND A01 1 Methyl t-butyl ether ND ug/m3 200 36 EPA-TO-15 ND A01 1 Propylene ND ug/m3 200 9.0 EPA-TO-15 ND A01 1 Styrene ND ug/m3 500 38 EPA-TO-15 ND A01 1 1,1,2,2-Tetrachloroethane ND ug/m3 500 110 EPA-TO-15 ND A01 1 Tetrachloroethene 1100 ug/m3 200 34 EPA-TO-15 ND A01 1 Tetrahydrofuran ND ug/m3 200 42 EPA-TO-15 ND A01 1 Toluene 460 ug/m3 200 19 EPA-TO-15 ND A01 1 1,2,4-Trichlorobenzene ND ug/m3 1000 58 EPA-TO-15 ND A01 1 1,1,1-Trichloroethane ND ug/m3 500 28 EPA-TO-15 ND A01 1 1,1,2-Trichloroethane ND ug/m3 500 28 EPA-TO-15 ND A01 1 Trichloroethene ND ug/m3 200 38 EPA-TO-15 ND A01 1 Trichlorofluoromethane ND ug/m3 500 30 EPA-TO-15 ND A01 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND ug/m3 500 39 EPA-TO-15 ND A01 1 1,2,4-Trimethylbenzene ND ug/m3 500 64 EPA-TO-15 ND A01 1 1,3,5-Trimethylbenzene ND ug/m3 500 150 EPA-TO-15 ND A01 1 Vinyl acetate ND ug/m3 200 31 EPA-TO-15 ND A01 1 Vinyl chloride ND ug/m3 200 29 EPA-TO-15 ND A01 1 p- & m-Xylenes 290 ug/m3 500 83 EPA-TO-15 ND J,A01 1 o-Xylene 120 ug/m3 500 53 EPA-TO-15 ND J,A01 1 Total Xylenes 400 ug/m3 1000 140 EPA-TO-15 ND J,A01 1 4-Bromofluorobenzene (Surrogate) 121 % 70 - 130 (LCL - UCL) EPA-TO-15 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 22 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-05 Client Sample Name: Virginia Cleaners, SV-3-5, 11/1/2018 11:58:00AM, Stephen C. Run QC Run # Method Prep Date Date/Time Analyst Instrument Dilution Batch ID 1 EPA-TO-15 11/08/18 12:01 11/08/18 14:34 BEP MS-A2 100 B029542

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 23 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-06 Client Sample Name: Virginia Cleaners, SV-3-15, 11/1/2018 12:03:00PM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Acetone 9800 ug/m3 500 39 EPA-TO-15 ND A01 1 Acrylonitrile ND ug/m3 200 22 EPA-TO-15 ND A01 1 Allyl chloride ND ug/m3 200 26 EPA-TO-15 ND A01 1 Benzene 45 ug/m3 200 16 EPA-TO-15 ND J,A01 1 Benzyl chloride ND ug/m3 1000 63 EPA-TO-15 ND A01 1 Bromodichloromethane ND ug/m3 500 40 EPA-TO-15 ND A01 1 Bromoform ND ug/m3 1000 71 EPA-TO-15 ND A01 1 Bromomethane ND ug/m3 200 55 EPA-TO-15 ND A01 1 1,3-Butadiene ND ug/m3 200 25 EPA-TO-15 ND A01 1 Carbon disulfide ND ug/m3 200 16 EPA-TO-15 ND A01 1 Carbon tetrachloride ND ug/m3 500 38 EPA-TO-15 ND A01 1 Chlorobenzene ND ug/m3 500 33 EPA-TO-15 ND A01 1 Chloroethane ND ug/m3 200 32 EPA-TO-15 ND A01 1 Chloroform ND ug/m3 500 25 EPA-TO-15 ND A01 1 Chloromethane ND ug/m3 200 29 EPA-TO-15 ND A01 1 Cyclohexane ND ug/m3 200 18 EPA-TO-15 ND A01 1 Dibromochloromethane ND ug/m3 500 43 EPA-TO-15 ND A01 1 1,2-Dibromoethane ND ug/m3 500 41 EPA-TO-15 ND A01 1 1,2-Dichlorobenzene ND ug/m3 500 39 EPA-TO-15 ND A01 1 1,3-Dichlorobenzene ND ug/m3 500 61 EPA-TO-15 ND A01 1 1,4-Dichlorobenzene ND ug/m3 500 55 EPA-TO-15 ND A01 1 Dichlorodifluoromethane ND ug/m3 500 38 EPA-TO-15 ND A01 1 1,1-Dichloroethane ND ug/m3 500 28 EPA-TO-15 ND A01 1 1,2-Dichloroethane ND ug/m3 500 21 EPA-TO-15 ND A01 1 1,1-Dichloroethene ND ug/m3 500 20 EPA-TO-15 ND A01 1 cis-1,2-Dichloroethene ND ug/m3 200 23 EPA-TO-15 ND A01 1 trans-1,2-Dichloroethene ND ug/m3 200 20 EPA-TO-15 ND A01 1 1,2-Dichloropropane ND ug/m3 500 30 EPA-TO-15 ND A01 1 cis-1,3-Dichloropropene ND ug/m3 500 23 EPA-TO-15 ND A01 1 trans-1,3-Dichloropropene ND ug/m3 500 30 EPA-TO-15 ND A01 1 1,2-Dichloro-1,1,2,2-tetrafluoroethane ND ug/m3 500 77 EPA-TO-15 ND A01 1 1,1-Difluoroethane ND ug/m3 500 200 EPA-TO-15 ND A01 1 1,4-Dioxane ND ug/m3 200 54 EPA-TO-15 ND A01 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 24 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-06 Client Sample Name: Virginia Cleaners, SV-3-15, 11/1/2018 12:03:00PM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Ethanol ND ug/m3 200 74 EPA-TO-15 ND A01 1 Ethyl acetate ND ug/m3 200 40 EPA-TO-15 ND A01 1 Ethylbenzene 61 ug/m3 500 36 EPA-TO-15 ND J,A01 1 1-Ethyl-4-methylbenzene ND ug/m3 500 55 EPA-TO-15 ND A01 1 n-Heptane ND ug/m3 200 30 EPA-TO-15 ND A01 1 Hexachlorobutadiene ND ug/m3 1000 250 EPA-TO-15 ND A01 1 Hexane ND ug/m3 500 20 EPA-TO-15 ND A01 1 2-Hexanone ND ug/m3 500 34 EPA-TO-15 ND A01 1 Isopropyl alcohol ND ug/m3 200 47 EPA-TO-15 ND A01 1 Methylene chloride ND ug/m3 1000 24 EPA-TO-15 ND A01 1 Methyl ethyl ketone ND ug/m3 200 42 EPA-TO-15 ND A01 1 Methyl isobutyl ketone ND ug/m3 500 70 EPA-TO-15 ND A01 1 Methyl t-butyl ether ND ug/m3 200 36 EPA-TO-15 ND A01 1 Propylene ND ug/m3 200 9.0 EPA-TO-15 ND A01 1 Styrene ND ug/m3 500 38 EPA-TO-15 ND A01 1 1,1,2,2-Tetrachloroethane ND ug/m3 500 110 EPA-TO-15 ND A01 1 Tetrachloroethene 28000 ug/m3 200 34 EPA-TO-15 ND A01 1 Tetrahydrofuran ND ug/m3 200 42 EPA-TO-15 ND A01 1 Toluene 390 ug/m3 200 19 EPA-TO-15 ND A01 1 1,2,4-Trichlorobenzene ND ug/m3 1000 58 EPA-TO-15 ND A01 1 1,1,1-Trichloroethane ND ug/m3 500 28 EPA-TO-15 ND A01 1 1,1,2-Trichloroethane 140 ug/m3 500 28 EPA-TO-15 ND J,A01 1 Trichloroethene 250 ug/m3 200 38 EPA-TO-15 ND A01 1 Trichlorofluoromethane ND ug/m3 500 30 EPA-TO-15 ND A01 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND ug/m3 500 39 EPA-TO-15 ND A01 1 1,2,4-Trimethylbenzene ND ug/m3 500 64 EPA-TO-15 ND A01 1 1,3,5-Trimethylbenzene ND ug/m3 500 150 EPA-TO-15 ND A01 1 Vinyl acetate ND ug/m3 200 31 EPA-TO-15 ND A01 1 Vinyl chloride ND ug/m3 200 29 EPA-TO-15 ND A01 1 p- & m-Xylenes 160 ug/m3 500 83 EPA-TO-15 ND J,A01 1 o-Xylene ND ug/m3 500 53 EPA-TO-15 ND A01 1 Total Xylenes 210 ug/m3 1000 140 EPA-TO-15 ND J,A01 1 4-Bromofluorobenzene (Surrogate) 101 % 70 - 130 (LCL - UCL) EPA-TO-15 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 25 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-06 Client Sample Name: Virginia Cleaners, SV-3-15, 11/1/2018 12:03:00PM, Stephen C. Run QC Run # Method Prep Date Date/Time Analyst Instrument Dilution Batch ID 1 EPA-TO-15 11/08/18 12:01 11/08/18 15:12 BEP MS-A2 100 B029542

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 26 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-07 Client Sample Name: Virginia Cleaners, SV-4-5, 11/1/2018 12:25:00PM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Acetone 3800 ug/m3 500 39 EPA-TO-15 ND A01 1 Acrylonitrile ND ug/m3 200 22 EPA-TO-15 ND A01 1 Allyl chloride ND ug/m3 200 26 EPA-TO-15 ND A01 1 Benzene ND ug/m3 200 16 EPA-TO-15 ND A01 1 Benzyl chloride ND ug/m3 1000 63 EPA-TO-15 ND A01 1 Bromodichloromethane ND ug/m3 500 40 EPA-TO-15 ND A01 1 Bromoform ND ug/m3 1000 71 EPA-TO-15 ND A01 1 Bromomethane ND ug/m3 200 55 EPA-TO-15 ND A01 1 1,3-Butadiene ND ug/m3 200 25 EPA-TO-15 ND A01 1 Carbon disulfide ND ug/m3 200 16 EPA-TO-15 ND A01 1 Carbon tetrachloride ND ug/m3 500 38 EPA-TO-15 ND A01 1 Chlorobenzene ND ug/m3 500 33 EPA-TO-15 ND A01 1 Chloroethane ND ug/m3 200 32 EPA-TO-15 ND A01 1 Chloroform 63 ug/m3 500 25 EPA-TO-15 ND J,A01 1 Chloromethane ND ug/m3 200 29 EPA-TO-15 ND A01 1 Cyclohexane ND ug/m3 200 18 EPA-TO-15 ND A01 1 Dibromochloromethane ND ug/m3 500 43 EPA-TO-15 ND A01 1 1,2-Dibromoethane ND ug/m3 500 41 EPA-TO-15 ND A01 1 1,2-Dichlorobenzene ND ug/m3 500 39 EPA-TO-15 ND A01 1 1,3-Dichlorobenzene ND ug/m3 500 61 EPA-TO-15 ND A01 1 1,4-Dichlorobenzene ND ug/m3 500 55 EPA-TO-15 ND A01 1 Dichlorodifluoromethane ND ug/m3 500 38 EPA-TO-15 ND A01 1 1,1-Dichloroethane ND ug/m3 500 28 EPA-TO-15 ND A01 1 1,2-Dichloroethane ND ug/m3 500 21 EPA-TO-15 ND A01 1 1,1-Dichloroethene ND ug/m3 500 20 EPA-TO-15 ND A01 1 cis-1,2-Dichloroethene ND ug/m3 200 23 EPA-TO-15 ND A01 1 trans-1,2-Dichloroethene ND ug/m3 200 20 EPA-TO-15 ND A01 1 1,2-Dichloropropane ND ug/m3 500 30 EPA-TO-15 ND A01 1 cis-1,3-Dichloropropene ND ug/m3 500 23 EPA-TO-15 ND A01 1 trans-1,3-Dichloropropene ND ug/m3 500 30 EPA-TO-15 ND A01 1 1,2-Dichloro-1,1,2,2-tetrafluoroethane ND ug/m3 500 77 EPA-TO-15 ND A01 1 1,1-Difluoroethane ND ug/m3 500 200 EPA-TO-15 ND A01 1 1,4-Dioxane ND ug/m3 200 54 EPA-TO-15 ND A01 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 27 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-07 Client Sample Name: Virginia Cleaners, SV-4-5, 11/1/2018 12:25:00PM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Ethanol ND ug/m3 200 74 EPA-TO-15 ND A01 1 Ethyl acetate ND ug/m3 200 40 EPA-TO-15 ND A01 1 Ethylbenzene ND ug/m3 500 36 EPA-TO-15 ND A01 1 1-Ethyl-4-methylbenzene ND ug/m3 500 55 EPA-TO-15 ND A01 1 n-Heptane ND ug/m3 200 30 EPA-TO-15 ND A01 1 Hexachlorobutadiene ND ug/m3 1000 250 EPA-TO-15 ND A01 1 Hexane ND ug/m3 500 20 EPA-TO-15 ND A01 1 2-Hexanone ND ug/m3 500 34 EPA-TO-15 ND A01 1 Isopropyl alcohol ND ug/m3 200 47 EPA-TO-15 ND A01 1 Methylene chloride ND ug/m3 1000 24 EPA-TO-15 ND A01 1 Methyl ethyl ketone ND ug/m3 200 42 EPA-TO-15 ND A01 1 Methyl isobutyl ketone ND ug/m3 500 70 EPA-TO-15 ND A01 1 Methyl t-butyl ether ND ug/m3 200 36 EPA-TO-15 ND A01 1 Propylene ND ug/m3 200 9.0 EPA-TO-15 ND A01 1 Styrene ND ug/m3 500 38 EPA-TO-15 ND A01 1 1,1,2,2-Tetrachloroethane ND ug/m3 500 110 EPA-TO-15 ND A01 1 Tetrachloroethene 23000 ug/m3 200 34 EPA-TO-15 ND A01 1 Tetrahydrofuran ND ug/m3 200 42 EPA-TO-15 ND A01 1 Toluene ND ug/m3 200 19 EPA-TO-15 ND A01 1 1,2,4-Trichlorobenzene ND ug/m3 1000 58 EPA-TO-15 ND A01 1 1,1,1-Trichloroethane ND ug/m3 500 28 EPA-TO-15 ND A01 1 1,1,2-Trichloroethane 550 ug/m3 500 28 EPA-TO-15 ND A01 1 Trichloroethene ND ug/m3 200 38 EPA-TO-15 ND A01 1 Trichlorofluoromethane ND ug/m3 500 30 EPA-TO-15 ND A01 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND ug/m3 500 39 EPA-TO-15 ND A01 1 1,2,4-Trimethylbenzene ND ug/m3 500 64 EPA-TO-15 ND A01 1 1,3,5-Trimethylbenzene ND ug/m3 500 150 EPA-TO-15 ND A01 1 Vinyl acetate ND ug/m3 200 31 EPA-TO-15 ND A01 1 Vinyl chloride ND ug/m3 200 29 EPA-TO-15 ND A01 1 p- & m-Xylenes ND ug/m3 500 83 EPA-TO-15 ND A01 1 o-Xylene ND ug/m3 500 53 EPA-TO-15 ND A01 1 Total Xylenes ND ug/m3 1000 140 EPA-TO-15 ND A01 1 4-Bromofluorobenzene (Surrogate) 80.9 % 70 - 130 (LCL - UCL) EPA-TO-15 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 28 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-07 Client Sample Name: Virginia Cleaners, SV-4-5, 11/1/2018 12:25:00PM, Stephen C. Run QC Run # Method Prep Date Date/Time Analyst Instrument Dilution Batch ID 1 EPA-TO-15 11/09/18 08:07 11/10/18 01:33 BEP MS-A2 100 B029725

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 29 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-08 Client Sample Name: Virginia Cleaners, SV-4-15, 11/1/2018 12:23:00PM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Acetone 17000 ug/m3 1400 110 EPA-TO-15 ND A01 1 Acrylonitrile ND ug/m3 570 62 EPA-TO-15 ND A01 1 Allyl chloride ND ug/m3 570 74 EPA-TO-15 ND A01 1 Benzene ND ug/m3 570 45 EPA-TO-15 ND A01 1 Benzyl chloride ND ug/m3 2800 180 EPA-TO-15 ND A01 1 Bromodichloromethane ND ug/m3 1400 110 EPA-TO-15 ND A01 1 Bromoform ND ug/m3 2800 200 EPA-TO-15 ND A01 1 Bromomethane ND ug/m3 570 160 EPA-TO-15 ND A01 1 1,3-Butadiene ND ug/m3 570 71 EPA-TO-15 ND A01 1 Carbon disulfide ND ug/m3 570 45 EPA-TO-15 ND A01 1 Carbon tetrachloride ND ug/m3 1400 110 EPA-TO-15 ND A01 1 Chlorobenzene ND ug/m3 1400 94 EPA-TO-15 ND A01 1 Chloroethane ND ug/m3 570 91 EPA-TO-15 ND A01 1 Chloroform ND ug/m3 1400 71 EPA-TO-15 ND A01 1 Chloromethane ND ug/m3 570 82 EPA-TO-15 ND A01 1 Cyclohexane ND ug/m3 570 51 EPA-TO-15 ND A01 1 Dibromochloromethane ND ug/m3 1400 120 EPA-TO-15 ND A01 1 1,2-Dibromoethane ND ug/m3 1400 120 EPA-TO-15 ND A01 1 1,2-Dichlorobenzene ND ug/m3 1400 110 EPA-TO-15 ND A01 1 1,3-Dichlorobenzene ND ug/m3 1400 170 EPA-TO-15 ND A01 1 1,4-Dichlorobenzene ND ug/m3 1400 160 EPA-TO-15 ND A01 1 Dichlorodifluoromethane ND ug/m3 1400 110 EPA-TO-15 ND A01 1 1,1-Dichloroethane ND ug/m3 1400 80 EPA-TO-15 ND A01 1 1,2-Dichloroethane 430 ug/m3 1400 60 EPA-TO-15 ND J,A01 1 1,1-Dichloroethene ND ug/m3 1400 57 EPA-TO-15 ND A01 1 cis-1,2-Dichloroethene ND ug/m3 570 65 EPA-TO-15 ND A01 1 trans-1,2-Dichloroethene ND ug/m3 570 57 EPA-TO-15 ND A01 1 1,2-Dichloropropane ND ug/m3 1400 85 EPA-TO-15 ND A01 1 cis-1,3-Dichloropropene ND ug/m3 1400 65 EPA-TO-15 ND A01 1 trans-1,3-Dichloropropene ND ug/m3 1400 85 EPA-TO-15 ND A01 1 1,2-Dichloro-1,1,2,2-tetrafluoroethane ND ug/m3 1400 220 EPA-TO-15 ND A01 1 1,1-Difluoroethane ND ug/m3 1400 570 EPA-TO-15 ND A01 1 1,4-Dioxane ND ug/m3 570 150 EPA-TO-15 ND A01 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 30 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-08 Client Sample Name: Virginia Cleaners, SV-4-15, 11/1/2018 12:23:00PM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Ethanol ND ug/m3 570 210 EPA-TO-15 ND A01 1 Ethyl acetate ND ug/m3 570 110 EPA-TO-15 ND A01 1 Ethylbenzene ND ug/m3 1400 100 EPA-TO-15 ND A01 1 1-Ethyl-4-methylbenzene ND ug/m3 1400 160 EPA-TO-15 ND A01 1 n-Heptane ND ug/m3 570 85 EPA-TO-15 ND A01 1 Hexachlorobutadiene ND ug/m3 2800 710 EPA-TO-15 ND A01 1 Hexane ND ug/m3 1400 57 EPA-TO-15 ND A01 1 2-Hexanone ND ug/m3 1400 97 EPA-TO-15 ND A01 1 Isopropyl alcohol ND ug/m3 570 130 EPA-TO-15 ND A01 1 Methylene chloride ND ug/m3 2800 68 EPA-TO-15 ND A01 1 Methyl ethyl ketone ND ug/m3 570 120 EPA-TO-15 ND A01 1 Methyl isobutyl ketone ND ug/m3 1400 200 EPA-TO-15 ND A01 1 Methyl t-butyl ether ND ug/m3 570 100 EPA-TO-15 ND A01 1 Propylene ND ug/m3 570 26 EPA-TO-15 ND A01 1 Styrene ND ug/m3 1400 110 EPA-TO-15 ND A01 1 1,1,2,2-Tetrachloroethane ND ug/m3 1400 310 EPA-TO-15 ND A01 1 Tetrachloroethene 93000 ug/m3 570 97 EPA-TO-15 ND A01 1 Tetrahydrofuran ND ug/m3 570 120 EPA-TO-15 ND A01 1 Toluene 2600 ug/m3 570 54 EPA-TO-15 ND A01 1 1,2,4-Trichlorobenzene ND ug/m3 2800 160 EPA-TO-15 ND A01 1 1,1,1-Trichloroethane ND ug/m3 1400 80 EPA-TO-15 ND A01 1 1,1,2-Trichloroethane 1500 ug/m3 1400 80 EPA-TO-15 ND A01 1 Trichloroethene 680 ug/m3 570 110 EPA-TO-15 ND A01 1 Trichlorofluoromethane ND ug/m3 1400 85 EPA-TO-15 ND A01 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND ug/m3 1400 110 EPA-TO-15 ND A01 1 1,2,4-Trimethylbenzene ND ug/m3 1400 180 EPA-TO-15 ND A01 1 1,3,5-Trimethylbenzene ND ug/m3 1400 430 EPA-TO-15 ND A01 1 Vinyl acetate ND ug/m3 570 88 EPA-TO-15 ND A01 1 Vinyl chloride ND ug/m3 570 82 EPA-TO-15 ND A01 1 p- & m-Xylenes ND ug/m3 1400 240 EPA-TO-15 ND A01 1 o-Xylene ND ug/m3 1400 150 EPA-TO-15 ND A01 1 Total Xylenes ND ug/m3 2800 400 EPA-TO-15 ND A01 1 4-Bromofluorobenzene (Surrogate) 90.9 % 70 - 130 (LCL - UCL) EPA-TO-15 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 31 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-08 Client Sample Name: Virginia Cleaners, SV-4-15, 11/1/2018 12:23:00PM, Stephen C. Run QC Run # Method Prep Date Date/Time Analyst Instrument Dilution Batch ID 1 EPA-TO-15 11/12/18 08:51 11/12/18 15:02 BEP MS-A1 284 B029798

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 32 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-09 Client Sample Name: Virginia Cleaners, SV-5-5, 11/1/2018 12:40:00PM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Acetone 8600 ug/m3 7800 600 EPA-TO-15 ND A01 1 Acrylonitrile ND ug/m3 3100 340 EPA-TO-15 ND A01 1 Allyl chloride ND ug/m3 3100 400 EPA-TO-15 ND A01 1 Benzene ND ug/m3 3100 250 EPA-TO-15 ND A01 1 Benzyl chloride ND ug/m3 16000 980 EPA-TO-15 ND A01 1 Bromodichloromethane ND ug/m3 7800 620 EPA-TO-15 ND A01 1 Bromoform ND ug/m3 16000 1100 EPA-TO-15 ND A01 1 Bromomethane ND ug/m3 3100 850 EPA-TO-15 ND A01 1 1,3-Butadiene ND ug/m3 3100 390 EPA-TO-15 ND A01 1 Carbon disulfide ND ug/m3 3100 250 EPA-TO-15 ND A01 1 Carbon tetrachloride ND ug/m3 7800 590 EPA-TO-15 ND A01 1 Chlorobenzene ND ug/m3 7800 510 EPA-TO-15 ND A01 1 Chloroethane ND ug/m3 3100 500 EPA-TO-15 ND A01 1 Chloroform ND ug/m3 7800 390 EPA-TO-15 ND A01 1 Chloromethane ND ug/m3 3100 450 EPA-TO-15 ND A01 1 Cyclohexane ND ug/m3 3100 280 EPA-TO-15 ND A01 1 Dibromochloromethane ND ug/m3 7800 670 EPA-TO-15 ND A01 1 1,2-Dibromoethane ND ug/m3 7800 640 EPA-TO-15 ND A01 1 1,2-Dichlorobenzene ND ug/m3 7800 600 EPA-TO-15 ND A01 1 1,3-Dichlorobenzene ND ug/m3 7800 950 EPA-TO-15 ND A01 1 1,4-Dichlorobenzene ND ug/m3 7800 850 EPA-TO-15 ND A01 1 Dichlorodifluoromethane ND ug/m3 7800 590 EPA-TO-15 ND A01 1 1,1-Dichloroethane ND ug/m3 7800 430 EPA-TO-15 ND A01 1 1,2-Dichloroethane ND ug/m3 7800 330 EPA-TO-15 ND A01 1 1,1-Dichloroethene ND ug/m3 7800 310 EPA-TO-15 ND A01 1 cis-1,2-Dichloroethene 2000 ug/m3 3100 360 EPA-TO-15 ND J,A01 1 trans-1,2-Dichloroethene ND ug/m3 3100 310 EPA-TO-15 ND A01 1 1,2-Dichloropropane ND ug/m3 7800 460 EPA-TO-15 ND A01 1 cis-1,3-Dichloropropene ND ug/m3 7800 360 EPA-TO-15 ND A01 1 trans-1,3-Dichloropropene ND ug/m3 7800 460 EPA-TO-15 ND A01 1 1,2-Dichloro-1,1,2,2-tetrafluoroethane ND ug/m3 7800 1200 EPA-TO-15 ND A01 1 1,1-Difluoroethane ND ug/m3 7800 3100 EPA-TO-15 ND A01 1 1,4-Dioxane ND ug/m3 3100 840 EPA-TO-15 ND A01 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 33 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-09 Client Sample Name: Virginia Cleaners, SV-5-5, 11/1/2018 12:40:00PM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Ethanol ND ug/m3 3100 1100 EPA-TO-15 ND A01 1 Ethyl acetate ND ug/m3 3100 620 EPA-TO-15 ND A01 1 Ethylbenzene ND ug/m3 7800 560 EPA-TO-15 ND A01 1 1-Ethyl-4-methylbenzene ND ug/m3 7800 850 EPA-TO-15 ND A01 1 n-Heptane ND ug/m3 3100 460 EPA-TO-15 ND A01 1 Hexachlorobutadiene ND ug/m3 16000 3900 EPA-TO-15 ND A01 1 Hexane ND ug/m3 7800 310 EPA-TO-15 ND A01 1 2-Hexanone ND ug/m3 7800 530 EPA-TO-15 ND A01 1 Isopropyl alcohol ND ug/m3 3100 730 EPA-TO-15 ND A01 1 Methylene chloride ND ug/m3 16000 370 EPA-TO-15 ND A01 1 Methyl ethyl ketone ND ug/m3 3100 650 EPA-TO-15 ND A01 1 Methyl isobutyl ketone ND ug/m3 7800 1100 EPA-TO-15 ND A01 1 Methyl t-butyl ether ND ug/m3 3100 560 EPA-TO-15 ND A01 1 Propylene ND ug/m3 3100 140 EPA-TO-15 ND A01 1 Styrene ND ug/m3 7800 590 EPA-TO-15 ND A01 1 1,1,2,2-Tetrachloroethane ND ug/m3 7800 1700 EPA-TO-15 ND A01 1 Tetrachloroethene 580000 ug/m3 31000 5300 EPA-TO-15 ND A01 2 Tetrahydrofuran ND ug/m3 3100 650 EPA-TO-15 ND A01 1 Toluene 1400 ug/m3 3100 290 EPA-TO-15 ND J,A01 1 1,2,4-Trichlorobenzene ND ug/m3 16000 900 EPA-TO-15 ND A01 1 1,1,1-Trichloroethane ND ug/m3 7800 430 EPA-TO-15 ND A01 1 1,1,2-Trichloroethane ND ug/m3 7800 430 EPA-TO-15 ND A01 1 Trichloroethene 51000 ug/m3 3100 590 EPA-TO-15 ND A01 1 Trichlorofluoromethane ND ug/m3 7800 460 EPA-TO-15 ND A01 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND ug/m3 7800 600 EPA-TO-15 ND A01 1 1,2,4-Trimethylbenzene ND ug/m3 7800 990 EPA-TO-15 ND A01 1 1,3,5-Trimethylbenzene ND ug/m3 7800 2300 EPA-TO-15 ND A01 1 Vinyl acetate ND ug/m3 3100 480 EPA-TO-15 ND A01 1 Vinyl chloride ND ug/m3 3100 450 EPA-TO-15 ND A01 1 p- & m-Xylenes ND ug/m3 7800 1300 EPA-TO-15 ND A01 1 o-Xylene ND ug/m3 7800 820 EPA-TO-15 ND A01 1 Total Xylenes ND ug/m3 16000 2200 EPA-TO-15 ND A01 1 4-Bromofluorobenzene (Surrogate) 77.7 % 70 - 130 (LCL - UCL) EPA-TO-15 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 34 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-09 Client Sample Name: Virginia Cleaners, SV-5-5, 11/1/2018 12:40:00PM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # 4-Bromofluorobenzene (Surrogate) 79.9 % 70 - 130 (LCL - UCL) EPA-TO-15 2

Run QC Run # Method Prep Date Date/Time Analyst Instrument Dilution Batch ID 1 EPA-TO-15 11/12/18 08:51 11/12/18 13:20 BEP MS-A1 1550 B029798

2 EPA-TO-15 11/12/18 08:51 11/12/18 15:38 BEP MS-A1 15500 B029798

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 35 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-10 Client Sample Name: Virginia Cleaners, SV-5-10, 11/1/2018 12:41:00PM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Acetone 7700 ug/m3 8900 690 EPA-TO-15 ND J,A01 1 Acrylonitrile ND ug/m3 3600 390 EPA-TO-15 ND A01 1 Allyl chloride ND ug/m3 3600 460 EPA-TO-15 ND A01 1 Benzene ND ug/m3 3600 280 EPA-TO-15 ND A01 1 Benzyl chloride ND ug/m3 18000 1100 EPA-TO-15 ND A01 1 Bromodichloromethane ND ug/m3 8900 710 EPA-TO-15 ND A01 1 Bromoform ND ug/m3 18000 1300 EPA-TO-15 ND A01 1 Bromomethane ND ug/m3 3600 980 EPA-TO-15 ND A01 1 1,3-Butadiene ND ug/m3 3600 440 EPA-TO-15 ND A01 1 Carbon disulfide ND ug/m3 3600 280 EPA-TO-15 ND A01 1 Carbon tetrachloride ND ug/m3 8900 680 EPA-TO-15 ND A01 1 Chlorobenzene ND ug/m3 8900 590 EPA-TO-15 ND A01 1 Chloroethane ND ug/m3 3600 570 EPA-TO-15 ND A01 1 Chloroform ND ug/m3 8900 440 EPA-TO-15 ND A01 1 Chloromethane ND ug/m3 3600 520 EPA-TO-15 ND A01 1 Cyclohexane ND ug/m3 3600 320 EPA-TO-15 ND A01 1 Dibromochloromethane ND ug/m3 8900 770 EPA-TO-15 ND A01 1 1,2-Dibromoethane ND ug/m3 8900 730 EPA-TO-15 ND A01 1 1,2-Dichlorobenzene ND ug/m3 8900 690 EPA-TO-15 ND A01 1 1,3-Dichlorobenzene ND ug/m3 8900 1100 EPA-TO-15 ND A01 1 1,4-Dichlorobenzene ND ug/m3 8900 980 EPA-TO-15 ND A01 1 Dichlorodifluoromethane ND ug/m3 8900 680 EPA-TO-15 ND A01 1 1,1-Dichloroethane ND ug/m3 8900 500 EPA-TO-15 ND A01 1 1,2-Dichloroethane ND ug/m3 8900 370 EPA-TO-15 ND A01 1 1,1-Dichloroethene ND ug/m3 8900 360 EPA-TO-15 ND A01 1 cis-1,2-Dichloroethene 14000 ug/m3 3600 410 EPA-TO-15 ND A01 1 trans-1,2-Dichloroethene 3100 ug/m3 3600 360 EPA-TO-15 ND J,A01 1 1,2-Dichloropropane ND ug/m3 8900 530 EPA-TO-15 ND A01 1 cis-1,3-Dichloropropene ND ug/m3 8900 410 EPA-TO-15 ND A01 1 trans-1,3-Dichloropropene ND ug/m3 8900 530 EPA-TO-15 ND A01 1 1,2-Dichloro-1,1,2,2-tetrafluoroethane ND ug/m3 8900 1400 EPA-TO-15 ND A01 1 1,1-Difluoroethane ND ug/m3 8900 3600 EPA-TO-15 ND A01 1 1,4-Dioxane ND ug/m3 3600 960 EPA-TO-15 ND A01 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 36 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-10 Client Sample Name: Virginia Cleaners, SV-5-10, 11/1/2018 12:41:00PM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Ethanol ND ug/m3 3600 1300 EPA-TO-15 ND A01 1 Ethyl acetate ND ug/m3 3600 710 EPA-TO-15 ND A01 1 Ethylbenzene ND ug/m3 8900 640 EPA-TO-15 ND A01 1 1-Ethyl-4-methylbenzene ND ug/m3 8900 980 EPA-TO-15 ND A01 1 n-Heptane ND ug/m3 3600 530 EPA-TO-15 ND A01 1 Hexachlorobutadiene ND ug/m3 18000 4400 EPA-TO-15 ND A01 1 Hexane ND ug/m3 8900 360 EPA-TO-15 ND A01 1 2-Hexanone ND ug/m3 8900 610 EPA-TO-15 ND A01 1 Isopropyl alcohol ND ug/m3 3600 840 EPA-TO-15 ND A01 1 Methylene chloride ND ug/m3 18000 430 EPA-TO-15 ND A01 1 Methyl ethyl ketone ND ug/m3 3600 750 EPA-TO-15 ND A01 1 Methyl isobutyl ketone ND ug/m3 8900 1200 EPA-TO-15 ND A01 1 Methyl t-butyl ether ND ug/m3 3600 640 EPA-TO-15 ND A01 1 Propylene ND ug/m3 3600 160 EPA-TO-15 ND A01 1 Styrene ND ug/m3 8900 680 EPA-TO-15 ND A01 1 1,1,2,2-Tetrachloroethane ND ug/m3 8900 2000 EPA-TO-15 ND A01 1 Tetrachloroethene 14000000 ug/m3 360000 61000 EPA-TO-15 ND A01 2 Tetrahydrofuran ND ug/m3 3600 750 EPA-TO-15 ND A01 1 Toluene 2200 ug/m3 3600 340 EPA-TO-15 ND J,A01 1 1,2,4-Trichlorobenzene ND ug/m3 18000 1000 EPA-TO-15 ND A01 1 1,1,1-Trichloroethane ND ug/m3 8900 500 EPA-TO-15 ND A01 1 1,1,2-Trichloroethane ND ug/m3 8900 500 EPA-TO-15 ND A01 1 Trichloroethene 100000 ug/m3 3600 680 EPA-TO-15 ND A01 1 Trichlorofluoromethane ND ug/m3 8900 530 EPA-TO-15 ND A01 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND ug/m3 8900 690 EPA-TO-15 ND A01 1 1,2,4-Trimethylbenzene ND ug/m3 8900 1100 EPA-TO-15 ND A01 1 1,3,5-Trimethylbenzene ND ug/m3 8900 2700 EPA-TO-15 ND A01 1 Vinyl acetate ND ug/m3 3600 550 EPA-TO-15 ND A01 1 Vinyl chloride ND ug/m3 3600 520 EPA-TO-15 ND A01 1 p- & m-Xylenes ND ug/m3 8900 1500 EPA-TO-15 ND A01 1 o-Xylene ND ug/m3 8900 940 EPA-TO-15 ND A01 1 Total Xylenes ND ug/m3 18000 2500 EPA-TO-15 ND A01 1 4-Bromofluorobenzene (Surrogate) 80.3 % 70 - 130 (LCL - UCL) EPA-TO-15 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 37 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-10 Client Sample Name: Virginia Cleaners, SV-5-10, 11/1/2018 12:41:00PM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # 4-Bromofluorobenzene (Surrogate) 67.0 % 70 - 130 (LCL - UCL) EPA-TO-15 S09 2

Run QC Run # Method Prep Date Date/Time Analyst Instrument Dilution Batch ID 1 EPA-TO-15 11/12/18 08:51 11/12/18 13:51 BEP MS-A1 1780 B029798

2 EPA-TO-15 11/12/18 08:51 11/12/18 17:52 BEP MS-A1 178000 B029798

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 38 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-11 Client Sample Name: Virginia Cleaners, SV-6-5, 11/1/2018 12:55:00PM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Acetone 2700 ug/m3 500 39 EPA-TO-15 ND A01 1 Acrylonitrile ND ug/m3 200 22 EPA-TO-15 ND A01 1 Allyl chloride ND ug/m3 200 26 EPA-TO-15 ND A01 1 Benzene ND ug/m3 200 16 EPA-TO-15 ND A01 1 Benzyl chloride ND ug/m3 1000 63 EPA-TO-15 ND A01 1 Bromodichloromethane ND ug/m3 500 40 EPA-TO-15 ND A01 1 Bromoform ND ug/m3 1000 71 EPA-TO-15 ND A01 1 Bromomethane ND ug/m3 200 55 EPA-TO-15 ND A01 1 1,3-Butadiene ND ug/m3 200 25 EPA-TO-15 ND A01 1 Carbon disulfide ND ug/m3 200 16 EPA-TO-15 ND A01 1 Carbon tetrachloride ND ug/m3 500 38 EPA-TO-15 ND A01 1 Chlorobenzene ND ug/m3 500 33 EPA-TO-15 ND A01 1 Chloroethane ND ug/m3 200 32 EPA-TO-15 ND A01 1 Chloroform ND ug/m3 500 25 EPA-TO-15 ND A01 1 Chloromethane ND ug/m3 200 29 EPA-TO-15 ND A01 1 Cyclohexane ND ug/m3 200 18 EPA-TO-15 ND A01 1 Dibromochloromethane ND ug/m3 500 43 EPA-TO-15 ND A01 1 1,2-Dibromoethane ND ug/m3 500 41 EPA-TO-15 ND A01 1 1,2-Dichlorobenzene ND ug/m3 500 39 EPA-TO-15 ND A01 1 1,3-Dichlorobenzene ND ug/m3 500 61 EPA-TO-15 ND A01 1 1,4-Dichlorobenzene ND ug/m3 500 55 EPA-TO-15 ND A01 1 Dichlorodifluoromethane ND ug/m3 500 38 EPA-TO-15 ND A01 1 1,1-Dichloroethane ND ug/m3 500 28 EPA-TO-15 ND A01 1 1,2-Dichloroethane ND ug/m3 500 21 EPA-TO-15 ND A01 1 1,1-Dichloroethene ND ug/m3 500 20 EPA-TO-15 ND A01 1 cis-1,2-Dichloroethene 310 ug/m3 200 23 EPA-TO-15 ND A01 1 trans-1,2-Dichloroethene ND ug/m3 200 20 EPA-TO-15 ND A01 1 1,2-Dichloropropane ND ug/m3 500 30 EPA-TO-15 ND A01 1 cis-1,3-Dichloropropene ND ug/m3 500 23 EPA-TO-15 ND A01 1 trans-1,3-Dichloropropene ND ug/m3 500 30 EPA-TO-15 ND A01 1 1,2-Dichloro-1,1,2,2-tetrafluoroethane ND ug/m3 500 77 EPA-TO-15 ND A01 1 1,1-Difluoroethane ND ug/m3 500 200 EPA-TO-15 ND A01 1 1,4-Dioxane ND ug/m3 200 54 EPA-TO-15 ND A01 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 39 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-11 Client Sample Name: Virginia Cleaners, SV-6-5, 11/1/2018 12:55:00PM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Ethanol ND ug/m3 200 74 EPA-TO-15 ND A01 1 Ethyl acetate ND ug/m3 200 40 EPA-TO-15 ND A01 1 Ethylbenzene ND ug/m3 500 36 EPA-TO-15 ND A01 1 1-Ethyl-4-methylbenzene ND ug/m3 500 55 EPA-TO-15 ND A01 1 n-Heptane ND ug/m3 200 30 EPA-TO-15 ND A01 1 Hexachlorobutadiene ND ug/m3 1000 250 EPA-TO-15 ND A01 1 Hexane ND ug/m3 500 20 EPA-TO-15 ND A01 1 2-Hexanone ND ug/m3 500 34 EPA-TO-15 ND A01 1 Isopropyl alcohol ND ug/m3 200 47 EPA-TO-15 ND A01 1 Methylene chloride ND ug/m3 1000 24 EPA-TO-15 ND A01 1 Methyl ethyl ketone ND ug/m3 200 42 EPA-TO-15 ND A01 1 Methyl isobutyl ketone ND ug/m3 500 70 EPA-TO-15 ND A01 1 Methyl t-butyl ether ND ug/m3 200 36 EPA-TO-15 ND A01 1 Propylene ND ug/m3 200 9.0 EPA-TO-15 ND A01 1 Styrene ND ug/m3 500 38 EPA-TO-15 ND A01 1 1,1,2,2-Tetrachloroethane ND ug/m3 500 110 EPA-TO-15 ND A01 1 Tetrachloroethene 280000 ug/m3 4000 680 EPA-TO-15 ND A01 2 Tetrahydrofuran ND ug/m3 200 42 EPA-TO-15 ND A01 1 Toluene ND ug/m3 200 19 EPA-TO-15 ND A01 1 1,2,4-Trichlorobenzene ND ug/m3 1000 58 EPA-TO-15 ND A01 1 1,1,1-Trichloroethane ND ug/m3 500 28 EPA-TO-15 ND A01 1 1,1,2-Trichloroethane ND ug/m3 500 28 EPA-TO-15 ND A01 1 Trichloroethene 2800 ug/m3 200 38 EPA-TO-15 ND A01 1 Trichlorofluoromethane ND ug/m3 500 30 EPA-TO-15 ND A01 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND ug/m3 500 39 EPA-TO-15 ND A01 1 1,2,4-Trimethylbenzene ND ug/m3 500 64 EPA-TO-15 ND A01 1 1,3,5-Trimethylbenzene ND ug/m3 500 150 EPA-TO-15 ND A01 1 Vinyl acetate ND ug/m3 200 31 EPA-TO-15 ND A01 1 Vinyl chloride ND ug/m3 200 29 EPA-TO-15 ND A01 1 p- & m-Xylenes ND ug/m3 500 83 EPA-TO-15 ND A01 1 o-Xylene ND ug/m3 500 53 EPA-TO-15 ND A01 1 Total Xylenes ND ug/m3 1000 140 EPA-TO-15 ND A01 1 4-Bromofluorobenzene (Surrogate) 84.6 % 70 - 130 (LCL - UCL) EPA-TO-15 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 40 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-11 Client Sample Name: Virginia Cleaners, SV-6-5, 11/1/2018 12:55:00PM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # 4-Bromofluorobenzene (Surrogate) 66.5 % 70 - 130 (LCL - UCL) EPA-TO-15 S09 2

Run QC Run # Method Prep Date Date/Time Analyst Instrument Dilution Batch ID 1 EPA-TO-15 11/07/18 12:31 11/08/18 13:42 BEP MS-A1 100 B029451

2 EPA-TO-15 11/07/18 12:31 11/08/18 15:27 BEP MS-A1 2000 B029451

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 41 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-12 Client Sample Name: Virginia Cleaners, SV-6-10, 11/1/2018 12:57:00PM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Acetone 1500 ug/m3 500 39 EPA-TO-15 ND A01 1 Acrylonitrile ND ug/m3 200 22 EPA-TO-15 ND A01 1 Allyl chloride ND ug/m3 200 26 EPA-TO-15 ND A01 1 Benzene ND ug/m3 200 16 EPA-TO-15 ND A01 1 Benzyl chloride ND ug/m3 1000 63 EPA-TO-15 ND A01 1 Bromodichloromethane ND ug/m3 500 40 EPA-TO-15 ND A01 1 Bromoform ND ug/m3 1000 71 EPA-TO-15 ND A01 1 Bromomethane ND ug/m3 200 55 EPA-TO-15 ND A01 1 1,3-Butadiene ND ug/m3 200 25 EPA-TO-15 ND A01 1 Carbon disulfide ND ug/m3 200 16 EPA-TO-15 ND A01 1 Carbon tetrachloride ND ug/m3 500 38 EPA-TO-15 ND A01 1 Chlorobenzene ND ug/m3 500 33 EPA-TO-15 ND A01 1 Chloroethane ND ug/m3 200 32 EPA-TO-15 ND A01 1 Chloroform ND ug/m3 500 25 EPA-TO-15 ND A01 1 Chloromethane ND ug/m3 200 29 EPA-TO-15 ND A01 1 Cyclohexane ND ug/m3 200 18 EPA-TO-15 ND A01 1 Dibromochloromethane ND ug/m3 500 43 EPA-TO-15 ND A01 1 1,2-Dibromoethane ND ug/m3 500 41 EPA-TO-15 ND A01 1 1,2-Dichlorobenzene ND ug/m3 500 39 EPA-TO-15 ND A01 1 1,3-Dichlorobenzene ND ug/m3 500 61 EPA-TO-15 ND A01 1 1,4-Dichlorobenzene ND ug/m3 500 55 EPA-TO-15 ND A01 1 Dichlorodifluoromethane ND ug/m3 500 38 EPA-TO-15 ND A01 1 1,1-Dichloroethane ND ug/m3 500 28 EPA-TO-15 ND A01 1 1,2-Dichloroethane ND ug/m3 500 21 EPA-TO-15 ND A01 1 1,1-Dichloroethene ND ug/m3 500 20 EPA-TO-15 ND A01 1 cis-1,2-Dichloroethene ND ug/m3 200 23 EPA-TO-15 ND A01 1 trans-1,2-Dichloroethene ND ug/m3 200 20 EPA-TO-15 ND A01 1 1,2-Dichloropropane ND ug/m3 500 30 EPA-TO-15 ND A01 1 cis-1,3-Dichloropropene ND ug/m3 500 23 EPA-TO-15 ND A01 1 trans-1,3-Dichloropropene ND ug/m3 500 30 EPA-TO-15 ND A01 1 1,2-Dichloro-1,1,2,2-tetrafluoroethane ND ug/m3 500 77 EPA-TO-15 ND A01 1 1,1-Difluoroethane ND ug/m3 500 200 EPA-TO-15 ND A01 1 1,4-Dioxane ND ug/m3 200 54 EPA-TO-15 ND A01 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 42 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-12 Client Sample Name: Virginia Cleaners, SV-6-10, 11/1/2018 12:57:00PM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Ethanol ND ug/m3 200 74 EPA-TO-15 ND A01 1 Ethyl acetate ND ug/m3 200 40 EPA-TO-15 ND A01 1 Ethylbenzene ND ug/m3 500 36 EPA-TO-15 ND A01 1 1-Ethyl-4-methylbenzene ND ug/m3 500 55 EPA-TO-15 ND A01 1 n-Heptane ND ug/m3 200 30 EPA-TO-15 ND A01 1 Hexachlorobutadiene ND ug/m3 1000 250 EPA-TO-15 ND A01 1 Hexane ND ug/m3 500 20 EPA-TO-15 ND A01 1 2-Hexanone ND ug/m3 500 34 EPA-TO-15 ND A01 1 Isopropyl alcohol ND ug/m3 200 47 EPA-TO-15 ND A01 1 Methylene chloride ND ug/m3 1000 24 EPA-TO-15 ND A01 1 Methyl ethyl ketone ND ug/m3 200 42 EPA-TO-15 ND A01 1 Methyl isobutyl ketone ND ug/m3 500 70 EPA-TO-15 ND A01 1 Methyl t-butyl ether ND ug/m3 200 36 EPA-TO-15 ND A01 1 Propylene ND ug/m3 200 9.0 EPA-TO-15 ND A01 1 Styrene ND ug/m3 500 38 EPA-TO-15 ND A01 1 1,1,2,2-Tetrachloroethane ND ug/m3 500 110 EPA-TO-15 ND A01 1 Tetrachloroethene 160000 ug/m3 4000 680 EPA-TO-15 ND A01 2 Tetrahydrofuran ND ug/m3 200 42 EPA-TO-15 ND A01 1 Toluene ND ug/m3 200 19 EPA-TO-15 ND A01 1 1,2,4-Trichlorobenzene ND ug/m3 1000 58 EPA-TO-15 ND A01 1 1,1,1-Trichloroethane ND ug/m3 500 28 EPA-TO-15 ND A01 1 1,1,2-Trichloroethane ND ug/m3 500 28 EPA-TO-15 ND A01 1 Trichloroethene 1200 ug/m3 200 38 EPA-TO-15 ND A01 1 Trichlorofluoromethane ND ug/m3 500 30 EPA-TO-15 ND A01 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND ug/m3 500 39 EPA-TO-15 ND A01 1 1,2,4-Trimethylbenzene ND ug/m3 500 64 EPA-TO-15 ND A01 1 1,3,5-Trimethylbenzene ND ug/m3 500 150 EPA-TO-15 ND A01 1 Vinyl acetate ND ug/m3 200 31 EPA-TO-15 ND A01 1 Vinyl chloride ND ug/m3 200 29 EPA-TO-15 ND A01 1 p- & m-Xylenes ND ug/m3 500 83 EPA-TO-15 ND A01 1 o-Xylene ND ug/m3 500 53 EPA-TO-15 ND A01 1 Total Xylenes ND ug/m3 1000 140 EPA-TO-15 ND A01 1 4-Bromofluorobenzene (Surrogate) 73.5 % 70 - 130 (LCL - UCL) EPA-TO-15 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 43 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-12 Client Sample Name: Virginia Cleaners, SV-6-10, 11/1/2018 12:57:00PM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # 4-Bromofluorobenzene (Surrogate) 64.0 % 70 - 130 (LCL - UCL) EPA-TO-15 S09 2

Run QC Run # Method Prep Date Date/Time Analyst Instrument Dilution Batch ID 1 EPA-TO-15 11/07/18 12:31 11/08/18 14:19 BEP MS-A1 100 B029451

2 EPA-TO-15 11/07/18 12:31 11/08/18 15:59 BEP MS-A1 2000 B029451

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 44 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-13 Client Sample Name: Virginia Cleaners, Dup-1, 11/1/2018 12:25:00PM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Acetone 2500 ug/m3 500 39 EPA-TO-15 ND A01 1 Acrylonitrile ND ug/m3 200 22 EPA-TO-15 ND A01 1 Allyl chloride ND ug/m3 200 26 EPA-TO-15 ND A01 1 Benzene ND ug/m3 200 16 EPA-TO-15 ND A01 1 Benzyl chloride ND ug/m3 1000 63 EPA-TO-15 ND A01 1 Bromodichloromethane ND ug/m3 500 40 EPA-TO-15 ND A01 1 Bromoform ND ug/m3 1000 71 EPA-TO-15 ND A01 1 Bromomethane ND ug/m3 200 55 EPA-TO-15 ND A01 1 1,3-Butadiene ND ug/m3 200 25 EPA-TO-15 ND A01 1 Carbon disulfide ND ug/m3 200 16 EPA-TO-15 ND A01 1 Carbon tetrachloride ND ug/m3 500 38 EPA-TO-15 ND A01 1 Chlorobenzene ND ug/m3 500 33 EPA-TO-15 ND A01 1 Chloroethane ND ug/m3 200 32 EPA-TO-15 ND A01 1 Chloroform ND ug/m3 500 25 EPA-TO-15 ND A01 1 Chloromethane ND ug/m3 200 29 EPA-TO-15 ND A01 1 Cyclohexane ND ug/m3 200 18 EPA-TO-15 ND A01 1 Dibromochloromethane ND ug/m3 500 43 EPA-TO-15 ND A01 1 1,2-Dibromoethane ND ug/m3 500 41 EPA-TO-15 ND A01 1 1,2-Dichlorobenzene ND ug/m3 500 39 EPA-TO-15 ND A01 1 1,3-Dichlorobenzene ND ug/m3 500 61 EPA-TO-15 ND A01 1 1,4-Dichlorobenzene ND ug/m3 500 55 EPA-TO-15 ND A01 1 Dichlorodifluoromethane ND ug/m3 500 38 EPA-TO-15 ND A01 1 1,1-Dichloroethane ND ug/m3 500 28 EPA-TO-15 ND A01 1 1,2-Dichloroethane ND ug/m3 500 21 EPA-TO-15 ND A01 1 1,1-Dichloroethene ND ug/m3 500 20 EPA-TO-15 ND A01 1 cis-1,2-Dichloroethene ND ug/m3 200 23 EPA-TO-15 ND A01 1 trans-1,2-Dichloroethene ND ug/m3 200 20 EPA-TO-15 ND A01 1 1,2-Dichloropropane ND ug/m3 500 30 EPA-TO-15 ND A01 1 cis-1,3-Dichloropropene ND ug/m3 500 23 EPA-TO-15 ND A01 1 trans-1,3-Dichloropropene ND ug/m3 500 30 EPA-TO-15 ND A01 1 1,2-Dichloro-1,1,2,2-tetrafluoroethane ND ug/m3 500 77 EPA-TO-15 ND A01 1 1,1-Difluoroethane ND ug/m3 500 200 EPA-TO-15 ND A01 1 1,4-Dioxane ND ug/m3 200 54 EPA-TO-15 ND A01 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 45 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-13 Client Sample Name: Virginia Cleaners, Dup-1, 11/1/2018 12:25:00PM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # Ethanol ND ug/m3 200 74 EPA-TO-15 ND A01 1 Ethyl acetate ND ug/m3 200 40 EPA-TO-15 ND A01 1 Ethylbenzene ND ug/m3 500 36 EPA-TO-15 ND A01 1 1-Ethyl-4-methylbenzene ND ug/m3 500 55 EPA-TO-15 ND A01 1 n-Heptane ND ug/m3 200 30 EPA-TO-15 ND A01 1 Hexachlorobutadiene ND ug/m3 1000 250 EPA-TO-15 ND A01 1 Hexane ND ug/m3 500 20 EPA-TO-15 ND A01 1 2-Hexanone ND ug/m3 500 34 EPA-TO-15 ND A01 1 Isopropyl alcohol ND ug/m3 200 47 EPA-TO-15 ND A01 1 Methylene chloride ND ug/m3 1000 24 EPA-TO-15 ND A01 1 Methyl ethyl ketone ND ug/m3 200 42 EPA-TO-15 ND A01 1 Methyl isobutyl ketone ND ug/m3 500 70 EPA-TO-15 ND A01 1 Methyl t-butyl ether ND ug/m3 200 36 EPA-TO-15 ND A01 1 Propylene ND ug/m3 200 9.0 EPA-TO-15 ND A01 1 Styrene ND ug/m3 500 38 EPA-TO-15 ND A01 1 1,1,2,2-Tetrachloroethane ND ug/m3 500 110 EPA-TO-15 ND A01 1 Tetrachloroethene 26000 ug/m3 4000 680 EPA-TO-15 ND A01 2 Tetrahydrofuran ND ug/m3 200 42 EPA-TO-15 ND A01 1 Toluene ND ug/m3 200 19 EPA-TO-15 ND A01 1 1,2,4-Trichlorobenzene ND ug/m3 1000 58 EPA-TO-15 ND A01 1 1,1,1-Trichloroethane ND ug/m3 500 28 EPA-TO-15 ND A01 1 1,1,2-Trichloroethane ND ug/m3 500 28 EPA-TO-15 ND A01 1 Trichloroethene ND ug/m3 200 38 EPA-TO-15 ND A01 1 Trichlorofluoromethane ND ug/m3 500 30 EPA-TO-15 ND A01 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND ug/m3 500 39 EPA-TO-15 ND A01 1 1,2,4-Trimethylbenzene ND ug/m3 500 64 EPA-TO-15 ND A01 1 1,3,5-Trimethylbenzene ND ug/m3 500 150 EPA-TO-15 ND A01 1 Vinyl acetate ND ug/m3 200 31 EPA-TO-15 ND A01 1 Vinyl chloride ND ug/m3 200 29 EPA-TO-15 ND A01 1 p- & m-Xylenes ND ug/m3 500 83 EPA-TO-15 ND A01 1 o-Xylene ND ug/m3 500 53 EPA-TO-15 ND A01 1 Total Xylenes ND ug/m3 1000 140 EPA-TO-15 ND A01 1 4-Bromofluorobenzene (Surrogate) 86.7 % 70 - 130 (LCL - UCL) EPA-TO-15 1

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 46 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

BCL Sample ID: 1834638-13 Client Sample Name: Virginia Cleaners, Dup-1, 11/1/2018 12:25:00PM, Stephen C. MB Lab Constituent Result Units PQL MDL Method Bias Quals Run # 4-Bromofluorobenzene (Surrogate) 61.7 % 70 - 130 (LCL - UCL) EPA-TO-15 S09 2

Run QC Run # Method Prep Date Date/Time Analyst Instrument Dilution Batch ID 1 EPA-TO-15 11/07/18 12:31 11/08/18 14:56 BEP MS-A1 100 B029451

2 EPA-TO-15 11/07/18 12:31 11/08/18 16:30 BEP MS-A1 2000 B029451

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 47 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

Quality Control Report - Method Blank Analysis

Constituent QC Sample ID MB Result Units PQL MDL Lab Quals

QC Batch ID: B029418 Acetone B029418-BLK1 ND ug/m3 5.0 0.39

Acrylonitrile B029418-BLK1 ND ug/m3 2.0 0.22

Allyl chloride B029418-BLK1 ND ug/m3 2.0 0.26

Benzene B029418-BLK1 ND ug/m3 2.0 0.16

Benzyl chloride B029418-BLK1 ND ug/m3 10 0.63

Bromodichloromethane B029418-BLK1 ND ug/m3 5.0 0.40

Bromoform B029418-BLK1 ND ug/m3 10 0.71

Bromomethane B029418-BLK1 ND ug/m3 2.0 0.55

1,3-Butadiene B029418-BLK1 ND ug/m3 2.0 0.25

Carbon disulfide B029418-BLK1 ND ug/m3 2.0 0.16

Carbon tetrachloride B029418-BLK1 ND ug/m3 5.0 0.38

Chlorobenzene B029418-BLK1 ND ug/m3 5.0 0.33

Chloroethane B029418-BLK1 ND ug/m3 2.0 0.32

Chloroform B029418-BLK1 ND ug/m3 5.0 0.25

Chloromethane B029418-BLK1 ND ug/m3 2.0 0.29

Cyclohexane B029418-BLK1 ND ug/m3 2.0 0.18

Dibromochloromethane B029418-BLK1 ND ug/m3 5.0 0.43

1,2-Dibromoethane B029418-BLK1 ND ug/m3 5.0 0.41

1,2-Dichlorobenzene B029418-BLK1 ND ug/m3 5.0 0.39

1,3-Dichlorobenzene B029418-BLK1 ND ug/m3 5.0 0.61

1,4-Dichlorobenzene B029418-BLK1 ND ug/m3 5.0 0.55

Dichlorodifluoromethane B029418-BLK1 ND ug/m3 5.0 0.38

1,1-Dichloroethane B029418-BLK1 ND ug/m3 5.0 0.28

1,2-Dichloroethane B029418-BLK1 ND ug/m3 5.0 0.21

1,1-Dichloroethene B029418-BLK1 ND ug/m3 5.0 0.20

cis-1,2-Dichloroethene B029418-BLK1 ND ug/m3 2.0 0.23

trans-1,2-Dichloroethene B029418-BLK1 ND ug/m3 2.0 0.20

1,2-Dichloropropane B029418-BLK1 ND ug/m3 5.0 0.30

cis-1,3-Dichloropropene B029418-BLK1 ND ug/m3 5.0 0.23

trans-1,3-Dichloropropene B029418-BLK1 ND ug/m3 5.0 0.30

1,2-Dichloro-1,1,2,2-tetrafluoroethane B029418-BLK1 ND ug/m3 5.0 0.77

1,1-Difluoroethane B029418-BLK1 ND ug/m3 5.0 2.0

1,4-Dioxane B029418-BLK1 ND ug/m3 2.0 0.54

Ethanol B029418-BLK1 ND ug/m3 2.0 0.74

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 48 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

Quality Control Report - Method Blank Analysis

Constituent QC Sample ID MB Result Units PQL MDL Lab Quals

QC Batch ID: B029418 Ethyl acetate B029418-BLK1 ND ug/m3 2.0 0.40

Ethylbenzene B029418-BLK1 ND ug/m3 5.0 0.36

1-Ethyl-4-methylbenzene B029418-BLK1 ND ug/m3 5.0 0.55

n-Heptane B029418-BLK1 ND ug/m3 2.0 0.30

Hexachlorobutadiene B029418-BLK1 ND ug/m3 10 2.5

Hexane B029418-BLK1 ND ug/m3 5.0 0.20

2-Hexanone B029418-BLK1 ND ug/m3 5.0 0.34

Isopropyl alcohol B029418-BLK1 ND ug/m3 2.0 0.47

Methylene chloride B029418-BLK1 ND ug/m3 10 0.24

Methyl ethyl ketone B029418-BLK1 ND ug/m3 2.0 0.42

Methyl isobutyl ketone B029418-BLK1 ND ug/m3 5.0 0.70

Methyl t-butyl ether B029418-BLK1 ND ug/m3 2.0 0.36

Propylene B029418-BLK1 ND ug/m3 2.0 0.090

Styrene B029418-BLK1 ND ug/m3 5.0 0.38

1,1,2,2-Tetrachloroethane B029418-BLK1 ND ug/m3 5.0 1.1

Tetrachloroethene B029418-BLK1 ND ug/m3 2.0 0.34

Tetrahydrofuran B029418-BLK1 ND ug/m3 2.0 0.42

Toluene B029418-BLK1 ND ug/m3 2.0 0.19

1,2,4-Trichlorobenzene B029418-BLK1 ND ug/m3 10 0.58

1,1,1-Trichloroethane B029418-BLK1 ND ug/m3 5.0 0.28

1,1,2-Trichloroethane B029418-BLK1 ND ug/m3 5.0 0.28

Trichloroethene B029418-BLK1 ND ug/m3 2.0 0.38

Trichlorofluoromethane B029418-BLK1 ND ug/m3 5.0 0.30

1,1,2-Trichloro-1,2,2-trifluoroethane B029418-BLK1 ND ug/m3 5.0 0.39

1,2,4-Trimethylbenzene B029418-BLK1 ND ug/m3 5.0 0.64

1,3,5-Trimethylbenzene B029418-BLK1 ND ug/m3 5.0 1.5

Vinyl acetate B029418-BLK1 ND ug/m3 2.0 0.31

Vinyl chloride B029418-BLK1 ND ug/m3 2.0 0.29

p- & m-Xylenes B029418-BLK1 ND ug/m3 5.0 0.83

o-Xylene B029418-BLK1 ND ug/m3 5.0 0.53

Total Xylenes B029418-BLK1 ND ug/m3 10 1.4

4-Bromofluorobenzene (Surrogate) B029418-BLK1 88.3 % 70 - 130 (LCL - UCL)

QC Batch ID: B029451

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 49 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

Quality Control Report - Method Blank Analysis

Constituent QC Sample ID MB Result Units PQL MDL Lab Quals

QC Batch ID: B029451 Acetone B029451-BLK1 ND ug/m3 5.0 0.39

Acrylonitrile B029451-BLK1 ND ug/m3 2.0 0.22

Allyl chloride B029451-BLK1 ND ug/m3 2.0 0.26

Benzene B029451-BLK1 ND ug/m3 2.0 0.16

Benzyl chloride B029451-BLK1 ND ug/m3 10 0.63

Bromodichloromethane B029451-BLK1 ND ug/m3 5.0 0.40

Bromoform B029451-BLK1 ND ug/m3 10 0.71

Bromomethane B029451-BLK1 ND ug/m3 2.0 0.55

1,3-Butadiene B029451-BLK1 ND ug/m3 2.0 0.25

Carbon disulfide B029451-BLK1 ND ug/m3 2.0 0.16

Carbon tetrachloride B029451-BLK1 ND ug/m3 5.0 0.38

Chlorobenzene B029451-BLK1 ND ug/m3 5.0 0.33

Chloroethane B029451-BLK1 ND ug/m3 2.0 0.32

Chloroform B029451-BLK1 ND ug/m3 5.0 0.25

Chloromethane B029451-BLK1 ND ug/m3 2.0 0.29

Cyclohexane B029451-BLK1 ND ug/m3 2.0 0.18

Dibromochloromethane B029451-BLK1 ND ug/m3 5.0 0.43

1,2-Dibromoethane B029451-BLK1 ND ug/m3 5.0 0.41

1,2-Dichlorobenzene B029451-BLK1 ND ug/m3 5.0 0.39

1,3-Dichlorobenzene B029451-BLK1 ND ug/m3 5.0 0.61

1,4-Dichlorobenzene B029451-BLK1 ND ug/m3 5.0 0.55

Dichlorodifluoromethane B029451-BLK1 ND ug/m3 5.0 0.38

1,1-Dichloroethane B029451-BLK1 ND ug/m3 5.0 0.28

1,2-Dichloroethane B029451-BLK1 ND ug/m3 5.0 0.21

1,1-Dichloroethene B029451-BLK1 ND ug/m3 5.0 0.20

cis-1,2-Dichloroethene B029451-BLK1 ND ug/m3 2.0 0.23

trans-1,2-Dichloroethene B029451-BLK1 ND ug/m3 2.0 0.20

1,2-Dichloropropane B029451-BLK1 ND ug/m3 5.0 0.30

cis-1,3-Dichloropropene B029451-BLK1 ND ug/m3 5.0 0.23

trans-1,3-Dichloropropene B029451-BLK1 ND ug/m3 5.0 0.30

1,2-Dichloro-1,1,2,2-tetrafluoroethane B029451-BLK1 ND ug/m3 5.0 0.77

1,1-Difluoroethane B029451-BLK1 ND ug/m3 5.0 2.0

1,4-Dioxane B029451-BLK1 ND ug/m3 2.0 0.54

Ethanol B029451-BLK1 ND ug/m3 2.0 0.74

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 50 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

Quality Control Report - Method Blank Analysis

Constituent QC Sample ID MB Result Units PQL MDL Lab Quals

QC Batch ID: B029451 Ethyl acetate B029451-BLK1 ND ug/m3 2.0 0.40

Ethylbenzene B029451-BLK1 ND ug/m3 5.0 0.36

1-Ethyl-4-methylbenzene B029451-BLK1 ND ug/m3 5.0 0.55

n-Heptane B029451-BLK1 ND ug/m3 2.0 0.30

Hexachlorobutadiene B029451-BLK1 ND ug/m3 10 2.5

Hexane B029451-BLK1 ND ug/m3 5.0 0.20

2-Hexanone B029451-BLK1 ND ug/m3 5.0 0.34

Isopropyl alcohol B029451-BLK1 ND ug/m3 2.0 0.47

Methylene chloride B029451-BLK1 ND ug/m3 10 0.24

Methyl ethyl ketone B029451-BLK1 ND ug/m3 2.0 0.42

Methyl isobutyl ketone B029451-BLK1 ND ug/m3 5.0 0.70

Methyl t-butyl ether B029451-BLK1 ND ug/m3 2.0 0.36

Propylene B029451-BLK1 ND ug/m3 2.0 0.090

Styrene B029451-BLK1 ND ug/m3 5.0 0.38

1,1,2,2-Tetrachloroethane B029451-BLK1 ND ug/m3 5.0 1.1

Tetrachloroethene B029451-BLK1 ND ug/m3 2.0 0.34

Tetrahydrofuran B029451-BLK1 ND ug/m3 2.0 0.42

Toluene B029451-BLK1 ND ug/m3 2.0 0.19

1,2,4-Trichlorobenzene B029451-BLK1 ND ug/m3 10 0.58

1,1,1-Trichloroethane B029451-BLK1 ND ug/m3 5.0 0.28

1,1,2-Trichloroethane B029451-BLK1 ND ug/m3 5.0 0.28

Trichloroethene B029451-BLK1 ND ug/m3 2.0 0.38

Trichlorofluoromethane B029451-BLK1 ND ug/m3 5.0 0.30

1,1,2-Trichloro-1,2,2-trifluoroethane B029451-BLK1 ND ug/m3 5.0 0.39

1,2,4-Trimethylbenzene B029451-BLK1 ND ug/m3 5.0 0.64

1,3,5-Trimethylbenzene B029451-BLK1 ND ug/m3 5.0 1.5

Vinyl acetate B029451-BLK1 ND ug/m3 2.0 0.31

Vinyl chloride B029451-BLK1 ND ug/m3 2.0 0.29

p- & m-Xylenes B029451-BLK1 ND ug/m3 5.0 0.83

o-Xylene B029451-BLK1 ND ug/m3 5.0 0.53

Total Xylenes B029451-BLK1 ND ug/m3 10 1.4

4-Bromofluorobenzene (Surrogate) B029451-BLK1 58.1 % 70 - 130 (LCL - UCL)

QC Batch ID: B029542

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 51 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

Quality Control Report - Method Blank Analysis

Constituent QC Sample ID MB Result Units PQL MDL Lab Quals

QC Batch ID: B029542 Acetone B029542-BLK1 ND ug/m3 5.0 0.39

Acrylonitrile B029542-BLK1 ND ug/m3 2.0 0.22

Allyl chloride B029542-BLK1 ND ug/m3 2.0 0.26

Benzene B029542-BLK1 ND ug/m3 2.0 0.16

Benzyl chloride B029542-BLK1 ND ug/m3 10 0.63

Bromodichloromethane B029542-BLK1 ND ug/m3 5.0 0.40

Bromoform B029542-BLK1 ND ug/m3 10 0.71

Bromomethane B029542-BLK1 ND ug/m3 2.0 0.55

1,3-Butadiene B029542-BLK1 ND ug/m3 2.0 0.25

Carbon disulfide B029542-BLK1 ND ug/m3 2.0 0.16

Carbon tetrachloride B029542-BLK1 ND ug/m3 5.0 0.38

Chlorobenzene B029542-BLK1 ND ug/m3 5.0 0.33

Chloroethane B029542-BLK1 ND ug/m3 2.0 0.32

Chloroform B029542-BLK1 ND ug/m3 5.0 0.25

Chloromethane B029542-BLK1 ND ug/m3 2.0 0.29

Cyclohexane B029542-BLK1 ND ug/m3 2.0 0.18

Dibromochloromethane B029542-BLK1 ND ug/m3 5.0 0.43

1,2-Dibromoethane B029542-BLK1 ND ug/m3 5.0 0.41

1,2-Dichlorobenzene B029542-BLK1 ND ug/m3 5.0 0.39

1,3-Dichlorobenzene B029542-BLK1 ND ug/m3 5.0 0.61

1,4-Dichlorobenzene B029542-BLK1 ND ug/m3 5.0 0.55

Dichlorodifluoromethane B029542-BLK1 ND ug/m3 5.0 0.38

1,1-Dichloroethane B029542-BLK1 ND ug/m3 5.0 0.28

1,2-Dichloroethane B029542-BLK1 ND ug/m3 5.0 0.21

1,1-Dichloroethene B029542-BLK1 ND ug/m3 5.0 0.20

cis-1,2-Dichloroethene B029542-BLK1 ND ug/m3 2.0 0.23

trans-1,2-Dichloroethene B029542-BLK1 ND ug/m3 2.0 0.20

1,2-Dichloropropane B029542-BLK1 ND ug/m3 5.0 0.30

cis-1,3-Dichloropropene B029542-BLK1 ND ug/m3 5.0 0.23

trans-1,3-Dichloropropene B029542-BLK1 ND ug/m3 5.0 0.30

1,2-Dichloro-1,1,2,2-tetrafluoroethane B029542-BLK1 ND ug/m3 5.0 0.77

1,1-Difluoroethane B029542-BLK1 ND ug/m3 5.0 2.0

1,4-Dioxane B029542-BLK1 ND ug/m3 2.0 0.54

Ethanol B029542-BLK1 ND ug/m3 2.0 0.74

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 52 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

Quality Control Report - Method Blank Analysis

Constituent QC Sample ID MB Result Units PQL MDL Lab Quals

QC Batch ID: B029542 Ethyl acetate B029542-BLK1 ND ug/m3 2.0 0.40

Ethylbenzene B029542-BLK1 ND ug/m3 5.0 0.36

1-Ethyl-4-methylbenzene B029542-BLK1 ND ug/m3 5.0 0.55

n-Heptane B029542-BLK1 ND ug/m3 2.0 0.30

Hexachlorobutadiene B029542-BLK1 ND ug/m3 10 2.5

Hexane B029542-BLK1 ND ug/m3 5.0 0.20

2-Hexanone B029542-BLK1 ND ug/m3 5.0 0.34

Isopropyl alcohol B029542-BLK1 ND ug/m3 2.0 0.47

Methylene chloride B029542-BLK1 ND ug/m3 10 0.24

Methyl ethyl ketone B029542-BLK1 ND ug/m3 2.0 0.42

Methyl isobutyl ketone B029542-BLK1 ND ug/m3 5.0 0.70

Methyl t-butyl ether B029542-BLK1 ND ug/m3 2.0 0.36

Propylene B029542-BLK1 ND ug/m3 2.0 0.090

Styrene B029542-BLK1 ND ug/m3 5.0 0.38

1,1,2,2-Tetrachloroethane B029542-BLK1 ND ug/m3 5.0 1.1

Tetrachloroethene B029542-BLK1 ND ug/m3 2.0 0.34

Tetrahydrofuran B029542-BLK1 ND ug/m3 2.0 0.42

Toluene B029542-BLK1 ND ug/m3 2.0 0.19

1,2,4-Trichlorobenzene B029542-BLK1 ND ug/m3 10 0.58

1,1,1-Trichloroethane B029542-BLK1 ND ug/m3 5.0 0.28

1,1,2-Trichloroethane B029542-BLK1 ND ug/m3 5.0 0.28

Trichloroethene B029542-BLK1 ND ug/m3 2.0 0.38

Trichlorofluoromethane B029542-BLK1 ND ug/m3 5.0 0.30

1,1,2-Trichloro-1,2,2-trifluoroethane B029542-BLK1 ND ug/m3 5.0 0.39

1,2,4-Trimethylbenzene B029542-BLK1 ND ug/m3 5.0 0.64

1,3,5-Trimethylbenzene B029542-BLK1 ND ug/m3 5.0 1.5

Vinyl acetate B029542-BLK1 ND ug/m3 2.0 0.31

Vinyl chloride B029542-BLK1 ND ug/m3 2.0 0.29

p- & m-Xylenes B029542-BLK1 ND ug/m3 5.0 0.83

o-Xylene B029542-BLK1 ND ug/m3 5.0 0.53

Total Xylenes B029542-BLK1 ND ug/m3 10 1.4

4-Bromofluorobenzene (Surrogate) B029542-BLK1 95.2 % 70 - 130 (LCL - UCL)

QC Batch ID: B029725

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 53 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

Quality Control Report - Method Blank Analysis

Constituent QC Sample ID MB Result Units PQL MDL Lab Quals

QC Batch ID: B029725 Acetone B029725-BLK1 ND ug/m3 5.0 0.39

Acrylonitrile B029725-BLK1 ND ug/m3 2.0 0.22

Allyl chloride B029725-BLK1 ND ug/m3 2.0 0.26

Benzene B029725-BLK1 ND ug/m3 2.0 0.16

Benzyl chloride B029725-BLK1 ND ug/m3 10 0.63

Bromodichloromethane B029725-BLK1 ND ug/m3 5.0 0.40

Bromoform B029725-BLK1 ND ug/m3 10 0.71

Bromomethane B029725-BLK1 ND ug/m3 2.0 0.55

1,3-Butadiene B029725-BLK1 ND ug/m3 2.0 0.25

Carbon disulfide B029725-BLK1 ND ug/m3 2.0 0.16

Carbon tetrachloride B029725-BLK1 ND ug/m3 5.0 0.38

Chlorobenzene B029725-BLK1 ND ug/m3 5.0 0.33

Chloroethane B029725-BLK1 ND ug/m3 2.0 0.32

Chloroform B029725-BLK1 ND ug/m3 5.0 0.25

Chloromethane B029725-BLK1 ND ug/m3 2.0 0.29

Cyclohexane B029725-BLK1 ND ug/m3 2.0 0.18

Dibromochloromethane B029725-BLK1 ND ug/m3 5.0 0.43

1,2-Dibromoethane B029725-BLK1 ND ug/m3 5.0 0.41

1,2-Dichlorobenzene B029725-BLK1 ND ug/m3 5.0 0.39

1,3-Dichlorobenzene B029725-BLK1 ND ug/m3 5.0 0.61

1,4-Dichlorobenzene B029725-BLK1 ND ug/m3 5.0 0.55

Dichlorodifluoromethane B029725-BLK1 ND ug/m3 5.0 0.38

1,1-Dichloroethane B029725-BLK1 ND ug/m3 5.0 0.28

1,2-Dichloroethane B029725-BLK1 ND ug/m3 5.0 0.21

1,1-Dichloroethene B029725-BLK1 ND ug/m3 5.0 0.20

cis-1,2-Dichloroethene B029725-BLK1 ND ug/m3 2.0 0.23

trans-1,2-Dichloroethene B029725-BLK1 ND ug/m3 2.0 0.20

1,2-Dichloropropane B029725-BLK1 ND ug/m3 5.0 0.30

cis-1,3-Dichloropropene B029725-BLK1 ND ug/m3 5.0 0.23

trans-1,3-Dichloropropene B029725-BLK1 ND ug/m3 5.0 0.30

1,2-Dichloro-1,1,2,2-tetrafluoroethane B029725-BLK1 ND ug/m3 5.0 0.77

1,1-Difluoroethane B029725-BLK1 ND ug/m3 5.0 2.0

1,4-Dioxane B029725-BLK1 ND ug/m3 2.0 0.54

Ethanol B029725-BLK1 ND ug/m3 2.0 0.74

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 54 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

Quality Control Report - Method Blank Analysis

Constituent QC Sample ID MB Result Units PQL MDL Lab Quals

QC Batch ID: B029725 Ethyl acetate B029725-BLK1 ND ug/m3 2.0 0.40

Ethylbenzene B029725-BLK1 ND ug/m3 5.0 0.36

1-Ethyl-4-methylbenzene B029725-BLK1 ND ug/m3 5.0 0.55

n-Heptane B029725-BLK1 ND ug/m3 2.0 0.30

Hexachlorobutadiene B029725-BLK1 ND ug/m3 10 2.5

Hexane B029725-BLK1 ND ug/m3 5.0 0.20

2-Hexanone B029725-BLK1 ND ug/m3 5.0 0.34

Isopropyl alcohol B029725-BLK1 ND ug/m3 2.0 0.47

Methylene chloride B029725-BLK1 ND ug/m3 10 0.24

Methyl ethyl ketone B029725-BLK1 ND ug/m3 2.0 0.42

Methyl isobutyl ketone B029725-BLK1 ND ug/m3 5.0 0.70

Methyl t-butyl ether B029725-BLK1 ND ug/m3 2.0 0.36

Propylene B029725-BLK1 ND ug/m3 2.0 0.090

Styrene B029725-BLK1 ND ug/m3 5.0 0.38

1,1,2,2-Tetrachloroethane B029725-BLK1 ND ug/m3 5.0 1.1

Tetrachloroethene B029725-BLK1 ND ug/m3 2.0 0.34

Tetrahydrofuran B029725-BLK1 ND ug/m3 2.0 0.42

Toluene B029725-BLK1 ND ug/m3 2.0 0.19

1,2,4-Trichlorobenzene B029725-BLK1 ND ug/m3 10 0.58

1,1,1-Trichloroethane B029725-BLK1 ND ug/m3 5.0 0.28

1,1,2-Trichloroethane B029725-BLK1 ND ug/m3 5.0 0.28

Trichloroethene B029725-BLK1 ND ug/m3 2.0 0.38

Trichlorofluoromethane B029725-BLK1 ND ug/m3 5.0 0.30

1,1,2-Trichloro-1,2,2-trifluoroethane B029725-BLK1 ND ug/m3 5.0 0.39

1,2,4-Trimethylbenzene B029725-BLK1 ND ug/m3 5.0 0.64

1,3,5-Trimethylbenzene B029725-BLK1 ND ug/m3 5.0 1.5

Vinyl acetate B029725-BLK1 ND ug/m3 2.0 0.31

Vinyl chloride B029725-BLK1 ND ug/m3 2.0 0.29

p- & m-Xylenes B029725-BLK1 ND ug/m3 5.0 0.83

o-Xylene B029725-BLK1 ND ug/m3 5.0 0.53

Total Xylenes B029725-BLK1 ND ug/m3 10 1.4

4-Bromofluorobenzene (Surrogate) B029725-BLK1 90.6 % 70 - 130 (LCL - UCL)

QC Batch ID: B029798

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 55 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

Quality Control Report - Method Blank Analysis

Constituent QC Sample ID MB Result Units PQL MDL Lab Quals

QC Batch ID: B029798 Acetone B029798-BLK1 ND ug/m3 5.0 0.39

Acrylonitrile B029798-BLK1 ND ug/m3 2.0 0.22

Allyl chloride B029798-BLK1 ND ug/m3 2.0 0.26

Benzene B029798-BLK1 ND ug/m3 2.0 0.16

Benzyl chloride B029798-BLK1 ND ug/m3 10 0.63

Bromodichloromethane B029798-BLK1 ND ug/m3 5.0 0.40

Bromoform B029798-BLK1 ND ug/m3 10 0.71

Bromomethane B029798-BLK1 ND ug/m3 2.0 0.55

1,3-Butadiene B029798-BLK1 ND ug/m3 2.0 0.25

Carbon disulfide B029798-BLK1 ND ug/m3 2.0 0.16

Carbon tetrachloride B029798-BLK1 ND ug/m3 5.0 0.38

Chlorobenzene B029798-BLK1 ND ug/m3 5.0 0.33

Chloroethane B029798-BLK1 ND ug/m3 2.0 0.32

Chloroform B029798-BLK1 ND ug/m3 5.0 0.25

Chloromethane B029798-BLK1 ND ug/m3 2.0 0.29

Cyclohexane B029798-BLK1 ND ug/m3 2.0 0.18

Dibromochloromethane B029798-BLK1 ND ug/m3 5.0 0.43

1,2-Dibromoethane B029798-BLK1 ND ug/m3 5.0 0.41

1,2-Dichlorobenzene B029798-BLK1 ND ug/m3 5.0 0.39

1,3-Dichlorobenzene B029798-BLK1 ND ug/m3 5.0 0.61

1,4-Dichlorobenzene B029798-BLK1 ND ug/m3 5.0 0.55

Dichlorodifluoromethane B029798-BLK1 ND ug/m3 5.0 0.38

1,1-Dichloroethane B029798-BLK1 ND ug/m3 5.0 0.28

1,2-Dichloroethane B029798-BLK1 ND ug/m3 5.0 0.21

1,1-Dichloroethene B029798-BLK1 ND ug/m3 5.0 0.20

cis-1,2-Dichloroethene B029798-BLK1 ND ug/m3 2.0 0.23

trans-1,2-Dichloroethene B029798-BLK1 ND ug/m3 2.0 0.20

1,2-Dichloropropane B029798-BLK1 ND ug/m3 5.0 0.30

cis-1,3-Dichloropropene B029798-BLK1 ND ug/m3 5.0 0.23

trans-1,3-Dichloropropene B029798-BLK1 ND ug/m3 5.0 0.30

1,2-Dichloro-1,1,2,2-tetrafluoroethane B029798-BLK1 ND ug/m3 5.0 0.77

1,1-Difluoroethane B029798-BLK1 ND ug/m3 5.0 2.0

1,4-Dioxane B029798-BLK1 ND ug/m3 2.0 0.54

Ethanol B029798-BLK1 ND ug/m3 2.0 0.74

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 56 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

Quality Control Report - Method Blank Analysis

Constituent QC Sample ID MB Result Units PQL MDL Lab Quals

QC Batch ID: B029798 Ethyl acetate B029798-BLK1 ND ug/m3 2.0 0.40

Ethylbenzene B029798-BLK1 ND ug/m3 5.0 0.36

1-Ethyl-4-methylbenzene B029798-BLK1 ND ug/m3 5.0 0.55

n-Heptane B029798-BLK1 ND ug/m3 2.0 0.30

Hexachlorobutadiene B029798-BLK1 ND ug/m3 10 2.5

Hexane B029798-BLK1 ND ug/m3 5.0 0.20

2-Hexanone B029798-BLK1 ND ug/m3 5.0 0.34

Isopropyl alcohol B029798-BLK1 ND ug/m3 2.0 0.47

Methylene chloride B029798-BLK1 ND ug/m3 10 0.24

Methyl ethyl ketone B029798-BLK1 ND ug/m3 2.0 0.42

Methyl isobutyl ketone B029798-BLK1 ND ug/m3 5.0 0.70

Methyl t-butyl ether B029798-BLK1 ND ug/m3 2.0 0.36

Propylene B029798-BLK1 ND ug/m3 2.0 0.090

Styrene B029798-BLK1 ND ug/m3 5.0 0.38

1,1,2,2-Tetrachloroethane B029798-BLK1 ND ug/m3 5.0 1.1

Tetrachloroethene B029798-BLK1 ND ug/m3 2.0 0.34

Tetrahydrofuran B029798-BLK1 ND ug/m3 2.0 0.42

Toluene B029798-BLK1 ND ug/m3 2.0 0.19

1,2,4-Trichlorobenzene B029798-BLK1 ND ug/m3 10 0.58

1,1,1-Trichloroethane B029798-BLK1 ND ug/m3 5.0 0.28

1,1,2-Trichloroethane B029798-BLK1 ND ug/m3 5.0 0.28

Trichloroethene B029798-BLK1 ND ug/m3 2.0 0.38

Trichlorofluoromethane B029798-BLK1 ND ug/m3 5.0 0.30

1,1,2-Trichloro-1,2,2-trifluoroethane B029798-BLK1 ND ug/m3 5.0 0.39

1,2,4-Trimethylbenzene B029798-BLK1 ND ug/m3 5.0 0.64

1,3,5-Trimethylbenzene B029798-BLK1 ND ug/m3 5.0 1.5

Vinyl acetate B029798-BLK1 ND ug/m3 2.0 0.31

Vinyl chloride B029798-BLK1 ND ug/m3 2.0 0.29

p- & m-Xylenes B029798-BLK1 ND ug/m3 5.0 0.83

o-Xylene B029798-BLK1 ND ug/m3 5.0 0.53

Total Xylenes B029798-BLK1 ND ug/m3 10 1.4

4-Bromofluorobenzene (Surrogate) B029798-BLK1 60.5 % 70 - 130 (LCL - UCL)

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 57 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

Quality Control Report - Laboratory Control Sample Control Limits Spike Percent Percent Lab Constituent QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quals

QC Batch ID: B029418 Benzene B029418-BS1 LCS 16.932 15.974 ug/m3 106 70 - 130 B029418-BSD1 LCSD 16.868 15.974 ug/m3 106 0.4 70 - 130 30

Chloroform B029418-BS1 LCS 27.440 24.413 ug/m3 112 70 - 130 B029418-BSD1 LCSD 27.489 24.413 ug/m3 113 0.2 70 - 130 30

Ethylbenzene B029418-BS1 LCS 22.970 21.711 ug/m3 106 70 - 130 B029418-BSD1 LCSD 23.361 21.711 ug/m3 108 1.7 70 - 130 30

Tetrachloroethene B029418-BS1 LCS 34.320 33.913 ug/m3 101 70 - 130 B029418-BSD1 LCSD 35.269 33.913 ug/m3 104 2.7 70 - 130 30

Toluene B029418-BS1 LCS 18.428 18.842 ug/m3 97.8 70 - 130 B029418-BSD1 LCSD 18.277 18.842 ug/m3 97.0 0.8 70 - 130 30

Trichloroethene B029418-BS1 LCS 28.588 26.869 ug/m3 106 70 - 130 B029418-BSD1 LCSD 28.588 26.869 ug/m3 106 0 70 - 130 30

Trichlorofluoromethane B029418-BS1 LCS 32.867 28.092 ug/m3 117 70 - 130 B029418-BSD1 LCSD 33.148 28.092 ug/m3 118 0.9 70 - 130 30

1,1,2-Trichloro-1,2,2-trifluoroethane B029418-BS1 LCS 43.989 38.318 ug/m3 115 70 - 130 B029418-BSD1 LCSD 44.602 38.318 ug/m3 116 1.4 70 - 130 30

p- & m-Xylenes B029418-BS1 LCS 44.811 43.421 ug/m3 103 70 - 130 B029418-BSD1 LCSD 45.288 43.421 ug/m3 104 1.1 70 - 130 30

o-Xylene B029418-BS1 LCS 22.362 21.711 ug/m3 103 70 - 130 B029418-BSD1 LCSD 22.405 21.711 ug/m3 103 0.2 70 - 130 30

Total Xylenes B029418-BS1 LCS 67.173 65.132 ug/m3 103 70 - 130 B029418-BSD1 LCSD 67.694 65.132 ug/m3 104 0.8 70 - 130 30

4-Bromofluorobenzene (Surrogate) B029418-BS1 LCS 67.1 71.6 ug/m3 93.8 70 - 130 B029418-BSD1 LCSD 66.1 71.6 ug/m3 92.3 1.6 70 - 130

QC Batch ID: B029451 Benzene B029451-BS1 LCS 12.012 15.974 ug/m3 75.2 70 - 130 B029451-BSD1 LCSD 11.920 15.974 ug/m3 74.6 0.8 70 - 130 30

Chloroform B029451-BS1 LCS 18.373 24.413 ug/m3 75.3 70 - 130 B029451-BSD1 LCSD 18.524 24.413 ug/m3 75.9 0.8 70 - 130 30

Ethylbenzene B029451-BS1 LCS 18.094 21.711 ug/m3 83.3 70 - 130 B029451-BSD1 LCSD 18.011 21.711 ug/m3 83.0 0.5 70 - 130 30

Tetrachloroethene B029451-BS1 LCS 29.267 33.913 ug/m3 86.3 70 - 130 B029451-BSD1 LCSD 29.396 33.913 ug/m3 86.7 0.4 70 - 130 30

Toluene B029451-BS1 LCS 16.747 18.842 ug/m3 88.9 70 - 130 B029451-BSD1 LCSD 16.540 18.842 ug/m3 87.8 1.2 70 - 130 30

Trichloroethene B029451-BS1 LCS 23.376 26.869 ug/m3 87.0 70 - 130 B029451-BSD1 LCSD 23.623 26.869 ug/m3 87.9 1.1 70 - 130 30

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 58 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

Quality Control Report - Laboratory Control Sample Control Limits Spike Percent Percent Lab Constituent QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quals

QC Batch ID: B029451 Trichlorofluoromethane B029451-BS1 LCS 21.013 28.092 ug/m3 74.8 70 - 130 B029451-BSD1 LCSD 20.709 28.092 ug/m3 73.7 1.5 70 - 130 30

1,1,2-Trichloro-1,2,2-trifluoroethane B029451-BS1 LCS 29.091 38.318 ug/m3 75.9 70 - 130 B029451-BSD1 LCSD 28.800 38.318 ug/m3 75.2 1.0 70 - 130 30

p- & m-Xylenes B029451-BS1 LCS 39.743 43.421 ug/m3 91.5 70 - 130 B029451-BSD1 LCSD 40.165 43.421 ug/m3 92.5 1.1 70 - 130 30

o-Xylene B029451-BS1 LCS 19.692 21.711 ug/m3 90.7 70 - 130 B029451-BSD1 LCSD 20.078 21.711 ug/m3 92.5 1.9 70 - 130 30

Total Xylenes B029451-BS1 LCS 59.435 65.132 ug/m3 91.3 70 - 130 B029451-BSD1 LCSD 60.243 65.132 ug/m3 92.5 1.3 70 - 130 30

4-Bromofluorobenzene (Surrogate) B029451-BS1 LCS 62.6 71.6 ug/m3 87.5 70 - 130 B029451-BSD1 LCSD 62.9 71.6 ug/m3 87.9 0.5 70 - 130

QC Batch ID: B029542 Benzene B029542-BS1 LCS 15.303 15.974 ug/m3 95.8 70 - 130 B029542-BSD1 LCSD 15.463 15.974 ug/m3 96.8 1.0 70 - 130 30

Chloroform B029542-BS1 LCS 24.706 24.413 ug/m3 101 70 - 130 B029542-BSD1 LCSD 24.706 24.413 ug/m3 101 0 70 - 130 30

Ethylbenzene B029542-BS1 LCS 19.800 21.711 ug/m3 91.2 70 - 130 B029542-BSD1 LCSD 20.061 21.711 ug/m3 92.4 1.3 70 - 130 30

Tetrachloroethene B029542-BS1 LCS 32.353 33.913 ug/m3 95.4 70 - 130 B029542-BSD1 LCSD 32.353 33.913 ug/m3 95.4 0 70 - 130 30

Toluene B029542-BS1 LCS 16.393 18.842 ug/m3 87.0 70 - 130 B029542-BSD1 LCSD 16.355 18.842 ug/m3 86.8 0.2 70 - 130 30

Trichloroethene B029542-BS1 LCS 26.063 26.869 ug/m3 97.0 70 - 130 B029542-BSD1 LCSD 25.472 26.869 ug/m3 94.8 2.3 70 - 130 30

Trichlorofluoromethane B029542-BS1 LCS 31.069 28.092 ug/m3 111 70 - 130 B029542-BSD1 LCSD 30.901 28.092 ug/m3 110 0.5 70 - 130 30

1,1,2-Trichloro-1,2,2-trifluoroethane B029542-BS1 LCS 40.771 38.318 ug/m3 106 70 - 130 B029542-BSD1 LCSD 40.541 38.318 ug/m3 106 0.6 70 - 130 30

p- & m-Xylenes B029542-BS1 LCS 38.688 43.421 ug/m3 89.1 70 - 130 B029542-BSD1 LCSD 39.427 43.421 ug/m3 90.8 1.9 70 - 130 30

o-Xylene B029542-BS1 LCS 19.149 21.711 ug/m3 88.2 70 - 130 B029542-BSD1 LCSD 19.713 21.711 ug/m3 90.8 2.9 70 - 130 30

Total Xylenes B029542-BS1 LCS 57.837 65.132 ug/m3 88.8 70 - 130 B029542-BSD1 LCSD 59.140 65.132 ug/m3 90.8 2.2 70 - 130 30

4-Bromofluorobenzene (Surrogate) B029542-BS1 LCS 72.0 71.6 ug/m3 101 70 - 130 B029542-BSD1 LCSD 73.5 71.6 ug/m3 103 2.1 70 - 130

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 59 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

Quality Control Report - Laboratory Control Sample Control Limits Spike Percent Percent Lab Constituent QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quals

QC Batch ID: B029725 Benzene B029725-BS1 LCS 15.942 15.974 ug/m3 99.8 70 - 130 B029725-BSD1 LCSD 15.718 15.974 ug/m3 98.4 1.4 70 - 130 30

Chloroform B029725-BS1 LCS 23.436 24.413 ug/m3 96.0 70 - 130 B029725-BSD1 LCSD 23.485 24.413 ug/m3 96.2 0.2 70 - 130 30

Ethylbenzene B029725-BS1 LCS 23.491 21.711 ug/m3 108 70 - 130 B029725-BSD1 LCSD 22.536 21.711 ug/m3 104 4.2 70 - 130 30

Tetrachloroethene B029725-BS1 LCS 32.488 33.913 ug/m3 95.8 70 - 130 B029725-BSD1 LCSD 32.692 33.913 ug/m3 96.4 0.6 70 - 130 30

Toluene B029725-BS1 LCS 18.955 18.842 ug/m3 101 70 - 130 B029725-BSD1 LCSD 18.767 18.842 ug/m3 99.6 1.0 70 - 130 30

Trichloroethene B029725-BS1 LCS 27.943 26.869 ug/m3 104 70 - 130 B029725-BSD1 LCSD 26.707 26.869 ug/m3 99.4 4.5 70 - 130 30

Trichlorofluoromethane B029725-BS1 LCS 27.755 28.092 ug/m3 98.8 70 - 130 B029725-BSD1 LCSD 27.305 28.092 ug/m3 97.2 1.6 70 - 130 30

1,1,2-Trichloro-1,2,2-trifluoroethane B029725-BS1 LCS 37.552 38.318 ug/m3 98.0 70 - 130 B029725-BSD1 LCSD 36.632 38.318 ug/m3 95.6 2.5 70 - 130 30

p- & m-Xylenes B029725-BS1 LCS 44.333 43.421 ug/m3 102 70 - 130 B029725-BSD1 LCSD 43.074 43.421 ug/m3 99.2 2.9 70 - 130 30

o-Xylene B029725-BS1 LCS 21.971 21.711 ug/m3 101 70 - 130 B029725-BSD1 LCSD 21.971 21.711 ug/m3 101 0 70 - 130 30

Total Xylenes B029725-BS1 LCS 66.304 65.132 ug/m3 102 70 - 130 B029725-BSD1 LCSD 65.045 65.132 ug/m3 99.9 1.9 70 - 130 30

4-Bromofluorobenzene (Surrogate) B029725-BS1 LCS 70.7 71.6 ug/m3 98.8 70 - 130 B029725-BSD1 LCSD 71.2 71.6 ug/m3 99.5 0.7 70 - 130

QC Batch ID: B029798 Benzene B029798-BS1 LCS 12.753 15.974 ug/m3 79.8 70 - 130 B029798-BSD1 LCSD 12.501 15.974 ug/m3 78.3 2.0 70 - 130 30

Chloroform B029798-BS1 LCS 19.896 24.413 ug/m3 81.5 70 - 130 B029798-BSD1 LCSD 19.794 24.413 ug/m3 81.1 0.5 70 - 130 30

Ethylbenzene B029798-BS1 LCS 17.994 21.711 ug/m3 82.9 70 - 130 B029798-BSD1 LCSD 17.846 21.711 ug/m3 82.2 0.8 70 - 130 30

Tetrachloroethene B029798-BS1 LCS 33.655 33.913 ug/m3 99.2 70 - 130 B029798-BSD1 LCSD 33.160 33.913 ug/m3 97.8 1.5 70 - 130 30

Toluene B029798-BS1 LCS 18.997 18.842 ug/m3 101 70 - 130 B029798-BSD1 LCSD 19.027 18.842 ug/m3 101 0.2 70 - 130 30

Trichloroethene B029798-BS1 LCS 27.911 26.869 ug/m3 104 70 - 130 B029798-BSD1 LCSD 27.530 26.869 ug/m3 102 1.4 70 - 130 30

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 60 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

Quality Control Report - Laboratory Control Sample Control Limits Spike Percent Percent Lab Constituent QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quals

QC Batch ID: B029798 Trichlorofluoromethane B029798-BS1 LCS 22.771 28.092 ug/m3 81.1 70 - 130 B029798-BSD1 LCSD 22.546 28.092 ug/m3 80.3 1.0 70 - 130 30

1,1,2-Trichloro-1,2,2-trifluoroethane B029798-BS1 LCS 31.567 38.318 ug/m3 82.4 70 - 130 B029798-BSD1 LCSD 31.122 38.318 ug/m3 81.2 1.4 70 - 130 30

p- & m-Xylenes B029798-BS1 LCS 39.600 43.421 ug/m3 91.2 70 - 130 B029798-BSD1 LCSD 39.427 43.421 ug/m3 90.8 0.4 70 - 130 30

o-Xylene B029798-BS1 LCS 19.535 21.711 ug/m3 90.0 70 - 130 B029798-BSD1 LCSD 19.587 21.711 ug/m3 90.2 0.3 70 - 130 30

Total Xylenes B029798-BS1 LCS 59.135 65.132 ug/m3 90.8 70 - 130 B029798-BSD1 LCSD 59.014 65.132 ug/m3 90.6 0.2 70 - 130 30

4-Bromofluorobenzene (Surrogate) B029798-BS1 LCS 65.9 71.6 ug/m3 92.1 70 - 130 B029798-BSD1 LCSD 65.6 71.6 ug/m3 91.6 0.5 70 - 130

The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Report ID: 1000820929 Page 61 of 62 Laboratories, Inc. Environmental Testing Laboratory Since 1949

MDL Method Detection Limit

ND Analyte Not Detected

PQL Practical Quantitation Limit

A01 Detection and quantitation limits are raised due to sample dilution.

S09 The surrogate recovery for this compound was not within the control limits.

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ek Buchanan St. Marin Cre

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reek S y C trawberr Bancroft Way

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G ek Dwight Way re C t) San Pablo Ave. on em lar ) d (C ch 7th St. o n ExplanationAquatic Park o ra rw B a w e h Creek H i V c d T n u n Underground culvert ra a n r n (G or storm drain B Ashby Ave. e l k l Rd e C . e e Engineered channel r n C n te u Ashby Ave. n T Artificial body of water e ic V Adeline St. Bay fill Shatt Alcatraz Ave.

u r raph Ave. l k t Ave. Chabot Rd. g n Map prepared by Fugro Consultants, Inc., 2014, for the Alameda County Flood Control and Water Conservation District. 0 2,000 feet Strawberry Creek and Schoolhouse Creek Watersheds 0 1,000 meters Toxic substance experts evaluating air around McClymonds High School... https://www.ktvu.com/news/toxic-substance-experts-evaluating-air-arou... Attachment C ⋮

1 of 2 2/24/2020, 16:29 Toxic substance experts evaluating air around McClymonds High School... https://www.ktvu.com/news/toxic-substance-experts-evaluating-air-arou...

2 of 2 2/24/2020, 16:29