Re: Notice of Intent for Remediation General Permit, ATC Project No

500 Cummings Park, Suite Suite 3750 Woburn, MA 01801 Telephone 781-932-9400 Fax 781-932-6211 www.atcgroupservices.com

July 7, 2017

U.S. Environmental Protection Agency Office of Ecosystem Protection EPA/OEP RGP Applications Coordinator 5 Post Office Square – Suite 100 (OEP06-1) Boston, Massachusetts 02109-3912 [email protected]

Re: Notice of Intent for Remediation General Permit ATC Project No. 0521421103 Cumberland Farms, Inc., 220-226 Pleasant Street, Attleboro, MA Release Tracking Numbers (RTNs): 4-20044, 4-26108, 4-22275, and 4-25516

To Whom it May Concern:

ATC Group Services, LLC (ATC) provides the following Notice of Intent (NOI) for a Remediation General Permit (RGP) for construction dewatering, treatment, and discharge needed for soil excavation and remediation at 220 Pleasant Street, in Attleboro, Massachusetts. A copy of the RGP NOI is included in Attachment A. Based upon the RGP Table 1, the proposed discharge activity would be considered “Type I” Petroleum-Related Site Remediation.

CFI, is the owner and operator of the gasoline station and adjacent property. For this permit application, ATC will be the “operator” of the treatment system.

Background

The Proposed RGP will be performed on two properties located at 220 and 226 Pleasant Street in Attleboro, Massachusetts. The parcel located at 220 Pleasant Street currently operates as a Cumberland Farms Gas Station and Convenience Store. The parcel located at 226 Pleasant Street formerly operated as a takeout window food stand, the Clam Shack and Del’s Lemonade (Building 1), and the adjacent building operated as Custom Craft, an automobile upholstery shop and a carpenter (Building 2). The two buildings at 226 are currently vacant. The property is located next to a Walgreens on the northeast corner of Starkey Avenue and Pleasant Street in the Town of Attleboro, Bristol County, Massachusetts. Universal Transverse Mercator (UTM) coordinates for the 220 Pleasant Street parcel are approximately 4646874 meters North and 311599 meters west. The parcel latitude is approximately 41°57’04.71" North, and longitude is 71°16’ 23.72" West. Universal Transverse Mercator (UTM) coordinates for the 226 Pleasant Street parcel are 4646698.5 meters North and 311611.0 meters west. The parcel latitude is 41°57’ 6.12" North, and longitude is 71°16’ 22.44" West. A Site Locus is provided as Figure 1, and a Site Plan is provided as Figure 2. ATC Project No. 0521421103 July 7, 2017 Cumberland Farms, Inc., 220-226 Pleasant Street, Attleboro, MA Page 2 of 6

At present, the 220 Pleasant Street property is currently improved with a single story, slab-on-grade building, three fuel dispenser islands, and three underground storage tanks (USTs). The gasoline UST system is comprised of three 10,000-gallon double-walled fiberglass US fuel dispensers and ancillary piping.

According to the MassDEP BWSC Site Scoring Map provided as Figure 3, there are no public water supplies or associated Zone II, Zone A or Interim Wellhead Protection Areas located within 500 feet (ft) of the Site. The property is not located within a Potentially Productive Aquifer. According to the Attleboro Water Department, all properties within 500 ft of the Site are serviced with municipal water. No Areas of Critical Environmental Concern, Sole Source Aquifers, Certified Vernal Pools, or Protected Open Space Areas are located within 500 ft. of the Site. The Town of Attleboro considers the project area to be located within an Attleboro aquifer protection district.

The depth to groundwater on the site has historically been reported between 2.6 and 10.2 feet below grade. Dewatering will be conducted as needed during excavation activates. Dewatering will be accomplished through this RGP and the effluent will be discharged into the unnamed wetland northeast of the property. Based on data obtained during the subsurface investigations conducted at the Site, the soil at the site generally consists of sand and silt, with trace amounts of gravel and clay. Some areas also contain fill.

Soil permeability is considered to be medium to low. No bedrock was encountered during soil boring advancement or monitoring well installation. The deepest investigation was to a depth of 18 ft belowground surface (bgs).

Based on the Temporary Solutions created from CFI on April 3rd, 2015, Indicate an average hydraulic conductivity of 1x10-5 meters per second. The average groundwater seepage velocity (Vs) was calculated to be 0.01 ft/day (4.5 ft/year). Utilizing the estimated hydraulic conductivity (K) for the site and the horizontal component of groundwater flow, groundwater velocity (v) can be determined. Groundwater velocity was calculated using the following equation.

v = K (dh/dl) n

where: v = average linear velocity (feet/minute) K = hydraulic conductivity (feet/minute) Dh/dl = difference in water table elevation between two points divided by the distance Between the two points (unitless) n = estimated volumetric porosity (percent)

The groundwater velocity was calculated based on an average hydraulic conductivity (K) of 1x10-5 meters per second (based on based on slug tests conducted during the Phase II), an average dh/dl of 0.015 (between monitoring wells MW-4 and MW-8S), and the estimated n value of 20% or 0.20 (Freeze and Cherry, 1979). The resulting estimated horizontal velocity is 0.01 feet/day or 4.5 feet/year.

Attleboro RPG.docx ATC Project No. 0521421103 July 7, 2017 Cumberland Farms, Inc., 220-226 Pleasant Street, Attleboro, MA Page 3 of 6

Site History

MassDEP has assigned four RTNs to reportable conditions discovered at the 220 and 226 Pleasant Street properties. A summary of the four RTNs is provided below.

Release Tracking Number (RTN) 4-20044 was issued by the MassDEP related to a 72-hour reporting threshold identified in 310 CMR 40.0313(2) of the MCP. The reporting threshold was triggered on September 8, 2006 due to a soil headspace reading of greater than 100 parts per million (ppm) of total organic vapors (TOVs) was encountered within the vicinity of the former UST system.

RTN 4-26108 was issued by the MassDEP related to a 120-day reporting threshold identified in 310 CMR 40.0315(1) of the MCP. The reporting threshold was triggered on January 19, 2016 due to soil and/or groundwater laboratory results for lead, arsenic, chromium, tetrachloro2thane (PCE), cis-1,2- Dichloroethene (cis-DCE), trichloroethene (TCE), dibenzo (a,h,) anthracene, benzo (a) anthracene, benzo (b) fluoranthene, benzo (a) pyrene, and vinyl chloride reported above the respective Reportable Concentration for S-1 soil (RCS-1).

RTN 4-25516 was issued by MassDEP related to a 120-day reporting threshold identified in 310 CMR 40.0315(1) of the MCP. The reporting threshold was triggered on December 31, 2014 due to soil laboratory results for lead, arsenic, and mercury reported above the respective RCS-1.

RTN 4-22275 was issued by MassDEP related to a 120-day reporting threshold identified in 310 CMR 40.0315(1) of the MCP. The reporting threshold was triggered on July 24, 2009 due to soil and/or groundwater laboratory results for vinyl chloride, tetrachloroethene, and trichloroethene. Currently there are two properties, however once construction is complete the two properties will be combined.

Treatment System Design

The groundwater treatment system will be composed of the following: one or more submersible pneumatic or electric pumps to lift groundwater from the sheet pile lined excavation into two aboveground temporary storage tanks, plumed in series. The aboveground tanks have an approximate 20,000-gallon capacity. As needed, aeration will be supplied to the first tank to aid iron oxidation/flocculation. The first tank will be plumed to the second frac tank or weir tank by quick- connect hose. Suspended solids will settle out in both tanks. A skid-mounted transfer pump will be used to push the effluent through dual, parallel-oriented six-bag particulate filters capable of removing down to 5 micron-sized particles. Construction dewatering under this RGP will include piping and discharging the treated effluent into a drain manhole located on the CFI property (220 Pleasant Street). The drain manhole is labelled “Outfall 001” on Figures 1 and 2.

The design capacity of the groundwater treatment system is 250 gpm based upon the opinions of dewatering treatment contractors that have furnished bids to ATC for dewatering and effluent treatment. The average flow is expected to be less, perhaps 100 GPM. Due to the short duration of this project, the discharge will likely not last for more than two weeks. The new tanks will be set and installed over a two to three-day period. Water pumped into the tanks as ballast will be pumped through the treatment system. Once the tanks are backfilled and installed, further dewatering will be unnecessary, and the discharge will be terminated.

Attleboro RPG.docx ATC Project No. 0521421103 July 7, 2017 Cumberland Farms, Inc., 220-226 Pleasant Street, Attleboro, MA Page 4 of 6

Receiving Waters Information

The proposed discharge location for the treated groundwater is a wooded area behind the property that drains into a nearby wetland. The wetland ultimately discharges to an unnamed pond. ATC attaches the MassDEP Phase I Primary Resources Map (Figure 5), which identifies nearby sensitive environmental receptors. The receiving water discharges to a wetland and surface water body that belongs to the Bungay River system, which ultimately drains to the Ten Mile River. According to the MassDEP 21E Map, Figure 3 the area around the Bungay River system is designated as a Medium Yield Aquifer and is located approximately 450 feet to the north northwest of the Site. Pursuant to 314 CMR 4.05(3)(b) the Bungay River is designated as a Class B water body and pursuant to the Bungay River is considered “Warm Water”, where the water has dissolved oxygen and temperature criteria for warm water fisheries apply. According to the Sections 305(b), 314 and 303(d) of the Clean Water Act, the Bungay River has a TMDL for “Pathogens.” The Ten mile River between mile 14 and 0 has a Site Specific Criteria of Copper: acute, 25.7 µg/L and chronic 18.1 µg/L.

Using an MS Excel spreadsheet made available by USEPA, ATC calculated water quality based effluent limits (WQBELs) for the discharge, to assess whether the RGP technology based effluent limits (TBEL) or WQBEL apply. According to the spreadsheet calculation, the only WQBEL that applies is total residual chlorine of 11 ug/L. The spreadsheets are presented in Attachment B.

Influent Sample Analysis

Groundwater samples were collected on May 31, 2017 from monitoring well RGP-1, which is located very near the existing USTs. The samples were analyzed at the Eurofins Laboratory of Agawam, Massachusetts. The samples were handled under standard chain of custody protocol. Chemical analyses of the influent included all RGP Category A through F parameters. The receiving water was analyzed for total calcium, total magnesium, ammonia and hardness. Copies of the laboratory reports and chain of custody are provided in Attachment C. A summary table of the data is included as Table 1. The samples were analyzed following the method guidance listed in the March 9, 2017 RGP. Method detection limits were generally compliant with the requirements, however, some reporting limits were not. Please see the attached data summary table for the details.

Evaluation of Threatened or Endangered Species or Critical Habitats

ATC reviewed United States Department of the Interior, Fish and Wildlife Service, New England Ecological Services Field Office data via internet regarding the endangered species consultation required for the RGP application. The Northern Long-Eared Bat is listed statewide on the list of Federally Listed Endangered and Threatened Species in Massachusetts, however no trees will be cut down and no forested habitats will be altered in the proposed discharge area therefore, our project will have no impact on the Northern Long-Eared Bat. A copy of the list of Federally Listed Endangered and Threatened Species in Massachusetts and a 2017 No Species Present letter are attached as Attachment D. A review of information on the U.S. Fish and Wildlife Service website indicates that the project will not impact federally-listed threatened or endangered species, and no further coordination with the U.S. Fish and Wildlife Service was necessary.

Review of National Register of Historic Places

This project does not involve the demolition or rehabilitation of historic properties. ATC has reviewed Massachusetts Historical Commission databases and found there are no nearby historical assets that will be negatively impacted by the project. It is ATC’s opinion the scope, location, and short

Attleboro RPG.docx ATC Project No. 0521421103 July 7, 2017 Cumberland Farms, Inc., 220-226 Pleasant Street, Attleboro, MA Page 5 of 6 duration of this project will not have any long-term negative effects on the historical attributes of the nearest historical properties. The database results are included as Attachment E.

Notification of Local Officials

In accordance with the public notification requirements outlined in Section 310 CMR 40.1403 (3)(d), notification letters were provided to the City of Attleboro Department of Public Works and Conservation Commission prior to the initiation of the RGP activities. Copies of the notification letters are provided in Attachment F.

Regulation by the Massachusetts Contingency Plan

Lastly, the work being completed is also governed by Massachusetts Contingency Plan (310 CMR 40.0000) under MassDEP RTN 3-13002. A Release Abatement Measure Plan will be provided to the MassDEP before the work is initiated. Discharges subject to the MCP do not require the completion of state application form BRPWM 12 or to pay state fees.

Should you have any questions regarding the contents of this letter or the NOI for the RGP, please do not hesitate to contact the undersigned at (401) 714-0306, extension 142.

Dewatering and Excavation will begin in August, 2017.

Sincerely, ATC Group Services LLC

Rachel Stevens Keith Sullivan Geologist/Project Manager Licensed Site Professional, #1259

CC: CFI MassDEP

Attleboro RPG.docx ATC Project No. 0521421103 July 7, 2017 Cumberland Farms, Inc., 220-226 Pleasant Street, Attleboro, MA Page 6 of 6

FIGURES

FIGURE 1 SITE LOCUS FIGURE 2 SITE PLAN FIGURE 3 MASSDEP BWSC SITE SCORING MAP FIGURE 4 PROPOSED DEWATERING SYSTEM SCHEMATIC

TABLES

TABLE 1 GROUNDWATER DATA SUMMARY

ATTACHMENTS

ATTACHMENT A REMEDIATION GENERAL PERMIT NOTICE OF INTENT ATTACHMENT B WATER QUALITY BASED EFFLUENT LIMITS (WQBELS) SPREADSHEET ATTACHMENT C LABORATORY ANALYTICAL REPORT ATTACHMENT D FEDERALLY LISTED ENDANGERED AND THREATENED SPECIES IN MASSACHUSETTS AND 2017 NO SPECIES PRESENT LETTER ATTACHMENT E MASSACHUSETTS HISTORICAL COMMISSION DATABASE RESULTS ATTACHMENT F PUBLIC NOTIFICATION DOCUMENTATION

Attleboro RPG.docx 500 Cummings Park, Suite Suite 3750 Woburn, MA 01801 Telephone 781-932-9400 Fax 781-932-6211 www.atcgroupservices.com

July 24, 2017

Shauna Little Physical Scientist USEPA New England 5 Post Office Square, Suite 100/OEP06-1 Boston, Massachusetts 02109-3912 [email protected]

Dear Ms. Little,

ATC provides the following letter to answer questions you had concerning the NOI for the above facility.

Question No. 1:

“EPA is unclear if the influent monitoring location requirement specified in Part 4.1.1.a of the RGP has been met. These requirements specify that where multiple and distinct areas of contamination are known, a sample is required from the maximum extent of contamination in each area. Please provide additional data (which can be existing groundwater monitoring data, where available) or provide a clear explanation of sample representativeness.”

Response No. 1:

ATC provides a revised site plan. The revised plan shows where the new USTs and proposed convenience store will be built. The new USTs will be located at the southwest corner of the property, upgradient and cross-gradient of the existing USTs and areas with known groundwater pollution.

To characterize the groundwater in the new UST installation area, ATC installed and sampled temporary well “RGP-1.” RGP-1 is shown on the new drawing, east of the new USTs. ATC believes the sample collected from RGP-1 is representative of the groundwater influent concentrations at the UST installation area.

Additional limited dewatering may also occur when new utilities are installed south of the proposed convenience store. The need for utility dewatering is not yet known. ATC highlights the area where utility dewatering may be needed. ATC Project No. 0521421103 July 24, 2017 Cumberland Farms, Inc., 220-226 Pleasant Street, Attleboro, MA Page 2 of 6

ATC attaches a series of historical groundwater tables extracted from previous MCP reports. The most relevant wells are MW-1 through MW-7. Based upon our review of the historical groundwater data, ATC has revised three pages of the NOI application. The revised pages provide a more accurate description of contaminants “believed present” at wells RGP-1 and MW-1 through MW-7. The source of the low-level chlorinated halogens in wells MW-1 through MW-7 is the MassDEP Texas Instruments site, located at 39 Perry Street, which is upgradient of the CFI project area. ATC’s historical data was obtained using EPA SW-846 Methods 8260, 6010, and MassDEP EPH/VPH. ATC understands these are not typical RGP monitoring methods.

In relying on the historical data, effluent monitoring for halogenated VOCs, BTEX, and fuels parameters is appropriate. Daily maximum and average concentrations are estimated from the most recent result listed in the historical data tables.

Question No. 2:

“The DL for Group I PAHs did not meet the sufficiently sensitive test method requirement of 0.1 ug/L. You may either complete sufficiently sensitive analyses and submit that information prior to authorization, or you can request EPA proceed with authorization as-is following posting, but the authorization to discharge will include additional limits and/or requirements for these parameters. Such requirements can be reduced or eliminated after 6 months and 10 samples, at a minimum, that meet the ML requirements.”

Response No. 2:

Given the time constraints, ATC and CFI would prefer to monitor for Group I PAHs, rather than resample.

Question No. 3:

“Several parameters for which the sample result was non-detect, but contamination types have been selected. Please confirm which parameters within each contamination type that are known or believed present.”

Response No. 3:

Please refer to the three revised NOI pages described above. The revised pages confirm which parameters within each contamination type that are known or believed present.

07242017 RFI Response ATC Project No. 0521421103 July 24, 2017 Cumberland Farms, Inc., 220-226 Pleasant Street, Attleboro, MA Page 3 of 6

Lastly, the electronic file of WQBEL calculations will be sent to you via email. This table was revised taking into account historical data. Based upon the use of the historical data, the PCE water quality based effluent limit was identified.

If we can be of further assistance, please call the undersigned at 401-714-0306, extension 142.

Sincerely, ATC Group Services LLC

Rachel Stevens Keith Sullivan Geologist/Project Manager Licensed Site Professional, #1259

Attachment A – Revised Site Plan Attachment B – Historical Tabulated MCP Laboratory Data Attachment C – Revised NOI Pages

07242017 RFI Response

Attachment A

Revised Site Plan

Attachment B

Historical Tabulated MCP Laboratory Data

07242017 Request for Infomation Reply Project #95-214211 Table 1 Cumberland Farms Station #2439 Summary of Groundwater Analytical Results 220 Pleasant Street Volatile Petroleum Hydrocarbons (VPH) and Target Volatile Organic Compounds (VOCs) Attleboro, Massachusetts (MADEP Method VPH-04-1.1)

Monitoring Date Well Depth to Depth to Water Table C5-C8 C9-C12 C9-C10 Ethyl- Total Methyl Tert Dissolved Well Sampled Elevation* Water Bottom Elevation Aliphatics Aliphatics Aromatics Benzene Toluene benzene Xylenes Butyl Ether Lead Naphthalene ID (feet) (feet) (feet) (feet) (μg/l) (μg/l) (μg/l) (μg/l) (μg/l) (μg/l) (μg/l) (μg/l) (μg/l) (μg/l) Method 1 GW-1 Standard 300 700 200 5 1,000 700 10,000 70 15 140 Method 1 GW-2 Standard 3,000 5,000 4,000 1,000 50,000 20,000 3,000 50,000 NA 700 Method 1 GW-3 Standard 50,000 50,000 50,000 10,000 40,000 5,000 5,000 50,000 10 20,000 MW-1 screen: 4-14' 03/28/07 98.2 5.52 12.30 92.68 77 260 710 8 <5 7 200 19 NM 19 06/18/07 98.17 6.17 13.34 92.00 <100 210 430 7 <25 <25 33 <25 NM <25 08/01/07 98.17 6.69 13.34 91.48 68 75 120 3 <5 <5 5 8 NM 5 07/21/09 98.17 6.33 13.90 91.84 NM NM NM NM NM NM NM NM NM NM 10/16/09 98.17 6.76 13.32 91.41 NM NM NM NM NM NM NM NM NM NM 03/19/10 98.17 5.15 NM 93.02 <50 <50 <50 <2 <2 <2 <4 3.9 NM <3 06/08/10 98.17 6.59 13.33 91.58 <20 <20 <20 <1 <5 <5 <10 <5 NM <5 09/15/10 98.17 7.41 13.33 90.76 25 <20 <20 <1 <5 <5 <10 <5 NM <5 12/02/10 98.17 6.49 13.25 91.68 25 <20 <20 <1 <5 <5 <10 <5 NM <5 03/31/11 98.17 6.18 13.30 91.99 <20 24 54 1 <5 <5 <10 <5 NM <5 06/23/11 98.17 6.44 13.30 91.73 <20 <20 <20 1 <5 <5 <10 <5 NM <5 12/20/11 98.17 6.03 NM 92.14 <75 <25 <25 <5 <5 <5 <10 <5 NM <5 04/25/12 98.17 6.28 NM 91.89 <75.0 <25.0 <25.0 11.8 <5.0 <5.0 <10.0 <5.0 NM <5.0 10/30/12 98.17 6.48 NM 91.69 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 NM <5.0 02/28/13 98.17 5.26 NM 92.91 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 NM <5.0 10/15/13 98.17 7.52 13.60 90.65 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 NM <5.0 01/08/14 98.17 6.32 13.60 91.85 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 NM <5.0 04/09/14 98.17 5.71 NM 92.46 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.0 NM <5.0 07/17/14 98.17 8.23 NM 89.94 NM NM NM NM NM NM NM NM NM NM 10/28/14 98.17 7.22 13.50 90.95 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <10.0 <5.00 NM <5.00 01/07/15 98.17 6.14 13.47 92.03 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 04/16/15 98.17 6.00 13.46 92.17 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 07/07/15 98.17 6.87 13.42 91.30 NM NM NM NM NM NM NM NM NM NM 10/22/15 98.17 7.78 13.38 90.39 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 01/20/16 98.17 6.36 13.33 91.81 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 04/14/16 98.17 6.05 13.34 92.12 <75.0 <25.0 29.6 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 07/25/16 98.17 7.69 13.32 90.48 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 10/17/16 98.17 7.90 13.30 90.27 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00

Page 1 of 8 Project #95-214211 Table 1 Cumberland Farms Station #2439 Summary of Groundwater Analytical Results 220 Pleasant Street Volatile Petroleum Hydrocarbons (VPH) and Target Volatile Organic Compounds (VOCs) Attleboro, Massachusetts (MADEP Method VPH-04-1.1)

Monitoring Date Well Depth to Depth to Water Table C5-C8 C9-C12 C9-C10 Ethyl- Total Methyl Tert Dissolved Well Sampled Elevation* Water Bottom Elevation Aliphatics Aliphatics Aromatics Benzene Toluene benzene Xylenes Butyl Ether Lead Naphthalene ID (feet) (feet) (feet) (feet) (μg/l) (μg/l) (μg/l) (μg/l) (μg/l) (μg/l) (μg/l) (μg/l) (μg/l) (μg/l) Method 1 GW-1 Standard 300 700 200 5 1,000 700 10,000 70 15 140 Method 1 GW-2 Standard 3,000 5,000 4,000 1,000 50,000 20,000 3,000 50,000 NA 700 Method 1 GW-3 Standard 50,000 50,000 50,000 10,000 40,000 5,000 5,000 50,000 10 20,000 MW-2 screen: 4-14' 03/28/07 98.03 5.50 13.00 92.53 <100 2,500 5,400 160 <25 490 1,551 1,200 NM 400 (Duplicate) 06/18/07 97.98 5.84 13.29 92.14 <100 560 1,300 76 <25 110 170 840 NM 260 06/18/07 97.98 5.84 13.29 92.14 <100 480 1,100 81 <25 100 160 890 NM 260 (Duplicate) 08/01/07 97.98 6.54 13.29 91.44 <100 2,300 3,900 120 <50 300 340 790 NM 500 08/01/07 97.98 6.54 13.29 91.44 <100 2,200 3,500 110 <25 260 280 700 NM 460 7/21/2009 97.98 6.01 13.90 91.97 NM NM NM NM NM NM NM NM NM NM 10/16/2009 97.98 6.56 13.42 91.42 NM NM NM NM NM NM NM NM NM NM 03/19/10 97.98 4.80 NM 93.18 136 1,200 1,550 45 <2 66 9.5 48.4 NM 268 06/08/10 97.98 6.28 13.45 91.70 76 1,300 2,600 81 <5 120 17 110 NM 490 (Duplicate) 09/15/10 97.98 7.13 13.45 90.85 100 570 980 43 <5 19 <10 22 NM 160 09/15/10 97.98 7.13 13.45 90.85 110 640 1,000 42 <5 20 <10 22 NM 150 12/02/10 97.98 6.19 13.45 91.79 130 1,100 1,900 58 <2 58 <20 43 NM 240 (Duplicate) 03/31/11 97.98 5.77 13.45 92.21 94 1,100 2,000 49 <1054<2053NM 220 03/31/11 97.98 5.77 13.45 92.21 95 1,100 2,000 49 <1054<2054NM 220 (Duplicate) 06/23/11 97.98 6.11 13.45 91.87 <100 1,100 2,200 50 <2561<5044NM 270 06/23/11 97.98 6.11 13.45 91.87 <100 880 2,300 44 <2554<5038NM 290 12/20/11 97.98 5.63 NM 92.35 179 1,840 920 56.3 <5 48.5 <10 20 NM 285 04/25/12 97.98 6.04 NM 91.94 197 1,230 865 48.8 <5.0 21.1 <10.0 11 NM 101 10/30/12 97.98 6.25 NM 91.73 183 375 1,100 44.7 <5.0 <5.0 <15.0 8.2 NM 127 02/28/13 97.98 5.02 NM 92.96 109 248 1,210 30.4 <5.0 11.3 <15.0 10.7 <7.5 50 10/15/13 97.98 7.14 13.65 90.84 104 754 1,060 43.8 <5.0 <5.0 <15.0 6.60 NM 169 01/09/14 97.98 5.83 NM 92.15 <150 855 1,030 22.9 <10 16.9 <30 <10 NM 95.8 04/10/14 97.98 5.32 13.67 92.66 116 931 1,250 29.4 <5.00 24.4 <15.0 <5.00 NM 94.4 07/17/14 97.98 7.59 NM 90.39 80.2 727 932 22.6 <5.00 18.1 <15.0 <5.00 NM 48.2 10/28/14 97.98 6.80 NM 91.18 94.3 353 469 23.0 <5.00 <5.00 <10.0 <5.00 NM 21.3 12/5/2014** 97.98 5.87 13.51 92.11 NM NM NM 24.3 <10.0 15.9 <30.0 <10.0 NM 123 01/07/15 97.98 5.71 13.60 92.27 <75.0 426 587 22.6 <5.00 16.2 <15.0 <5.00 NM 75.6 04/16/15 97.98 5.45 13.65 92.53 <75.0 340 530 20.7 <5.00 14.1 <15.0 <5.00 NM 72.8 07/07/15 97.98 6.29 13.67 91.69 76.4 809 1,510 42.3 <5.00 40.4 <15.0 <5.00 NM 267 10/22/15 97.98 7.34 NM 90.64 <75.0 250 384 20.6 <5.00 9.8 <15.0 <5.00 NM 19.2 01/20/16 97.98 5.97 13.62 92.01 94.2 536 612 16.4 <5.00 13.4 <15.0 <5.00 NM 79.1 04/14/16 97.98 3.78 13.66 94.20 <75.0 526 1,470 21.8 <5.00 27.2 <15.0 <5.00 NM 233 07/25/16 97.98 7.26 13.52 90.72 88.7 670 872 11.3 <5.00 15.4 <15.0 <5.00 NM 37.1 10/17/16 97.98 8.06 13.61 89.92 <75.0 228 688 6.74 <5.00 <5.00 <15.0 <5.00 NM 31.2

Page 2 of 8 Project #95-214211 Table 1 Cumberland Farms Station #2439 Summary of Groundwater Analytical Results 220 Pleasant Street Volatile Petroleum Hydrocarbons (VPH) and Target Volatile Organic Compounds (VOCs) Attleboro, Massachusetts (MADEP Method VPH-04-1.1)

Monitoring Date Well Depth to Depth to Water Table C5-C8 C9-C12 C9-C10 Ethyl- Total Methyl Tert Dissolved Well Sampled Elevation* Water Bottom Elevation Aliphatics Aliphatics Aromatics Benzene Toluene benzene Xylenes Butyl Ether Lead Naphthalene ID (feet) (feet) (feet) (feet) (μg/l) (μg/l) (μg/l) (μg/l) (μg/l) (μg/l) (μg/l) (μg/l) (μg/l) (μg/l) Method 1 GW-1 Standard 300 700 200 5 1,000 700 10,000 70 15 140 Method 1 GW-2 Standard 3,000 5,000 4,000 1,000 50,000 20,000 3,000 50,000 NA 700 Method 1 GW-3 Standard 50,000 50,000 50,000 10,000 40,000 5,000 5,000 50,000 10 20,000 MW-3 screen: 4-14' 03/28/07 93.30 6.01 11.90 92.32 83 380 200 <1 <5 <5 <10 28 NM <5 06/18/07 98.30 6.32 12.93 91.98 <20 <20 31 <1 <5 <5 <10 12 NM <5 08/01/07 98.30 6.92 12.93 91.38 <20 <20 <20 <1 <5 <5 <10 21 NM <5 7/21/2009 98.30 NM NM NM NM NM NM NM NM NM NM NM NM NM 10/16/2009 98.30 6.93 12.91 91.37 NM NM NM NM NM NM NM NM NM NM 03/19/10 98.30 5.35 NM 92.95 <50 <50 <50 <2 <2 <2 <4 <1 NM <3 06/08/10 98.30 6.72 13.05 91.58 40 <20 31 2 <5 <5 <10 <5 NM <5 09/15/10 98.30 7.48 13.05 90.82 83 <20 28 2 <5 <5 <10 <5 NM <5 12/02/10 98.30 6.61 NM 91.69 76 <20 25 1 <5 <5 <10 <5 NM <5 03/31/11 98.30 6.25 13.05 92.05 <20 <20 <20 <1 <5 <5 <10 <5 NM <5 06/23/11 98.30 6.54 13.05 91.76 42 <20 <20 <1 <5 <5 <10 <5 NM <5 12/20/11 98.30 6.12 NM 92.18 <75 <25 <25 <5 <5 <5 <10 <5 NM <5 04/25/12 98.30 6.37 NM 91.93 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <10.0 <5.0 NM <5.0 10/30/12 98.30 6.73 NM 91.57 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 NM <5.0 02/28/13 98.30 5.40 NM 92.90 100 <25.0 32.7 <5.0 <5.0 <5.0 <15.0 <5.0 NM <5.0 10/15/13 98.30 7.51 13.25 90.79 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 NM <5.0 01/08/14 98.30 6.32 13.15 91.98 83.2 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 NM <5.0 04/09/14 98.30 5.73 NM 92.57 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 NM <5.0 07/17/14 98.30 8.15 NM 90.15 NM NM NM NM NM NM NM NM NM NM 10/28/14 98.30 7.16 NM 91.14 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <10.0 <5.00 NM <5.00 01/07/15 98.30 6.13 13.09 92.17 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 04/16/15 98.30 5.95 13.40 92.35 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 07/07/15 98.30 6.84 13.24 91.46 NM NM NM NM NM NM NM NM NM NM 10/22/15 98.30 7.70 13.15 90.60 NM NM NM NM NM NM NM NM NM NM 01/20/16 98.30 6.43 13.13 91.87 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 04/14/16 98.30 NM NM NM NM NM NM NM NM NM NM NM NM NM 07/25/16 98.30 NM NM NM NM NM NM NM NM NM NM NM NM NM 10/17/16 98.30 7.80 13.21 90.50 NM NM NM NM NM NM NM NM NM NM

Page 3 of 8 Project #95-214211 Table 1 Cumberland Farms Station #2439 Summary of Groundwater Analytical Results 220 Pleasant Street Volatile Petroleum Hydrocarbons (VPH) and Target Volatile Organic Compounds (VOCs) Attleboro, Massachusetts (MADEP Method VPH-04-1.1)

Monitoring Date Well Depth to Depth to Water Table C5-C8 C9-C12 C9-C10 Ethyl- Total Methyl Tert Dissolved Well Sampled Elevation* Water Bottom Elevation Aliphatics Aliphatics Aromatics Benzene Toluene benzene Xylenes Butyl Ether Lead Naphthalene ID (feet) (feet) (feet) (feet) (μg/l) (μg/l) (μg/l) (μg/l) (μg/l) (μg/l) (μg/l) (μg/l) (μg/l) (μg/l) Method 1 GW-1 Standard 300 700 200 5 1,000 700 10,000 70 15 140 Method 1 GW-2 Standard 3,000 5,000 4,000 1,000 50,000 20,000 3,000 50,000 NA 700 Method 1 GW-3 Standard 50,000 50,000 50,000 10,000 40,000 5,000 5,000 50,000 10 20,000 MW-4 screen: 3-13' 06/18/07 97.65 5.72 12.56 91.98 <20 <20 <20 <1 <5 <5 <10 <5 NM <5 08/01/07 97.65 6.19 12.56 91.46 21 <20 <20 1 <5 <5 <10 <5 NM <5 7/21/2009 97.65 5.74 12.90 91.91 NM NM NM NM NM NM NM NM <0.001 NM 10/16/2009 97.65 6.20 12.54 91.45 NM NM NM NM NM NM NM NM NM NM 03/19/10 97.65 4.58 NM 93.07 <50 <50 <50 <2 <2 <2 <4 <1 NM <3 06/08/10 97.65 6.01 12.50 91.64 <20 <20 <20 <1 <5 <5 <10 <5 NM <5 09/15/10 97.65 6.79 12.50 90.86 <20 <20 <20 <1 <5 <5 <10 <5 NM <5 12/02/10 97.65 5.81 12.42 91.84 <20 <20 <20 <1 <5 <5 <10 <5 NM <5 03/31/11 97.65 5.55 12.50 92.10 <20 <20 <20 <1 <5 <5 <10 <5 NM <5 06/23/11 97.65 5.72 12.50 91.93 <20 <20 <20 <1 <5 <5 <10 <5 NM <5 12/20/11 97.65 5.40 NM 92.25 <75 <25 <25 <5 <5 <5 <10 <5 NM <5 04/25/12 97.65 5.58 NM 92.07 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <10.0 <5.0 NM <5.0 10/30/12 97.65 5.66 NM 91.99 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 NM <5.0 02/28/13 97.65 10.20 NM 87.45 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 NM <5.0 10/15/13 97.65 6.81 12.60 90.84 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 NM <5.0 01/08/14 97.65 5.57 NM 92.08 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 NM <5.0 04/09/14 97.65 4.95 NM 92.70 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 NM <5.0 07/17/14 97.65 6.11 NM 91.54 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 NM <5.0 10/28/14 97.65 6.47 12.63 91.18 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <10.0 <5.00 NM <5.00 01/07/15 97.65 5.47 12.38 92.18 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 04/16/15 97.65 5.25 12.70 92.40 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 07/07/15 97.65 6.14 12.46 91.51 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 10/22/15 97.65 7.04 12.65 90.61 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 01/20/16 97.65 5.70 12.61 91.95 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 04/14/16 97.65 5.33 12.58 92.32 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 07/25/16 97.65 6.98 12.61 90.67 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 10/17/16 97.65 7.15 13.60 90.50 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00

MW-5 screen: 3-14' 06/18/07 98.55 6.60 13.64 91.95 150 34 38 14 <5 <5 <10 35 NM <5 08/01/07 98.55 7.14 13.64 91.41 140 35 24 5 <5 <5 <10 <5 NM <5 7/21/2009 98.55 NM NM NM NM NM NM NM NM NM NM NM NM NM 10/16/2009 98.55 7.16 13.55 91.39 NM NM NM NM NM NM NM NM NM NM 03/19/10 98.55 5.55 NM 93.00 <50 <50 <50 <2 <2 <2 <4 1.2 NM <3 06/08/10 98.55 6.95 13.55 91.60 <20 <20 <20 2 <5 <5 <10 <5 NM <5 09/15/10 98.55 7.74 13.55 90.81 <20 <20 <20 2 <5 <5 <10 <5 NM <5 12/02/10 98.55 6.84 13.58 91.71 <20 <20 <20 1 <5 <5 <10 <5 NM <5 03/31/11 98.55 6.49 13.55 92.06 <20 <20 <20 1 <5 <5 <10 <5 NM <5 06/23/11 98.55 6.73 13.55 91.82 23 <20 <20 <1 <5 <5 <10 <5 NM <5

Page 4 of 8 Project #95-214211 Table 1 Cumberland Farms Station #2439 Summary of Groundwater Analytical Results 220 Pleasant Street Volatile Petroleum Hydrocarbons (VPH) and Target Volatile Organic Compounds (VOCs) Attleboro, Massachusetts (MADEP Method VPH-04-1.1)

MW-6 screen: 3-14' 06/18/07 98.36 6.43 13.57 91.93 <100 <100 <100 10 <25 <25 <50 36 NM <25 08/01/07 98.36 6.96 13.57 91.40 27 <20 <20 5 <5 <5 <10 19 NM <5 7/21/2009 98.36 NM NM NM NM NM NM NM NM NM NM NM NM NM 10/16/2009 98.36 6.92 13.56 91.44 NM NM NM NM NM NM NM NM NM NM 03/19/10 98.36 5.32 NM 93.04 <50 <50 <50 <2 <2 <2 <4 1.1 NM <3 06/08/10 98.36 6.76 13.31 91.60 <20 <20 <20 1 <5 <5 <10 5 NM <5 09/15/10 98.36 7.53 13.31 90.83 <20 <20 <20 <1 <5 <5 <10 <5 NM <5 12/02/10 98.36 6.57 13.19 91.79 <20 <20 <20 <1 <5 <5 <10 <5 NM <5 03/31/11 98.36 6.31 13.30 92.05 <20 <20 <20 <1 <5 <5 <10 <5 NM <5 06/23/11 98.36 6.48 13.30 91.88 <20 <20 <20 <1 <1 <5 <10 <5 NM <5 12/20/11 98.36 6.16 NM 92.20 <75 <25 <25 <5 <5 <5 <10 <5 NM <5 04/25/12 98.36 6.31 NM 92.05 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <10.0 <5.0 NM <5.0 10/30/12 98.36 6.46 NM 91.90 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 NM <5.0 02/28/13 98.36 5.26 NM 93.10 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 <7.5 <5.0 10/15/13 98.36 7.55 13.30 90.81 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 NM <5.0 01/09/14 98.36 6.33 13.04 92.03 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 NM <5.0 04/10/14 98.36 5.81 13.49 92.55 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 NM <5.0 07/17/14 98.36 13.36 13.41 85.00 Dry 10/28/14 98.36 7.17 NM 91.19 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <10.0 <5.00 NM <5.00 01/07/15 98.36 6.21 13.25 92.15 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 04/16/15 98.36 6.00 13.47 92.36 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 07/07/15 98.36 6.87 13.34 91.49 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00

Page 5 of 8 Project #95-214211 Table 1 Cumberland Farms Station #2439 Summary of Groundwater Analytical Results 220 Pleasant Street Volatile Petroleum Hydrocarbons (VPH) and Target Volatile Organic Compounds (VOCs) Attleboro, Massachusetts (MADEP Method VPH-04-1.1)

MW-7 screen: 4-14' 02/28/13 99.72 6.92 NM 92.80 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 <7.5 <5.0 10/15/13 99.72 9.10 13.51 90.62 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 NM <5.0 01/08/14 99.72 7.91 13.50 91.81 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 NM <5.0 04/10/14 99.72 7.38 13.71 92.34 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 NM <5.0 07/17/14 99.72 8.46 NM 91.26 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 NM <5.0 10/28/14 99.72 8.77 NM 90.95 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <10.0 <5.00 NM <5.00 01/07/15 99.72 7.71 13.52 92.01 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 04/16/15 99.72 7.52 13.54 92.20 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 07/07/15 99.72 8.43 13.67 91.29 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 10/22/15 99.72 9.29 13.55 90.43 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 01/20/16 99.72 8.00 13.61 91.72 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 04/14/16 99.72 7.60 13.41 92.12 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 07/25/16 99.72 9.20 13.66 90.52 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 10/17/16 99.72 9.41 13.64 90.31 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00

MW-8S screen: 4-14' 02/28/13 99.40 6.53 NM 92.87 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 <7.5 <5.0 10/15/13 99.40 8.78 13.70 90.62 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 NM <5.0 01/08/14 99.40 7.58 NM 91.82 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 NM <5.0 04/10/14 99.40 6.99 13.67 92.41 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 NM <5.0 07/17/14 99.40 8.22 NM 91.18 <75.0 <25.0 <25.0 <5.0 <5.0 <5.0 <15.0 <5.0 NM <5.0 10/25/15 99.40 8.48 13.73 90.92 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <10.0 <5.00 NM <5.00 01/07/15 99.40 7.39 13.51 92.01 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 04/16/15 99.40 7.13 13.61 92.27 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 <7.5 <5.00 07/07/15 99.40 8.11 13.50 91.29 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 10/22/15 99.40 8.96 13.59 90.44 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 01/20/16 99.40 7.84 13.59 91.56 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 04/14/16 99.40 7.22 13.56 92.18 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 07/25/16 99.40 8.91 13.75 90.49 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 10/17/16 99.40 9.16 13.60 90.24 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00

Page 6 of 8 Project #95-214211 Table 1 Cumberland Farms Station #2439 Summary of Groundwater Analytical Results 220 Pleasant Street Volatile Petroleum Hydrocarbons (VPH) and Target Volatile Organic Compounds (VOCs) Attleboro, Massachusetts (MADEP Method VPH-04-1.1)

MW-9 04/16/15 NA 4.71 13.78 NA <75.0 <25.0 <25.0 7.68 <5.00 <5.00 <15.0 <5.00 <7.5 <5.00 05/08/15 NA 4.17 13.89 NA <75.0 <25.0 <25.0 6.40 <5.00 <5.00 <15.0 <5.00 NM <5.00 07/07/15 NA 4.69 13.94 NA <75.0 <25.0 <25.0 7.08 <5.00 <5.00 <15.0 <5.00 NM <5.00 10/22/15 96.22 5.58 13.8 90.64 <75.0 <25.0 <25.0 7.08 <5.00 <5.00 <15.0 <5.00 NM <5.00 01/20/16 96.22 5.82 13.78 90.40 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 04/14/16 96.22 3.75 13.71 92.47 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 07/25/16 96.22 5.46 13.72 90.76 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00 10/17/16 96.22 5.70 13.70 90.52 <75.0 <25.0 <25.0 <5.00 <5.00 <5.00 <15.0 <5.00 NM <5.00

Page 7 of 8 Project #05-214211 Table 2 Cumberland Farms, Inc. Groundwater Monitoring Data Station #2439 Metals 220 Pleasant Street Attleboro, MA

Total Lead Dissolved Total Zinc Dissolved Zinc Silver Arsenic Barium Cadmium Chromium Selenium Mercury Well ID Sample Date (mg/L) Lead (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) RCGW-1 NA 0.01 NA 0.9 0.007 0.0 2.0 0.004 0.1 0.05 0.002 RCGW-2 NA 0.01 NA 0.9 0.007 0.9 50 0.004 0.3 0.1 0.02 GW-1 NA 0.015 NA 5 0.1 0.01 2 0.005 0.1 0.05 0.002 GW-2 NA NA NA NA NA NA NA NA NA NA NA GW-3 NA 0.01 NA 0.90 6 0.9 50 0.004 0.3 0.1 0.02 MW-8S 4/16/15 NA <0.0075 NA NA NA <0.0040 NA NA NA NA NA

MW-9 4/16/15 NA <0.0075 NA NA NA <0.0040 NA NA NA NA NA

Notes: Bold = Exceeds Method 1 GW-1 standard QA/QC INFO: Italicized = Exceeds Method 1 GW-2 standard LAST UPDATED Underlined = Exceeds Method 1 GW-3 standard BY: AR RCGW-2 - Reporting category applied to all groundwater samples that are not obtained from category RCGW-1 areas DATE: 2/1/16 NS = Not Sampled LAST CHECKED NA = Not analyzed BY: MY ug/L = micrograms per liter DATE: 2/10/16 mg/L = milligrams per liter All standards updated with new 2014 concentrations

Page 1 of 1 TABLE 1 Concentrations of Volatile Organic Compounds Detected in Groundwater CFI Station #2439 - 220 Pleasant Street, Attleboro, MA (USEPA Method 8260B, Results Reported in micrograms per liter [ug/L]) Results/Reportable Detection Limits (RDLs)

Depth to Water Table Well ID TOC Elevation Water Elevation Sample Date cis-1,2-Dichloroethene 1,1-Dichloroethane Trichloroethene Tetrachloroethylene Vinyl Chloride MW-1 98.17 6.33 91.84 07/21/09 23.6 ND/2 11.5 8.88 3.02 (GW-2) 98.17 6.76 91.41 10/16/09 25.8 ND/5 14.2 11.1 3.71 98.17 5.15 93.02 03/19/10 3.6 ND/1 ND/1 2.1 ND/1 98.17 7.10 91.07 10/06/10 27 ND/0.5 12 10 3 MW-2 97.98 6.01 91.97 07/21/09 ND/2 ND/2 ND/2 ND/2 ND.0.14 97.98 6.56 91.42 10/16/09 ND/5 ND/5 ND/5 ND/5 ND/2 97.98 4.80 93.18 03/19/10 ND/1 ND/1 ND/1 ND/1 ND/1 97.98 6.71 91.27 10/06/10 ND/3 ND/3 ND/3 ND/3 ND/2 MW-3 98.30 NM NM 07/21/09 NS NS NS NS NS 98.30 6.93 91.37 10/16/09 12.2 ND/5 ND/5 ND/5 7.17 98.30 5.35 92.95 03/19/10 5.3 ND/1 ND/1 ND/1 1.8 98.30 7.31 90.99 10/06/10 5 0.6 ND/0.5 ND/0.5 5 MW-4 97.65 5.74 91.91 07/21/09 10 ND/2 20 44.7 ND.0.14 (GW-2) 97.65 6.20 91.45 10/16/09 10.1 ND/5 17.6 33 ND/2 97.65 4.58 93.07 03/19/10 ND/1 ND/1 4.6 16.9 ND/1 97.65 6.27 91.38 10/06/10 9 ND/0.5 14 30 ND/0.5 MW-5 98.55 NM NM 07/21/09 NS NS NS NS NS 98.55 7.16 91.39 10/16/09 ND/5 ND/5 ND/5 ND/5 3.5 98.55 5.55 93.00 03/19/10 ND/1 ND/1 ND/1 ND/1 ND/1 98.55 7.45 91.10 10/06/10 ND/0.5 0.6 ND/0.5 ND/0.5 1 MW-6 98.36 NM NM 07/21/09 NS NS NS NS NS 98.36 6.92 91.44 10/16/09 ND/5 ND/5 ND/5 ND/5 7.64 98.36 5.32 93.04 03/19/10 ND/1 ND/1 ND/1 ND/1 1.3 98.36 7.05 91.31 10/06/10 1 ND/0.5 ND/0.5 ND/0.5 4 ECS-1 NS 8.09 NS 10/06/10 ND/0.5 ND/0.5 ND/0.5 ND/0.5 ND/0.5 GW-1 70 70 5 5 2 MCP Method 1 Cleanup Standards GW-2 100 1,000 30 50 2 GW-3 50,000 20,000 5,000 30,000 50,000 Notes: TOC=Top of Casing, NS=Not Surveyed, ND=Not Detected, NM=Not Measured Shaded=concentration exceeds GW-1 standard, Shaded/Bold=concentration exceeds GW-2 standard Table 2 Summary of Metals in Groundwater Cumberland Farms Station #2439 220 Pleasant Street, Attleboro, MA

Silver Arsenic Barium Cadmium Chromium Selenium Mercury Total Lead Dissolved Total Zinc Dissolved (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) Well ID Sample Date (mg/L) Lead (mg/L) (mg/L) Zinc (mg/L) RCGW-1 NA 0.01 NA 0.9 0.007 0.0 2.0 0.004 0.1 0.05 0.002 RCGW-2 NA 0.01 NA 0.9 0.007 0.9 50 0.004 0.3 0.1 0.02 GW-1 NA 0.015 NA 5 0.1 0.01 2 0.005 0.1 0.05 0.002 Method 1 Standards GW-2 NA NA NA NA NA NA NA NA NA NA NA GW-3 NA 0.01 NA 0.90 6 0.9 50 0.004 0.3 0.1 0.02 MW 9/6/06 0.10 NA 1.0 NA NA NA NA NA NA NA NA (destroyed) 9/12/06 NA 0.0070 NA NA NA NA NA NA NA NA NA

7/21/09 NA 0.00167 NA <0.900 NA NA NA NA NA NA NA (GW-2) 10/16/09 NA NA NA NA NA NA NA NA NA NA NA MW-1 3/19/10 NA NA NA NA NA NA NA NA NA NA NA 10/28/14 NA NA NA NA NA NA NA NA NA NA NA

7/21/09 NA 0.00170 NA <0.900 NA NA NA NA NA NA NA 10/16/09 NA NA NA NA NA NA NA NA NA NA NA MW-2 3/19/10 NA NA NA NA NA NA NA NA NA NA NA 2/28/13 NA <0.0075 NA NA NA NA NA NA NA NA NA 10/28/14 NA NA NA NA NA NA NA NA NA NA NA 12/5/14 0.01340 NA NA NA <0.0050 <0.0080 1.5 <0.0125 <0.0050 <0.0155 <0.00020

7/21/09 NS NS NS NS NA NA NA NA NA NA NA 10/16/09 NA NA NA NA NA NA NA NA NA NA NA MW-3 3/19/10 NA NA NA NA NA NA NA NA NA NA NA 10/28/14 NA NA NA NA NA NA NA NA NA NA NA

7/21/09 NA <0.00100 NA <0.900 NA NA NA NA NA NA NA 10/16/09 NA NA NA NA NA NA NA NA NA NA NA MW-4 3/19/10 NA NA NA NA NA NA NA NA NA NA NA 10/28/14 NA NA NA NA NA NA NA NA NA NA NA

7/21/09 NS NS NS NS NA NA NA NA NA NA NA 10/16/09 NA NA NA NA NA NA NA NA NA NA NA MW-5 3/19/10 NA NA NA NA NA NA NA NA NA NA NA 10/28/14 NA NA NA NA NA NA NA NA NA NA NA

7/21/09 NS NS NS NS NA NA NA NA NA NA NA 10/16/09 NA NA NA NA NA NA NA NA NA NA NA MW-6 3/19/10 NA NA NA NA NA NA NA NA NA NA NA 2/28/13 NA <0.0075 NA NA NA NA NA NA NA NA NA 10/28/14 NA NA NA NA NA NA NA NA NA NA NA

MW-7 2/28/13 NA <0.0075 NA NA NA NA NA NA NA NA NA 10/28/14 NA NA NA NA NA NA NA NA NA NA NA

MW-8S 2/28/13 NA <0.0075 NA NA NA NA NA NA NA NA NA 10/28/14 NA NA NA NA NA NA NA NA NA NA NA 4/16/15 NA <0.0075 NA NA NA <0.0040 NA NA NA NA NA

MW-8D 10/28/14 NA NA NA NA NA NA NA NA NA NA NA 4/16/15 NA <0.0075 NA NA NA <0.0040 NA NA NA NA NA Notes: Bold = Exceeds Method 1 GW-1 standard QA/QC INFO: Italicized = Exceeds Method 1 GW-2 standard LAST UPDATED Underlined = Exceeds Method 1 GW-3 standard BY: AR RCGW-2 - Reporting category applied to all groundwater samples that are not obtained from category RCGW-1 areas DATE: 2/3/15 NS = Not Sampled LAST CHECKED NA = Not analyzed BY: MY ug/L = micrograms per liter DATE: 2/20/15 mg/L = milligrams per liter All standards updated with new 2014 concentrations

Page 1 of 1 Table 9 Concentrations of Extractable Petroleum Hydrocarbons (EPH) Detected in Groundwater Samples 226 Pleasant Street, Attleboro, Massachusetts Project Number: 05-214211.01

Sample Location ECS-1 ECS-2 ECS-3 Sampling Date 9/1/2015 9/1/2015 9/1/2015 Groundwater Standards (µg/L) Depth to Water (ft) 4.87 7.58 8.02 MassEPH (ug/l) RCGW-1 GW-1 GW-2 GW-3 C9-C10 Aliphatic <100 <100 <100 200 200 4,000 50,000 C19-C36 Aliphatic <100 <100 <100 14,000 14,000 NS 50,000 C11-C22 Aromatic <100 <100 <100 200 200 50,000 5,000 Naphthalene <1 <1 <1 140 140 700 20,000 2-Methylnaphthalene <1 <1 <1 10 10 2,000 20,000 Acenaphthylene <1 <1 <1 30 30 10,000 40 Acenaphthene <1 <1 <1 20 20 NS 10,000 Fluorene <1 <1 <1 NS 30 NS 40 Phenanthrene <1 <1 <1 40 40 NS 10,000 Anthracene <1 <1 <1 30 60 NS 30 Fluoranthene <1 <1 <1 90 90 NS 200 Pyrene <1 <1 <1 20 60 NS 20 Benzo(a)antharcene <1 <1 <1 1 1 NS 1,000 Chrysene <1 <1 <1 2 2 NS 70 Benzo(b)fluoranthene <1 <1 <1 1 1 NS 400 Benzo(k)fluoranthene <1 <1 <1 NS 1 NS 100 Benzo(a)pyrene <0.2 <0.2 <0.2 0.2 0.2 NS 500 Indeno (1,2,3-cd) pyrene <0.5 <0.5 <0.5 0.5 0.5 NS 100 Dibenzo (a,h) anthracene <0.5 <0.5 <0.5 0.5 0.5 NS 40 Benzo (g,h,i) perylene <1 <1 <1 20 50 NS20 Notes: QA/QC INFO: < = target analyte Not Detected above the noted detection limit. LAST UPDATED NS = No Standard. BY: MY Bold indicates target analyte exceeds the MCP Method 1 Groundwater Standards (effective June 20, 2014) DATE: 9/10/15 LAST CHECKED BY: JC DATE: 9/11/15

Page 1 of 1 Table 6 Concentrations of Volatile Organic Compounds (VOCs) Detected in Groundwater 226 Pleasant Street, Attleboro, Massachusetts Project Number: 05-214211.01

Sample Location ECS-1 ECS-2 ECS-3 ECS-4 ECS-5 ECS-6 MW-1 MW-4 MW-9 Sampling Date 9/8/2015 11/25/2015 9/8/2015 11/25/2015 9/8/2015 11/25/2015 11/25/2015 11/25/2015 11/25/2015 11/25/2015 11/25/2015 11/25/2015 Groundwater Standards (µg/L) Depth to Water (ft) 4.87 7.02 7.58 6.53 8.02 3.47 4.93 6.47 4.61 7.08 6.32 4.82 Volatile Organic Compounds (µg/L) RCGW-1 GW-1 GW-2 GW-3 1,1,2-Trichlorotrifluoroethane (Freon 113) <1 - <1 - <1 ------NSNSNSNS Acetone <10 - <10 - <10 ------6,300 6,300 50,000 50,000 Acrylonitrile <0.5 - <0.5 - <0.5 ------1,000 NS NS NS Benzene <1 - <1 - <1 ------551,000 10,000 Bromobenzene <1 - <1 - <1 ------1,000 NS NS NS Bromochloromethane <1 - <1 - <1 ------NSNSNSNS Bromodichloromethane <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 3 3 6 50,000 Bromoform <1 <1.0 <1 <1.0 <1 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 4 4 700 50,000 Bromomethane <2 <2.0 <2 <2.0 <2 <2.0 <2.0 <2.0 <2.0 <2.0 <2.0 <2.0 7 10 7 800 2-Butanone (MEK) <10 - <10 - <10 ------4,000 4,000 50,000 50,000 n-Butylbenzene <1 - <1 - <1 ------NSNSNSNS sec-Butylbenzene <1 - <1 - <1 ------NSNSNSNS tert-Butylbenzene <1 - <1 - <1 ------1,000 NS NS NS Carbon disulfide <2 - <2 - <2 ------1,000 NS NS NS Carbon tetrachloride <1 <1.0 <1 <1.0 <1 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 2 5 2 5,000 Chlorobenzene <1 <1.0 <1 <1.0 <1 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 100 100 200 1,000 Chloroethane <2 <2.0 <2 <2.0 <2 <2.0 <2.0 <2.0 <2.0 <2.0 <2.0 <2.0 1,000 NS NS NS Chloroform <1 <1.0 <1 <1.0 <1 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 50 70 50 20,000 Chloromethane <2 <2.0 <2 <2.0 <2 <2.0 <2.0 <2.0 <2.0 <2.0 <2.0 <2.0 1,000 NS NS NS 2-Chlorotoluene <1 - <1 - <1 ------1,000 NS NS NS 4-Chlorotoluene <1 - <1 - <1 ------NSNSNSNS 1,2-Dibromo-3-chloropropane <2 - <2 - <2 ------100NSNSNS Dibromochloromethane <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 3 2 20 50,000 1,2-Dibromoethane (EDB) <0.5 - <0.5 - <0.5 ------0.02 0.02 2 50,000 Dibromomethane <1 - <1 - <1 ------5,000 NS NS NS 1,2-Dichlorobenzene <1 <1.0 <1 <1.0 <1 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 600 600 8,000 2,000 1,3-Dichlorobenzene <1 <1.0 <1 <1.0 <1 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 100 100 6,000 50,000 1,4-Dichlorobenzene <1 <1.0 <1 <1.0 <1 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 5 5 60 8,000 Dichlorodifluoromethane (Freon12) <2 <2.0 <2 <2.0 <2 <2.0 <2.0 <2.0 <2.0 <2.0 <2.0 <2.0 10,000 NS NS NS 1,1-Dichloroethane <1 <1.0 <1 <1.0 <1 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 70 70 2,000 20,000 1,2-Dichloroethane <1 <1.0 <1 <1.0 <1 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 5 5 5 20,000 1,1-Dichloroethene <1 <1.0 <1 <1.0 <1 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 7 7 80 30,000 cis-1,2-Dichloroethene <1 <1.0 <1 <1.0 31.4 6.0 4.4 3.8 13.6 8.2 3.0 3.4 20 70 20 50,000 trans-1,2-Dichloroethene <1 <1.0 <1 <1.0 <1 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 80 100 80 50,000 1,2-Dichloropropane <1 <1.0 <1 <1.0 <1 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 3 5 3 50,000 1,3-Dichloropropane <1 - <1 - <1 ------5,000 NS NS NS 2,2-Dichloropropane <1 - <1 - <1 ------NSNSNSNS 1,1-Dichloropropene <1 - <1 - <1 ------NSNSNSNS cis-1,3-Dichloropropene <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 0.50.4 10 200 trans-1,3-Dichloropropene <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 Ethylbenzene <1 - <1 - <1 ------70070020,000 5,000 Hexachlorobutadiene <0.5 - <0.5 - <0.5 ------0.60.6503,000 2-Hexanone (MBK) <10 - <10 - <10 ------1,000 NS NS NS Isopropylbenzene <1 - <1 - <1 ------10,000 NS NS NS 4-Isopropyltoluene <1-<1-<1------NSNSNSNS

Page 1 of 2 Table 6 Concentrations of Volatile Organic Compounds (VOCs) Detected in Groundwater 226 Pleasant Street, Attleboro, Massachusetts Project Number: 05-214211.01

Sample Location ECS-1 ECS-2 ECS-3 ECS-4 ECS-5 ECS-6 MW-1 MW-4 MW-9 Sampling Date 9/8/2015 11/25/2015 9/8/2015 11/25/2015 9/8/2015 11/25/2015 11/25/2015 11/25/2015 11/25/2015 11/25/2015 11/25/2015 11/25/2015 Groundwater Standards (µg/L) Depth to Water (ft) 4.87 7.02 7.58 6.53 8.02 3.47 4.93 6.47 4.61 7.08 6.32 4.82 Volatile Organic Compounds (µg/L) RCGW-1 GW-1 GW-2 GW-3 Methyl tert-butyl ether <1 - <1 - <1 ------707050,000 50,000 4-Methyl-2-pentanone (MIBK) <10 - <10 - <10 ------35035050,000 50,000 Methylene chloride <2 <2.0 <2 <2.0 <2 <2.0 <2.0 <2.0 <2.0 <2.0 <2.0 <2.0 5 5 2,000 50,000 Naphthalene <1 - <1 - <1 ------14014070020,000 n-Propylbenzene <1 - <1 - <1 ------1,000 NS NS NS Styrene <1 - <1 - <1 ------1001001006,000 1,1,1,2-Tetrachloroethane <1 - <1 - <1 ------551050,000 1,1,2,2-Tetrachloroethane <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 2 2 9 50,000 Tetrachloroethene <1 <1.0 <1 <1.0 1.6 13.4 27.0 <1.0 2.3 1.1 15.2 <1.0 5 5 50 30,000 Toluene <1 - <1 - <1 ------1,000 1,000 50,000 40,000 1,2,3-Trichlorobenzene <1 - <1 - <1 ------NSNSNSNS 1,2,4-Trichlorobenzene <1 - <1 - <1 ------70NSNSNS 1,3,5-Trichlorobenzene <1 - <1 - <1 ------NSNSNSNS 1,1,1-Trichloroethane <1 <1.0 <1 <1.0 <1 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 200 200 4,000 20,000 1,1,2-Trichloroethane <1 <1.0 <1 <1.0 <1 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 5 5 900 50,000 Trichloroethene <1 <1.0 <1 <1.0 1.8 2.7 10.8 <1.0 4.1 3.2 6.4 <1.0 5 5 5 5,000 Trichlorofluoromethane (Freon 11) <1 <1.0 <1 <1.0 <1 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 10,000 NS NS NS 1,2,3-Trichloropropane <1 - <1 - <1 ------1,000 NS NS NS 1,2,4-Trimethylbenzene <1 - <1 - <1 ------10,000 NS NS NS 1,3,5-Trimethylbenzene <1 - <1 - <1 ------100NSNSNS Vinyl chloride <1 <1.0 <1 <1.0 11.5 <1.0 <1.0 <1.0 2.5 1.6 <1.0 2.1 2 2 2 50,000 m,p-Xylene <2 - <2 - <2 ------3,00010,000 3,000 5,000 o-Xylene <1 - <1 - <1 ------Tetrahydrofuran <2 - <2 - <2 ------5,000 NS NS NS Ethyl ether <1 - <1 - <1 ------1,000 NS NS NS Tert-amyl methyl ether <1 - <1 - <1 ------NSNSNSNS Ethyl tert-butyl ether <1 - <1 - <1 ------NSNSNSNS Di-isopropyl ether <1 - <1 - <1 ------1,000 NS NS NS Tert-Butanol / butyl alcohol <10 - <10 - <10 ------1,000 NS NS NS 1,4-Dioxane <20 - <20 - <20 ------0.30.36,000 50,000 trans-1,4-Dichloro-2-butene <5 - <5 - <5 ------100NSNSNS Ethanol <400 - <400 - <400 ------1,000 NS NS NS Notes: QA/QC INFO: < = target analyte Not Detected above the noted detection limit. LAST UPDATED NS = No Standard. BY: AR Bold indicates target analyte exceeds the MCP Method 1 Groundwater Standards (effective June 20, 2014) DATE: 12/4/15 - = target analyte not analyzed for. LAST CHECKED BY: JC DATE: 12/7/15

Page 2 of 2

Attachment C

Revised NOI Pages

07242017 Request for Infomation Reply Notice of Intent for Remediation General Permit Cumberland Farms Inc., 220-226 Pleasant Street, Attleboro, MA

Figure 1 – Site Locus

ATC Group Services LLC Environmental Compliance Services, Inc. 500 West Cummings Park Woburn, MA 01801 Phone 781-404-1340 Fax 781-932-6211 MA-2439-Attleboro-220 Pleasant Street 226 Pleasant St Attleboro, MA 02703 Figure 1: SITE LOCUS

Base Map: U.S. Geological Survey; Quadrangle Location: Attleboro, MA

Lat/Lon: 41 57' 5" NORTH, 71 16' 24" WEST - UTM Coordinates: 19 311581 EAST / 4646869 NORTH Generated By: Richard Walas Notice of Intent for Remediation General Permit Cumberland Farms Inc., 220-226 Pleasant Street, Attleboro, MA

Figure 2 – Site Plan

ATC Group Services LLC Approximate Property Line and Temporary Solution Boundary Approximate Location of Disposal Site Boundary Sanitary Sewer Line Storm Sewer Line Water Line Natural Gas Line Overhead Electric Line Petroleum Feed Line Manhole Catchbasin Fire Hydrant Electric Pole Monitoring Well

Well I.D. Influent Monitoring Sampling Location

General Notes: All locations, dimensions and property lines depicted on this plan are approximate. This plan should not be used for construction or land conveyance purposes.

0 Approximate Feet 30

NAME/ADDRESS:

Cumberland Farms, Inc. 220 Pleasant Street Attleboro, Massachusetts

DRAWING TITLE:

SITE PLAN

500 West Cummings Park, Suite 3750 Woburn, Massachusetts 01801 (781) 932-9400 (781) 932-6211 FAX DRAWN BY: DB/BB FIGURE NO. CHECKED BY: RS PROJECT NO. 95-214211 DATE: FEBRUARY 2017 2 Notice of Intent for Remediation General Permit Cumberland Farms Inc., 220-226 Pleasant Street, Attleboro, MA

Figure 3 – MassDEP BWSC Site Scoring Map

ATC Group Services LLC MassDEP Phase 1 Site Assessment Map Page 1 of 1

MassDEP - Bureau of Waste Site Cleanup Site Information: Phase 1 Site Assessment Map: 500 feet & 0.5 Mile Radii 220 PLEASANT STREET ATTLEBORO, MA The information shown is the best available at the NAD83 UTM Meters: date of printing. However, it may be incomplete. The 5153711mN , -7934113mE (Zone: 18) responsible party and LSP are ultimately responsible June 19, 2017 for ascertaining the true conditions surrounding the site. Metadata for data layers shown on this map can be found at: http://www.mass.gov/mgis/.

500 m 1000 ft

http://maps.massgis.state.ma.us/images/dep/mcp/mcp.htm 6/19/2017 Notice of Intent for Remediation General Permit Cumberland Farms Inc., 220-226 Pleasant Street, Attleboro, MA

Figure 4 – Proposed Dewatering System Schematic

Figure Caption

ATC Group Services LLC

Notice of Intent for Remediation General Permit Cumberland Farms Inc., 220-226 Pleasant Street, Attleboro, MA

Table 1 – Groundwater Data Summary

ATC Group Services LLC Table 1 - Groundwater Data Summary Cumberland Farms Inc 220-226 Pleasant Street, Attleboro, Massachusetts ATC Project No. 0521421103

EPA NPDES Appendix III - MA Client ID: Effluent Limits RGP-1 SW-1 Trip Blank Lab ID: SC35232-01 SC35232-02 SC35232-03 Matrix: Ground Water Surface Water Aqueous Sampled: 30-May-17 30-May-17 30-May-17

ASTM D 1293-99B (pH Units) pH 6.4

Calculation (mg/l) Trivalent Chromium 0.0488 < 0.0025

E350.1 (mg/L) Ammonia as Nitrogen 0.29 0.14

EPA 1664B (mg/l) Non-polar material (SGT-HEM) < 1.0

EPA 200.7 (mg/l) Iron 1 0.433 Calcium 77.3 2.8 Magnesium 6.5 0.188

EPA 200.8 (mg/l) Antimony 0.0056 < 0.00025 Lead 0.0013 < 0.00025 Selenium 0.005 < 0.00130 Zinc 0.0666 0.00644 Arsenic 0.01 < 0.00025 Cadmium 0.0002 0.00044 Chromium < 0.00125 Copper 0.0052 0.00384 Nickel 0.029 0.00308 Silver 0.0012 < 0.00025

Page 1 of 5 Table 1 - Groundwater Data Summary Cumberland Farms Inc 220-226 Pleasant Street, Attleboro, Massachusetts ATC Project No. 0521421103

EPA NPDES Appendix III - MA Client ID: Effluent Limits RGP-1 SW-1 Trip Blank Lab ID: SC35232-01 SC35232-02 SC35232-03 Matrix: Ground Water Surface Water Aqueous Sampled: 30-May-17 30-May-17 30-May-17

EPA 200/6000 methods (N/A) Preservation Field Preserved; pH<2 confirmedField Preserved; pH<2 confirmed

EPA 245.1/7470A (mg/l) Mercury 0.0009 < 0.00020

EPA 300.0 (mg/l) Chloride 673

EPA 335.4 / SW846 9012B (mg/l) Cyanide (total) 0.0052 < 0.00500

EPA 524.2 (µg/l) Tert-amyl methyl ether < 0.50 < 0.50

EPA 608 (µg/l) Aroclor-1016 < 0.204 Aroclor-1221 < 0.204 Aroclor-1232 < 0.204 Aroclor-1242 < 0.204 Aroclor-1248 < 0.204 Aroclor-1254 < 0.204 Aroclor-1260 < 0.204 Aroclor-1262 < 0.204 Aroclor-1268 < 0.204

Page 2 of 5 Table 1 - Groundwater Data Summary Cumberland Farms Inc 220-226 Pleasant Street, Attleboro, Massachusetts ATC Project No. 0521421103

EPA NPDES Appendix III - MA Client ID: Effluent Limits RGP-1 SW-1 Trip Blank Lab ID: SC35232-01 SC35232-02 SC35232-03 Matrix: Ground Water Surface Water Aqueous Sampled: 30-May-17 30-May-17 30-May-17

EPA 624 (µg/l) Acetone < 10.0 < 10.0 Benzene 5 < 1.0 < 1.0 Carbon tetrachloride 4.4 < 1.0 < 1.0 1,2-Dichlorobenzene 600 < 1.0 < 1.0 1,3-Dichlorobenzene 320 < 1.0 < 1.0 1,4-Dichlorobenzene 5 < 1.0 < 1.0 1,1-Dichloroethane 70 < 1.0 < 1.0 1,2-Dichloroethane 5 < 1.0 < 1.0 1,1-Dichloroethene 3.2 < 1.0 < 1.0 cis-1,2-Dichloroethene 70 < 1.0 < 1.0 Ethylbenzene 100 < 1.0 < 1.0 Methyl tert-butyl ether 70 < 1.0 < 1.0 Methylene chloride 4.6 < 10.0 < 10.0 Tetrachloroethene 5 < 1.0 < 1.0 Toluene 100 < 1.0 < 1.0 1,1,1-Trichloroethane 200 < 1.0 < 1.0 1,1,2-Trichloroethane 5 < 1.0 < 1.0 Trichloroethene 5 < 1.0 < 1.0 Vinyl chloride 2 < 1.0 < 1.0 m,p-Xylene < 2.0 < 2.0 o-Xylene < 1.0 < 1.0 1,4-Dioxane < 20.0 < 20.0

Page 3 of 5 Table 1 - Groundwater Data Summary Cumberland Farms Inc 220-226 Pleasant Street, Attleboro, Massachusetts ATC Project No. 0521421103

EPA NPDES Appendix III - MA Client ID: Effluent Limits RGP-1 SW-1 Trip Blank Lab ID: SC35232-01 SC35232-02 SC35232-03 Matrix: Ground Water Surface Water Aqueous Sampled: 30-May-17 30-May-17 30-May-17

EPA 625 (µg/l) Acenaphthene 100 < 5.05 Acenaphthylene 100 < 5.05 Benzo (a) anthracene 0.0038 < 5.05 Benzo (a) pyrene 0.0038 < 5.05 Benzo (b) fluoranthene 0.0038 < 5.05 Benzo (k) fluoranthene 0.0038 < 5.05 Bis(2-ethylhexyl)phthalate 6 < 5.05 Butyl benzyl phthalate < 5.05 Chrysene 0.0038 < 5.05 Dibenzo (a,h) anthracene 0.0038 < 5.05 Diethyl phthalate < 5.05 Dimethyl phthalate < 5.05 Di-n-butyl phthalate < 5.05 Di-n-octyl phthalate < 5.05 Fluoranthene 100 < 5.05 Fluorene 100 < 5.05 Indeno (1,2,3-cd) pyrene 0.0038 < 5.05 Naphthalene 20 < 5.05 Pentachlorophenol 1 < 5.05 Phenanthrene 100 < 5.05 Phenol < 5.05 Pyrene 100 < 5.05

Page 4 of 5 Table 1 - Groundwater Data Summary Cumberland Farms Inc 220-226 Pleasant Street, Attleboro, Massachusetts ATC Project No. 0521421103

EPA NPDES Appendix III - MA Client ID: Effluent Limits RGP-1 SW-1 Trip Blank Lab ID: SC35232-01 SC35232-02 SC35232-03 Matrix: Ground Water Surface Water Aqueous Sampled: 30-May-17 30-May-17 30-May-17

SM 2340B (11) (mg/l CaCO3) Hardness 220 7.76

SM 2520 (01) (ppt (1000)) Salinity 1.31

SM2540D (11) (mg/l) Total Suspended Solids 30 5.4

SM3500-Cr-B (11)/7196A (mg/l) Hexavalent Chromium < 0.005

SM4500-Cl-G (11) (mg/l) Total Residual Chlorine 0.011 < 0.020

SW846 8011 (µg/l) 1,2-Dibromoethane (EDB) 0.05 < 0.0100

SW846 8015 Mod (mg/l) Ethanol < 1.00 Tert-Butanol / butyl alcohol < 1.00

Comparison criteria values are provided as a convenience for client review. The user should verify that these values are the most current, and that concentrations and units are accurate. Please report any discrepancies to our Quality Assurance Department.

Page 5 of 5 Notice of Intent for Remediation General Permit Cumberland Farms Inc., 220-226 Pleasant Street, Attleboro, MA

Attachment A – Remediation General Permit Notice of Intent

ATC Group Services LLC MAG910000 Appendix IV – Part 1 – NOI NHG910000 Page 14 of 24

II. Suggested Format for the Remediation General Permit Notice of Intent (NOI)

A. General site information:

1. Name of site: Site address:

Street:

City: State: Zip:

2. Site owner Contact Person:

Telephone: Email: Mailing address:

Street: Owner is (check one): □ Federal □ State/Tribal □ Private City: State: Zip: □ Other; if so, specify:

3. Site operator, if different than owner Contact Person:

Telephone: Email:

Mailing address:

Street:

City: State: Zip: 4. NPDES permit number assigned by EPA: 5. Other regulatory program(s) that apply to the site (check all that apply):

□ MA Chapter 21e; list RTN(s): □ CERCLA

□ UIC Program NPDES permit is (check all that apply: □ RGP □ DGP □ CGP □ NH Groundwater Management Permit or □ POTW Pretreatment □ MSGP □ Individual NPDES permit □ Other; if so, specify: Groundwater Release Detection Permit: □ CWA Section 404

MAG910000 Appendix IV – Part 1 – NOI NHG910000 Page 15 of 24

B. Receiving water information: 1. Name of receiving water(s): Waterbody identification of receiving water(s): Classification of receiving water(s):

Receiving water is (check any that apply): □ Outstanding Resource Water □ Ocean Sanctuary □ territorial sea □ Wild and Scenic River

2. Has the operator attached a location map in accordance with the instructions in B, above? (check one): □ Yes □ No Are sensitive receptors present near the site? (check one): □ Yes □ No If yes, specify:

3. Indicate if the receiving water(s) is listed in the State’s Integrated List of Waters (i.e., CWA Section 303(d)). Include which designated uses are impaired, and any pollutants indicated. Also, indicate if a final TMDL is available for any of the indicated pollutants. For more information, contact the appropriate State as noted in Part 4.6 of the RGP. 4. Indicate the seven day-ten-year low flow (7Q10) of the receiving water determined in accordance with the instructions in Appendix V for sites located in Massachusetts and Appendix VI for sites located in New Hampshire. 5. Indicate the requested dilution factor for the calculation of water quality-based effluent limitations (WQBELs) determined in accordance with the instructions in Appendix V for sites in Massachusetts and Appendix VI for sites in New Hampshire. 6. Has the operator received confirmation from the appropriate State for the 7Q10and dilution factor indicated? (check one): □ Yes □ No If yes, indicate date confirmation received: 7. Has the operator attached a summary of receiving water sampling results as required in Part 4.2 of the RGP in accordance with the instruction in Appendix VIII? (check one): □ Yes □ No

C. Source water information: 1. Source water(s) is (check any that apply):

□ Contaminated groundwater □ Contaminated surface water □ The receiving water □ Potable water; if so, indicate municipality or origin: Has the operator attached a summary of influent Has the operator attached a summary of influent □ A surface water other sampling results as required in Part 4.2 of the RGP sampling results as required in Part 4.2 of the than the receiving water; if in accordance with the instruction in Appendix RGP in accordance with the instruction in so, indicate waterbody: □ Other; if so, specify: VIII? (check one): Appendix VIII? (check one): □ Yes □ No □ Yes □ No MAG910000 Appendix IV – Part 1 – NOI NHG910000 Page 16 of 24

2. Source water contaminants: a. For source waters that are contaminated groundwater or contaminated b. For a source water that is a surface water other than the receiving water, potable water surface water, indicate are any contaminants present that are not included in or other, indicate any contaminants present at the maximum concentration in accordance the RGP? (check one): □ Yes □ No If yes, indicate the contaminant(s) and with the instructions in Appendix VIII? (check one): □ Yes □ No the maximum concentration present in accordance with the instructions in Appendix VIII. 3. Has the source water been previously chlorinated or otherwise contains residual chlorine? (check one): □ Yes □ No

D. Discharge information 1.The discharge(s) is a(n) (check any that apply): □ Existing discharge □ New discharge □ New source Outfall(s): Outfall location(s): (Latitude, Longitude)

Discharges enter the receiving water(s) via (check any that apply): □ Direct discharge to the receiving water □ Indirect discharge, if so, specify:

□ A private storm sewer system □ A municipal storm sewer system If the discharge enters the receiving water via a private or municipal storm sewer system: Has notification been provided to the owner of this system? (check one): □ Yes □ No Has the operator has received permission from the owner to use such system for discharges? (check one): □ Yes □ No, if so, explain, with an estimated timeframe for obtaining permission: Has the operator attached a summary of any additional requirements the owner of this system has specified? (check one): □ Yes □ No

Provide the expected start and end dates of discharge(s) (month/year):

Indicate if the discharge is expected to occur over a duration of: □ less than 12 months □ 12 months or more □ is an emergency discharge Has the operator attached a site plan in accordance with the instructions in D, above? (check one): □ Yes □ No

MAG910000 Appendix IV – Part 1 – NOI NHG910000 Page 17 of 24

2. Activity Category: (check all that apply) 3. Contamination Type Category: (check all that apply)

a. If Activity Category I or II: (check all that apply)

□ A. Inorganics □ B. Non-Halogenated Volatile Organic Compounds □ C. Halogenated Volatile Organic Compounds □ D. Non-Halogenated Semi-Volatile Organic Compounds □ E. Halogenated Semi-Volatile Organic Compounds □ F. Fuels Parameters

□ I – Petroleum-Related Site Remediation □ II – Non-Petroleum-Related Site Remediation b. If Activity Category III, IV, V, VI, VII or VIII: (check either G or H) □ III – Contaminated Site Dewatering □ G. Sites with Known □ H. Sites with Unknown Contamination □ IV – Dewatering of Pipelines and Tanks Contamination □ V – Aquifer Pump Testing c. If Category III-G, IV-G, V-G, VI-G, □ VI – Well Development/Rehabilitation VII-G or VIII-G: (check all that apply) □ VII – Collection Structure Dewatering/Remediation □ VIII – Dredge-Related Dewatering □ A. Inorganics □ B. Non-Halogenated Volatile Organic Compounds d. If Category III-H, IV-H, V-H, VI-H, VII-H or □ C. Halogenated Volatile Organic VIII-H Contamination Type Categories A through Compounds F apply □ D. Non-Halogenated Semi-Volatile Organic Compounds □ E. Halogenated Semi-Volatile Organic Compounds □ F. Fuels Parameters

MAG910000 Appendix IV – Part 1 – NOI NHG910000 Page 18 of 24

4. Influent and Effluent Characteristics Known Known Influent Effluent Limitations Test Detection or or # of Parameter method limit Daily Daily believed believed samples (#) (µg/l) maximum average TBEL WQBEL absent present (µg/l) (µg/l)

A. Inorganics Ammonia Report mg/L --- Chloride Report µg/l --- Total Residual Chlorine 0.2 mg/L Total Suspended Solids 30 mg/L Antimony 206 µg/L Arsenic 104 µg/L Cadmium 10.2 µg/L Chromium III 323 µg/L Chromium VI 323 µg/L Copper 242 µg/L Iron 5,000 µg/L Lead 160 µg/L Mercury 0.739 µg/L Nickel 1,450 µg/L Selenium 235.8 µg/L Silver 35.1 µg/L Zinc 420 µg/L Cyanide 178 mg/L

B. Non-Halogenated VOCs Total BTEX 100 µg/L --- Benzene 5.0 µg/L --- 1,4 Dioxane 200 µg/L --- Acetone 7.97 mg/L --- Phenol 1,080 µg/L MAG910000 Appendix IV – Part 1 – NOI NHG910000 Page 19 of 24

Known Known Influent Effluent Limitations Test Detection or or # of Parameter method limit Daily Daily believed believed samples (#) (µg/l) maximum average TBEL WQBEL absent present (µg/l) (µg/l)

C. Halogenated VOCs Carbon Tetrachloride 4.4 µg/L 1,2 Dichlorobenzene 600 µg/L --- 1,3 Dichlorobenzene 320 µg/L --- 1,4 Dichlorobenzene 5.0 µg/L --- Total dichlorobenzene 763 µg/L in NH --- 1,1 Dichloroethane 70 µg/L --- 1,2 Dichloroethane 5.0 µg/L --- 1,1 Dichloroethylene 3.2 µg/L --- Ethylene Dibromide 0.05 µg/L --- Methylene Chloride 4.6 µg/L --- 1,1,1 Trichloroethane 200 µg/L --- 1,1,2 Trichloroethane 5.0 µg/L --- Trichloroethylene 5.0 µg/L --- Tetrachloroethylene 5.0 µg/L cis-1,2 Dichloroethylene 70 µg/L --- Vinyl Chloride 2.0 µg/L ---

D. Non-Halogenated SVOCs Total Phthalates 190 µg/L Diethylhexyl phthalate 101 µg/L Total Group I PAHs 1.0 µg/L --- Benzo(a)anthracene Benzo(a)pyrene Benzo(b)fluoranthene Benzo(k)fluoranthene As Total PAHs Chrysene Dibenzo(a,h)anthracene Indeno(1,2,3-cd)pyrene MAG910000 Appendix IV – Part 1 – NOI NHG910000 Page 20 of 24

Known Known Influent Effluent Limitations Test Detection or or # of Parameter method limit Daily Daily believed believed samples (#) (µg/l) maximum average TBEL WQBEL absent present (µg/l) (µg/l) Total Group II PAHs 100 µg/L --- Naphthalene 20 µg/L ---

E. Halogenated SVOCs Total PCBs 0.000064 µg/L --- Pentachlorophenol 1.0 µg/L ---

F. Fuels Parameters Total Petroleum 5.0 mg/L --- Hydrocarbons Ethanol Report mg/L --- Methyl-tert-Butyl Ether 70 µg/L 120 µg/L in MA tert-Butyl Alcohol --- 40 µg/L in NH 90 µg/L in MA tert-Amyl Methyl Ether --- 140 µg/L in NH

Other (i.e., pH, temperature, hardness, salinity, LC50, additional pollutants present); if so, specify:

MAG910000 Appendix IV – Part 1 – NOI NHG910000 Page 21 of 24

E. Treatment system information

1. 1. Indicate the type(s) of treatment that will be applied to effluent prior to discharge: (check all that apply)

□ Adsorption/Absorption □ Advanced Oxidation Processes □ Air Stripping □ Granulated Activated Carbon (“GAC”)/Liquid Phase Carbon Adsorption □ Ion Exchange □ Precipitation/Coagulation/Flocculation □ Separation/Filtration □ Other; if so, specify:

2. 2. Provide a written description of all treatment system(s) or processes that will be applied to the effluent prior to discharge.

Identify each major treatment component (check any that apply): □ Fractionation tanks□ Equalization tank □ Oil/water separator □ Mechanical filter □ Media filter □ Chemical feed tank □ Air stripping unit □ Bag filter □ Other; if so, specify:

Indicate if either of the following will occur (check any that apply): □ Chlorination □ De-chlorination

3. Provide the design flow capacity in gallons per minute (gpm) of the most limiting component.

Indicate the most limiting component:

Is use of a flow meter feasible? (check one): □ Yes □ No, if so, provide justification:

Provide the proposed maximum effluent flow in gpm.

Provide the average effluent flow in gpm.

If Activity Category IV applies, indicate the estimated total volume of water that will be discharged:

4. Has the operator attached a schematic of flow in accordance with the instructions in E, above? (check one): □ Yes □ No

MAG910000 Appendix IV – Part 1 – NOI NHG910000 Page 22 of 24

F. Chemical and additive information 1. Indicate the type(s) of chemical or additive that will be applied to effluent prior to discharge or that may otherwise be present in the discharge(s): (check all that apply)

□ Algaecides/biocides □ Antifoams □ Coagulants □ Corrosion/scale inhibitors □ Disinfectants □ Flocculants □ Neutralizing agents □ Oxidants □ Oxygen □ scavengers □ pH conditioners □ Bioremedial agents, including microbes □ Chlorine or chemicals containing chlorine □ Other; if so, specify:

2. Provide the following information for each chemical/additive, using attachments, if necessary:

a. Product name, chemical formula, and manufacturer of the chemical/additive; b. Purpose or use of the chemical/additive or remedial agent; c. Material Safety Data Sheet (MSDS) and Chemical Abstracts Service (CAS) Registry number for each chemical/additive; d. The frequency (hourly, daily, etc.), duration (hours, days), quantity (maximum and average), and method of application for the chemical/additive; e. Any material compatibility risks for storage and/or use including the control measures used to minimize such risks; and f. If available, the vendor's reported aquatic toxicity (NOAEL and/or LC50 in percent for aquatic organism(s)).

3. Has the operator attached an explanation which demonstrates that the addition of such chemicals/additives may be authorized under this general permit in accordance with the instructions in F, above? (check one): □ Yes □ No; if no, has the operator attached data that demonstrates each of the 126 priority pollutants in CWA Section 307(a) and 40 CFR Part 423.15(j)(1) are non-detect in discharges with the addition of the proposed chemical/additive? (check one): □ Yes □ No

G. Endangered Species Act eligibility determination

1. Indicate under which criterion the discharge(s) is eligible for coverage under this general permit: □ FWS Criterion A: No endangered or threatened species or critical habitat are in proximity to the discharges or related activities or come in contact with the “action area”. □ FWS Criterion B: Formal or informal consultation with the FWS under section 7 of the ESA resulted in either a no jeopardy opinion (formal consultation) or a written concurrence by FWS on a finding that the discharges and related activities are “not likely to adversely affect” listed species or critical habitat (informal consultation). Has the operator completed consultation with FWS? (check one): □ Yes □ No; if no, is consultation underway? (check one): □ Yes □ No □ FWS Criterion C: Using the best scientific and commercial data available, the effect of the discharges and related activities on listed species and critical habitat have been evaluated. Based on those evaluations, a determination is made by EPA, or by the operator and affirmed by EPA, that the discharges and related activities will have “no effect” on any federally threatened or endangered listed species or designated critical habitat under the jurisdiction of the FWS. This determination was made by: (check one) □ the operator □ EPA □ Other; if so, specify: MAG910000 Appendix IV – Part 1 – NOI NHG910000 Page 23 of 24

□ NMFS Criterion: A determination made by EPA is affirmed by the operator that the discharges and related activities will have “no effect” or are “not likely to adversely affect” any federally threatened or endangered listed species or critical habitat under the jurisdiction of NMFS and will not result in any take of listed species. Has the operator previously completed consultation with NMFS? (check one): □ Yes □ No 2. Has the operator attached supporting documentation of ESA eligibility in accordance with the instructions in Appendix I, and G, above? (check one): □ Yes □ No

Does the supporting documentation include any written concurrence or finding provided by the Services? (check one): □ Yes □ No; if yes, attach.

H. National Historic Preservation Act eligibility determination 1. Indicate under which criterion the discharge(s) is eligible for coverage under this general permit: □ Criterion A: No historic properties are present. The discharges and discharge-related activities (e.g., BMPs) do not have the potential to cause effects on historic properties. □ Criterion B: Historic properties are present. Discharges and discharge related activities do not have the potential to cause effects on historic properties. □ Criterion C: Historic properties are present. The discharges and discharge-related activities have the potential to have an effect or will have an adverse effect on historic properties. 2. Has the operator attached supporting documentation of NHPA eligibility in accordance with the instructions in H, above? (check one): □ Yes □ No

Does the supporting documentation include any written agreement with the State Historic Preservation Officer (SHPO), Tribal Historic Preservation Officer (TPHO), or other tribal representative that outlines measures the operator will carry out to mitigate or prevent any adverse effects on historic properties? (check one): □ Yes □ No

I. Supplemental information

Describe any supplemental information being provided with the NOI. Include attachments if required or otherwise necessary.

Has the operator attached data, including any laboratory case narrative and chain of custody used to support the application? (check one): □ Yes □ No Has the operator attached the certification requirement for the Best Management Practices Plan (BMPP)? (check one): □ Yes □ No MAG910000 Appendix IV – Part 1 – NOI NHG910000 Page 24 of 24

J. Certification requirement

I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I have no personal knowledge that the information submitted is other than true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations.

As part of the NOI, as required by Section 2.5.1.c., a BMPP meeting the requirements of this general permit will be developed BMPP certification statement: and implemented upon initiation of discharge.

Notification provided to the appropriate State, including a copy of this NOI, if required. Check one: Yes □ No □

Notification provided to the municipality in which the discharge is located, including a copy of this NOI, if requested. Check one: Yes □ No □

Notification provided to the owner of a private or municipal storm sewer system, if such system is used for site Check one: Yes □ No □ NA □ discharges, including a copy of this NOI, if requested. Permission obtained from the owner of a private or municipal storm sewer system, if such system is used for site discharges. If yes, attach additional conditions. If no, attach explanation and timeframe for obtaining permission. Check one: Yes □ No □ NA □ Notification provided to the owner/operator of the area associated with activities covered by an additional discharge permit(s). Additional discharge permit is (check one): □ RGP □ DGP □ CGP □ MSGP □ Individual NPDES permit Check one: Yes □ No □ NA □ □ Other; if so, specify:

Signature: Date: 7/7/17

Print Name and Title: Matt Young, Senior Project Manager, Environmental Affairs, Office of the General Counsel Cumberland Farms, Inc.

Note: ATC expects to obtain permission to discharge treated effluent to "Outfall No.1 " from the Attleboro DPW in 10 to 14 days from filing this RGP NOI. Notice of Intent for Remediation General Permit Cumberland Farms Inc., 220-226 Pleasant Street, Attleboro, MA

Attachment B – Water Quality Based Effluent Limits (WQBELS) Spreadsheet

ATC Group Services LLC I. Dilution Factor Calculation Method A. 7Q10 Refer to Appendix V for determining critical low flow; must be approved by State before use in calculations. B. Dilution Factor

Calculated as follows: Df = QR + QP

QR = 7Q10 in MGD

QP = Discharge flow, in MGD

II. Effluent Limitation Calculation Method A. Calculate Water Quality Criterion: Step 1. Downstream hardness, calculated as follows:

Cr = QdCd + QsCs

Cr = Downstream hardness in mg/L

Qd = Discharge flow in MGD

Cd = Discharge hardness in mg/L

Qs = Upstream flow (7Q10) in MGD

Cs = Upstream (receiving water) hardness in mg/L

Qr = Downstream receiving water flow in MGD

Step 2. Total recoverable water quality criteria for hardness-dependent metals, calculated as follows:

Total Recoverable Criteria = exp{mc [ln(h)] + bc}

mc = Pollutant-specific coefficient (ma for silver)

bc = Pollutant-specific coefficient (ba for silver) ln = Natural logarithm h = Hardness calculated in Step 1

Step 3. Total recoverable water quality criteria for non-hardness-dependent metals, calculated as follows:

WQC in µg/L = dissolved WQC in µg/L dissolved to total recoverable factor B. Calculate WQBEL: Step 1. WQBEL calculated as follows for parameter sampled in and detected in the receiving water:

Cd = Qr Cr -QsCs

Cr = Water quality criterion in µg/L

Qd = Discharge flow in MGD

Cd = WQBEL in µg/L

Qs = Upstream flow (7Q10) in MGD

Cs = Ustream (receiving water) concentration in µg/L

Qr = Downstream receiving water flow in MGD

Step 2. WQBEL calculated as follows for parameter not sampled in or not detected in receiving water:

Cd = (Qr/Qd) x Cr

Cr = Water quality criterion in µg/L

Qd = Discharge flow in MGD

Qr = Downstream receiving water flow in MGD C. Determine if a WQBEL applies: Step 1. For parameter sampled in and detected in receiving water, downstream concentrations calculated as follows:

Cr = QdCd + QsCs

Cr = Downstream concentration in µg/L

Qd = Discharge flow in MGD

Cd = Influent concentration in µg/L

Qs = Upstream flow (7Q10) in MGD

Cs = Upstream (receiving water) concentration in µg/L

Qr = Downstream receiving water flow in MGD The WQBEL applies if: 1) the projected downstream concentration calculated in accordance with Step 1, above, and the discharge concentration of a parameter are greater than the WQC calculated for that parameter in accordance with II.A, above AND 2) the WQBEL determined for that parameter in accordance with II.B, above, is less than the TBEL in Part 2.1.1 of the RGP for that parameter. Otherwise, the TBEL in Part 2.1.1

of the RGP for that parameter applies.

Step 2. For a parameter not sampled in or not detected in receiving water, the WQBEL applies if: 1) the discharge concentration of a parameter is greater than the WQBEL determined for that parameter in accordance with II.A or II.B, above; AND 2) the WQBEL determined for that parameter in accordance with II.A or II.B, above is less than the TBEL in Part 2.1.1 of the RGP for that parameter. Otherwise, the TBEL in

Part 2.1.1 of the RGP for that parameter applies. Dilution Factor 1.0 Compliance Level TBEL applies if bolded WQBEL applies if bolded A. Inorganics applies if shown Ammonia Report mg/L --- Chloride Report µg/L --- Total Residual Chlorine 0.2 mg/L 11 µg/L 50 µg/L Total Suspended Solids 30 mg/L --- Antimony 206 µg/L 640 µg/L Arsenic 104 µg/L 10 µg/L Cadmium 10.2 µg/L 0.4854 µg/L Chromium III 323 µg/L 164.4 µg/L Chromium VI 323 µg/L 11.4 µg/L Copper 242 µg/L 18.3 µg/L Iron 5000 µg/L 1000 µg/L Lead 160 µg/L 8.68 µg/L Mercury 0.739 µg/L 0.91 µg/L Nickel 1450 µg/L 101.6 µg/L Selenium 235.8 µg/L 5.0 µg/L Silver 35.1 µg/L 14.7 µg/L Zinc 420 µg/L 233.7 µg/L Cyanide 178 mg/L 5.2 µg/L --- µg/L B. Non-Halogenated VOCs Total BTEX 100 µg/L --- Benzene 5.0 µg/L --- 1,4 Dioxane 200 µg/L --- Acetone 7970 µg/L --- Phenol 1,080 µg/L 300 µg/L C. Halogenated VOCs Carbon Tetrachloride 4.4 µg/L 1.6 µg/L 1,2 Dichlorobenzene 600 µg/L --- 1,3 Dichlorobenzene 320 µg/L --- 1,4 Dichlorobenzene 5.0 µg/L --- Total dichlorobenzene --- µg/L --- 1,1 Dichloroethane 70 µg/L --- 1,2 Dichloroethane 5.0 µg/L --- 1,1 Dichloroethylene 3.2 µg/L --- Ethylene Dibromide 0.05 µg/L --- Methylene Chloride 4.6 µg/L --- 1,1,1 Trichloroethane 200 µg/L --- 1,1,2 Trichloroethane 5.0 µg/L --- Trichloroethylene 5.0 µg/L --- Tetrachloroethylene 5.0 µg/L 3.3 µg/L cis-1,2 Dichloroethylene 70 µg/L --- Vinyl Chloride 2.0 µg/L --- D. Non-Halogenated SVOCs Total Phthalates 190 µg/L --- µg/L Diethylhexyl phthalate 101 µg/L 2.2 µg/L Total Group I Polycyclic Aromatic Hydrocarbons 1.0 µg/L --- Benzo(a)anthracene 1.0 µg/L 0.0038 µg/L --- µg/L Benzo(a)pyrene 1.0 µg/L 0.0038 µg/L --- µg/L Benzo(b)fluoranthene 1.0 µg/L 0.0038 µg/L --- µg/L Benzo(k)fluoranthene 1.0 µg/L 0.0038 µg/L --- µg/L Chrysene 1.0 µg/L 0.0038 µg/L --- µg/L Dibenzo(a,h)anthracene 1.0 µg/L 0.0038 µg/L --- µg/L Indeno(1,2,3-cd)pyrene 1.0 µg/L 0.0038 µg/L --- µg/L Total Group II Polycyclic Aromatic Hydrocarbons 100 µg/L --- Naphthalene 20 µg/L --- E. Halogenated SVOCs Total Polychlorinated Biphenyls 0.000064 µg/L --- 0.5 µg/L Pentachlorophenol 1.0 µg/L --- F. Fuels Parameters Total Petroleum Hydrocarbons 5.0 mg/L --- Ethanol Report mg/L --- Methyl-tert-Butyl Ether 70 µg/L 20 µg/L tert-Butyl Alcohol 120 µg/L --- tert-Amyl Methyl Ether 90 µg/L --- Notice of Intent for Remediation General Permit Cumberland Farms Inc., 220-226 Pleasant Street, Attleboro, MA

Attachment C – Laboratory Analytical Report

ATC Group Services LLC Final Report ü Revised Report

Report Date: 07-Jun-17 15:08

Laboratory Report SC35232 ATC Group Services, LLC 500 West Cummings Park, Suite 3750 Project: CFI - Attleboro, MA Woburn, MA 01801-6350 Project #: 05-214211 Attn: Rachel Stevens

I attest that the information contained within the report has been reviewed for accuracy and checked against the quality control requirements for each method. These results relate only to the sample(s) as received. All applicable NELAC requirements have been met.

Massachusetts # M-MA138/MA1110 Authorized by: Connecticut # PH-0777 Florida # E87936 Christina White Maine # MA138 Laboratory Director New Hampshire # 2972/2538 New Jersey # MA011 New York # 11393 Pennsylvania # 68-04426/68-02924 Rhode Island # LAO00348 USDA # P330-15-00375 Vermont # VT-11393

Eurofins Spectrum Analytical holds primary NELAC certification in the State of New York for the analytes as indicated with an X in the "Cert." column within this report. Please note that the State of New York does not offer certification for all analytes. Please refer to our website for specific certification holdings in each state. Please note that this report contains 35 pages of analytical data plus Chain of Custody document(s). When the Laboratory Report is indicated as revised, this report supersedes any previously dated reports for the laboratory ID(s) referenced above. Where this report identifies subcontracted analyses, copies of the subcontractor's test report are available upon request. This report may not be reproduced, except in full, without written approval from Eurofins Spectrum Analytical, Inc.

Eurofins Spectrum Analytical, Inc. is a NELAC accredited laboratory organization and meets NELAC testing standards. Use of the NELAC logo however does not insure that Eurofins Spectrum Analytical, Inc. is currently accredited for the specific method or analyte indicated. Please refer to our "Quality" web page at www.spectrum-analytical.com for a full listing of our current certifications and fields of accreditation. States in which Eurofins Spectrum Analytical, Inc. holds NELAC certification are New York, New Hampshire, New Jersey, Pennsylvania and Florida. All analytical work for Volatile Organic and Air analysis are transferred to and conducted at our 830 Silver Street location (PA-68-04426).

Please contact the Laboratory or Technical Director at 800-789-9115 with any questions regarding the data contained in this laboratory report.

Eurofins Spectrum Analytical, Inc. 830 Silver Street T | 413-789-9018 Agawam, MA 01001 F | 413-789-4076 www.EurofinsUS.com/Spectrum Page 1 of 35 Sample Summary

Work Order: SC35232 Project: CFI - Attleboro, MA Project Number: 05-214211

Laboratory ID Client Sample ID Matrix Date Sampled Date Received SC35232-01 RGP-1 Ground Water 30-May-17 14:00 31-May-17 15:45 SC35232-02 SW-1 Surface Water 30-May-17 15:00 31-May-17 15:45 SC35232-03 Trip Blank Aqueous 30-May-17 00:00 31-May-17 15:45

This laboratory report is not valid without an authorized signature on the cover page. 07-Jun-17 15:08 Page 2 of 35 Reasonable Confidence Protocols Laboratory Analysis QA/QC Certification Form

Laboratory Name: Eurofins Spectrum Analytical, Inc. Client: ATC Group Services, LLC - Woburn, MA Project Location: CFI - Attleboro, MA Project Number: 05-214211 Sampling Date(s): Laboratory Sample ID(s): 5/30/2017 SC35232-01 through SC35232-03 RCP Methods Used: EPA 245.1/7470A EPA 335.4 / SW846 9012B SM3500-Cr-B (11)/7196A

For each analytical method referenced in this laboratory report package, were all specified QA/QC 1 performance criteria followed, including the requirement to explain any criteria falling outside of acceptable ü Yes No guidelines, as specified in the CT DEP method-specific Reasonable Confidence Protocol documents?

1A Were the method specified preservation and holding time requirements met? Yes ü No

VPH and EPH methods only: Was the VPH or EPH method conducted without significant modifications Yes No 1B (see Section 11.3 of respective RCP methods)?

Were all samples received by the laboratory in a condition consistent with that described on the associated 2 ü Yes No chain-of-custody document(s)?

3 Were samples received at an appropriate temperature? ü Yes No Were all QA/QC performance criteria specified in the Reasonable Confidence Protocol documents 4 Yes ü No achieved?

a) Were reporting limits specified or referenced on the chain-of-custody? Yes ü No 5 b) Were these reporting limits met? Yes No

For each analytical method referenced in this laboratory report package, were results reported for all 6 constituents identified in the method-specific analyte lists presented in the Reasonable Confidence Protocol Yes ü No documents?

7 Are project-specific matrix spikes and laboratory duplicates included in this data set? ü Yes No

Note: For all questions to which the response was "No" (with the exception of question #7), additional information must be provided in an attached narrative. If the answer to question #1, #1A, or #1B is "No", the data package does not meet the requirements for "Reasonable Confidence."

I, the undersigned, attest under the pains and penalties of perjury that, to the best of my knowledge and belief and based upon my personal inquiry of those responsible for obtaining the information contained in this analytical report, such information is accurate and complete.

Christina A. White Laboratory Director Date: 6/7/2017

This laboratory report is not valid without an authorized signature on the cover page. 07-Jun-17 15:08 Page 3 of 35 CASE NARRATIVE:

Data has been reported to the RDL. This report excludes estimated concentrations detected below the RDL and above the MDL (J-Flag).

The samples were received 3.5 degrees Celsius, please refer to the Chain of Custody for details specific to temperature upon receipt. An infrared thermometer with a tolerance of +/- 1.0 degrees Celsius was used immediately upon receipt of the samples.

If a Matrix Spike (MS), Matrix Spike Duplicate (MSD) or Duplicate (DUP) was not requested on the Chain of Custody, method criteria may have been fulfilled with a source sample not of this Sample Delivery Group.

Required site-specific Matrix Spike/Matrix Spike Duplicate (MS/MSD) must be requested by the client and sufficient sample must be submitted for the additional analyses. Samples submitted with insufficient volume/weight will not be analyzed for site specific MS/MSD, however a batch MS/MSD may be analyzed from a non-site specific sample.

CTDEP has published a list of analytical methods which provides a series of recommended protocols for the acquisition, analysis and reporting of analytical data in support of decisions being made utilizing the Reasonable Confidence Protocol (RCP). "Reasonable Confidence" can be established only for those methods published by the CTDEP in the RCP guidelines. The compounds and/or elements reported were specifically requested by the client on the Chain of Custody and in some cases may not include the full analyte list as defined in the method. Regulatory limits may not be achieved if specific method and/or technique was not requested on the Chain of Custody.

The CTDEP RCP requests that "all non-detects and all results below the reporting limit are reported as ND (Not Detected at the Specified Reporting Limit)". All non-detects and all results below the reporting limit are reported as "<" (less than) the reporting limit in this report.

If no reporting limits were specified or referenced on the chain-of-custody the laboratory's practical quantitation limits were applied.

For this work order, the reporting limits have not been referenced or specified.

Analyses for Total Hardness, pH, and Total Residual Chlorine fall under the state of Pennsylvania code Chapter 252.6 accreditation by rule.

June 7, 2017 report Revision Case Narrative:

This report has been revised to include the customized analyte list.

See below for any non-conformances and issues relating to quality control samples and/or sample analysis/matrix.

Samples:

SC35232-01 RGP-1 The pH of this sample has been adjusted in the laboratory for the tests listed below in accordance with the preservation requirements of the applicable methods. Hexavalent Chromium Non-polar material (SGT-HEM)

EPA 200.7

Samples:

SC35232-01 RGP-1 MRL raised to correlate to batch QC reporting limits. Iron

EPA 200.8

Blanks:

This laboratory report is not valid without an authorized signature on the cover page. 07-Jun-17 15:08 Page 4 of 35 EPA 200.8

Blanks:

1709063-BLK1 The method blank contains analyte at a concentration above the MRL, however no reportable concentration is present in the sample. Selenium

Duplicates:

1709063-DUP1 Source: SC35232-01 Analyses are not controlled on RPD values from sample concentrations that are less than 5 times the reporting level. The batch is accepted based upon the difference between the sample and duplicate is less than or equal to the reporting limit. Arsenic Chromium Selenium

MRL raised to correlate to batch QC reporting limits. Chromium Selenium

Samples:

SC35232-01 RGP-1 MRL raised to correlate to batch QC reporting limits. Chromium Selenium

EPA 300.0

Spikes:

1709037-MS2 Source: SC35232-01 The spike recovery was outside of QC acceptance limits for the MS, MSD and/or PS due to analyte concentration at 4 times or greater the spike concentration. The QC batch was accepted based on LCS and/or LCSD recoveries within the acceptance limits. Chloride

1709037-MSD2 Source: SC35232-01 The spike recovery was outside of QC acceptance limits for the MS, MSD and/or PS due to analyte concentration at 4 times or greater the spike concentration. The QC batch was accepted based on LCS and/or LCSD recoveries within the acceptance limits. Chloride

Duplicates:

1709037-DUP2 Source: SC35232-01 Sample dilution required for high concentration of target analytes to be within the instrument calibration range. Chloride

Samples:

SC35232-01 RGP-1 Sample dilution required for high concentration of target analytes to be within the instrument calibration range. Chloride

EPA 524.2

This laboratory report is not valid without an authorized signature on the cover page. 07-Jun-17 15:08 Page 5 of 35 EPA 524.2

Samples:

S704963-CCV1 Analyte percent difference is outside individual acceptance criteria (30), but within overall method allowances. 2,2-Dichloropropane (37.1%)

This affected the following samples: 1709075-BLK1 1709075-BS1

EPA 624

Samples:

SC35232-01 RGP-1 This compound is a common laboratory contaminant. Acetone

SC35232-03 Trip Blank This compound is a common laboratory contaminant. Acetone

EPA 625

Calibration:

1705033 Analyte quantified by quadratic equation type calibration. Pentachlorophenol

This affected the following samples: 1709046-BLK1 1709046-BS1 1709046-BSD1 RGP-1 S704986-CCV1

Laboratory Control Samples:

1709046 BS/BSD Fluorene percent recoveries (53/51) are outside individual acceptance criteria, but within overall method allowances. All reported results of the following samples are considered to have a potentially low bias: RGP-1

Phenanthrene percent recoveries (51/49) are outside individual acceptance criteria, but within overall method allowances. All reported results of the following samples are considered to have a potentially low bias: RGP-1

Pyrene percent recoveries (51/49) are outside individual acceptance criteria, but within overall method allowances. All reported results of the following samples are considered to have a potentially low bias: RGP-1

SM3500-Cr-B (11)/7196A

Samples:

This laboratory report is not valid without an authorized signature on the cover page. 07-Jun-17 15:08 Page 6 of 35 SM3500-Cr-B (11)/7196A

Samples:

SC35232-01 RGP-1 This sample was analyzed outside the EPA recommended holding time per client request. Hexavalent Chromium

This laboratory report is not valid without an authorized signature on the cover page. 07-Jun-17 15:08 Page 7 of 35 Sample Acceptance Check Form

Client: ATC Group Services, LLC - Woburn, MA Project: CFI - Attleboro, MA / 05-214211 Work Order: SC35232 Sample(s) received on: 5/31/2017

The following outlines the condition of samples for the attached Chain of Custody upon receipt.

Yes No N/A Were custody seals present? ü Were custody seals intact? ü Were samples received at a temperature of 6°C? ü Were samples refrigerated upon transfer to laboratory representative? ü Were sample containers received intact? ü Were samples properly labeled (labels affixed to sample containers and include sample ID, site ü location, and/or project number and the collection date)? Were samples accompanied by a Chain of Custody document? ü Does Chain of Custody document include proper, full, and complete documentation, which shall ü include sample ID, site location, and/or project number, date and time of collection, collector's name, preservation type, sample matrix and any special remarks concerning the sample? Did sample container labels agree with Chain of Custody document? ü Were samples received within method-specific holding times? ü

This laboratory report is not valid without an authorized signature on the cover page. 07-Jun-17 15:08 Page 8 of 35 Summary of Hits

Lab ID: SC35232-01 Client ID: RGP-1

Parameter Result Flag Reporting Limit Units Analytical Method

Ammonia as Nitrogen 0.29 0.05 mg/L E350.1 Calcium 77.3 0.100 mg/l EPA 200.7 Iron 0.433 R06 0.0400 mg/l EPA 200.7 Magnesium 6.50 0.0100 mg/l EPA 200.7 Cadmium 0.00044 0.00025 mg/l EPA 200.8 Copper 0.00384 0.00025 mg/l EPA 200.8 Nickel 0.00308 0.00025 mg/l EPA 200.8 Zinc 0.00644 0.00250 mg/l EPA 200.8 Chloride 673 D, GS116.0 mg/l EPA 300.0 Hardness 220 0.291 mg/l CaCO3 SM 2340B (11) Salinity 1.31 1.00 ppt (1000) SM 2520 (01) Total Suspended Solids 5.4 0.5 mg/l SM2540D (11)

Lab ID: SC35232-02 Client ID: SW-1

Parameter Result Flag Reporting Limit Units Analytical Method

Ammonia as Nitrogen 0.14 0.05 mg/L E350.1 Calcium 2.80 0.100 mg/l EPA 200.7 Magnesium 0.188 0.0100 mg/l EPA 200.7 Hardness 7.76 0.291 mg/l CaCO3 SM 2340B (11)

Please note that because there are no reporting limits associated with hazardous waste characterizations or micro analyses , this summary does not include hits from these analyses if included in this work order.

This laboratory report is not valid without an authorized signature on the cover page. 07-Jun-17 15:08 Page 9 of 35 Sample Identification Client Project # Matrix Collection Date/Time Received RGP-1 05-214211 Ground Water 30-May-17 14:00 31-May-17 SC35232-01

CAS No. Analyte(s) Result Flag Units *RDL MDL Dilution Method Ref. Prepared Analyzed Analyst Batch Cert.

Volatile Organic Compounds Purgeable Organic Compounds 994-05-8 Tert-amyl methyl ether < 0.50 µg/l 0.50 0.49 1 EPA 524.2 01-Jun-17 01-Jun-17 EK 1709075

Surrogate recoveries: 460-00-4 4-Bromofluorobenzene 88 80-120 % """" " 2037-26-5 Toluene-d8 94 80-120 % """" " 17060-07-0 1,2-Dichloroethane-d4 99 80-120 % """" " Volatile Organic Compounds by GCMS 67-64-1 Acetone < 10.0 O01 µg/l 10.0 0.8 1 EPA 624 01-Jun-17 " EK " 71-43-2 Benzene < 1.0 µg/l 1.0 0.3 1 """ " " X 56-23-5 Carbon tetrachloride < 1.0 µg/l 1.0 0.4 1 """ " " X 95-50-1 1,2-Dichlorobenzene < 1.0 µg/l 1.0 0.3 1 """ " " X 541-73-1 1,3-Dichlorobenzene < 1.0 µg/l 1.0 0.3 1 """ " " X 106-46-7 1,4-Dichlorobenzene < 1.0 µg/l 1.0 0.3 1 """ " " X 75-34-3 1,1-Dichloroethane < 1.0 µg/l 1.0 0.3 1 """ " " X 107-06-2 1,2-Dichloroethane < 1.0 µg/l 1.0 0.3 1 """ " " X 75-35-4 1,1-Dichloroethene < 1.0 µg/l 1.0 0.7 1 """ " " X 156-59-2 cis-1,2-Dichloroethene < 1.0 µg/l 1.0 0.3 1 """ " " X 100-41-4 Ethylbenzene < 1.0 µg/l 1.0 0.3 1 """ " " X 1634-04-4 Methyl tert-butyl ether < 1.0 µg/l 1.0 0.2 1 """ " " 75-09-2 Methylene chloride < 10.0 µg/l 10.0 0.7 1 """ " " X 127-18-4 Tetrachloroethene < 1.0 µg/l 1.0 0.6 1 """ " " X 108-88-3 Toluene < 1.0 µg/l 1.0 0.3 1 """ " " X 71-55-6 1,1,1-Trichloroethane < 1.0 µg/l 1.0 0.5 1 """ " " X 79-00-5 1,1,2-Trichloroethane < 1.0 µg/l 1.0 0.3 1 """ " " X 79-01-6 Trichloroethene < 1.0 µg/l 1.0 0.5 1 """ " " X 75-01-4 Vinyl chloride < 1.0 µg/l 1.0 0.5 1 """ " " X 179601-23-1 m,p-Xylene < 2.0 µg/l 2.0 0.4 1 """ " " X 95-47-6 o-Xylene < 1.0 µg/l 1.0 0.3 1 """ " " X 123-91-1 1,4-Dioxane < 20.0 µg/l 20.0 11.4 1 """ " "

Surrogate recoveries: 460-00-4 4-Bromofluorobenzene 88 70-130 % """" " 2037-26-5 Toluene-d8 94 70-130 % """" " 17060-07-0 1,2-Dichloroethane-d4 99 70-130 % """" " 1868-53-7 Dibromofluoromethane 99 70-130 % """" " Microextractable Organic Compounds Prepared by method General Preparation SVOC 106-93-4 1,2-Dibromoethane (EDB) < 0.0100 µg/l 0.0100 0.00336 1 SW846 8011 01-Jun-17 01-Jun-17 DS 1709100 X Organic Compounds by Modified SW846 8015 Alcohol Analysis Prepared by method General Preparation SVOC 64-17-5 Ethanol < 1.00 mg/l 1.00 0.447 1 SW846 8015 01-Jun-17 01-Jun-17 SM 1709096 X Mod 75-65-0 Tert-Butanol / butyl alcohol < 1.00 mg/l 1.00 0.473 1 """ " " X

Surrogate recoveries: 71-41-0 1-Pentanol 109 40-140 % """" " Semivolatile Organic Compounds by GCMS

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CAS No. Analyte(s) Result Flag Units *RDL MDL Dilution Method Ref. Prepared Analyzed Analyst Batch Cert.

Semivolatile Organic Compounds by GCMS Semivolatile Organic Compounds 83-32-9 Acenaphthene < 5.05 µg/l 5.05 0.698 1 EPA 625 01-Jun-17 01-Jun-17 MSL 1709046 X 208-96-8 Acenaphthylene < 5.05 µg/l 5.05 0.690 1 """ " " X 56-55-3 Benzo (a) anthracene < 5.05 µg/l 5.05 0.541 1 """ " " X 50-32-8 Benzo (a) pyrene < 5.05 µg/l 5.05 0.568 1 """ " " X 205-99-2 Benzo (b) fluoranthene < 5.05 µg/l 5.05 0.441 1 """ " " X 207-08-9 Benzo (k) fluoranthene < 5.05 µg/l 5.05 0.485 1 """ " " X 117-81-7 Bis(2-ethylhexyl)phthalate < 5.05 µg/l 5.05 0.644 1 """ " " X 85-68-7 Butyl benzyl phthalate < 5.05 µg/l 5.05 0.442 1 """ " " X 218-01-9 Chrysene < 5.05 µg/l 5.05 0.537 1 """ " " X 53-70-3 Dibenzo (a,h) anthracene < 5.05 µg/l 5.05 0.455 1 """ " " X 84-66-2 Diethyl phthalate < 5.05 µg/l 5.05 0.629 1 """ " " X 131-11-3 Dimethyl phthalate < 5.05 µg/l 5.05 0.766 1 """ " " X 84-74-2 Di-n-butyl phthalate < 5.05 µg/l 5.05 0.462 1 """ " " X 117-84-0 Di-n-octyl phthalate < 5.05 µg/l 5.05 0.410 1 """ " " X 206-44-0 Fluoranthene < 5.05 µg/l 5.05 0.644 1 """ " " X 86-73-7 Fluorene < 5.05 µg/l 5.05 0.618 1 """ " " X 193-39-5 Indeno (1,2,3-cd) pyrene < 5.05 µg/l 5.05 0.586 1 """ " " X 91-20-3 Naphthalene < 5.05 µg/l 5.05 0.692 1 """ " " X 87-86-5 Pentachlorophenol < 5.05 µg/l 5.05 0.377 1 """ " " X 85-01-8 Phenanthrene < 5.05 µg/l 5.05 0.592 1 """ " " X 108-95-2 Phenol < 5.05 µg/l 5.05 0.652 1 """ " " X 129-00-0 Pyrene < 5.05 µg/l 5.05 0.616 1 """ " " X

Surrogate recoveries: 321-60-8 2-Fluorobiphenyl 45 30-130 % """" " 367-12-4 2-Fluorophenol 29 15-110 % """" " 4165-60-0 Nitrobenzene-d5 45 30-130 % """" " 4165-62-2 Phenol-d5 20 15-110 % """" " 1718-51-0 Terphenyl-dl4 54 30-130 % """" " 118-79-6 2,4,6-Tribromophenol 56 15-110 % """" " Semivolatile Organic Compounds by GC Polychlorinated Biphenyls 12674-11-2 Aroclor-1016 < 0.204 µg/l 0.204 0.106 1 EPA 608 01-Jun-17 02-Jun-17 IMR 1709047 X 11104-28-2 Aroclor-1221 < 0.204 µg/l 0.204 0.117 1 """ " " X 11141-16-5 Aroclor-1232 < 0.204 µg/l 0.204 0.113 1 """ " " X 53469-21-9 Aroclor-1242 < 0.204 µg/l 0.204 0.109 1 """ " " X 12672-29-6 Aroclor-1248 < 0.204 µg/l 0.204 0.139 1 """ " " X 11097-69-1 Aroclor-1254 < 0.204 µg/l 0.204 0.118 1 """ " " X 11096-82-5 Aroclor-1260 < 0.204 µg/l 0.204 0.0868 1 """ " " X 37324-23-5 Aroclor-1262 < 0.204 µg/l 0.204 0.0914 1 """ " " 11100-14-4 Aroclor-1268 < 0.204 µg/l 0.204 0.0934 1 """ " "

Surrogate recoveries: 10386-84-2 4,4-DB-Octafluorobiphenyl 60 30-150 % """" " (Sr) 10386-84-2 4,4-DB-Octafluorobiphenyl 60 30-150 % """" " (Sr) [2C]

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CAS No. Analyte(s) Result Flag Units *RDL MDL Dilution Method Ref. Prepared Analyzed Analyst Batch Cert.

Semivolatile Organic Compounds by GC Polychlorinated Biphenyls 2051-24-3 Decachlorobiphenyl (Sr) 80 30-150 % EPA 608 01-Jun-17 02-Jun-17 IMR 1709047 2051-24-3 Decachlorobiphenyl (Sr) 80 30-150 % """" " [2C] Extractable Petroleum Hydrocarbons Prepared by method SW846 3510C Non-polar material < 1.0 mg/l 1.0 0.9 1 EPA 1664B 01-Jun-17 01-Jun-17 KK 1709071 X (SGT-HEM) Total Metals by EPA 200/6000 Series Methods Prepared by method General Prep-Metal Preservation Field N/A 1 EPA 200/6000 01-Jun-17 BK 1709092 Preserved; methods pH<2 confirmed Total Metals by EPA 200 Series Methods 7440-22-4 Silver < 0.00025 mg/l 0.00025 0.00010 1 EPA 200.8 01-Jun-17 02-Jun-17 edt 1709063 X 7440-38-2 Arsenic < 0.00025 mg/l 0.00025 0.00006 1 """ " " X 7440-70-2 Calcium 77.3 mg/l 0.100 0.0340 1 EPA 200.7 " 02-Jun-17 TBC 1709062 X 7440-43-9 Cadmium 0.00044 mg/l 0.00025 0.00004 1 EPA 200.8 " 02-Jun-17 edt 1709063 X 7440-47-3 Chromium < 0.00125 R06 mg/l 0.00125 0.00015 1 """ " " X 7440-50-8 Copper 0.00384 mg/l 0.00025 0.00004 1 """ " " X 7439-89-6 Iron 0.433 R06 mg/l 0.0400 0.0100 1 EPA 200.7 " 02-Jun-17 TBC 1709062 X 7439-97-6 Mercury < 0.00020 mg/l 0.00020 0.00013 1 EPA 01-Jun-17 01-Jun-17 LNB 1709039 X 245.1/7470A 7439-95-4 Magnesium 6.50 mg/l 0.0100 0.0074 1 EPA 200.7 01-Jun-17 02-Jun-17 TBC 1709062 X 7440-02-0 Nickel 0.00308 mg/l 0.00025 0.00005 1 EPA 200.8 " 02-Jun-17 edt 1709063 X 7439-92-1 Lead < 0.00025 mg/l 0.00025 0.00002 1 """ " " X 7440-36-0 Antimony < 0.00025 mg/l 0.00025 0.00007 1 """ " " X 7782-49-2 Selenium < 0.00130 R06 mg/l 0.00130 0.00012 1 """ " " X 7440-66-6 Zinc 0.00644 mg/l 0.00250 0.00116 1 " " 02-Jun-17 " " X General Chemistry Parameters Prepared by method EPA 200 Series 16065-83-1 Trivalent Chromium < 0.0025 mg/l 0.0025 0.0053 1 Calculation 01-Jun-17 02-Jun-17 edt 1709063 Hardness 220 HD mg/l 0.291 0.115 1 SM 2340B (11) " 02-Jun-17 TBC [CALC] CaCO3 7782-50-5 Total Residual Chlorine < 0.020 ClHT mg/l 0.020 0.006 1 SM4500-Cl-G 02-Jun-17 02-Jun-17 RLT 1709142 (11) 09:26 13:11 16887-00-6 Chloride 673 D, GS1 mg/l 16.0 1.44 16 EPA 300.0 31-May-1 01-Jun-17 CAW 1709037 X 7 18540-29-9 Hexavalent Chromium < 0.005 O09 mg/l 0.005 0.002 1 SM3500-Cr-B 01-Jun-17 01-Jun-17 RLT 1709060 X (11)/7196A 08:27 09:37 57-12-5 Cyanide (total) < 0.00500 mg/l 0.00500 0.00426 1 EPA 335.4 / 01-Jun-17 01-Jun-17 RLT 1709099 X SW846 9012B pH 6.40 pH pH Units 1 ASTM D 31-May-1 31-May-1 BD 1709055 1293-99B 7 19:00 7 19:30 Salinity 1.31 ppt (1000) 1.00 0.144 1 SM 2520 (01) 01-Jun-17 01-Jun-17 BD 1709083 Total Suspended Solids 5.4 mg/l 0.5 0.2 1 SM2540D (11) 01-Jun-17 02-Jun-17 CMB 1709069 X Subcontracted Analyses Prepared by method 388530 Analysis performed by Phoenix Environmental Labs, Inc. * - MACT007 7664-41-7 Ammonia as Nitrogen 0.29 mg/L 0.05 0.05 1 E350.1 02-Jun-17 MACT0 388530A 11:05

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CAS No. Analyte(s) Result Flag Units *RDL MDL Dilution Method Ref. Prepared Analyzed Analyst Batch Cert.

Total Metals by EPA 200/6000 Series Methods Prepared by method General Prep-Metal Preservation Field N/A 1 EPA 200/6000 01-Jun-17 BK 1709092 Preserved; methods pH<2 confirmed Total Metals by EPA 200 Series Methods 7440-70-2 Calcium 2.80 mg/l 0.100 0.0340 1 EPA 200.7 01-Jun-17 02-Jun-17 TBC 1709062 X 7439-95-4 Magnesium 0.188 mg/l 0.0100 0.0074 1 """ " " X General Chemistry Parameters Hardness 7.76 HD mg/l 0.291 0.115 1 SM 2340B (11) 01-Jun-17 02-Jun-17 TBC [CALC] CaCO3 Subcontracted Analyses Prepared by method 388530 Analysis performed by Phoenix Environmental Labs, Inc. * - MACT007 7664-41-7 Ammonia as Nitrogen 0.14 mg/L 0.05 0.05 1 E350.1 02-Jun-17 MACT0 388530A 11:06

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CAS No. Analyte(s) Result Flag Units *RDL MDL Dilution Method Ref. Prepared Analyzed Analyst Batch Cert.

Volatile Organic Compounds Purgeable Organic Compounds 994-05-8 Tert-amyl methyl ether < 0.50 µg/l 0.50 0.49 1 EPA 524.2 01-Jun-17 01-Jun-17 EK 1709075

Surrogate recoveries: 460-00-4 4-Bromofluorobenzene 89 80-120 % """" " 2037-26-5 Toluene-d8 95 80-120 % """" " 17060-07-0 1,2-Dichloroethane-d4 101 80-120 % """" " 1868-53-7 Dibromofluoromethane 99 80-120 % """" " Volatile Organic Compounds by GCMS 67-64-1 Acetone < 10.0 O01 µg/l 10.0 0.8 1 EPA 624 01-Jun-17 " EK " 71-43-2 Benzene < 1.0 µg/l 1.0 0.3 1 """ " " X 56-23-5 Carbon tetrachloride < 1.0 µg/l 1.0 0.4 1 """ " " X 95-50-1 1,2-Dichlorobenzene < 1.0 µg/l 1.0 0.3 1 """ " " X 541-73-1 1,3-Dichlorobenzene < 1.0 µg/l 1.0 0.3 1 """ " " X 106-46-7 1,4-Dichlorobenzene < 1.0 µg/l 1.0 0.3 1 """ " " X 75-34-3 1,1-Dichloroethane < 1.0 µg/l 1.0 0.3 1 """ " " X 107-06-2 1,2-Dichloroethane < 1.0 µg/l 1.0 0.3 1 """ " " X 75-35-4 1,1-Dichloroethene < 1.0 µg/l 1.0 0.7 1 """ " " X 156-59-2 cis-1,2-Dichloroethene < 1.0 µg/l 1.0 0.3 1 """ " " X 100-41-4 Ethylbenzene < 1.0 µg/l 1.0 0.3 1 """ " " X 1634-04-4 Methyl tert-butyl ether < 1.0 µg/l 1.0 0.2 1 """ " " 75-09-2 Methylene chloride < 10.0 µg/l 10.0 0.7 1 """ " " X 127-18-4 Tetrachloroethene < 1.0 µg/l 1.0 0.6 1 """ " " X 108-88-3 Toluene < 1.0 µg/l 1.0 0.3 1 """ " " X 71-55-6 1,1,1-Trichloroethane < 1.0 µg/l 1.0 0.5 1 """ " " X 79-00-5 1,1,2-Trichloroethane < 1.0 µg/l 1.0 0.3 1 """ " " X 79-01-6 Trichloroethene < 1.0 µg/l 1.0 0.5 1 """ " " X 75-01-4 Vinyl chloride < 1.0 µg/l 1.0 0.5 1 """ " " X 179601-23-1 m,p-Xylene < 2.0 µg/l 2.0 0.4 1 """ " " X 95-47-6 o-Xylene < 1.0 µg/l 1.0 0.3 1 """ " " X 123-91-1 1,4-Dioxane < 20.0 µg/l 20.0 11.4 1 """ " "

Surrogate recoveries: 460-00-4 4-Bromofluorobenzene 89 70-130 % """" " 2037-26-5 Toluene-d8 95 70-130 % """" " 17060-07-0 1,2-Dichloroethane-d4 101 70-130 % """" " 1868-53-7 Dibromofluoromethane 99 70-130 % """" "

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Spike Source %REC RPD Analyte(s) Result Flag Units *RDL Level Result %REC Limits RPD Limit

EPA 524.2 Batch 1709075 - SW846 5030 Water MS Blank (1709075-BLK1) Prepared & Analyzed: 01-Jun-17 1,1,2-Trichlorotrifluoroethane (Freon 113) < 0.50 µg/l 0.50 Acetone < 10.0 µg/l 10.0 Acrylonitrile < 0.50 µg/l 0.50 Benzene < 0.50 µg/l 0.50 Bromobenzene < 0.50 µg/l 0.50 Bromochloromethane < 0.50 µg/l 0.50 Bromodichloromethane < 0.50 µg/l 0.50 Bromoform < 0.50 µg/l 0.50 Bromomethane < 0.50 µg/l 0.50 2-Butanone (MEK) < 2.00 µg/l 2.00 n-Butylbenzene < 0.50 µg/l 0.50 sec-Butylbenzene < 0.50 µg/l 0.50 tert-Butylbenzene < 0.50 µg/l 0.50 Carbon disulfide < 0.50 µg/l 0.50 Carbon tetrachloride < 0.50 µg/l 0.50 Chlorobenzene < 0.50 µg/l 0.50 Chloroethane < 0.50 µg/l 0.50 Chloroform < 0.50 µg/l 0.50 Chloromethane < 0.50 µg/l 0.50 2-Chlorotoluene < 0.50 µg/l 0.50 4-Chlorotoluene < 0.50 µg/l 0.50 1,2-Dibromo-3-chloropropane < 0.50 µg/l 0.50 Dibromochloromethane < 0.50 µg/l 0.50 1,2-Dibromoethane (EDB) < 0.50 µg/l 0.50 Dibromomethane < 0.50 µg/l 0.50 1,2-Dichlorobenzene < 0.50 µg/l 0.50 1,3-Dichlorobenzene < 0.50 µg/l 0.50 1,4-Dichlorobenzene < 0.50 µg/l 0.50 Dichlorodifluoromethane (Freon12) < 0.50 µg/l 0.50 1,1-Dichloroethane < 0.50 µg/l 0.50 1,2-Dichloroethane < 0.50 µg/l 0.50 1,1-Dichloroethene < 0.50 µg/l 0.50 cis-1,2-Dichloroethene < 0.50 µg/l 0.50 trans-1,2-Dichloroethene < 0.50 µg/l 0.50 1,2-Dichloropropane < 0.50 µg/l 0.50 1,3-Dichloropropane < 0.50 µg/l 0.50 2,2-Dichloropropane < 0.50 µg/l 0.50 1,1-Dichloropropene < 0.50 µg/l 0.50 cis-1,3-Dichloropropene < 0.50 µg/l 0.50 trans-1,3-Dichloropropene < 0.50 µg/l 0.50 Ethylbenzene < 0.50 µg/l 0.50 Hexachlorobutadiene < 0.50 µg/l 0.50 2-Hexanone (MBK) < 2.00 µg/l 2.00 Isopropylbenzene < 0.50 µg/l 0.50 4-Isopropyltoluene < 0.50 µg/l 0.50 Methyl tert-butyl ether < 0.50 µg/l 0.50 4-Methyl-2-pentanone (MIBK) < 2.00 µg/l 2.00 Methylene chloride < 0.50 µg/l 0.50 Naphthalene < 0.50 µg/l 0.50 n-Propylbenzene < 0.50 µg/l 0.50

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Spike Source %REC RPD Analyte(s) Result Flag Units *RDL Level Result %REC Limits RPD Limit

EPA 524.2 Batch 1709075 - SW846 5030 Water MS Blank (1709075-BLK1) Prepared & Analyzed: 01-Jun-17 Styrene < 0.50 µg/l 0.50 1,1,1,2-Tetrachloroethane < 0.50 µg/l 0.50 1,1,2,2-Tetrachloroethane < 0.50 µg/l 0.50 Tetrachloroethene < 0.50 µg/l 0.50 Toluene < 0.50 µg/l 0.50 1,2,3-Trichlorobenzene < 0.50 µg/l 0.50 1,2,4-Trichlorobenzene < 0.50 µg/l 0.50 1,1,1-Trichloroethane < 0.50 µg/l 0.50 1,1,2-Trichloroethane < 0.50 µg/l 0.50 Trichloroethene < 0.50 µg/l 0.50 Trichlorofluoromethane (Freon 11) < 0.50 µg/l 0.50 1,2,3-Trichloropropane < 0.50 µg/l 0.50 1,2,4-Trimethylbenzene < 0.50 µg/l 0.50 1,3,5-Trimethylbenzene < 0.50 µg/l 0.50 Vinyl chloride < 0.50 µg/l 0.50 m,p-Xylene < 0.50 µg/l 0.50 o-Xylene < 0.50 µg/l 0.50 Tetrahydrofuran < 2.00 µg/l 2.00 Tert-amyl methyl ether < 0.50 µg/l 0.50 Ethyl tert-butyl ether < 0.50 µg/l 0.50 Di-isopropyl ether < 0.50 µg/l 0.50 Tert-Butanol / butyl alcohol < 10.0 µg/l 10.0

Surrogate: 4-Bromofluorobenzene 43.4 µg/l 50.0 87 80-120 Surrogate: Toluene-d8 47.3 µg/l 50.0 95 80-120 Surrogate: 1,2-Dichloroethane-d4 49.5 µg/l 50.0 99 80-120 Surrogate: Dibromofluoromethane 50.5 µg/l 50.0 101 80-120 LCS (1709075-BS1) Prepared & Analyzed: 01-Jun-17 1,1,2-Trichlorotrifluoroethane (Freon 113) 20.1 µg/l 20.0 101 80-120 Acetone 16.4 µg/l 20.0 82 70-130 Acrylonitrile 16.8 µg/l 20.0 84 70-130 Benzene 20.1 µg/l 20.0 101 80-120 Bromobenzene 23.1 µg/l 20.0 116 80-120 Bromochloromethane 19.5 µg/l 20.0 98 80-120 Bromodichloromethane 21.3 µg/l 20.0 106 80-120 Bromoform 24.0 µg/l 20.0 120 80-120 Bromomethane 17.9 µg/l 20.0 90 80-120 2-Butanone (MEK) 19.7 µg/l 20.0 98 70-130 n-Butylbenzene 21.6 µg/l 20.0 108 80-120 sec-Butylbenzene 21.5 µg/l 20.0 108 80-120 tert-Butylbenzene 21.8 µg/l 20.0 109 80-120 Carbon disulfide 19.4 µg/l 20.0 97 70-130 Carbon tetrachloride 24.0 µg/l 20.0 120 80-120 Chlorobenzene 22.4 µg/l 20.0 112 80-120 Chloroethane 18.2 µg/l 20.0 91 80-120 Chloroform 18.4 µg/l 20.0 92 80-120 Chloromethane 16.7 µg/l 20.0 84 80-120 2-Chlorotoluene 24.1 QC2 µg/l 20.0 121 80-120 4-Chlorotoluene 23.5 µg/l 20.0 117 80-120 1,2-Dibromo-3-chloropropane 22.4 µg/l 20.0 112 80-120 Dibromochloromethane 21.1 µg/l 20.0 106 80-120

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Spike Source %REC RPD Analyte(s) Result Flag Units *RDL Level Result %REC Limits RPD Limit

EPA 524.2 Batch 1709075 - SW846 5030 Water MS LCS (1709075-BS1) Prepared & Analyzed: 01-Jun-17 1,2-Dibromoethane (EDB) 21.3 µg/l 20.0 107 80-120 Dibromomethane 19.2 µg/l 20.0 96 80-120 1,2-Dichlorobenzene 22.2 µg/l 20.0 111 80-120 1,3-Dichlorobenzene 23.4 µg/l 20.0 117 80-120 1,4-Dichlorobenzene 21.0 µg/l 20.0 105 80-120 Dichlorodifluoromethane (Freon12) 18.8 µg/l 20.0 94 80-120 1,1-Dichloroethane 18.6 µg/l 20.0 93 80-120 1,2-Dichloroethane 18.5 µg/l 20.0 92 80-120 1,1-Dichloroethene 19.0 µg/l 20.0 95 80-120 cis-1,2-Dichloroethene 18.5 µg/l 20.0 93 80-120 trans-1,2-Dichloroethene 19.4 µg/l 20.0 97 80-120 1,2-Dichloropropane 19.3 µg/l 20.0 96 80-120 1,3-Dichloropropane 19.5 µg/l 20.0 98 80-120 2,2-Dichloropropane 29.4 QC2 µg/l 20.0 147 80-120 1,1-Dichloropropene 20.2 µg/l 20.0 101 80-120 cis-1,3-Dichloropropene 20.3 µg/l 20.0 101 80-120 trans-1,3-Dichloropropene 20.4 µg/l 20.0 102 80-120 Ethylbenzene 23.0 µg/l 20.0 115 80-120 Hexachlorobutadiene 25.0 QC2 µg/l 20.0 125 80-120 2-Hexanone (MBK) 18.5 µg/l 20.0 93 70-130 Isopropylbenzene 22.5 µg/l 20.0 113 80-120 4-Isopropyltoluene 21.0 µg/l 20.0 105 80-120 Methyl tert-butyl ether 19.1 µg/l 20.0 96 80-120 4-Methyl-2-pentanone (MIBK) 18.1 µg/l 20.0 90 70-130 Methylene chloride 18.0 µg/l 20.0 90 80-120 Naphthalene 19.2 µg/l 20.0 96 80-120 n-Propylbenzene 21.5 µg/l 20.0 108 80-120 Styrene 20.5 µg/l 20.0 103 80-120 1,1,1,2-Tetrachloroethane 24.0 µg/l 20.0 120 80-120 1,1,2,2-Tetrachloroethane 22.4 µg/l 20.0 112 80-120 Tetrachloroethene 21.4 µg/l 20.0 107 80-120 Toluene 20.2 µg/l 20.0 101 80-120 1,2,3-Trichlorobenzene 21.8 µg/l 20.0 109 80-120 1,2,4-Trichlorobenzene 22.0 µg/l 20.0 110 80-120 1,1,1-Trichloroethane 21.7 µg/l 20.0 108 80-120 1,1,2-Trichloroethane 19.5 µg/l 20.0 98 80-120 Trichloroethene 20.2 µg/l 20.0 101 80-120 Trichlorofluoromethane (Freon 11) 19.6 µg/l 20.0 98 80-120 1,2,3-Trichloropropane 22.2 µg/l 20.0 111 80-120 1,2,4-Trimethylbenzene 21.1 µg/l 20.0 105 80-120 1,3,5-Trimethylbenzene 21.7 µg/l 20.0 108 80-120 Vinyl chloride 17.7 µg/l 20.0 88 80-120 m,p-Xylene 22.0 µg/l 20.0 110 80-120 o-Xylene 21.6 µg/l 20.0 108 80-120 Tetrahydrofuran 17.3 µg/l 20.0 87 70-130 Tert-amyl methyl ether 17.3 µg/l 20.0 86 70-130 Ethyl tert-butyl ether 21.2 µg/l 20.0 106 70-130 Di-isopropyl ether 18.0 µg/l 20.0 90 70-130 Tert-Butanol / butyl alcohol 186 µg/l 200 93 70-130

Surrogate: 4-Bromofluorobenzene 51.7 µg/l 50.0 103 80-120

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Spike Source %REC RPD Analyte(s) Result Flag Units *RDL Level Result %REC Limits RPD Limit

EPA 524.2 Batch 1709075 - SW846 5030 Water MS LCS (1709075-BS1) Prepared & Analyzed: 01-Jun-17

Surrogate: Toluene-d8 48.2 µg/l 50.0 96 80-120 Surrogate: 1,2-Dichloroethane-d4 48.2 µg/l 50.0 96 80-120 Surrogate: Dibromofluoromethane 54.3 µg/l 50.0 109 80-120 EPA 624 Batch 1709075 - SW846 5030 Water MS Blank (1709075-BLK1) Prepared & Analyzed: 01-Jun-17 Acetone < 10.0 µg/l 10.0 Benzene < 1.0 µg/l 1.0 Carbon tetrachloride < 1.0 µg/l 1.0 1,2-Dichlorobenzene < 1.0 µg/l 1.0 1,3-Dichlorobenzene < 1.0 µg/l 1.0 1,4-Dichlorobenzene < 1.0 µg/l 1.0 1,1-Dichloroethane < 1.0 µg/l 1.0 1,2-Dichloroethane < 1.0 µg/l 1.0 1,1-Dichloroethene < 1.0 µg/l 1.0 cis-1,2-Dichloroethene < 1.0 µg/l 1.0 Ethylbenzene < 1.0 µg/l 1.0 Methyl tert-butyl ether < 1.0 µg/l 1.0 Methylene chloride < 10.0 µg/l 10.0 Tetrachloroethene < 1.0 µg/l 1.0 Toluene < 1.0 µg/l 1.0 1,1,1-Trichloroethane < 1.0 µg/l 1.0 1,1,2-Trichloroethane < 1.0 µg/l 1.0 Trichloroethene < 1.0 µg/l 1.0 Vinyl chloride < 1.0 µg/l 1.0 m,p-Xylene < 2.0 µg/l 2.0 o-Xylene < 1.0 µg/l 1.0 1,4-Dioxane < 20.0 µg/l 20.0

Surrogate: 4-Bromofluorobenzene 43.4 µg/l 50.0 87 70-130 Surrogate: Toluene-d8 47.3 µg/l 50.0 95 70-130 Surrogate: 1,2-Dichloroethane-d4 49.5 µg/l 50.0 99 70-130 Surrogate: Dibromofluoromethane 50.5 µg/l 50.0 101 70-130 Blank (1709075-BLK2) Prepared & Analyzed: 01-Jun-17 Acetone < 50.0 D µg/l 50.0 Benzene < 5.0 D µg/l 5.0 Carbon tetrachloride < 5.0 D µg/l 5.0 1,2-Dichlorobenzene < 5.0 D µg/l 5.0 1,3-Dichlorobenzene < 5.0 D µg/l 5.0 1,4-Dichlorobenzene < 5.0 D µg/l 5.0 1,1-Dichloroethane < 5.0 D µg/l 5.0 1,2-Dichloroethane < 5.0 D µg/l 5.0 1,1-Dichloroethene < 5.0 D µg/l 5.0 cis-1,2-Dichloroethene < 5.0 D µg/l 5.0 Ethylbenzene < 5.0 D µg/l 5.0 Methyl tert-butyl ether < 5.0 D µg/l 5.0 Methylene chloride < 50.0 D µg/l 50.0 Tetrachloroethene < 5.0 D µg/l 5.0 Toluene < 5.0 D µg/l 5.0 1,1,1-Trichloroethane < 5.0 D µg/l 5.0

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Spike Source %REC RPD Analyte(s) Result Flag Units *RDL Level Result %REC Limits RPD Limit

EPA 624 Batch 1709075 - SW846 5030 Water MS Blank (1709075-BLK2) Prepared & Analyzed: 01-Jun-17 1,1,2-Trichloroethane < 5.0 D µg/l 5.0 Trichloroethene < 5.0 D µg/l 5.0 Vinyl chloride < 5.0 D µg/l 5.0 m,p-Xylene < 10.0 D µg/l 10.0 o-Xylene < 5.0 D µg/l 5.0 1,4-Dioxane < 100 D µg/l 100

Surrogate: 4-Bromofluorobenzene 44.8 µg/l 50.0 90 70-130 Surrogate: Toluene-d8 47.8 µg/l 50.0 96 70-130 Surrogate: 1,2-Dichloroethane-d4 50.3 µg/l 50.0 101 70-130 Surrogate: Dibromofluoromethane 49.9 µg/l 50.0 100 70-130 LCS (1709075-BS1) Prepared & Analyzed: 01-Jun-17 Acetone 16.4 µg/l 20.0 82 70-130 Benzene 20.1 µg/l 20.0 101 70-130 Carbon tetrachloride 24.0 µg/l 20.0 120 70-140 1,2-Dichlorobenzene 22.2 µg/l 20.0 111 18-190 1,3-Dichlorobenzene 23.4 µg/l 20.0 117 59-156 1,4-Dichlorobenzene 21.0 µg/l 20.0 105 18-190 1,1-Dichloroethane 18.6 µg/l 20.0 93 59-155 1,2-Dichloroethane 18.5 µg/l 20.0 92 49-155 1,1-Dichloroethene 19.0 µg/l 20.0 95 70-130 cis-1,2-Dichloroethene 18.5 µg/l 20.0 93 70-130 Ethylbenzene 23.0 µg/l 20.0 115 37-162 Methyl tert-butyl ether 19.1 µg/l 20.0 96 70-130 Methylene chloride 18.0 µg/l 20.0 90 1-221 Tetrachloroethene 21.4 µg/l 20.0 107 64-148 Toluene 20.2 µg/l 20.0 101 70-130 1,1,1-Trichloroethane 21.7 µg/l 20.0 108 52-162 1,1,2-Trichloroethane 19.5 µg/l 20.0 98 52-150 Trichloroethene 20.2 µg/l 20.0 101 71-157 Vinyl chloride 17.7 µg/l 20.0 88 1-251 m,p-Xylene 22.0 µg/l 20.0 110 70-130 o-Xylene 21.6 µg/l 20.0 108 70-130 1,4-Dioxane 174 µg/l 200 87 70-130

Surrogate: 4-Bromofluorobenzene 51.7 µg/l 50.0 103 70-130 Surrogate: Toluene-d8 48.2 µg/l 50.0 96 70-130 Surrogate: 1,2-Dichloroethane-d4 48.2 µg/l 50.0 96 70-130 Surrogate: Dibromofluoromethane 54.3 µg/l 50.0 109 70-130 LCS (1709075-BS2) Prepared & Analyzed: 01-Jun-17 Acetone 19.0 D µg/l 20.0 95 70-130 Benzene 19.1 D µg/l 20.0 95 70-130 Carbon tetrachloride 21.5 D µg/l 20.0 108 70-140 1,2-Dichlorobenzene 21.0 D µg/l 20.0 105 18-190 1,3-Dichlorobenzene 23.2 D µg/l 20.0 116 59-156 1,4-Dichlorobenzene 20.1 D µg/l 20.0 100 18-190 1,1-Dichloroethane 17.3 D µg/l 20.0 86 59-155 1,2-Dichloroethane 17.7 D µg/l 20.0 89 49-155 1,1-Dichloroethene 16.9 D µg/l 20.0 85 70-130 cis-1,2-Dichloroethene 17.3 D µg/l 20.0 86 70-130 Ethylbenzene 21.8 D µg/l 20.0 109 37-162 Methyl tert-butyl ether 17.9 D µg/l 20.0 89 70-130

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Spike Source %REC RPD Analyte(s) Result Flag Units *RDL Level Result %REC Limits RPD Limit

EPA 624 Batch 1709075 - SW846 5030 Water MS LCS (1709075-BS2) Prepared & Analyzed: 01-Jun-17 Methylene chloride 17.7 D µg/l 20.0 88 1-221 Tetrachloroethene 19.7 D µg/l 20.0 98 64-148 Toluene 18.7 D µg/l 20.0 94 70-130 1,1,1-Trichloroethane 19.9 D µg/l 20.0 99 52-162 1,1,2-Trichloroethane 19.4 D µg/l 20.0 97 52-150 Trichloroethene 18.4 D µg/l 20.0 92 71-157 Vinyl chloride 13.5 D µg/l 20.0 68 1-251 m,p-Xylene 20.8 D µg/l 20.0 104 70-130 o-Xylene 20.9 D µg/l 20.0 104 70-130 1,4-Dioxane 186 D µg/l 200 93 70-130

Surrogate: 4-Bromofluorobenzene 51.8 µg/l 50.0 104 70-130 Surrogate: Toluene-d8 47.1 µg/l 50.0 94 70-130 Surrogate: 1,2-Dichloroethane-d4 47.4 µg/l 50.0 95 70-130 Surrogate: Dibromofluoromethane 50.0 µg/l 50.0 100 70-130 LCS Dup (1709075-BSD1) Prepared & Analyzed: 01-Jun-17 Acetone 16.7 µg/l 20.0 83 70-130 1 30 Benzene 19.5 µg/l 20.0 98 70-130 3 30 Carbon tetrachloride 22.4 µg/l 20.0 112 70-140 7 30 1,2-Dichlorobenzene 21.4 µg/l 20.0 107 18-190 4 30 1,3-Dichlorobenzene 22.8 µg/l 20.0 114 59-156 3 30 1,4-Dichlorobenzene 20.1 µg/l 20.0 100 18-190 5 30 1,1-Dichloroethane 17.5 µg/l 20.0 87 59-155 6 30 1,2-Dichloroethane 18.1 µg/l 20.0 90 49-155 2 30 1,1-Dichloroethene 17.8 µg/l 20.0 89 70-130 7 30 cis-1,2-Dichloroethene 17.7 µg/l 20.0 89 70-130 4 30 Ethylbenzene 21.5 µg/l 20.0 107 37-162 7 30 Methyl tert-butyl ether 18.6 µg/l 20.0 93 70-130 3 30 Methylene chloride 17.3 µg/l 20.0 86 1-221 4 30 Tetrachloroethene 19.3 µg/l 20.0 96 64-148 11 30 Toluene 19.1 µg/l 20.0 95 70-130 6 30 1,1,1-Trichloroethane 20.7 µg/l 20.0 103 52-162 5 30 1,1,2-Trichloroethane 19.4 µg/l 20.0 97 52-150 0.5 30 Trichloroethene 19.0 µg/l 20.0 95 71-157 6 30 Vinyl chloride 15.5 µg/l 20.0 78 1-251 13 30 m,p-Xylene 20.6 µg/l 20.0 103 70-130 6 30 o-Xylene 20.5 µg/l 20.0 103 70-130 5 30 1,4-Dioxane 182 µg/l 200 91 70-130 4 25

Surrogate: 4-Bromofluorobenzene 50.5 µg/l 50.0 101 70-130 Surrogate: Toluene-d8 48.7 µg/l 50.0 97 70-130 Surrogate: 1,2-Dichloroethane-d4 47.5 µg/l 50.0 95 70-130 Surrogate: Dibromofluoromethane 48.8 µg/l 50.0 98 70-130 LCS Dup (1709075-BSD2) Prepared & Analyzed: 01-Jun-17 Acetone 19.0 D µg/l 20.0 95 70-130 0 30 Benzene 18.1 D µg/l 20.0 90 70-130 5 30 Carbon tetrachloride 20.3 D µg/l 20.0 101 70-140 6 30 1,2-Dichlorobenzene 20.6 D µg/l 20.0 103 18-190 2 30 1,3-Dichlorobenzene 21.3 D µg/l 20.0 107 59-156 8 30 1,4-Dichlorobenzene 19.0 D µg/l 20.0 95 18-190 5 30 1,1-Dichloroethane 16.1 D µg/l 20.0 81 59-155 7 30 1,2-Dichloroethane 16.9 D µg/l 20.0 84 49-155 5 30

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Spike Source %REC RPD Analyte(s) Result Flag Units *RDL Level Result %REC Limits RPD Limit

EPA 624 Batch 1709075 - SW846 5030 Water MS LCS Dup (1709075-BSD2) Prepared & Analyzed: 01-Jun-17 1,1-Dichloroethene 15.7 D µg/l 20.0 78 70-130 7 30 cis-1,2-Dichloroethene 16.3 D µg/l 20.0 81 70-130 6 30 Ethylbenzene 20.3 D µg/l 20.0 102 37-162 7 30 Methyl tert-butyl ether 17.5 D µg/l 20.0 87 70-130 2 30 Methylene chloride 17.1 D µg/l 20.0 86 1-221 3 30 Tetrachloroethene 18.2 D µg/l 20.0 91 64-148 7 30 Toluene 18.1 D µg/l 20.0 90 70-130 3 30 1,1,1-Trichloroethane 18.8 D µg/l 20.0 94 52-162 6 30 1,1,2-Trichloroethane 18.6 D µg/l 20.0 93 52-150 4 30 Trichloroethene 17.4 D µg/l 20.0 87 71-157 5 30 Vinyl chloride 12.5 D µg/l 20.0 62 1-251 8 30 m,p-Xylene 19.4 D µg/l 20.0 97 70-130 7 30 o-Xylene 19.5 D µg/l 20.0 98 70-130 7 30 1,4-Dioxane 176 D µg/l 200 88 70-130 6 25

Surrogate: 4-Bromofluorobenzene 51.8 µg/l 50.0 104 70-130 Surrogate: Toluene-d8 48.2 µg/l 50.0 96 70-130 Surrogate: 1,2-Dichloroethane-d4 47.1 µg/l 50.0 94 70-130 Surrogate: Dibromofluoromethane 48.0 µg/l 50.0 96 70-130 Matrix Spike (1709075-MS1) Source: SC35232-01 Prepared & Analyzed: 01-Jun-17 Benzene 18.5 D µg/l 20.0 0.0 93 70-130 Carbon tetrachloride 21.2 D µg/l 20.0 0.0 106 70-140 1,2-Dichlorobenzene 20.6 D µg/l 20.0 0.0 103 18-190 1,3-Dichlorobenzene 22.0 D µg/l 20.0 0.0 110 59-156 1,4-Dichlorobenzene 19.1 D µg/l 20.0 0.0 96 18-190 1,1-Dichloroethane 16.9 D µg/l 20.0 0.0 85 59-155 1,2-Dichloroethane 17.6 D µg/l 20.0 0.0 88 49-155 1,1-Dichloroethene 16.4 D µg/l 20.0 0.0 82 70-130 Ethylbenzene 20.7 D µg/l 20.0 0.0 103 37-162 Methylene chloride 16.6 D µg/l 20.0 0.0 83 1-221 Tetrachloroethene 19.1 D µg/l 20.0 0.07 95 64-148 Toluene 18.4 D µg/l 20.0 0.0 92 70-130 1,1,1-Trichloroethane 19.6 D µg/l 20.0 0.0 98 52-162 1,1,2-Trichloroethane 18.8 D µg/l 20.0 0.0 94 52-150 Trichloroethene 18.2 D µg/l 20.0 0.07 91 71-157 Vinyl chloride 13.4 D µg/l 20.0 0.0 67 1-251 1,4-Dioxane 160 D µg/l 200 0.0 80 70-130

Surrogate: 4-Bromofluorobenzene 50.9 µg/l 50.0 102 70-130 Surrogate: Toluene-d8 48.7 µg/l 50.0 97 70-130 Surrogate: 1,2-Dichloroethane-d4 47.0 µg/l 50.0 94 70-130 Surrogate: Dibromofluoromethane 48.8 µg/l 50.0 98 70-130 Matrix Spike Dup (1709075-MSD1) Source: SC35232-01 Prepared & Analyzed: 01-Jun-17 Benzene 19.4 D µg/l 20.0 0.0 97 70-130 5 30 Carbon tetrachloride 22.3 D µg/l 20.0 0.0 112 70-140 5 30 1,2-Dichlorobenzene 21.3 D µg/l 20.0 0.0 107 18-190 4 30 1,3-Dichlorobenzene 22.3 D µg/l 20.0 0.0 112 59-156 2 30 1,4-Dichlorobenzene 20.2 D µg/l 20.0 0.0 101 18-190 5 30 1,1-Dichloroethane 17.8 D µg/l 20.0 0.0 89 59-155 5 30 1,2-Dichloroethane 17.7 D µg/l 20.0 0.0 88 49-155 0.3 30 1,1-Dichloroethene 17.2 D µg/l 20.0 0.0 86 70-130 5 30 Ethylbenzene 21.6 D µg/l 20.0 0.0 108 37-162 4 30

This laboratory report is not valid without an authorized signature on the cover page. 07-Jun-17 15:08 Page 21 of 35 Volatile Organic Compounds - Quality Control

Spike Source %REC RPD Analyte(s) Result Flag Units *RDL Level Result %REC Limits RPD Limit

EPA 624 Batch 1709075 - SW846 5030 Water MS Matrix Spike Dup (1709075-MSD1) Source: SC35232-01 Prepared & Analyzed: 01-Jun-17 Methylene chloride 17.1 D µg/l 20.0 0.0 85 1-221 3 30 Tetrachloroethene 20.2 D µg/l 20.0 0.07 100 64-148 5 30 Toluene 19.1 D µg/l 20.0 0.0 96 70-130 4 30 1,1,1-Trichloroethane 20.6 D µg/l 20.0 0.0 103 52-162 5 30 1,1,2-Trichloroethane 19.1 D µg/l 20.0 0.0 96 52-150 2 30 Trichloroethene 19.5 D µg/l 20.0 0.07 97 71-157 7 30 Vinyl chloride 13.7 D µg/l 20.0 0.0 68 1-251 2 30 1,4-Dioxane 178 D µg/l 200 0.0 89 70-130 11 30

Surrogate: 4-Bromofluorobenzene 51.0 µg/l 50.0 102 70-130 Surrogate: Toluene-d8 48.9 µg/l 50.0 98 70-130 Surrogate: 1,2-Dichloroethane-d4 48.3 µg/l 50.0 97 70-130 Surrogate: Dibromofluoromethane 49.7 µg/l 50.0 99 70-130

This laboratory report is not valid without an authorized signature on the cover page. 07-Jun-17 15:08 Page 22 of 35 Microextractable Organic Compounds - Quality Control

Spike Source %REC RPD Analyte(s) Result Flag Units *RDL Level Result %REC Limits RPD Limit

SW846 8011 Batch 1709100 - General Preparation SVOC Blank (1709100-BLK1) Prepared & Analyzed: 01-Jun-17 1,2-Dibromoethane (EDB) < 0.0100 µg/l 0.0100 LCS (1709100-BS1) Prepared & Analyzed: 01-Jun-17 1,2-Dibromoethane (EDB) 0.207 µg/l 0.0100 0.200 104 60-140 LCS Dup (1709100-BSD1) Prepared & Analyzed: 01-Jun-17 1,2-Dibromoethane (EDB) 0.219 µg/l 0.0100 0.200 110 60-140 6 50 Duplicate (1709100-DUP1) Source: SC35232-01 Prepared & Analyzed: 01-Jun-17 1,2-Dibromoethane (EDB) < 0.0100 µg/l 0.0100 BRL 30

This laboratory report is not valid without an authorized signature on the cover page. 07-Jun-17 15:08 Page 23 of 35 Organic Compounds by Modified SW846 8015 - Quality Control

Spike Source %REC RPD Analyte(s) Result Flag Units *RDL Level Result %REC Limits RPD Limit

SW846 8015 Mod Batch 1709096 - General Preparation SVOC Blank (1709096-BLK1) Prepared & Analyzed: 01-Jun-17 Ethanol < 1.00 mg/l 1.00 Tert-Butanol / butyl alcohol < 1.00 mg/l 1.00

Surrogate: 1-Pentanol 44.3 mg/l 50.0 89 40-140 LCS (1709096-BS1) Prepared & Analyzed: 01-Jun-17 Ethanol 105 mg/l 1.00 100 105 40-140 Tert-Butanol / butyl alcohol 99.5 mg/l 1.00 100 99 40-140

Surrogate: 1-Pentanol 43.8 mg/l 50.0 88 40-140 LCS Dup (1709096-BSD1) Prepared & Analyzed: 01-Jun-17 Ethanol 106 mg/l 1.00 100 106 40-140 1 200 Tert-Butanol / butyl alcohol 102 mg/l 1.00 100 102 40-140 2 200

Surrogate: 1-Pentanol 44.3 mg/l 50.0 89 40-140 Duplicate (1709096-DUP1) Source: SC35232-01 Prepared & Analyzed: 01-Jun-17 Ethanol < 1.00 mg/l 1.00 BRL 200 Tert-Butanol / butyl alcohol < 1.00 mg/l 1.00 BRL 200

Surrogate: 1-Pentanol 65.3 mg/l 50.0 131 40-140

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Spike Source %REC RPD Analyte(s) Result Flag Units *RDL Level Result %REC Limits RPD Limit

EPA 625 Batch 1709046 - SW846 3510C Blank (1709046-BLK1) Prepared & Analyzed: 01-Jun-17 Acenaphthene < 5.00 µg/l 5.00 Acenaphthylene < 5.00 µg/l 5.00 Benzo (a) anthracene < 5.00 µg/l 5.00 Benzo (a) pyrene < 5.00 µg/l 5.00 Benzo (b) fluoranthene < 5.00 µg/l 5.00 Benzo (g,h,i) perylene < 5.00 µg/l 5.00 Benzo (k) fluoranthene < 5.00 µg/l 5.00 Bis(2-ethylhexyl)phthalate < 5.00 µg/l 5.00 Butyl benzyl phthalate < 5.00 µg/l 5.00 Chrysene < 5.00 µg/l 5.00 Dibenzo (a,h) anthracene < 5.00 µg/l 5.00 Diethyl phthalate < 5.00 µg/l 5.00 Dimethyl phthalate < 5.00 µg/l 5.00 Di-n-butyl phthalate < 5.00 µg/l 5.00 Di-n-octyl phthalate < 5.00 µg/l 5.00 Fluoranthene < 5.00 µg/l 5.00 Fluorene < 5.00 µg/l 5.00 Indeno (1,2,3-cd) pyrene < 5.00 µg/l 5.00 Naphthalene < 5.00 µg/l 5.00 Pentachlorophenol < 5.00 µg/l 5.00 Phenanthrene < 5.00 µg/l 5.00 Phenol < 5.00 µg/l 5.00 Pyrene < 5.00 µg/l 5.00

Surrogate: 2-Fluorobiphenyl 30.4 µg/l 50.0 61 30-130 Surrogate: 2-Fluorophenol 31.7 µg/l 50.0 63 15-110 Surrogate: Nitrobenzene-d5 35.2 µg/l 50.0 70 30-130 Surrogate: Phenol-d5 31.3 µg/l 50.0 63 15-110 Surrogate: Terphenyl-dl4 32.5 µg/l 50.0 65 30-130 Surrogate: 2,4,6-Tribromophenol 34.6 µg/l 50.0 69 15-110 LCS (1709046-BS1) Prepared & Analyzed: 01-Jun-17 Acenaphthene 25.5 µg/l 5.00 50.0 51 47-145 Acenaphthylene 28.2 µg/l 5.00 50.0 56 33-145 Benzo (a) anthracene 27.0 µg/l 5.00 50.0 54 33-143 Benzo (a) pyrene 26.4 µg/l 5.00 50.0 53 17-163 Benzo (b) fluoranthene 23.9 µg/l 5.00 50.0 48 24-159 Benzo (g,h,i) perylene 23.6 µg/l 5.00 50.0 47 1-219 Benzo (k) fluoranthene 29.1 µg/l 5.00 50.0 58 11-162 Bis(2-ethylhexyl)phthalate 25.3 µg/l 5.00 50.0 51 8-158 Butyl benzyl phthalate 25.9 µg/l 5.00 50.0 52 1-152 Chrysene 26.7 µg/l 5.00 50.0 53 17-168 Dibenzo (a,h) anthracene 26.4 µg/l 5.00 50.0 53 1-227 Diethyl phthalate 26.0 µg/l 5.00 50.0 52 1-114 Dimethyl phthalate 26.0 µg/l 5.00 50.0 52 1-112 Di-n-butyl phthalate 25.2 µg/l 5.00 50.0 50 1-118 Di-n-octyl phthalate 24.1 µg/l 5.00 50.0 48 4-146 Fluoranthene 25.9 µg/l 5.00 50.0 52 26-137 Fluorene 26.3 QC2 µg/l 5.00 50.0 53 59-121 Indeno (1,2,3-cd) pyrene 26.7 µg/l 5.00 50.0 53 1-171 Naphthalene 25.0 µg/l 5.00 50.0 50 21-133 Pentachlorophenol 24.1 µg/l 5.00 50.0 48 14-176

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Spike Source %REC RPD Analyte(s) Result Flag Units *RDL Level Result %REC Limits RPD Limit

EPA 625 Batch 1709046 - SW846 3510C LCS (1709046-BS1) Prepared & Analyzed: 01-Jun-17 Phenanthrene 25.3 QC2 µg/l 5.00 50.0 51 54-120 Phenol 25.9 µg/l 5.00 50.0 52 5-112 Pyrene 25.5 QC2 µg/l 5.00 50.0 51 52-115

Surrogate: 2-Fluorobiphenyl 30.4 µg/l 50.0 61 30-130 Surrogate: 2-Fluorophenol 29.0 µg/l 50.0 58 15-110 Surrogate: Nitrobenzene-d5 31.3 µg/l 50.0 63 30-130 Surrogate: Phenol-d5 26.8 µg/l 50.0 54 15-110 Surrogate: Terphenyl-dl4 29.9 µg/l 50.0 60 30-130 Surrogate: 2,4,6-Tribromophenol 33.8 µg/l 50.0 68 15-110 LCS Dup (1709046-BSD1) Prepared & Analyzed: 01-Jun-17 Acenaphthene 25.3 µg/l 5.00 50.0 51 47-145 1 20 Acenaphthylene 26.5 µg/l 5.00 50.0 53 33-145 6 20 Benzo (a) anthracene 24.6 µg/l 5.00 50.0 49 33-143 9 20 Benzo (a) pyrene 24.8 µg/l 5.00 50.0 50 17-163 6 20 Benzo (b) fluoranthene 22.6 µg/l 5.00 50.0 45 24-159 6 20 Benzo (g,h,i) perylene 23.9 µg/l 5.00 50.0 48 1-219 0.9 20 Benzo (k) fluoranthene 26.8 µg/l 5.00 50.0 54 11-162 8 20 Bis(2-ethylhexyl)phthalate 25.3 µg/l 5.00 50.0 51 8-158 0.04 20 Butyl benzyl phthalate 23.6 µg/l 5.00 50.0 47 1-152 9 20 Chrysene 25.2 µg/l 5.00 50.0 50 17-168 6 20 Dibenzo (a,h) anthracene 25.8 µg/l 5.00 50.0 52 1-227 2 20 Diethyl phthalate 25.5 µg/l 5.00 50.0 51 1-114 2 20 Dimethyl phthalate 24.7 µg/l 5.00 50.0 49 1-112 5 20 Di-n-butyl phthalate 25.4 µg/l 5.00 50.0 51 1-118 1 20 Di-n-octyl phthalate 22.3 µg/l 5.00 50.0 45 4-146 8 20 Fluoranthene 24.8 µg/l 5.00 50.0 50 26-137 4 20 Fluorene 25.6 QC2 µg/l 5.00 50.0 51 59-121 3 20 Indeno (1,2,3-cd) pyrene 25.6 µg/l 5.00 50.0 51 1-171 4 20 Naphthalene 23.3 µg/l 5.00 50.0 47 21-133 7 20 Pentachlorophenol 23.7 µg/l 5.00 50.0 47 14-176 1 20 Phenanthrene 24.6 QC2 µg/l 5.00 50.0 49 54-120 3 20 Phenol 23.3 µg/l 5.00 50.0 47 5-112 11 20 Pyrene 24.3 QC2 µg/l 5.00 50.0 49 52-115 5 20

Surrogate: 2-Fluorobiphenyl 28.9 µg/l 50.0 58 30-130 Surrogate: 2-Fluorophenol 26.6 µg/l 50.0 53 15-110 Surrogate: Nitrobenzene-d5 30.0 µg/l 50.0 60 30-130 Surrogate: Phenol-d5 24.1 µg/l 50.0 48 15-110 Surrogate: Terphenyl-dl4 27.8 µg/l 50.0 56 30-130 Surrogate: 2,4,6-Tribromophenol 33.4 µg/l 50.0 67 15-110

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Spike Source %REC RPD Analyte(s) Result Flag Units *RDL Level Result %REC Limits RPD Limit

EPA 608 Batch 1709047 - SW846 3510C Blank (1709047-BLK1) Prepared & Analyzed: 01-Jun-17 Aroclor-1016 < 0.200 µg/l 0.200 Aroclor-1016 [2C] < 0.200 µg/l 0.200 Aroclor-1221 < 0.200 µg/l 0.200 Aroclor-1221 [2C] < 0.200 µg/l 0.200 Aroclor-1232 < 0.200 µg/l 0.200 Aroclor-1232 [2C] < 0.200 µg/l 0.200 Aroclor-1242 < 0.200 µg/l 0.200 Aroclor-1242 [2C] < 0.200 µg/l 0.200 Aroclor-1248 < 0.200 µg/l 0.200 Aroclor-1248 [2C] < 0.200 µg/l 0.200 Aroclor-1254 < 0.200 µg/l 0.200 Aroclor-1254 [2C] < 0.200 µg/l 0.200 Aroclor-1260 < 0.200 µg/l 0.200 Aroclor-1260 [2C] < 0.200 µg/l 0.200 Aroclor-1262 < 0.200 µg/l 0.200 Aroclor-1262 [2C] < 0.200 µg/l 0.200 Aroclor-1268 < 0.200 µg/l 0.200 Aroclor-1268 [2C] < 0.200 µg/l 0.200

Surrogate: 4,4-DB-Octafluorobiphenyl (Sr) 0.170 µg/l 0.200 85 30-150 Surrogate: 4,4-DB-Octafluorobiphenyl (Sr) 0.190 µg/l 0.200 95 30-150 [2C] Surrogate: Decachlorobiphenyl (Sr) 0.220 µg/l 0.200 110 30-150 Surrogate: Decachlorobiphenyl (Sr) [2C] 0.220 µg/l 0.200 110 30-150 LCS (1709047-BS1) Prepared & Analyzed: 01-Jun-17 Aroclor-1016 2.48 µg/l 0.200 2.50 99 50-114 Aroclor-1016 [2C] 2.50 µg/l 0.200 2.50 100 50-114 Aroclor-1260 2.66 µg/l 0.200 2.50 106 40-127 Aroclor-1260 [2C] 2.59 µg/l 0.200 2.50 104 40-127

Surrogate: 4,4-DB-Octafluorobiphenyl (Sr) 0.190 µg/l 0.200 95 30-150 Surrogate: 4,4-DB-Octafluorobiphenyl (Sr) 0.200 µg/l 0.200 100 30-150 [2C] Surrogate: Decachlorobiphenyl (Sr) 0.230 µg/l 0.200 115 30-150 Surrogate: Decachlorobiphenyl (Sr) [2C] 0.260 µg/l 0.200 130 30-150 LCS Dup (1709047-BSD1) Prepared & Analyzed: 01-Jun-17 Aroclor-1016 2.55 µg/l 0.200 2.50 102 50-114 3 20 Aroclor-1016 [2C] 2.39 µg/l 0.200 2.50 96 50-114 4 20 Aroclor-1260 2.85 µg/l 0.200 2.50 114 40-127 7 20 Aroclor-1260 [2C] 2.88 µg/l 0.200 2.50 115 40-127 11 20

Surrogate: 4,4-DB-Octafluorobiphenyl (Sr) 0.200 µg/l 0.200 100 30-150 Surrogate: 4,4-DB-Octafluorobiphenyl (Sr) 0.220 µg/l 0.200 110 30-150 [2C] Surrogate: Decachlorobiphenyl (Sr) 0.250 µg/l 0.200 125 30-150 Surrogate: Decachlorobiphenyl (Sr) [2C] 0.280 µg/l 0.200 140 30-150

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Spike Source %REC RPD Analyte(s) Result Flag Units *RDL Level Result %REC Limits RPD Limit

EPA 1664B Batch 1709071 - SW846 3510C Blank (1709071-BLK1) Prepared & Analyzed: 01-Jun-17 Non-polar material (SGT-HEM) < 1.0 mg/l 1.0 LCS (1709071-BS1) Prepared & Analyzed: 01-Jun-17 Non-polar material (SGT-HEM) 28.4 mg/l 1.1 41.8 68 64-132

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Spike Source %REC RPD Analyte(s) Result Flag Units *RDL Level Result %REC Limits RPD Limit

EPA 200.7 Batch 1709062 - EPA 200 Series Blank (1709062-BLK1) Prepared: 01-Jun-17 Analyzed: 02-Jun-17 Iron < 0.0400 mg/l 0.0400 Magnesium < 0.0100 mg/l 0.0100 Calcium < 0.100 mg/l 0.100 LCS (1709062-BS1) Prepared: 01-Jun-17 Analyzed: 02-Jun-17 Iron 1.34 mg/l 0.0400 1.25 107 85-115 Calcium 6.64 mg/l 0.100 6.25 106 85-115 Magnesium 1.33 mg/l 0.0100 1.25 106 85-115 EPA 200.8 Batch 1709063 - EPA 200 Series Blank (1709063-BLK1) Prepared: 01-Jun-17 Analyzed: 02-Jun-17 Antimony < 0.00025 mg/l 0.00025 Lead < 0.00025 mg/l 0.00025 Zinc < 0.00250 mg/l 0.00250 Selenium 0.00159 QB2 mg/l 0.00130 Chromium < 0.00125 mg/l 0.00125 Cadmium < 0.00025 mg/l 0.00025 Nickel < 0.00025 mg/l 0.00025 Silver < 0.00025 mg/l 0.00025 Copper < 0.00025 mg/l 0.00025 Arsenic < 0.00025 mg/l 0.00025 LCS (1709063-BS1) Prepared: 01-Jun-17 Analyzed: 02-Jun-17 Zinc 0.0534 D mg/l 0.0250 0.0500 107 85-115 Selenium 0.244 D mg/l 0.0130 0.250 97 85-115 Antimony 0.0521 D mg/l 0.00250 0.0500 104 85-115 Lead 0.0534 D mg/l 0.00250 0.0500 107 85-115 Copper 0.0523 D mg/l 0.00250 0.0500 105 85-115 Silver 0.0526 D mg/l 0.00250 0.0500 105 85-115 Arsenic 0.0553 D mg/l 0.00250 0.0500 111 85-115 Chromium 0.0536 D mg/l 0.0125 0.0500 107 85-115 Nickel 0.0514 D mg/l 0.00250 0.0500 103 85-115 Cadmium 0.0538 D mg/l 0.00250 0.0500 108 85-115 Duplicate (1709063-DUP1) Source: SC35232-01 Prepared: 01-Jun-17 Analyzed: 02-Jun-17 Lead 0.00009 J mg/l 0.00025 0.00009 4 20 Zinc 0.00729 mg/l 0.00250 0.00644 12 20 Antimony 0.00013 J mg/l 0.00025 0.00015 13 20 Selenium 0.00040 J,QR8, mg/l 0.00130 0.00129 106 20 R06 Nickel 0.00308 mg/l 0.00025 0.00308 0.2 20 Copper 0.00384 mg/l 0.00025 0.00384 0.07 20 Chromium 0.00093 J,QR8, mg/l 0.00125 0.00120 25 20 R06 Cadmium 0.00044 mg/l 0.00025 0.00044 0.2 20 Arsenic 0.00015 J,QR8 mg/l 0.00025 0.00011 30 20 Silver < 0.00025 mg/l 0.00025 BRL 20 Matrix Spike (1709063-MS1) Source: SC35232-01 Prepared: 01-Jun-17 Analyzed: 02-Jun-17 Selenium 0.257 D mg/l 0.0130 0.250 0.00129 102 70-130 Zinc 0.0618 D mg/l 0.0250 0.0500 BRL 124 70-130 Antimony 0.0521 D mg/l 0.00250 0.0500 BRL 104 70-130 Lead 0.0508 D mg/l 0.00250 0.0500 BRL 102 70-130 Silver 0.0500 D mg/l 0.00250 0.0500 BRL 100 70-130

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Spike Source %REC RPD Analyte(s) Result Flag Units *RDL Level Result %REC Limits RPD Limit

EPA 200.8 Batch 1709063 - EPA 200 Series Matrix Spike (1709063-MS1) Source: SC35232-01 Prepared: 01-Jun-17 Analyzed: 02-Jun-17 Nickel 0.0520 D mg/l 0.00250 0.0500 0.00308 98 70-130 Copper 0.0520 D mg/l 0.00250 0.0500 0.00384 96 70-130 Chromium 0.0520 D mg/l 0.0125 0.0500 BRL 104 70-130 Cadmium 0.0523 D mg/l 0.00250 0.0500 0.00044 104 70-130 Arsenic 0.0554 D mg/l 0.00250 0.0500 BRL 111 70-130 Post Spike (1709063-PS1) Source: SC35232-01 Prepared: 01-Jun-17 Analyzed: 02-Jun-17 Lead 0.0515 D mg/l 0.00250 0.0500 BRL 103 85-115 Selenium 0.267 D mg/l 0.0130 0.250 0.00129 106 85-115 Antimony 0.0525 D mg/l 0.00250 0.0500 BRL 105 85-115 Copper 0.0520 D mg/l 0.00250 0.0500 0.00384 96 85-115 Chromium 0.0521 D mg/l 0.0125 0.0500 BRL 104 85-115 Arsenic 0.0561 D mg/l 0.00250 0.0500 BRL 112 85-115 Cadmium 0.0526 D mg/l 0.00250 0.0500 0.00044 104 85-115 Silver 0.0501 D mg/l 0.00250 0.0500 BRL 100 85-115 Nickel 0.0518 D mg/l 0.00250 0.0500 0.00308 97 85-115 EPA 245.1/7470A Batch 1709039 - EPA200/SW7000 Series Blank (1709039-BLK1) Prepared & Analyzed: 01-Jun-17 Mercury < 0.00020 mg/l 0.00020 LCS (1709039-BS1) Prepared & Analyzed: 01-Jun-17 Mercury 0.00440 mg/l 0.00020 0.00500 88 85-115 Duplicate (1709039-DUP1) Source: SC35232-01 Prepared & Analyzed: 01-Jun-17 Mercury < 0.00020 mg/l 0.00020 BRL 20 Matrix Spike (1709039-MS1) Source: SC35232-01 Prepared & Analyzed: 01-Jun-17 Mercury 0.00472 mg/l 0.00020 0.00500 BRL 94 80-120 Matrix Spike Dup (1709039-MSD1) Source: SC35232-01 Prepared & Analyzed: 01-Jun-17 Mercury 0.00466 mg/l 0.00020 0.00500 BRL 93 80-120 1 20 Post Spike (1709039-PS1) Source: SC35232-01 Prepared & Analyzed: 01-Jun-17 Mercury 0.00484 mg/l 0.00020 0.00500 BRL 97 85-115

This laboratory report is not valid without an authorized signature on the cover page. 07-Jun-17 15:08 Page 30 of 35 General Chemistry Parameters - Quality Control

Spike Source %REC RPD Analyte(s) Result Flag Units *RDL Level Result %REC Limits RPD Limit

ASTM D 1293-99B Batch 1709055 - General Preparation Duplicate (1709055-DUP1) Source: SC35232-01 Prepared & Analyzed: 31-May-17 pH 6.39 pH Units 6.40 0.2 5 Reference (1709055-SRM1) Prepared & Analyzed: 31-May-17 pH 6.03 pH Units 6.00 100 97.5-102. 5 Reference (1709055-SRM2) Prepared & Analyzed: 31-May-17 pH 6.01 pH Units 6.00 100 97.5-102. 5 EPA 300.0 Batch 1709037 - General Preparation Blank (1709037-BLK1) Prepared: 31-May-17 Analyzed: 01-Jun-17 Chloride < 1.00 mg/l 1.00 LCS (1709037-BS1) Prepared: 31-May-17 Analyzed: 01-Jun-17 Chloride 20.9 mg/l 1.00 20.0 104 90-110 Duplicate (1709037-DUP2) Source: SC35232-01 Prepared: 31-May-17 Analyzed: 01-Jun-17 Chloride 702 GS1, D mg/l 16.0 673 4 20 Matrix Spike (1709037-MS2) Source: SC35232-01 Prepared: 31-May-17 Analyzed: 01-Jun-17 Chloride 872 QM4X mg/l 16.0 128 673 155 90-110 Matrix Spike Dup (1709037-MSD2) Source: SC35232-01 Prepared: 31-May-17 Analyzed: 01-Jun-17 Chloride 873 QM4X mg/l 16.0 128 673 156 90-110 0.08 20 Reference (1709037-SRM1) Prepared: 31-May-17 Analyzed: 01-Jun-17 Chloride 25.9 mg/l 1.00 25.0 103 90-110 EPA 335.4 / SW846 9012B Batch 1709099 - General Preparation Blank (1709099-BLK1) Prepared & Analyzed: 01-Jun-17 Cyanide (total) < 0.00500 mg/l 0.00500 Blank (1709099-BLK2) Prepared & Analyzed: 01-Jun-17 Cyanide (total) < 0.00500 mg/l 0.00500 LCS (1709099-BS1) Prepared & Analyzed: 01-Jun-17 Cyanide (total) 0.283 mg/l 0.00500 0.300 94 90-110 LCS (1709099-BS2) Prepared & Analyzed: 01-Jun-17 Cyanide (total) 0.294 mg/l 0.00500 0.300 98 90-110 Reference (1709099-SRM1) Prepared & Analyzed: 01-Jun-17 Cyanide (total) 0.308 mg/l 0.00500 0.336 92 73.5-126 SM 2520 (01) Batch 1709083 - General Preparation Reference (1709083-SRM1) Prepared & Analyzed: 01-Jun-17 Salinity 10.1 ppt (1000) 1.00 10.0 101 90-110 Reference (1709083-SRM2) Prepared & Analyzed: 01-Jun-17 Salinity 10.1 ppt (1000) 1.00 10.0 101 90-110 SM2540D (11) Batch 1709069 - General Preparation Blank (1709069-BLK1) Prepared: 01-Jun-17 Analyzed: 02-Jun-17 Total Suspended Solids < 0.5 mg/l 0.5 LCS (1709069-BS1) Prepared: 01-Jun-17 Analyzed: 02-Jun-17 Total Suspended Solids 94.0 mg/l 10.0 100 94 90-110 SM3500-Cr-B (11)/7196A Batch 1709060 - General Preparation

This laboratory report is not valid without an authorized signature on the cover page. 07-Jun-17 15:08 Page 31 of 35 General Chemistry Parameters - Quality Control

Spike Source %REC RPD Analyte(s) Result Flag Units *RDL Level Result %REC Limits RPD Limit

SM3500-Cr-B (11)/7196A Batch 1709060 - General Preparation Blank (1709060-BLK1) Prepared & Analyzed: 01-Jun-17 Hexavalent Chromium < 0.005 mg/l 0.005 LCS (1709060-BS1) Prepared & Analyzed: 01-Jun-17 Hexavalent Chromium 0.048 mg/l 0.005 0.0500 95 90-111 Reference (1709060-SRM1) Prepared & Analyzed: 01-Jun-17 Hexavalent Chromium 0.026 mg/l 0.005 0.0250 102 85-115 SM4500-Cl-G (11) Batch 1709142 - General Preparation Blank (1709142-BLK1) Prepared & Analyzed: 02-Jun-17 Total Residual Chlorine < 0.020 mg/l 0.020 LCS (1709142-BS1) Prepared & Analyzed: 02-Jun-17 Total Residual Chlorine 0.045 mg/l 0.020 0.0500 90 90-110 Reference (1709142-SRM1) Prepared & Analyzed: 02-Jun-17 Total Residual Chlorine 0.097 mg/l 0.020 0.105 92 85-115

This laboratory report is not valid without an authorized signature on the cover page. 07-Jun-17 15:08 Page 32 of 35 Subcontracted Analyses - Quality Control

Spike Source %REC RPD Analyte(s) Result Flag Units *RDL Level Result %REC Limits RPD Limit

E350.1 Batch 388530A - 388530 BLK (BY31046-BLK) Prepared: 01-Jun-17 Analyzed: 02-Jun-17 Ammonia as Nitrogen < 0.05 mg/L 0.05 - DUP (BY31046-DUP) Source: BY31046 Prepared: 01-Jun-17 Analyzed: 02-Jun-17 Ammonia as Nitrogen 31.8 mg/L 0.50 - 1.6 20 LCS (BY31046-LCS) Prepared: 01-Jun-17 Analyzed: 02-Jun-17 Ammonia as Nitrogen 3.790 mg/L 0.05 3.74 101 90-110 20 MS (BY31046-MS) Source: BY31046 Prepared: 01-Jun-17 Analyzed: 02-Jun-17 Ammonia as Nitrogen 52.50 mg/L 0.05 20 106 90-110 20

This laboratory report is not valid without an authorized signature on the cover page. 07-Jun-17 15:08 Page 33 of 35 Notes and Definitions

D Data reported from a dilution GS1 Sample dilution required for high concentration of target analytes to be within the instrument calibration range. O01 This compound is a common laboratory contaminant. O09 This sample was analyzed outside the EPA recommended holding time per client request. QB2 The method blank contains analyte at a concentration above the MRL, however no reportable concentration is present in the sample. QC2 Analyte out of acceptance range in QC spike but no reportable concentration present in sample. QM4X The spike recovery was outside of QC acceptance limits for the MS, MSD and/or PS due to analyte concentration at 4 times or greater the spike concentration. The QC batch was accepted based on LCS and/or LCSD recoveries within the acceptance limits. QR8 Analyses are not controlled on RPD values from sample concentrations that are less than 5 times the reporting level. The batch is accepted based upon the difference between the sample and duplicate is less than or equal to the reporting limit. R06 MRL raised to correlate to batch QC reporting limits. dry Sample results reported on a dry weight basis NR Not Reported RPD Relative Percent Difference J Detected but below the Reporting Limit; therefore, result is an estimated concentration (CLP J-Flag). ClHT The method for residual chlorine indicates that samples should be analyzed immediately. 40 CFR 136 specifies a holding time of 15 minutes from sampling to analysis. Therefore all aqueous residual chlorine samples not analyzed in the field are considered out of hold time at the time of sample receipt. pH The method for pH does not stipulate a specific holding time other than to state that the samples should be analyzed as soon as possible. For aqueous samples the 40 CFR 136 specifies a holding time of 15 minutes from sampling to analysis. Therefore all aqueous pH samples not analyzed in the field are considered out of hold time at the time of sample receipt. All soil samples are analyzed as soon as possible after sample receipt. HD Total Hardness is a calculation based on the reported values of Ca and Mg.

Interpretation of Total Petroleum Hydrocarbon Report Petroleum identification is determined by comparing the GC fingerprint obtained from the sample with a library of GC fingerprints obtained from analyses of various petroleum products. Possible match categories are as follows:

Gasoline - includes regular, unleaded, premium, etc. Fuel Oil #2 - includes home heating oil, #2 fuel oil, and diesel Fuel Oil #4 - includes #4 fuel oil Fuel Oil #6 - includes #6 fuel oil and bunker "C" oil Motor Oil - includes virgin and waste automobile oil Ligroin - includes mineral spirits, petroleum naphtha, vm&p naphtha Aviation Fuel - includes kerosene, Jet A and JP-4 Other Oil - includes lubricating and cutting oil, and silicon oil

At times, the unidentified petroleum product is quantified using a calibration that most closely approximates the distribution of compounds in the sample. When this occurs, the result is qualified as Calculated as.

This laboratory report is not valid without an authorized signature on the cover page. 07-Jun-17 15:08 Page 34 of 35 Laboratory Control Sample (LCS): A known matrix spiked with compound(s) representative of the target analytes, which is used to document laboratory performance.

Matrix Duplicate: An intra-laboratory split sample which is used to document the precision of a method in a given sample matrix.

Matrix Spike: An aliquot of a sample spiked with a known concentration of target analyte(s). The spiking occurs prior to sample preparation and analysis. A matrix spike is used to document the bias of a method in a given sample matrix.

Method Blank: An analyte-free matrix to which all reagents are added in the same volumes or proportions as used in sample processing. The method blank should be carried through the complete sample preparation and analytical procedure. The method blank is used to document contamination resulting from the analytical process.

Method Detection Limit (MDL): The minimum concentration of a substance that can be measured and reported with 99% confidence that the analyte concentration is greater than zero and is determined from analysis of a sample in a given matrix type containing the analyte.

Reportable Detection Limit (RDL): The lowest concentration that can be reliably achieved within specified limits of precision and accuracy during routine laboratory operating conditions. For many analytes the RDL analyte concentration is selected as the lowest non-zero standard in the calibration curve. While the RDL is approximately 5 to 10 times the MDL, the RDL for each sample takes into account the sample volume/weight, extract/digestate volume, cleanup procedures and, if applicable, dry weight correction. Sample RDLs are highly matrix-dependent.

Surrogate: An organic compound which is similar to the target analyte(s) in chemical composition and behavior in the analytical process, but which is not normally found in environmental samples. These compounds are spiked into all blanks, standards, and samples prior to analysis. Percent recoveries are calculated for each surrogate.

Continuing Calibration Verification: The calibration relationship established during the initial calibration must be verified at periodic intervals. Concentrations, intervals, and criteria are method specific.

This laboratory report is not valid without an authorized signature on the cover page. 07-Jun-17 15:08 Page 35 of 35

Batch Summary

[CALC] General Chemistry Parameters 1709062 SC35232-01 (RGP-1) Total Metals by EPA 200 Series Methods SC35232-02 (SW-1) 1709062-BLK1 1709062-BS1 1709037 SC35232-01 (RGP-1) General Chemistry Parameters SC35232-02 (SW-1) 1709037-BLK1 1709063 1709037-BS1 1709037-DUP2 Total Metals by EPA 200 Series Methods 1709037-MS2 1709063-BLK1 1709037-MSD2 1709063-BS1 1709037-SRM1 1709063-DUP1 SC35232-01 (RGP-1) 1709063-MS1 1709063-PS1 1709039 SC35232-01 (RGP-1) Total Metals by EPA 200 Series Methods SC35232-01 (RGP-1) 1709039-BLK1 1709069 1709039-BS1 1709039-DUP1 General Chemistry Parameters 1709039-MS1 1709069-BLK1 1709039-MSD1 1709069-BS1 1709039-PS1 SC35232-01 (RGP-1) SC35232-01 (RGP-1) 1709071 1709046 Extractable Petroleum Hydrocarbons Semivolatile Organic Compounds by GCMS 1709071-BLK1 1709046-BLK1 1709071-BS1 1709046-BS1 SC35232-01 (RGP-1) 1709046-BSD1 SC35232-01 (RGP-1) 1709075 Volatile Organic Compounds 1709047 1709075-BLK1 Semivolatile Organic Compounds by GC 1709075-BLK2 1709047-BLK1 1709075-BS1 1709047-BS1 1709075-BS2 1709047-BSD1 1709075-BSD1 SC35232-01 (RGP-1) 1709075-BSD2 1709075-MS1 1709055 1709075-MSD1 General Chemistry Parameters SC35232-01 (RGP-1) 1709055-DUP1 SC35232-03 (Trip Blank) 1709055-SRM1 1709083 1709055-SRM2 SC35232-01 (RGP-1) General Chemistry Parameters 1709083-SRM1 1709060 1709083-SRM2 General Chemistry Parameters SC35232-01 (RGP-1) 1709060-BLK1 1709060-BS1 1709060-SRM1 SC35232-01 (RGP-1) 1709092 S605424-CAL7 Total Metals by EPA 200/6000 Series Methods S605424-ICV1 SC35232-01 (RGP-1) S605424-LCV1 SC35232-02 (SW-1) S702336 1709096 Semivolatile Organic Compounds by GC Organic Compounds by Modified SW846 8015 S702336-CAL1 1709096-BLK1 S702336-CAL2 1709096-BS1 S702336-CAL3 1709096-BSD1 S702336-CAL4 1709096-DUP1 S702336-CAL5 SC35232-01 (RGP-1) S702336-CAL6 S702336-CAL7 1709099 S702336-CAL8 S702336-CAL9 General Chemistry Parameters S702336-CALA 1709099-BLK1 S702336-CALB 1709099-BLK2 S702336-CALC 1709099-BS1 S702336-CALD 1709099-BS2 S702336-CALE 1709099-SRM1 S702336-CALF SC35232-01 (RGP-1) S702336-CALG S702336-CALH 1709100 S702336-CALI Microextractable Organic Compounds S702336-CALJ 1709100-BLK1 S702336-CALK 1709100-BS1 S702336-CALL 1709100-BSD1 S702336-CALM 1709100-DUP1 S702336-CALN SC35232-01 (RGP-1) S702336-CALO S702336-CALP 1709142 S702336-CALQ General Chemistry Parameters S702336-CALR 1709142-BLK1 S702336-CALS 1709142-BS1 S702336-CALT 1709142-SRM1 S702336-CALU SC35232-01 (RGP-1) S702336-ICV1 S702336-ICV2 388530A S702336-ICV3 Subcontracted Analyses S702336-ICV4 BY31046-BLK S702336-ICV5 BY31046-DUP S702336-ICV6 BY31046-LCS S702336-LCV1 BY31046-MS S702336-LCV2 SC35232-01 (RGP-1) S702336-LCV3 SC35232-02 (SW-1) S702336-LCV4 S702336-LCV5 S605424 S702336-LCV6 Organic Compounds by Modified SW846 8015 S605424-CAL1 S605424-CAL2 S605424-CAL3 S605424-CAL4 S605424-CAL5 S605424-CAL6 S704664 S704988-CAL1 Volatile Organic Compounds S704988-CAL2 S704664-CAL1 S704988-CAL3 S704664-CAL2 S704988-CAL4 S704664-CAL3 S704988-CAL5 S704664-CAL4 S704988-CAL6 S704664-CAL5 S704988-CAL7 S704664-CAL6 S704988-ICV1 S704664-CAL7 S704988-LCV1 S704664-CAL8 S704989 S704664-CAL9 S704664-CALA Microextractable Organic Compounds S704664-CALB S704989-CCV1 S704664-ICV1 S704989-CCV2 S704664-LCV1 S704664-LCV2 S705010 S704664-TUN1 Organic Compounds by Modified SW846 8015 S705010-CCV1 S704839 S705010-CCV2 Semivolatile Organic Compounds by GCMS S704839-CAL1 S704839-CAL2 S704839-CAL3 S704839-CAL4 S704839-CAL5 S704839-CAL6 S704839-CAL7 S704839-CAL8 S704839-CAL9 S704839-CALA S704839-ICV1 S704839-LCV1 S704839-LCV2 S704839-TUN1

S704963 Volatile Organic Compounds S704963-CCV1 S704963-TUN1

S704983 Semivolatile Organic Compounds by GC S704983-CCV1 S704983-CCV2 S704983-IBL1 S704983-IBL2

S704986 Semivolatile Organic Compounds by GCMS S704986-CCV1 S704986-TUN1

S704988 Microextractable Organic Compounds Notice of Intent for Remediation General Permit Cumberland Farms Inc., 220-226 Pleasant Street, Attleboro, MA

Attachment D – Federally Listed Endangered and Threatened Species in Massachusetts List and 2017 No Species Present letter

ATC Group Services LLC FEDERALLY LISTED ENDANGERED AND THREATENED SPECIES IN MASSACHUSETTS

FEDERAL COUNTY SPECIES GENERAL LOCATION/HABITAT TOWNS STATUS Piping Plover Threatened Coastal Beaches All Towns

Roseate Tern Endangered Coastal beaches and the Atlantic Ocean All Towns

Northeastern beach Threatened Coastal Beaches Chatham tiger beetle

Barnstable Sandplain gerardia Endangered Open areas with sandy soils. Sandwich and Falmouth. Northern Red- Endangered Inland Ponds and Rivers Bourne (north of the Cape Cod Canal) bellied Cooter Coastal Beaches and Rocky Shores, sand Red Knot1 Threatened Coastal Towns and mud flats Threatened Northern Long- Winter- mines and caves, Summer – wide Final 4(d) Statewide eared Bat variety of forested habitats Rule Bog Turtle Threatened Wetlands Egremont and Sheffield Threatened Berkshire Northern Long- Winter- mines and caves, Summer – wide Final 4(d) Statewide eared Bat variety of forested habitats Rule Piping Plover Threatened Coastal Beaches Fairhaven, Dartmouth, Westport Fairhaven, New Bedford, Dartmouth, Roseate Tern Endangered Coastal beaches and the Atlantic Ocean Westport Northern Red- Endangered Inland Ponds and Rivers Taunton Bristol bellied Cooter Coastal Beaches and Rocky Shores, sand Red Knot1 Threatened Coastal Towns and mud flats Threatened Northern Long- Winter- mines and caves, Summer – wide Final 4(d) Statewide eared Bat variety of forested habitats Rule Roseate Tern Endangered Coastal beaches and the Atlantic Ocean All Towns

Piping Plover Threatened Coastal Beaches All Towns

Northeastern beach Threatened Coastal Beaches Aquinnah and Chilmark tiger beetle Dukes Sandplain gerardia Endangered Open areas with sandy soils. West Tisbury Coastal Beaches and Rocky Shores, sand Red Knot1 Threatened Coastal Towns and mud flats Threatened Northern Long- Winter- mines and caves, Summer – wide Final 4(d) Statewide eared Bat variety of forested habitats Rule

Updated 02/05/2016

FEDERALLY LISTED ENDANGERED AND THREATENED SPECIES IN MASSACHUSETTS FEDERAL COUNTY SPECIES GENERAL LOCATION/HABITAT TOWNS STATUS Small whorled Forests with somewhat poorly drained Threatened Gloucester, Essex and Manchester Pogonia soils and/or a seasonally high water table Gloucester, Essex, Ipswich, Rowley, Piping Plover Threatened Coastal Beaches Revere, Newbury, Newburyport and Essex Salisbury Coastal Beaches and Rocky Shores, sand Red Knot1 Threatened Coastal Towns and mud flats Threatened Northern Long- Winter- mines and caves, Summer – wide Final 4(d) Statewide eared Bat variety of forested habitats Rule Northeastern Endangered Wetlands Montague, Warwick bulrush Dwarf Endangered Mill River Whately Franklin wedgemussel Threatened Northern Long- Winter- mines and caves, Summer – wide Final 4(d) Statewide eared Bat variety of forested habitats Rule Small whorled Forests with somewhat poorly drained Threatened Hadley Pogonia soils and/or a seasonally high water table Sandy beaches along the Connecticut Puritan tiger beetle Threatened Northampton and Hadley River Hampshire Dwarf Endangered Rivers and Streams. Hatfield, Amherst and Northampton wedgemussel Threatened Northern Long- Winter- mines and caves, Summer – wide Final 4(d) Statewide eared Bat variety of forested habitats Rule Small whorled Forests with somewhat poorly drained Threatened Southwick Pogonia soils and/or a seasonally high water table Hampden Threatened Northern Long- Winter- mines and caves, Summer – wide Final 4(d) Statewide eared Bat variety of forested habitats Rule Small whorled Forests with somewhat poorly drained Threatened Groton Pogonia soils and/or a seasonally high water table Middlesex Threatened Northern Long- Winter- mines and caves, Summer – wide Final 4(d) Statewide eared Bat variety of forested habitats Rule Piping Plover Threatened Coastal Beaches Nantucket Roseate Tern Endangered Coastal beaches and the Atlantic Ocean Nantucket American burying Endangered Upland grassy meadows Nantucket Nantucket beetle Coastal Beaches and Rocky Shores, sand Red Knot1 Threatened Coastal Towns and mud flats Threatened Northern Long- Winter- mines and caves, Summer – wide Final 4(d) Statewide eared Bat variety of forested habitats Rule

Updated 02/05/2016

FEDERALLY LISTED ENDANGERED AND THREATENED SPECIES IN MASSACHUSETTS

FEDERAL COUNTY SPECIES GENERAL LOCATION/HABITAT TOWNS STATUS Scituate, Marshfield, Duxbury, Plymouth, Piping Plover Threatened Coastal Beaches Wareham and Mattapoisett Kingston, Middleborough, Carver, Northern Red- Endangered Inland Ponds and Rivers Plymouth, Bourne, Wareham, Halifax, bellied Cooter and Pembroke Plymouth, Marion, Wareham, and Plymouth Roseate Tern Endangered Coastal beaches and the Atlantic Ocean Mattapoisett. Coastal Beaches and Rocky Shores, sand Red Knot1 Threatened Coastal Towns and mud flats Threatened Northern Long- Winter- mines and caves, Summer – wide Final 4(d) Statewide eared Bat variety of forested habitats Rule Piping Plover Threatened Coastal Beaches Revere, Winthrop Coastal Beaches and Rocky Shores, sand Red Knot1 Threatened Coastal Towns Suffolk and mud flats Threatened Northern Long- Winter- mines and caves, Summer – wide Final 4(d) Statewide eared Bat variety of forested habitats Rule Small whorled Forests with somewhat poorly drained Threatened Leominster Pogonia soils and/or a seasonally high water table Worcester Threatened Northern Long- Winter- mines and caves, Summer – wide Final 4(d) Statewide eared Bat variety of forested habitats Rule

1Migratory only, scattered along the coast in small numbers

-Eastern cougar and gray wolf are considered extirpated in Massachusetts. -Endangered gray wolves are not known to be present in Massachusetts, but dispersing individuals from source populations in Canada may occur statewide. -Critical habitat for the Northern Red-bellied Cooter is present in Plymouth County.

Updated 02/05/2016

Notice of Intent for Remediation General Permit Cumberland Farms Inc., 220-226 Pleasant Street, Attleboro, MA

Attachment E – Massachusetts Historical Commission Database Results

ATC Group Services LLC MACRIS Search Results Search Criteria: Town(s): Attleboro; Place: Attleboro; Street Name: pleasant; Resource Type(s): Area, Building, Burial Ground, Object, Structure;

Inv. No. Property Name Street Town Year

ATT.944 Attleboro Common Park St Attleboro 1744 ATT.549 Taunton Branch Railroad Signal Tower Pleasant St Attleboro c 1875 ATT.550 Morey, Judge Samuel House 7 Pleasant St Attleboro c 1801 ATT.29 Balkcom-Brooks - Robinson Gad Company Car 27 Pleasant St Attleboro r 1925 Showroom ATT.30 Holman, Samuel Double House and Real Estate 37 Pleasant St Attleboro r 1905 Office ATT.140 93 Pleasant St Attleboro c 1900 ATT.141 Horton, Maj. Everett S. House 106 Pleasant St Attleboro r 1875 ATT.142 Swift, Dr. T. L. House 117 Pleasant St Attleboro c 1880 ATT.143 Robinson, Dr. Henry S. House 136 Pleasant St Attleboro c 1870 ATT.144 137 Pleasant St Attleboro r 1875 ATT.145 Mossberg, Frank House 141 Pleasant St Attleboro r 1895 ATT.146 Handy, James R. House 145 Pleasant St Attleboro c 1890 ATT.147 Nolan, Thomas F. Grocery Store 170 Pleasant St Attleboro r 1905 ATT.148 171 Pleasant St Attleboro r 1895 ATT.149 Dennis, John House 175 Pleasant St Attleboro c 1900 ATT.150 179 Pleasant St Attleboro c 1890 ATT.151 Alger, Isaac House and Cranberry Farm 546 Pleasant St Attleboro 1843 ATT.152 Alger, Isaac House 557 Pleasant St Attleboro r 1855 ATT.153 Alger, Isaac House and Cranberry Farm 572 Pleasant St Attleboro 1790 ATT.154 606 Pleasant St Attleboro c 1900

Friday, June 05, 2015 Page 1 of 1 Notice of Intent for Remediation General Permit Cumberland Farms Inc., 220-226 Pleasant Street, Attleboro, MA

Attachment F – Public Notification Documentation

ATC Group Services LLC 500 Cummings Park, Suite Suite 3750 Woburn, MA 01801 Telephone 781-932-9400 Fax 781-932-6211 www.atcgroupservices.com

July 7, 2017

Tara Martin City of Attleboro Conservation Commission 77 Park Street Attleboro, Massachusetts 02703 [email protected]

Re: Remediation General Permit – Notice of Intent 220-226 Pleasant Street, Attleboro, MA Parcels 22 and 22A ATC Project No. 0521421103 Release Tracking Numbers (RTNs): 4-20044, 4-26108, 4-22275, and 4-25516

Dear Ms. Martin,

On behalf of Cumberland Farms, Inc. (CFI), ATC Group Services LLC (LLC) has submitted a Remediation General Permit (RGP) Application to the USEPA for dewatering during the upcoming proposed Redevelopment activities and remediation of contaminated soils. Redevelopment activities will consist removal of former UST system, demolition of the existing building, installation of a new UST system and construction of a new commercial building. The property is currently listed as a “Disposal Site” with the Massachusetts Department of Environmental Protection (MassDEP) under Release Tracking Numbers (RTN) 4-20044, 4-26108, 4-22275, and 4-25516.

In summary, the water treatment proposed in the RGP Application includes carbon filtration. The system will feature two aboveground settling tanks and dual six-bag particulate filters, with a flow meter and diffuser at the end of the effluent pipe. The EPA will issue a permit that describes sampling requirements and operational constraints. The EPA and the city will be provided with copies of all sampling results and discharge monitoring reports.

If you have any questions or require further information or clarification, please contact the undersigned at 781-404-1340.

Sincerely,

ATC Group Services LLC

Rachel Stevens Keith Sullivan Geologist/Project Manager Licensed Site Professional, #1259 500 Cummings Park, Suite Suite 3750 Woburn, MA 01801 Telephone 781-932-9400 Fax 781-932-6211 www.atcgroupservices.com

July 7, 2017

Lance Hill Superintendent Attleboro Public Works – Highway Division 77 Park Street Attleboro, Massachusetts 02703 [email protected]

Dear Mr. Hill,

If you have any questions or require further information or clarification, please contact the undersigned at 781-404-1340.

Sincerely,

ATC Group Services LLC

Rachel Stevens Keith Sullivan Geologist/Project Manager Licensed Site Professional, #1259