ENVIRONMENTAL CONSULTING & MANAGEMENT ROUX ASSOCIATES, INC. 12 GILL STREET, SUITE 4700 WOBURN, MASSACHUSETTS 01801 TEL 781-569-4000 FAX 781-569-4001 July 7, 2017 U.S. Environmental Protection Agency 5 Post Office Square, Suite 100 Mail Code OEP06-4 Boston, Massachusetts 02109-3912 Re: Notice of Intent for 2016 Remediation General Permit BASF Corporation 36 Taunton Street, Plainville, Massachusetts Remediation General Permit No. MAG910016 To Whom It May Concern: On behalf of BASF Corporation (BASF), Roux Associates Inc. (Roux Associates) respectfully submits this National Pollution Discharge Elimination System (NPDES) Remediation General Permit (RGP) Notice of Intent (NOI) for continued coverage of discharges associated with remedial activities being conducted at the BASF Corporation facility (formerly known as Engelhard Corporation and BASF Catalysts, LLC) located at 36 Taunton Street in Plainville, Massachusetts (the Site).1 Remedial activities being conducted at the Site are being performed in accordance with applicable United States Environmental Protection Agency (EPA) requirements. BASF is required by an Administrative Consent Order with USEPA to perform these activities as a Groundwater Stabilization Measure. The system has been in operation under several General Permits and in compliance from 1998 to present. Currently, remedial activities include the operation of a groundwater pump and treat system, which involves the extraction of impacted groundwater from six on-Site extraction wells to remove volatile organic compounds (VOCs) and certain metals. Groundwater treatment consists of metals and sludge removal systems, an air stripper, bag filters, and activated liquid-phase carbon. Air stripper off-gas is treated with activated vapor-phase carbon. Treated groundwater is discharged to Turnpike Lake (see Figures 1 and 2 attached). This discharge was previously covered under RGP number MAG910016, which expired on September 9, 2015. The system discharge has continued after expiration of the 2010 RGP in accordance with EPA’s administrative continuance of coverage under the 2010 RGP. Roux Associates is submitting this NOI for coverage under the 2016 RGP in order to continue the existing system discharge. The following information is attached in support of this NOI: 1. Suggested Form for Notice of Intent (NOI) for the Remediation General Permit; 1 The Site has historically also used the addresses 30 and 32 Taunton Street. 0251.0020M015.101/NOI ATTACHMENTS ATTACHMENT 1 Remediation Permit Notice of Intent ROUX ASSOCIATES, INC. 0251.0020M015.101/AT-CV 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: 36 Taunton Street BASF Plainville Street: City: Plainville State: MAZip: 02762 2. Site owner Contact Person: Ed Vanyo BASF Corporation Telephone: 215-740-0886 Email: [email protected] Mailing address: 100 Park Avenue Street: Owner is (check one): □ Federal □ State/Tribal □■ Private City: State: Zip: □ Other; if so, specify: Florham Park NJ 07932 3. Site operator, if different than owner Contact Person: Meghan Proia Groundwater & Environmental Services, Inc. (GES) Telephone: 800-220-6119, ext 3589 Email: [email protected] Mailing address: 364 Littleton Road, Suite 4 Street: City: Westford State: MAZip: 01886 4. NPDES permit number assigned by EPA: 5. Other regulatory program(s) that apply to the site (check all that apply): MAG910016 □ 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): Turnpike Lake MAG62198 A 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: Turnpike Lake is identified as a Public Water Supply 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. Not Listed 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. 0.063 cfs 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. 1.0 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: Receiving water is a lake. Dilution factor was not granted. 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: Chlorinated volatile organic compounds and certain metals 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) Groundwater treatment plant effluent discharge 42° 01' 0.92" N 71°18' 39.50" W 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: Not Applicable 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): Start: Existing; to begin under this permit 07/2017. End: 07/2022 under this permit. 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.