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Home My WebLink AboutNC0047384_Pretreatment_EC_Letter_20221117DocuSign Envelope ID: 806A9E0E-C18B-4FC9-BOCF-92E7DBA11247 ROY COOPER Governor ELIZABETH S. BISER Secretary RICHARD E. ROGERS, JR. Director NORTH CAROLINA Environmental Quality November 17, 2022 Via Electronic Mail (Amy.Varinoski@geensboro-nc.gov) Ms. Amy Varinoski Utilities Pretreatment Coordinator City of Greensboro Depai intent of Water Resources P.O. Box 3136 Greensboro, NC 27402-3136 Subject: New Significant Industrial User (Pretreatment) Permit Applications City of Greensboro T.Z. Osborne WRF, NPDES # NC0047384, Guilford County Dear Ms. Varinoski: The Division of Water Resources (DWR) is working to identify sources of PFAS to protect water quality and drinking water supplies. To that end and in light of the recent EPA interim Drinking Water Health Advisory information on PFAS, DWR expects that all local pretreatment programs will conduct an emerging contaminant (EC) screening for new Significant Industrial Users (SIU) permits, including for Toyota's pending application. DWR expects clear information regarding the presence of EC in new SIUs' wastewater, sludge, and solids. An approved local pretreatment program (Control Authority) has the primary responsibility for reviewing SIU applications and issuing SIU permits. In DWR's oversight role of local pretreatment programs, DWR expects Control Authorities to conduct the following EC screening process for new SIU permits: • Provide the attached "New SIU Permit Application PFAS Screening Questionnaire" in SIU permit application materials to applicants; • As required by 15A NCAC 02H .0917(a), continue to submit new SIU draft permits to DWR thirty (30) days prior to the permits effective date; • When the Control Authority submits a draft SIU permit for a new industry to DWR for review, include: 1. the completed "New SIU Permit Application PFAS Screening Questionnaire", 2. an EC Baseline Monitoring Plan prepared by the POTW based on the response above, 3. a draft SIU permit that includes a requirement that the SIU implement the EC Baseline Monitoring Plan. NORTH CARntnt Environmental NA oeperereM m �mnmentai ou.nry North Carolina Department of Environmental Quality I Division of Water Resources 512 North Salisbury Street 11611 Mail Service Center I Raleigh, North Carolina 27699-1611 919.707.9000 DocuSign Envelope ID: 806A9E0E-C18B-4FC9-BOCF-92E7DBA11247 Federal and State pretreatment regulations require the Control Authority to effectively control and document the discharge of wastewater from Significant/Categorical Industrial Users. It is the Control Authority's responsibility to ensure that these objectives are consistently met. If you have any questions or comments, please contact Keyes McGee at (919) 707-3626 [email: keyes.mcgee@ncdenr.gov]. Thank you for your continued support of the Pretreatment Program. Ec: Elijah Williams, PE, GDWR Alicia Goots, GDWR Jim Gonsiewski, WSRO Municipal Unit File Central Files (Laserfische) NORTH CAROLINA o�mm�Mm .��l o�.i�ksw, /� Sincerely, DocuSigned by: C464531431644FE... Michael J. Montebello NPDES Branch Chief Division of Water Resources North Carolina Department of Environmental Quality I Division of Water Resources 512 North Salisbury Street 11611 Mail Service Center I Raleigh, North Carolina 27699-1611 919.707.9000 DocuSign Envelope ID: 806A9E0E-C18B-4FC9-BOCF-92E7DBA11247 NEW SIU PERMIT APPLICATION PFAS SCREENING QUESTIONNAIRE: 1. Do you use any material or products (directly or indirectly) in your operations that contain fluorinated chemicals? If so, please identify what materials or products contain fluorinated chemicals. 2. Will your facility formulate or create products (directly or indirectly) which contain fluorinated chemicals? If so, please identify the specific fluorinated chemicals that may be formulated or created. 3. Will your facility produce solid waste, liquid waste, wastewater effluent, or other waste containing fluorinated chemicals? Please be as specific as possible to describe what fluorinated chemicals may result in the facility's wastewater, solid waste, or sludge. 4. Are there processes or operations that use equipment, material, or components that contain PFAS chemicals (e.g., surface coating, clean room applications, solvents, lubricants, fittings, tubing, processing tools, packaging, facility infrastructure)? Could these activities result in fluorinated chemicals being discharged as products, or by- products (i.e., through leaching, chemical process, heat treatment, pressurization, etc.)? 5. List CAS numbers of all known or believed present fluorinated compounds from the questions above. Please provide descriptions, quantities, and whether there are any unknowns related to the above questions. 6. Are there other facilities or operations in the U.S. or internationally that are identical to or may use processes similar to the project in North Carolina? If so, please provide facility identification information and wastewater characterization including all PFAS compounds? 7. Additionally, have any PFAS analytical results been collected with any analytical test method similar to the following EPA Test Methods. Are any of the fluorinated compounds listed in one of the following methods and can you provide us with data resulting from these test methods? • Methods 533 & 537.1 (drinking water) • SW-846: Method 8327 (water) • Draft Method 1633 (water, solids, tissue) • "Total PFAS" Draft Method 1621 (wastewater) 1:)..E NORTH CAROLINA o�mm�Mm.��I o�.iN /� North Carolina Department of Environmental Quality I Division of Water Resources 512 North Salisbury Street 11611 Mail Service Center I Raleigh, North Carolina 27699-1611 919.707.9000