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Federal Register / Vol. 86, No. 50 / Wednesday, March 17, 2021 / Proposed Rules from EPAs Region 3, looking for potential PFAS sources in Goose Creek, Pennsylvania. From this report, EPA
was able to identify another likely PFAS
formulator. See DCN OCPSF00038 for report and communications.

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V. Request for Further Information on PFAS Manufacturers and Formulators A. PFAS Manufacturers EPA has identified six facilities Alabama, North Carolina, West Virginia, New Jersey, Illinois in the United States that currently manufacture PFAS compounds and have an associated wastewater discharge.
Throughout the course of EPAs PFAS
Multi-Industry Study, the Agency worked collaboratively with stakeholders to obtain information regarding facilities that manufacture and formulate fluorochemicals in the United States. EPA appreciates the information that these entities have provided to the Agency to date.5 This information has greatly increased the Agencys understanding of current manufacturing facilities, their operations, their production of fluorochemicals, their wastewater generation activities, and their wastewater treatment activities.
After reviewing the information received to date, EPA is inviting stakeholders to review this information and provide comment and is seeking additional information and data to inform EPAs next steps.
Specifically, EPA is requesting the following information and data regarding PFAS manufacturers:
1. The identity of or suggestions for how to identify any other facilities in the United States currently manufacturing PFAS.
2. Descriptions of the manufacturing processes being employed at PFAS
manufacturing facilities, including process flow diagrams.
3. Information and data on the specific PFAS compounds that are currently being produced including as byproducts at these facilities including the product name, CAS number and class of each compound, the quantities that are being produced, the customers or industries that are purchasing these materials, and the quantities of materials sold to various customers. For sales, EPA is also interested in knowing the quantities of PFAS compounds that are exported outside of the United States.
4. Identification of the wastewater streams at manufacturing facilities that contain PFAS e.g., process wastewater, 5 These data and information are contained in the docket supporting this notice.

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cooling water, contaminated stormwater, wastewater from aqueous scrubbers or air pollution control equipment, off-specification products, equipment cleaning wastewater, spills and leaks, their volumes, characteristics, the identity including CAS Number, and concentrations of PFAS compounds in those individual waste streams.
5. Information and data on the current wastewater treatment and management practices including pollution prevention and product recovery practices being utilized at existing PFAS manufacturers. Specific information requested includes descriptions of the treatment technologies, their size and flow rate, process flow diagrams, capital and operation and maintenance costs, treatment chemical utilization, and residuals generation and management. If wastewater storage ponds are used to hold PFAS wastewater, EPA also requests a description of the ponds, including purpose, age, capacity, design, wastewater characteristics, whether they are lined or unlined, and whether they have discharge outfalls.
6. If manufacturers are not treating PFAS containing wastewater onsite, EPA is requesting information on the management or disposal practices being utilized e.g., zero liquid discharge, disposal wells, transfer to off-site centralized waste treatment facilities or transfer to POTWs, the volumes of wastewaters being managed via different practices, the name and location of the facilities receiving wastewaters, and their associated costs.
7. Information and data on future planned process changes at existing PFAS manufacturing facilities, any plans to change or phase-out manufacture of specific fluorinated compounds or to increase or decrease production of specific compounds, and any planned major upgrades to existing manufacturing facilities or construction of new PFAS manufacturing facilities in the United States. EPA is also requesting information regarding any potential changes in PFAS manufacturing processes, pollution prevention practices or chemicals used as PFAS
substitution, or use and cost of specific technologies that can reduce the quantity of PFAS in wastewater from PFAS manufacturing operations.
8. EPA has collected existing publicly available DMR data and monitoring data from known manufacturers, as well as data from TRI and CDR databases, as indicated in the docket. These DMRs contain data on only a subset of the total PFAS that are potentially present in discharges from these facilities. EPA

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requests additional monitoring data see DCN OCPSF00115 for suggested data format and fields on PFAS compounds in wastewater discharges from PFAS
manufacturing facilities. Since there is currently no CWA-approved analytical method promulgated for analysis of PFAS compounds in wastewater, EPA
requests that monitoring data that is submitted include information on the analytical methods used as well as associated information and data that can be used by EPA to determine the quality of the data. EPA also requests comment on whether additional PFAS
compounds or precursors that are not reported in DMRs are found in wastewater discharges from these facilities, and the quantities of such PFAS compounds, precursors, and other organofluoride compounds found in untreated and treated wastewaters from these facilities. In addition to data on individual compounds, EPA is also particularly interested in data that would provide the total quantity of organofluorides present, such as would be provided by a Total Organic Fluorine TOF analysis or other assays.
9. In addition to treatment technologies being used at the six known PFAS manufacturing facilities, EPA is requesting additional information and data regarding treatment and destruction technologies for PFAS in industrial wastewater, including data on their performance, costs both capital and operation and maintenance, and the types, quantities and management practices for any treatment residuals that are generated.
Data from laboratory, bench, pilot, and full-scale facilities are requested. EPA
also requests comment on the 15
treatment technology articles included in the docket.
10. Analytical methodologies used to monitor wastewater at PFAS
manufacturing facilities, including in house SOPs and method performance data, including lists of specific PFAS
compounds being monitored, and any aggregate procedures e.g., adsorbable or extractable organic fluorine by combustion ion chromatography.
11. Any studies that have been conducted concerning environmental or human health impacts e.g., toxicity, risk, fate and transfer, cross media of PFAS discharges from PFAS
manufacturers.
B. PFAS Formulators EPA has identified limited publicly available information regarding the universe of PFAS formulators. To date, EPA has identified ten facilities in Ohio, Virginia, Michigan, Minnesota, Pennsylvania and New Jersey that are
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