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Source: https://www.epa.gov/eg/organic-chemicals-plastics-and-synthetic-fibers-effluent-guidelines

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Organic Chemicals, Plastics and Synthetic Fibers Effluent Guidelines

Photo of chemical plant The EPA promulgated the Organic Chemicals, Plastics and Synthetic Fibers (OCPSF) Effluent Guidelines and Standards (40 CFR Part 414Exit EPA’s website) in 1987, and amended the regulation in 1989, 1990, 1992, and 1993. The regulation covers wastewater discharges from more than 1,000 chemical facilities. The OCPSF Effluent Guidelines and Standards are incorporated into NPDES permits for direct dischargersdirect dischargersA point source that discharges pollutants to waters of the United States, such as streams, lakes, or oceans., and permits or other control mechanisms for indirect dischargersindirect dischargersA facility that discharges pollutants to a publicly owned treatment works (municipal sewage treatment plant). (refer to Pretreatment Program). On this page: * What is OCPSF? * Facilities covered * PFAS Advance Notice of Proposed Rulemaking * Chlorine and Chlorinated Hydrocarbon Manufacturing * Preliminary Study of Cellulose Product Manufacturing * Guidance document * Rulemaking history * Additional information

What is OCPSF?

The OCPSF category includes more than 1,000 chemical facilities producing over 25,000 end products, such as benzene, toluene, polypropylene, polyvinyl chloride, chlorinated solvents, rubber precursors, rayon, nylon, and polyester. The OCPSF industry is large and diverse, and many plants are highly complex. Some plants produce chemicals in large volumes through continuous chemical processes, while others produce only small volumes of "specialty" chemicals through batch chemical processes.

Facilities Covered

Related Information * Stormwater fact sheet (Sector C: Chemical and Allied Products Manufacturing and Refining)

The OCPSF regulation applies to process wastewater discharges resulting from the manufacture of the products or product groups listed in the rayon fibers, other fibers, thermoplastic resins, thermosetting resins, commodity organic chemicals, bulk organic chemicals, and specialty organic chemicals subcategories. The products are included within the following SIC groups: * 2821: Plastic Materials, Synthetic Resins, and Nonvulcanizable Elastomers * 2823: Cellulosic Man-Made Fibers * 2824: Synthetic Organic Fibers, Except Cellulosic * 2865: Cyclic Crudes and Intermediates, Dyes, and Organic Pigments * 2869: Industrial Organic Chemicals, Not Elsewhere Classified.

Note: This SIC listing is provided as a guide and does not define the coverage of the OCPSF regulations. For precise definitions of coverage, refer to the applicability sections in 40 CFR Part 414Exit EPA’s website.

Subcategories

PFAS Advance Notice of Proposed Rulemaking

In February 2019, the EPA announced in the Per- and polyfluoroalkyl substances (PFAS) Action Plan that the Agency was taking steps to evaluate if industrial sources warranted regulation to address PFAS discharges. After studying the available data regarding wastewater discharges from facilities that manufacture PFAS, the EPA is publishing an advance notice of proposed rulemaking (ANPRM) to solicit data and information regarding manufacturers of PFAS and the presence and treatment of PFAS in discharges from this industrial category. The EPA is also requesting information regarding PFAS formulators, which are facilities that produce a variety of PFAS products and materials from PFAS feedstocks. Both PFAS manufacturers and formulators are currently regulated under the OCPSF category. The EPA will use any data and information obtained via public comment on the ANPRM to inform its decision about whether a proposed rulemaking may be necessary. * ANPRM Federal Register NoticeExit EPA’s website (March 17, 2021)
(On March 10, 2021, the EPA re-signed the Advance Notice of Proposed Rulemaking for PFAS Manufacturers and Formulators) * User Guide to the Docket for the ANPRM (March 2021)

Chlorine and Chlorinated Hydrocarbon Manufacturing

The EPA began a new rulemaking in 2005 to address wastewater discharges from facilities that manufacture chlorine and certain chlorinated hydrocarbons (CCH). The Agency collected data on CCH facilities through 2007, and, following a review of the information, it discontinued the rulemaking in 2012. * CCH Facilities - Additional Information

Preliminary Study of Cellulose Product Manufacturing - 2011

The EPA conducted a study of regenerated cellulose manufacturers, focusing on discharges of carbon disulfide (CS 2). Cellulose products manufacturers use CS2 in the viscose process to break down aged alkali cellulose prior to regeneration. CS2 can enter the wastewater stream at these facilities from CS2 unloading and storage, the viscose process, CS2 recovery, and/or air pollution controls. Current effluent guidelines do not cover CS2 discharges. * Preliminary Study of Carbon Disulfide Discharges from Cellulose Products Manufacturers (December 2011)

Guidance Document

Rulemaking History

1993 Amendment

1992 Amendment

1990 Amendment

Revoked selected portions of the regulations pursuant to litigation * Documents, including: * Final Rule (June 29, 1990)

1989 Amendment

Technical amendments and revocation of selected portions of the regulations * Documents, including: * Final Rule (June 27, 1989)

1987 Rulemaking

The OCPSF category replaced the Organics Chemicals Category and the Plastics and Synthetic Fibers Category. The latter two categories had been promulgated in 1974-76 and then withdrawn pursuant to litigation. * Documents, including: * Final Rule (November 5, 1987) * Development Document
Describes industry processes, pollutants generated, available control and treatment technologies, the technical basis for the final rule, and costs of the rule * Proposed Rule (March 21, 1983)

Additional Information

For additional information regarding the OCPSF Effluent Guidelines, please contact Samantha Lewis (lewis.samantha@epa.gov) or 202-566-1058.

Effluent Guidelines

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