Laws & Regulations

Other Clean Water Act Test Methods: Chemical

Methods for analysis of chemical pollutants in wastewater. These methods are not approved under 40 CFR Part 136, but may be of interest to regulated entities, permitting authorities and the public.

PCS-ICIS Customized Search User Guide

The Permit Compliance System (PCS) provides information on companies which have been issued permits to discharge waste water into rivers.

Water Enforcement

EPA enforces requirements under the Clean Water Act (CWA) and Safe Drinking Water Act (SDWA).

CWA-09-2025-0119: Engineering/Remediation Resources Group Inc., Martinez, CA; Consent Agreement and Final Order

Consent agreement and final order in the matter of Engineering/Remediation Resources Group, Inc. (Respondent) for violations of the Clean Water Act (CWA) at its facility in the Village of Aua, on the island of Tutuila in American Samoa.

Arkansas SIP: Reg 19, Chap 10: Regulations for the Control of Volatile Organic Compounds in Pulaski County, SIP effective November 22, 2023 (ARd42) to January 28, 2024

AR SIP: Reg 19, Chap 10: Regulations for the Control of Volatile Organic Compounds in Pulaski County

Texas SIP: 30 TAC 117.451-117.458: Nitric Acid Manufacturing - General; SIP effective 2000.04.03

Texas SIP: 30 TAC 117.570. Trading; SIP effective 2000.04.03

Texas SIP: 30 TAC 117.520. Compliance Schedule For Commercial, Institutional, and Industrial Combustion Sources; SIP effective 2000.10.31

Texas SIP: 30 TAC 117.540. Phased Reasonably Available Control Technology (RACT); SIP effective 2000.04.03

Notices of Intent Archive: Dewatering General Permit (DGP) for Massachusetts & New Hampshire

Notices of Intent Archive for the Dewatering General Permit (DGP) in Massachusetts and New Hampshire

Minor NSR Basic Information

Provides basic information about the minor New Source Review permitting programs

Nitrogen Dioxide (NO2) and Sulfur Dioxide (SO2) Secondary Standards - Federal Register Notices from Current Review

Federal Register notices used to review and develop a new Nitrogen Dioxide (NO2) and Sulfur Dioxide (SO2) secondary standards.

Setting and Reviewing Standards to Control Lead (Pb) Pollution

Lead (Pb) standards are part of the National Ambient Air Quality Standards (NAAQS), which limit air pollution to protect health and the environment. Standards are periodically reviewed and updated, and air quality across the U.S. is measured against them.

Setting and Reviewing Standards to Control NO2 Pollution

EPA sets National Ambient Air Quality Standards (NAAQS) for NO2 to protect public health (primary standard) and to protect public welfare (secondary standard). The Clean Air Act also requires EPA to periodically review and revise them if appropriate.

Setting and Reviewing Standards to Control Carbon Monoxide (CO) Pollution in Outdoor Air

EPA sets National Ambient Air Quality Standards (NAAQS) for CO to protect public health and to protect public welfare. The Clean Air Act also requires EPA to periodically review and revise them if appropriate.

Setting and Reviewing Standards to Control SO2 Pollution

EPA sets National Ambient Air Quality Standards (NAAQS) for SO2 to protect public health (primary standard) and to protect public welfare (secondary standard). The Clean Air Act also requires EPA to periodically review and revise them if appropriate.

Setting and Reviewing Standards to Control Particulate Matter (PM) Pollution

The Clean Air Act requires EPA to set national air quality standards for particulate matter, and to periodically review the standards to ensure that they provide adequate health and environmental protection, updating those standards as necessary.

Responses to Public Comments on EPA’s Standards of Performance for Municipal Solid Waste Landfills and Emission Guidelines and Compliance Times for Municipal Solid Waste Landfills: Proposed Rules - July 2016

Responses to Public Comments on EPA’s Standards of Performance for Municipal Solid Waste Landfills and Emission Guidelines and Compliance Times for Municipal Solid Waste Landfills: Proposed Rules - July 2016

PCE Former Dry Cleaner Superfund Site, Atlantic, Cass County, Iowa - Fact Sheet, November 2020

Record of Decision Signed

Syntex Facility National Priorities List (NPL) Superfund Site, Verona, Lawrence County, Missouri - Supplemental Information, December 2020

Addendum to Site Update – Completion of Private Well Testing