Laws & Regulations
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Providing Safe Drinking Water in America: 2022 National Public Water Systems Report
The National Public Water Systems Compliance Report summarizes and evaluates annual reports submitted by primacy agencies regarding compliance at public water systems (PWSs) of all types and sizes in the U.S.
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Legal Authority for CWA Analytical Methods
Summary of legal authority for EPA issuance of Clean Water Act analytical methods (40 CFR Part 136)
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Approved CWA Test Methods for Pharmaceutical Pollutants
Chemical test methods for pharmaecutical pollutants in water. Approved for use with effluent guidelines regulations for the Pharmaceutical Manufacturing Category (40 CFR Part 439).
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Approved Industry-Specific CWA Test Methods
Approved analytical methods for wastewater from specific industries: Pharmceutical Manufacturing (40 CFR Part 439); Pesticide Chemicals Manufacturing (40 CFR Part 455)
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Alternate Test Procedure Documents
Documents supporting the Clean Water Act ATP program, described at 40 CFR 136.4 and 136.5.
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Other Clean Water Act Test Methods: Microbiological
Microbiological test methods for ambient water, wastewater and groundwater; and related publications. These methods are not approved under 40 CFR Part 136.
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Clean Water Act (CWA) Compliance Monitoring
Overview of compliance monitoring activities under the the Clean Water Act.
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Non-Catalytic Woodstoves Installation, Operation, and Maintenance
Lists do's and don'ts for owners of non-catalytic wood stoves.
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Publications on Addressing Liability Concerns to Support Cleanup and Land Reuse Publications
Publications related to cleanup enforcement of brownfields and land revitalization
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Superfund Enforcement Publications
Provides access to Superfund Cleanup Enforcement publications
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Regulatory Determination 1 for Contaminants on the First Drinking Water Contaminant Candidate List
Learn about EPA's Regulatory Determination 1 for drinking water contaminants
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NEPA Review Form for the RTP Main Campus Laboratory Renovations
Review form for facility alteration or construction projects
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NEPA Review Form for the Edison Uninterruptible Power Supply and Emergency Generator
This document is a NEPA review form.
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NPDES Permit for Naval Magazine Indian Island in Washington
EPA's NPDES wastewater permit for the U.S. Navy Naval Magazine Indian Island (NAVMAG) near Port Hadlock, Washington.
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NPDES Permit for Puget Sound Naval Shipyard in Washington
EPA's NPDES wastewater permit for the Puget Sound Naval Shipyard in Bremerton, Washington.
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Vehicle Test Procedure Adjustments for Tier 3 Certification Test Fuel
Notice of Proposed Rulemaking NPRM for Technical Changes to Emissions Testing Protocols and Compliance Calculations for the Light-duty GHG Emissions Standards and Fuel Economy Standards
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Ultra-Low Sulfur Gasoline Emissions Study
Understanding the effects of gasoline sulfur level on the in-use fleet is important for assessing emissions inventories and impacts of future policy decisions. Test fuels were two non-ethanol gasolines with properties typical of certification fuel.
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Manufacturer-Run In-Use Testing Program Data for Heavy-Duty Diesel Engines – Test Order Year 2014
This page provides manufacturer-run in-use testing program data from heavy-duty diesel engine manufacturers in compliance with 40 CFR 86 Subpart T for Test Year 2014.
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Manufacturer-Run In-Use Testing Program Data for Heavy-Duty Diesel Engines – Test Order Year 2013
This page provides manufacturer-run in-use testing program data from heavy-duty diesel engine manufacturers in compliance with 40 CFR 86 Subpart T for Test Year 2013.