Laws & Regulations

Consumer Confidence Report Rule and Rule History for Water Systems

Official Consumer Confidence Report (CCF) rule documentation and history of CCR

Reissuance of EPA Dewey-Burdock Class III and Class V Injection Well Area Permits (March 14, 2025)

Class III and Class V Final Permits

EPA Dewey-Burdock Class III and Class V Injection Well Final Area Permits and Aquifer Exemption

Final UIC Class III and Class V Permits related to the Dewey-Burdock UIC project

Methods Update Rules

Descriptions of Methods Update Rules; revisions to Clean Water Act analytical methods that are codified at 40 CFR Part 136.

Frequent Questions about PFAS Methods for NPDES Permits

Frequent questions about analytical methods to detect the presence of PFAS compounds applicable to NPDES permits

CWA Analytical Methods for Per- and Polyfluorinated Alkyl Substances (PFAS)

Description of current joint effort between EPA and the Department of Defense to develop analytical methods to detect the presence of PFAS compounds in various environmental media.

Recreational Vessels and the Clean Boating Act

Homepage for content on the Clean Boating Act, which requires the EPA to develop best management practices for discharges from recreational vessels. The page links to information about the Clean Water Act amendment, its history and public participation.

Comments from State of Colorado - Draft Munitions and Explosives of Concern Hazard Assessment Guidance Document - Comment Form

Comments from the State of Colorado, along with EPA's responses.

MEC HA Framework Option Paper #3

This paper presents recommendations for input factors to be included in the MEC HA framework.

Hazard Assessment (HA) for Munitions and Explosives of Concern (MEC) Concept Paper

This paper provides an update on a working group’s efforts to develop a site-specific MEC HA methodology and guidance.

Hazard Assessment (HA) for Munitions and Explosives of Concern (MEC): Workgroup Briefing Book - Table of Contents

List of issue papers and background materials

Munitions and Explosives of Concern Hazard Assessment (MEC HA) Initiative

Slides from a briefing about the MEC HA purpose, participants, progress, and process.

Munitions and Explosives of Concern Hazard Assessment (MEC HA)

Fact sheet describing the background, purpose, and progress of the MEC HA.

Hazard Assessment for Munitions and Explosives of Concern Workgroup Meeting - July 29-30, 2004

Minutes from the meeting held on July 29-30, 2004.

Effectively Implementing TMDLs

An overview of effectively implementing TMDLs

TMDL Support Documents

A collection of TMDL information and support documents.

Reports and Resources about Impaired Waters and TMDLs

A collection of reports and resources for each step in the impaired waters restoration pipeline.