Laws & Regulations

Templates for Developing Wetland Water Quality Standards

These templates are a tool to simplify development of protective wetland water quality standards.

Use Attainability Analysis and the Use Revision Process

This interactive diagram can help states and authorized tribes establish or revise designated uses by addressing the steps and questions they should consider while conducting a Use Attainability Analysis (UAA).

Reports OIG

Audit and Evaluation Reports issued by the Office of General.

EPA's Office of Inspector General

The Office of Inspector General is an independent office within EPA that helps the agency protect the environment in a more efficient and cost effective manner.

Memo and Technical Addendum on Ambient Data Usage and Completeness for the Regional Haze Program

This document includes recommendations on ambient data completeness criteria for the Regional Haze program, specifically IMPROVE ambient data calculations for the second implementation period.

Report: Independent Audit of the EPA’s Fiscal Years 2024 and 2023 Pesticides Reregistration and Expedited Processing Fund Financial Statements

DOJ Press Release: Former Managers of Waste Pre-Treatment Facility Plead Guilty to Illegally Discharging Waste into Nashville Sewer System

News and Features

Air Emission Measurement Center (EMC)

This site provides technical information on test methods for measuring pollutants from smokestacks and other industrial sources.

Impaired Waters and TMDLs in Region 5

A collection of resources and contacts for the EPA Region 5 Total Maximum Daily Load program

Region 9 CWA Water Pollution Control Presentations: WQX Workshop (August 2010)

Presentations from past workshops and webinars held by or in conjunction with the Water Tribal Office and its presentations from RTOC Water Quality breakout sessions.

Current Texas SIP-Approved Regulations

2008 STORET/WQX Workshop for Tribes Presentations

STORET/WQX Workshop for Tribes (Workshop dates: November 18-19, 2008): Presentations and webinars

EPA’s Registered Antimicrobial Products for Medical Waste Treatment [List J]

List J: EPA’s Registered Antimicrobial Products for Medical Waste Treatment

Operating Permit Timeline for Oklahoma

Part 70 Title V Operating Permit Timeline for Oklahoma

Texas SIP: 30 TAC 117.10: Control of Air Pollution From Nitrogen Compounds Definitions

Texas SIP: 30 TAC 117.10

EPA Announces $10.5 Million for Tennessee to Address PFAS in Drinking Water

U.S. Environmental Protection Agency (EPA) has announced $10,528,000 in new Emerging Contaminants in Small or Disadvantaged Communities (EC-SDC) grant funding to address PFAS and emerging contaminants in Tennessee communities that need it most.

Release Date: May 19, 2026

EPA Announces $9.8 Million for South Carolina to Address PFAS in Drinking Water

U.S. Environmental Protection Agency (EPA) has announced $9,829,000 million in new Emerging Contaminants in Small or Disadvantaged Communities (EC-SDC) grant funding to address PFAS and emerging contaminants in South Carolina communities that need it most.

Release Date: May 19, 2026

EPA Announces $30.1 Million for North Carolina to Address PFAS in Drinking Water

U.S. Environmental Protection Agency (EPA) has announced $30,118,000 in new Emerging Contaminants in Small or Disadvantaged Communities (EC-SDC) grant funding to address PFAS and emerging contaminants in North Carolina communities that need it most.

Release Date: May 19, 2026

EPA Announces $10.1 Million for Mississippi to Address PFAS in Drinking Water

U.S. Environmental Protection Agency (EPA) has announced $10,182,000 million in new Emerging Contaminants in Small or Disadvantaged Communities (EC-SDC) grant funding to address PFAS and emerging contaminants in Mississippi communities that need it most.

Release Date: May 19, 2026