Learn the Issues
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Historical Water Quality Criteria Documents
Reference Documents from the 1980s
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Common Effects Methodology National Stakeholder Meeting December 1, 2010
EPA is exploring how to build on the substantial high quality science developed under both OPP programs to develop additional tools and approaches to support a consistent and common set of effects characterization methods using best available information.
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Reference Library of Water Quality Criteria
Information related to Water Quality Criteria Reference Library
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Common Effects Methodology Regional Stakeholder Meeting January 11 -22, 2010
EPA is exploring how to build on the substantial high quality science developed under both OPP programs to develop additional tools and approaches to support a consistent and common set of effects characterization methods using best available information.
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Fact Sheet: Estuarine and Coastal Marine Waters - Bioassessment and Biocriteria Technical Guidance
Fact Sheet: Estuarine and Coastal Marine Waters: Bioassessment and Biocriteria Technical Guidance
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Final Recommended Aquatic Life Ambient Water Quality Criteria for Diazinon
Information related to Final Recommended Aquatic Life Ambient Water Quality Criteria for Diazinon.
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Gaten Properties, LLC - Clean Water Act Public Notice
The EPA is providing notice of a proposed Administrative Penalty Assessment against Gaten Properties, LLC, a business located at 10823 W. 164th Street, Overland Park, Kansas 66221, for alleged violations at Triple Creek Farms located 175th Street and Antio
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Linwood Mining and Minerals Corporation - Clean Water Act Public Notice
The EPA is providing notice of a proposed Administrative Penalty Assessment against Linwood Mining and Minerals Corporation, for alleged violations at its limestone mining processing facility located in 401 E. Front Street, Davenport, Iowa, 52804.
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Assessment
Ambient Water Monitoring and Assessment - Assessment
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Real Estate Disclosures about Potential Lead Hazards
Information for homebuyers, renters, property managers, landlords, real estate agents and home sellers about the Lead-Based Paint Disclosure Rule.
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Requirements for Municipal Solid Waste Landfills (MSWLFs)
this page describes some of the technical requirements for municipal solid waste landfills.
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Learn About the Toxic Substances Control Act (TSCA)
This page provides an overview of TSCA authorities as well as specific sections of TSCA.
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PWS Inventory Change Form Guidance
Lead and Copper Sample Site Tiering and Tap Sample Site Plan Presentation given by Bolor Bertelmann at the WARWS 2024 conference held in Casper in the spring of 2024.
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J.H. Baxter Superfund Site in Oregon
Information about EPA's contamination and cleanup investigation at the J.H. Baxter & Co. wood treating facility in Eugene, Oregon.
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Greenhouse Gas Reporting Program Requirements for Importers and Exporters
The EPA Greenhouse Gas Reporting Program (GHGRP) requires annual reporting of greenhouse gas (GHG) data and other relevant information from large sources and suppliers in the United States.
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EPA’s Recommended Ambient Water Quality Criteria for Nutrients
EPA’s Recommended Ambient Water Quality Criteria for Nutrients
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National Emission Standards for Aerospace Manufacturing and Rework Facilities (Subpart GG) - Guidance Document
National Emission Standards for Aerospace Manufacturing and Rework Facilities (Subpart GG) - Guidance Document
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Ruby Mines
Information about the progress of EPA's cleanup at Ruby Mines #1-4, including health impacts, major enforcement and removal milestones, and community actions.
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Table of Comparison of 2012 CDR v 2006 IUR Definitions
In forming 40 CFR 711, EPA sought to simplify the definition section and remove unnecessary duplication of regulatory terms. This table is a comparison of 2006 IUR Definitions and 2012 CDR Definitions.
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EPA's Work to Understand Background Levels of Ethylene Oxide
EPA is investigating how much “background” ethylene oxide is in the outdoor air. The document can help you learn more about the Agency’s work on this issue.