United States
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Oil and Grease Measurements - Frequent Questions
Questions regarding use of EPA method 1664A for measurement of oil and grease in water
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Effluent Guidelines Plan Support Documents
Miscellaneous support documents for Effluent Guidelines Plan
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Cyanide Measurements: Questions and Answers
Questions and answers about cyanide measurements in Clean Water Act analytical methods (40 CFR Part 136).
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Methods Update Rule Support Documents
Supporting documents for Methods Update Rules (Final May 2021; Final - August 2017); amendments to 40 CFR Part 136
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Other Clean Water Act Test Methods: Biosolids
Methods for analysis of chemical pollutants in biosolids (municipal sewage sludge). These methods are not approved under 40 CFR Part 136, but may be of interest to regulated entities, permitting authorities and the public.
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2016 Effluent Guidelines Plan Documents
Supporting documentation for EPA's Effluent Guidelines Plan
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Aluminum Forming Effluent Guidelines Documents
Support documents for Aluminum Forming Effluent Guidelines regulations
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Soap and Detergent Manufacturing Effluent Guidelines Documents
Support documents for Soap and Detergent Manufacturing Effluent Guidelines regulations (40 CFR Part 417)
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Ferroalloy Manufacturing Effluent Guidelines Documents
Support documents for Ferroalloy Manufacturing Effluent Guidelines and Standards
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Steam Electric Power Generating Effluent Guidelines - 2024 Final Rule
Final rule and support documents for the Steam Electric Power Generating category (40 CFR Part 423).
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Applicability of NSR Requirements to the Henkel Corporation
This document is part of the Title V Policy and Guidance Database.
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Applicability of EPA's PSD Regulations to Floating Seafood Processors
This document is part of the Title V Policy and Guidance Database.
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American Soda.. Multi-facility Source Determination
This document is part of the Title V Policy and Guidance Database.
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Accounting for Emergency Generators in the Estimate of Potential to Emit
This document is part of the Title V Policy and Guidance Database.
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No Permit Needed for Emergency-Related Open Burning on Tribal Lands
This document is part of the NSR Policy and Guidance Database.
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Dec. 19, 1980 Ambient Air Letter
This document is part of the NSR Policy and Guidance Database
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Comments on Proposed Amendments to Chapter 106, 116 for Maintenance, Startup and Shutdown (MSS) Chapter 106, Subchapter K
This document is part of the NSR Policy and Guidance Database
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CIMC - Map Hints and How Tos
This page contains map help for the Cleanups in My Community web application.
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What Waters are Included in the National Aquatic Resource Surveys?
Each of the National Aquatic Resource Surveys (NARS) focuses on a specific water resource type - coastal, lakes, rivers & streams and wetlands.
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EPA Approves the First Ever Good Samaritan Program Permit for Clean Up at the Bodie Mine Site
EPA is committed to effectively accelerating mining site cleanups across the western United States
Today, U.S. Environmental Protection Agency (EPA) approved the first ever Good Samaritan remediation permit for Trout Unlimited Inc. to address contamination at the Bodie Mine site in Wauconda Mining District, Okanogan County, Washington.