United States
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EPA's Response to Eastman Chemical Company's Request that EPA Reconsider Prior Source Determinations
This document is part of the NSR Policy and Guidance Database and the Ttile V Policy and Guidance Database.
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2019 Order Denying a Petition for Objection to Title V Operating Permit for Cargill
This document is part of the title V petition database.
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2019 Order Denying in a Petition for Object to Title V Operating Permit for PNG Wadesboro
This document is part of the title V petition database.
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Geospatial Resources at EPA
EPA's National Geospatial Program coordinates the Agency's geospatial data, applications, policies and programs. This website provides an overview of EPA’s geospatial resources
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2020 Petition Requesting the Administrator Object to Title V Permit for Northampton
This document is part of the title V petition database.
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Chronic Toxicity - Freshwater WET Methods
Whole effluent toxicity (WET) methods for testing chronic toxicity in freshwater organisms after exposure to wastewater.
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Procedures for Detection and Quantitation - Documents
Documents pertaining to method detection limit (MDL) and quantitation procedures for CWA Analytical Methods
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Procedures for Detection and Quantitation
Documents produced by a Federal Advistory Committee on detection and quantitation procedures, that operated during 2005 to 2007.
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Alternate Test Procedures: Questions and Answers
Frequent questions about alternate test procedures for Clean Water Act analytical methods and the approval process
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Approved CWA Test Methods for Pesticide Active Ingredients
Chemical test methods for pesticide pollutants in water. Approved for use with effluent guidelines regulations for the Pesticide Chemicals category (40 CFR Part 455).
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Methods Update Rule - 2017
Description and documents for the 2017 Methods Update Rule, published 8/28/2017. Amends 40 CFR Part 136.
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Support Documents for the Phase III Cooling Water Intake Rule (2006)
Documents supporting the final Phase III rule for cooling water intakes (2006).
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Support Documents for the Phase II Cooling Water Intake Rule (2004; withdrawn)
Documents supporting the Phase II cooling water intake rule (subsequently withdrawn)
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POTW Nutrient Survey
National Study of Nutrient Removal & Secondary Technologies - online survey questionnaire for POTWs
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2020 Order Denying a Petition to Object to the Title V Operating Permit for Hazlehurst
This document is part of the Title V Petition Database.
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Industrial Laundries Wastewater Discharges
Federal Register notices and support document related to wastewater discharges from industrial laundries
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Alternate Test Procedures
Explanation of Alternate Test Procedure program and method flexibility procedures for Clean Water Act analytical methods (40 CFR Part 136).
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Water Reuse Case Study: Richmond Hill, Georgia
This case study highlights how a A Water Reclamation Facility Treats Muncipal Wastewater and Reclaims it for Landscape Irrigation and Wetland Preservation in Georgia
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Good Samaritan Remediation of Abandoned Hardrock Mines Program
An overview of the new Good Samaritan Remediation of Abandoned Hardrock Mines Program
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EPA Additions to Illinois' 2024 Impaired Waters List
This notice announces EPA solicitation of public comment on its identification of 19 water quality limited segments impaired by total phosphorus to be included on Illinois’ 2024 List of Impaired Waters under Section 303(d) of the Clean Water Act.