Learn the Issues
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Final Guidance on Awards of Grants to Indian Tribes under Section 106 of the Clean Water Act
Guidance to help tribal water quality program managers, staff, and other tribal environmental decision makers design and implement effective and successful water quality programs. Also assists EPA Regions to award and administer tribal grants.
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Recommendations for Revising the Final Guidance on Awards of Grants to Indian Tribes under Section 106 of the Clean Water Act
Recommendations for Revising the Final Guidance on Awards of Grants to Indian Tribes under Section 106 of the Clean Water Act
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EPA Recommended Revisions-Supplement to the Consultation Opportunity Letter Clean Water Act Section 106 Tribal Guidance Revision
This supplement provides additional information on four main topic areas being considered by EPA for revising the Clean Water Act (CWA) 106 Tribal Guidance.
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Tribal Section 106 Revision Project – Status Update 1
Clean Water Act Section 106 Tribal Guidance Revision Project Status #1 - December 2020
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Tribal Section 106 Revision Project – Status Update 2
Clean Water Act Section 106 Tribal Guidance Revision Project Status #2 - January 2021
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St. Clair River AOC
Description of the boundaries of the St. Clair river AOC southward through Michigan about 40 miles connecting the southern tip of Lake Huron to Lake, list of the beneficial use impairments and description of the environmental problems that made it an AOC.
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St. Clair River AOC Boundary Map
Boundary map of St. Clair River AOC.
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Stream Daylighting at Brownfield Sites
This fact sheet explains the benefits and challenges of daylighting a stream at a brownfield site and provides key considerations for communities, case studies and links to additional resources.
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StoryMap Guidance and Publication Requirements
How to identify StoryMap content, develop and maintain StoryMaps, and obtain appropriate approvals at the concept stage and before final publishing.
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EPA Activities Pursuant to 2023 Settlement Agreement
Activities pursuant to 2023 Settlement Agreement
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NPDES Program and Permit Quality Review Toolkit
Permit and Program Quality Review (PQR) standard operating procedures.
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Vulnerable Zone Determination
Vulnerable zones are areas that could be affected by a release from a chemical accident at a facility subject to the risk management program requirements in 40 CFR Part 68. How can one determine if they live or work within a vulnerable zone? The Vulnerable Zone Indicator System (VZIS) allows…
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CFAT Impacts on EPCRA and RMP
The Department of Homeland Security’s Chemical Facility Anti-Terrorism Standards (CFATS) impose comprehensive federal security regulations for high-risk chemical facilities. Do the CFATS alter the requirements that apply to a facility covered under both CFATS and either the Emergency Planning and Community Right-to-Know Act (EPCRA) or the Clean Air Act §112(r)…
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Are exercises required as a part of the emergency response program requirements under 40 CFR Part 68, Subpart E?
Yes. At least once each calendar year, the owner or operator of a stationary source with any Program 2 or Program 3 process must conduct an exercise of the stationary source's emergency response notification mechanisms per 40 CFR 68.90(b)(3) or 68.95(a)(1)(i), as appropriate, before December 19, 2024, and annually thereafter…
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Criteria for selecting alternative release scenarios
As part of the hazard assessment, owners and operators of Program 2 and Program 3 covered processes must identify and analyze alternative release scenarios (40 CFR §68.28). What criteria should be used when selecting an alternative release scenario? The owner or operator of a stationary source subject to the risk…
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NPDES Permit Writers' Course
The objective of the NPDES permit writers' course is to provide the basic regulatory framework and technical considerations that support the development of wastewater discharge permits as required under the NPDES Permit Program.
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Managing Cyanotoxins in Public Drinking Water Systems
Webpage describing cyanobacteria issues for public water systems. Provides resources public water systems can use for identification, prevention and mitigation of cyanobacterial blooms.
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Summary of Cyanotoxins Treatment in Drinking Water
summary of treatment processes for cyanotoxins in drinking water
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Chromium in Drinking Water
Learn about chromium regulation in public drinking water systems and the potential that the regulation may be amended in the future to better address chromium-6.
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National Cost Analysis for Drinking Water Regulations
This page consists of the annual cost that the EPA has researched for drinking water regulations and policies.