Collections and Lists
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Mississippi River/Gulf of America Hypoxia Task Force
The Hypoxia Task Force is a collaborative state/federal partnership co-led by EPA to address nutrient pollution in the Mississippi-Atchafalaya River Basin and hypoxia in the Gulf of America.
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Nonattainment Areas for Criteria Pollutants (Green Book)
Areas of the country where air pollution levels persistently exceed the national ambient air quality standards may be designated "nonattainment." This site provides current information on nonattainment areas by state and pollutant.
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Electric Power Generation, Transmission and Distribution (NAICS 2211)
EPA regulatory information for electrical utilities, such as coal-fired power plants, includes NESHAPs for RICE, stationary combustion engines, fossil fuel waste, cooling water, effluent guidelines, and information on the MATS rule.
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Mercury and Air Toxics Standards
Regulatory history for MATS
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Climate Adaptation
Find climate adaptation resources from EPA, including the 2021 Climate Adaptation Plan, grant opportunities and regional and program-based resources and tools.
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Title V Operating Permit Public Petition Deadlines
Deadlines for Public Petitions to the Administrator for Permit Objections
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Tools & Resources
Trash free waters publications, media, and reports
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Test 2025 - Radiological Decontamination Query Tool – Urban Wide-Area Decon
Urban wide-area decontamination reports through the Radiological Decontamination Query Tool
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CHPAC Committee Members
Members of the Children's Health Protection Advisory Committee (CHPAC) that advises EPA administrator about children's environmental health, members, meetings, and related info.
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UIC Permits in EPA's Pacific Southwest (Region 9)
Underground Injection Control (UIC) permits in EPA's Pacific Southwest, Region 9.
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Lake St. Clair Coastal Marsh Restoration
Marsh restoration to Lake St. Clair near the Clinton River.
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New Approach Methods (NAMs) Training
NAMS Training Catalog, providing information about recent and upcoming trainings and workshops.
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RTOC Meeting Materials: Spring 2025
Documents related to the Spring 2025 Regional Tribal Operations Committee (RTOC) meeting in EPA's Pacific Southwest, Region 9.
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Wyoming NPDES Permits
NPDES water permits issued by EPA in Wyoming.
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EPA Participation in VCS and Other Private Sector Standards
List of private sector standards committees that EPA is involved in
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EPA EcoBox Tools by Effects - Aquatic
Eco-Box is a toolbox for exposure assessors. Its purpose is to provide a compendium of exposure assessment and risk characterization tools that will present comprehensive step-by-step guidance and links to relevant exposure assessment data bases
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Permitting at EPA
Learn about basic permit and environmental review program explanations, information on delegation and assumption, and federal actions intertwined with EPA permitting, such as Endangered Species Act and National Historic Preservation Act consultation.
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Methods Approved to Analyze Drinking Water Samples to Ensure Compliance with Regulations
This Website provides a list of approved methods, info for regional/state labs to obtain a copy of the methods approved for compliance monitoring and method-specific contacts.
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EPA Transcriptomic Assessment Product (ETAP)
More chemical information is needed to make informed, risk-based decisions. To address this, researchers developed the EPA Transcriptomic Assessment Product (ETAP), a novel human health assessment for chemicals lacking traditional toxicity testing data.
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Response to Information Quality Guidelines Request for Correction #13001
Document page on the response from the EPA about the Request for Correction for Information Quality Guidelines about the Enforcement and Compliance History Online page.