Collections and Lists
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Live
US EPA live events are available to watch on this page as they occur.
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EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Puerto Rico SIP
EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Puerto Rico SIP
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EcoRisk Portal Resources
Ecological Risk Assessment Portal Resources
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President's Environmental Youth Award (PEYA) 2018 Winners
Summary of 2018 President's Environmental Youth Award winners.
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President's Environmental Youth Award (PEYA) 2022 Winners
Summary of past and current President's Environmental Youth Award winners.
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President's Environmental Youth Award (PEYA) 2023 Winners
Summary of past and current President's Environmental Youth Award winners.
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Presidential Innovation Award for Environmental Educators (PIAEE) 2023 Winners
Summaries of winners of the Presidential Innovation Award for Environmental Educators, and links to winners of past years.
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Water Quality Standards Regulations: California
California water quality standards that are EPA-approved or in effect for Clean Water Act purposes.
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Regional Streamflow Duration Assessment Methods
Regional SDAMs for the United States classify streams as perennial, intermittent, or ephemeral at the stream reach scale. Learn about SDAMs, their development, and how to apply these field methods using the web application
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Biological Data Implicate Pesticide Contamination in North Carolina
Case Studies: Using bioassessments and biocriteria to identify impaired waters and causes of impairment
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Setting Goals for Desired Ecological Outcomes in Maine
Setting goals for desired ecological outcomes in Maine
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EPA Region 3 Field Analytical Methods
A list of resources related to Field Analytical Methods
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Three Decades of Increasingly Useful Information in Ohio
Case Studies: Benefits of using bioassessment data during biocriteria development
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Ohio's Tiered Aquatic Life Use Designations Turn 20 Years Old
Ohio's Tiered Aquatic Life Use Designations Turn 20 Years Old
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Marine Protection Permitting
The EPA implements the Marine Protection, Research and Sanctuaries Act to safeguard the ocean by preventing or limiting the disposition of any material into ocean waters that would adversely affect human health or the marine environment.
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Title V Petitions
This site will provide basic information on clean air permitting under the title V operating permits program, provide access to state and regional permitting programs, and maintain access to proposed and final regulatory requirements.
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Recent and Upcoming Water Reuse Activities
A list of upcoming activities and recent highlights related to water reuse topics.
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Funding Sources for Schools and Child Care Facilities
new funding sources document
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Hawai'i Cesspool Administrative Orders
EPA Region 9 has entered into Consent Agreements with a number of public agencies and private entities to address violations of the large capacity cesspool requirements in Hawai'i.
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LSLR Financing Case Study: Galesburg, IL
IL case study