Learn the Issues
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Combined Sewer Overflows in the Great Lakes Basin-New York
There are 184 communities in the United States portion of the Great Lakes Basin that have combined sewer overflows (CSOs).
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Contact Us: Pesticide Permitting
Contact information for Pesticide Applications programs
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Approved or Established TMDLs
This page provides links to sources and program contacts related to approved or established TMDLs for waterbodies located in jurisdictions covered under the EPA CGP and MSGP.
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Federal Laws that Apply to the NPDES Permit Program
Other laws, besides the Clean Water Act (CWA), that apply to the NPDES permit program.
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Stormwater Discharges from Industrial Activities-Electronic Reporting
Federal regulations require stormwater discharges associated with industrial activity to be covered under NPDES permits.
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Urban Area Maps for NPDES MS4 Phase II Stormwater Permits
The universe of regulated small municipal separate storm sewer systems (MS4s) in urbanized areas expands every 10 years, according to the 1999 stormwater phase II final rule.
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Wildfire Smoke Readiness and Response for Region 10 Tribes
Resources to help Tribes manage the effects from wildfire smoke in Alaska, Idaho, Oregon, and Washington (EPA's Region 10).
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NPDES State Program Authority
State authorization information, state authority information, and information on withdrawal petitions.
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Stormwater Discharges from Transportation Sources-Innovative Materials
Transportation authorities manage the runoff on street, road, and highways that has polluted by cars, trucks, buses, and other vehicles.
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Combined Sewer Overflows in the Great Lakes Basin-Indiana
There are 184 communities in the United States portion of the Great Lakes Basin that have combined sewer overflows (CSOs).
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Combined Sewer Overflows in the Great Lakes Basin-Ohio
There are 184 communities in the United States portion of the Great Lakes Basin that have combined sewer overflows (CSOs).
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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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Nutrient Pollution
Nutrient pollution is one of America's most widespread, costly and challenging environmental problems, and is caused by excess nitrogen and phosphorus in the air and water.
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Comprehensive Conservation and Management Plan for Sarasota Bay
Information on the restoration and protection of Sarasota Bay.
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State of the Bay Report for Maryland Coastal Bays Program
Information on the current condition of the Maryland Coastal Bays.
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State of the Bay Report for Tillamook Estuaries Partnership
Information on the current condition of the Tillamook Estuaries.
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Comprehensive Conservation and Management Plan for Indian River Lagoon
Information on the restoration and protection of the Indian River Lagoon Estuary.
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State of the Bay Report for Casco Bay
Information on the current condition of Casco Bay.
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Comprehensive Conservation and Management Plan for Coastal Bend Bays and Estuaries
Information on the restoration and protection of the bays and estuaries of South Texas.
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State of the Bay Report for Long Island Sound
Information on the current condition of the Long Island Sound bay and estuaries.