Learn the Issues
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Stormwater Discharges from Industrial Activities
Federal regulations require stormwater discharges associated with industrial activity to be covered under NPDES permits.
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Stormwater Discharges from Industrial Activities-EPA's Proposed 2026 MSGP
EPA’s 2021 MSGP applies in areas of the country where EPA is the NPDES permitting authority and has made the permit available for coverage.
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Animal Feeding Operations - NPDES CAFO Permitting
Most states are authorized to issue NPDES permits. The operator of a concentrated animal feeding operation (CAFO) in an authorized state should request coverage from the appropriate state agency and utilize the appropriate state forms.
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Managing Aquaculture to Protect Water Quality
Aquaculture permitting in the NPDES program. Description and resources are provided.
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Start Saving
One of the simplest ways to save both water and energy is to install water-efficient products. WaterSense labeled products not only save water, but can help reduce your energy bills.
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Leak Detection and Flow Monitoring Devices
To help reduce water waste from leaks, EPA has developed a resource to help people understand leak detection and flow monitoring devices.
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Southern California Ocean Disposal Site #2 Investigation
Information about the Southern California Ocean Disposal Site #2 Investigation.
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Phosphorous Reduction in the Mystic River Watershed 101
View document(s) for the Phosphorous Reduction in the Mystic River Watershed 101 webinars.
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Community Involvement Plan for Wyckoff Eagle Harbor Superfund site
Web version of EPA's Community Involvement Plan for the Wyckoff-Eagle Harbor Superfund Site in Bainbridge Island, Washington.
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Program Updates & Accomplishments - Delaware River Partnership
updates from the Delaware Urban waters location tracking the latest news about partnership members and what they are working on
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Urban Waters Meramec River and Big River Factsheet
The Meramec River and Big River Navigate Collaboration to Clean Up Legacy Pollutants
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Anacostia Riverwalk Trail
The Anacostia Riverwalk Trail is a multi-use trail along the east and west banks of the Anacostia River.
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Bronx River Greenway and Pedestrian Bridges
Bronx River Pedestrian Bridges will connect South Bronx residents to the Bronx River and the Bronx River Greenway
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South Valley Community Commons Project
The South Valley Community Commons seeks to incorporate green infrastructure, water conservation, and low-impact development as part of its wellness center.
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Program Contacts for South Platte Watershed
List of Program Contacts for South Platte Area of the Urban Waters Federal Partnership (UWFP)
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SPRUWP Criteria for Receiving a Letter of Support
Criteria for Receiving a Letter of Support from the South Platte River Urban Waters Partnership
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Air Modeling - Guidance for Air Toxics Modeling
This section provides miscellaneous guidance documents other than permit modeling or State Implementation Plan (SIP) attainment demonstrations.
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Air Quality Modeling - Surface and Upper Air Databases
Surface data are meteorological data that are measured at the earth’s surface. Upper air data are meteorological data that are measured in the vertical layers of the atmosphere.
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2021 Employee Viewpoint Survey Results
Page details the response by EPA employees for the 2021 Employee Viewpoint Survey. The tables found within break down responses by agree/disagree, and the percentage of responses for each.
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2023 Employee Viewpoint Survey Results
Page details the response by EPA employees for the 2023 Employee Viewpoint Survey. The tables found within break down responses by agree/disagree, and the percentage of responses for each.