Learn the Issues
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NPDES Permit Writers' Manual
These documents include the full NPDES permit writer's manual as well as the document divided by chapters.
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Managing Manure Nutrients at CAFOs
This document is designed to supplement EPA's previous guidance by providing additional technical information on how to carry out EPA's revised regulatory requirements for NPDES permitting of CAFOs.
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Pollutants in Publicly Owned Treatment Works Pretreatment Standards; 40 CFR Part 128 Pretreatment Standards
Documents related to pollutants in publicly owned treatment works pretreatment standards; 40 CFR part 128 pretreatment standards.
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Pesticide Applications Training Documents
A collection of PowerPoint presentations from previous webinars.
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NPDES SSO FAC Documents
Series of documents by the Urban Wet Weather Flows Federal Advisory Committee providing review and analysis of water quality issues.
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NPDES Shale Gas FAQ
Documents related to shale gas extraction for natural gas drilling under the NPDES program.
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Pretreatment Implementation Review Task Force (PIRT)
Documents related to Pretreatment Implementation Review Task Force (PIRT).
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Pesticide General Permit Sources of Information for NMFS Listed Resources of Concern
This document provides information on the National Marine Fisheries Service (NMFS) listed resources of concern species, including the species location.
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Format for Submitting Modifications to a 2012 CGP NOI
Modification form for a 2012 CGP NOI.
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NPDES WET Case Studies
Case studies report evaluating relationship of whole effluent toxicity to biological impacts in a freshwater system.
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NPDES Permit Writers' Manual for Concentrated Animal Feeding Operations
This manual is designed to provide general information on the CWA and NPDES requirements for CAFOs, explain CAFO permitting, and provide technical information to understand options for nutrients management planning.
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Secondary Treatment Standards
Secondary treatment standards for POTWs
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Part 403 General Pretreatment Regulations for Existing and New Sources of Pollution
Documents related to part 403 general pretreatment regulations for existing and new sources of pollution.
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Vessel General Permit Legal Documents
A collection of VGP legal documents.
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Secondary Treatment Standards
Secondary treatment standards resources for NPDES permitees.
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NPDES SSO Technical Reports and Materials
Series of documents for evaluating Capacity, Management, Operation, and Maintenance (CMOM) Programs and operation and maintenance of Sanitary Sewer Collection Systems.
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NPDES Water-Quality Based Permit Limits for Recreational Water Quality Criteria
This set of Frequently Asked Questions (FAQ) provides an overview of NPDES permitting applicable to continuous dischargers.
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NPDES CSO Control Policy
EPA's Combined Sewer Overflow (CSO) Control Policy
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NPDES Industrial Stormwater Endangered and Threatened Species Documents
Documents related to industrial stormwater and its effects on endangered and threatened species.
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Renovation, Repair and Painting Program: Renters
Renter-oriented page describing EPA's Renovation, Repair and Painting Program Rule and requirements.