Learn the Issues
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2012 Good Samaritan Memorandum
Documents related to the good samaritan initiative to restore watersheds and fisheries.
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Federal Register Notice (June 1, 2010)
Federal Register Notice for Sanitary Sewer Overflows (SSO), POTW treatment plants and CMOM programs
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Flutianil Petition and Response
Petition and Response documents for Flutianil
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Previous Versions of EPA's MSGP documents
Documents related to Multi-Sector General Permits prior to 2015.
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EPA’s 2011 Pesticide General Permit (PGP) Documents
General permit conditions, state- and tribal-specific permit conditions, permit forms, worksheets, and templates.
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Pretreatment Standards and Requirements-General and Specific Prohibitions
Overview of types of variances that can be granted for pretreatment standards.
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Permit Limits-Nutrient Permitting
Excess nutrient loading to water bodies beyond levels needed to maintain the health of an indigenous aquatic ecosystem is commonly referred to as nutrient pollution.
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Permit Limits-TBELs and WQBELs
Descriptions of impaired waters, TBELs, WQBELs, watershed-based permitting, and WET.
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Permit Limits-Recreational Water Quality Criteria Limits
This set of Frequently Asked Questions (FAQ) provides an overview of NPDES permitting applicable to continuous dischargers (such as POTWs) based on water quality standards for pathogens and pathogen indicators associated with fecal contamination.
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Permit Limits-Permitting to Meet a Total Maximum Daily Load (TMDL)
Information on tools for permit writers when writing NPDES permits for facilities located on bodies of water for which a total maximum daily load (TMDL) has been approved or established by EPA.
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NPDES Permit Limits
Descriptions of impaired waters, TBELs, WQBELs, watershed-based permitting, and WET.
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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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Permit Limits-Watershed-Based Permitting
Watershed-based permitting is a process that emphasizes addressing all stressors within a hydrologically defined drainage basin, rather than individual pollutant sources on a discharge-by-discharge basis.
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Permit Limits-Whole Effluent Toxicity (WET)
Whole Effluent Toxicity (WET) describes the aggregate toxic effect of an aqueous sample (e.g., whole effluent wastewater discharge) as measured by an organism's response upon exposure to the sample (e.g., lethality, impaired growth, or reproduction).
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Pesticide Permitting-Permitting Decision Tool
EPA developed this interactive decision tool to help you answer NPDES Permit questions.
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Public Notification for CSOs to the Great Lakes Factsheet
On January 13, 2017, EPA published a proposed rule requesting comments on Public Notification Requirements for Combined Sewer Overflows to the Great Lakes Basin.
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Pre-Publication Version of Public Notification Requirements for Combined Sewer Overflows to the Great Lakes Basin
On December 16, 2016, EPA signed a notice of proposed rulemaking addressing public notification requirements for combined sewer overflow (CSO) discharges to the Great Lakes Basin.
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2007 CERCLA Administrative Tools for Good Samaritans at Orphan Mine Sites
Memorandum to assist the Regions in the implementation of the Good Samaritan Initiative and focuses on administrative tools developed under CERCLA.
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Compendium of State Approaches for Manure Management
This compendium showcases examples of state program features for promoting good manure management at AFOs.
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Addressing Activities of a Good Samaritan at Abandoned Coal Mines - CERCLA
This fact sheet answers the question: Can the approach of the 2007 and 2012 Good Samaritan memorandums also be applied to coal mines?