Learn the Issues

U.S.-Mexico Border Water Infrastructure Grant Program

The U.S.-Mexico Border Water Infrastructure Program provides funding for the region 100 kilometers (62 miles) north and 100 kilometers south of the U.S.-Mexico border.

NPDES Program Management and Oversight

Descriptions of Permitting for Environmental Results (PER), Permit and Program Quality Review (PQR), Backlog Reduction, Priority Permits Initiative.

NPDES Permit Writer's Specialty Training: Addressing Nutrient Pollution in NPDES Permits

This training course builds on the basic NPDES Permit Writers’ Course, but adapts the concepts presented in that course to consider issues permit writers may face when permitting discharges of nutrients.

Whole Effluent Toxicity (WET) NPDES Spreadsheet

This spreadsheet can be used to analyze valid acute or chronic WET test data using statistical approaches.

Transcript of Public Hearing on Proposed Rulemaking for Criminal Negligence Standard for State Clean Water Act 402 and 404 Programs

Transcript of the public hearing on the proposed Rulemaking for the Criminal Negligence Standard for State Clean Water Act 402 and 404 Programs, held by EPA on January 7, 2021.

Public Hearing and Notice of Proposed Rulemaking for Criminal Negligence Standard for State Clean Water Act 402 and 404 Programs

The EPA Administrator signed the following notice of proposed rulemaking, Criminal Negligence Standard for State Clean Water Act 402 and 404 Programs, on November 30, 2020. EPA is submitting the notice for publication in the Federal Register.

National Pretreatment Program Events

National Pretreatment Program events, training and publications.

EPA's Responses to 2015 Stormwater Discharge Petitions

EPA Region 3 denial of petitions for designation in several watersheds.

Frequently Asked Questions for Control Authorities on the Dental Rule (40 CFR Part 441)

This document clarifies implementation questions for control authorities on the dental office rule.

Best Practices for NPDES Permit Writers and Pretreatment Coordinators to Address Toxic and Hazardous Chemical Discharges to POTWs

This guidance generally describes measures (“best practices”) NPDES permit writers and pretreatment coordinators should consider adopting to address hazardous and toxic chemical discharges to POTWs.

Applicability of Federal Categorical Pretreatment Standards to Arias Research Associates, Inc.

Letter on determination from EPA Region 9 on the applicability of categorical pretreatment standards to Arias Research Associates on the basis of research and development (R&D) activities.

Municipal Sources Resources

Information regarding permits, fees, funding, and guidance for municipalities interested in stormwater regulations and programs.

Pretreatment Program Factsheet: Hazardous Waste Reporting Requirements for Industrial Users

This factsheet can be used by POTWs to inform their industrial users about hazardous waste reporting requirements in accordance with pretreatment regulations.

NPDES WET Video Training Guide Documents

A collection of NPDES WET Video Training Guide documents.

2004 NPDES CSO Report to Congress

This report, delivered to Congress on Thursday, August 26, 2004, presents a comprehensive characterization of CSOs and SSOs, including the extent of environmental and human health impacts caused by CSOs and SSOs.

Stormwater Discharges from Transportation Sources

Transportation authorities manage the runoff on street, road, and highways that has polluted by cars, trucks, buses, and other vehicles.

National Pretreatment Program Hauled Waste

Overview of regulations and guidance for the hauling and removal of transported hazardous (hauled) waste.

NPDES Stormwater Rules and Notices

List of stormwater rules and notices documents.

EPA's 2012 Construction General Permit (CGP) and Related Documents

List of documents for construction general permits.

NPDES Water-Quality Based Permit Limits for Recreational Water Quality Criteria

This set of Frequently Asked Questions (FAQ) provides an overview of NPDES permittingapplicable to continuous dischargers.