Learn the Issues

Updated 7th DWINSA System-Level Service Line Material Type

RadTown Radiation Protection Activity 1: History of Radiation Protection

When did humans discover radioactivity, and how have we used it since? Teach your students about how we have protected people from ionizing radiation throughout history with this free classroom activity.

RadTown Radioactive Atom: Vocabulary Activities

Increase your students’ science literacy with vocabulary activities from EPA! Learn more about radioactivity, how it works, and how we talk about it using free printable materials and lesson plans.

NPDES Stormwater Program

The National Pollutant Discharge Elimination System (NPDES) stormwater program regulates some stormwater discharges from three potential sources: municipal separate storm sewer systems (MS4s), construction activities, and industrial activities.

Combined Sewer Overflow Training

NPDES CSO policy memoranda, reports to Congress, and trainings.

State NPDES Program Authority

Map showing states that are authorized for NPDES Programs.

Integrated Planning Webcast Recordings

Integrated planning webcast recordings

Water Quality Trading Toolkit for Permit Writers - Fact Sheet

The fact sheet explains the development, purpose, and uses of the Water Quality Trading Toolkit for Permit Writers.

Forest Roads

NPDES forest roads from stormwater discharges information.

Construction General Permit Flow Chart: "Do I Need a Permit?"

You can use the “Do I Need A Permit?” flow chart to help determine if and from whom you need to get NPDES permit coverage for your construction activities.

Pre-FY 2018 NPDES Oversight Initiatives

The Permitting for Environmental Results (PER) initiative was a multi-year effort by EPA and the states to improve the overall integrity and performance of the NPDES program.

Report on 2015 EPA-USDA National Workshop

This report is a summary of the discussions among workshop participants on a broad variety of issues related to the development and operation of water quality markets and actions that the EPA and USDA are pursuing.

Sanitary Sewer Overflows (SSOs) and Peak Flow Listening Sessions and Workshop

Listening sessions for SSOs and peak flows.

Flexibilities under the Clean Water Act

Flexibilities under the Clean Water Act related to COVID19.

Materials for Public Listening Session - Stakeholder Input on Public Notice for CSOs in the Great Lakes

Materials for the Public Listening Session on September 14, 2016, to obtain information from the public to help inform development of a new regulation establishing requirements for public notification of CSO discharges in the Great Lakes.

National Pollutant Discharge Elimination System (NPDES)

Provides information about how the permit program interacts with other CWA programs to protect and improve water quality, and provides resources for professionals working in the program at the federal, state, local, and firm level, and concerned public.