Science & Technology

Headwater Streams - What Are They and What Do They Do?

General Stream Principles including headwater streams, Lane's Relation, stream beahvior

A Function-Based Framework for Stream Assessment and Restoration Projects under CWA Section 404

This report lays out a framework for approaching stream assessment and restoration projects that focuses on understanding the suite of stream functions at a site in the context of what is happening in the watershed.

ODS Destruction in the United States and Abroad - February 2018

This technical report provides information on sources, destruction technologies, and best practices for recovery, collection, transport, and destruction of ozone-depleting substances and other fluorinated compounds such as HFCs

Stakeholder Process for Natural Gas and Petroleum Systems in the 1990-2022 Inventory

This page provides information about stakeholder meetings and webinars on updates under consideration for the 1990-2022 GHG Inventory (to be released in April 2024).

Designation and NAAQS Information Related to Lead (2008 Standard)

EPA resumes cleanup of residential yards at the Jacobsville Superfund site in Evansville, Indiana

Work was paused during the winter months.

EPA News Release: EPA resumes cleanup of residential yards at the Jacobsville Superfund site in Evansville, Indiana

Release Date: March 31, 2025

TMDL Progress Assessment Documents: Dissolved Oxygen

San Francisco Bay Delta water quality progress report focusing on the pesticides dissolved oxygen levels in the Stockton Deep Water Ship Channel.

TMDL Progress Assessment Documents: Mercury

Collection of San Francisco Bay Delta Water Quality Progress Reports focusing on mercury/methylmercury.

Methylmercury and Irrigated Agriculture in the Sacramento-San Joaquin Delta

Key observations from as well as the final report, "Characterization of Methylmercury Loads for Irrigated Agriculture in the Delta".

Presidential Green Chemistry Challenge: 2005 Small Business Award

Presidential Green Chemistry Challenge 2005 award winner, Metabolix, used biotechnology to develop microorganisms that produce polyhydroxyalkanoates: natural, biodegradable plastics with a range of environmental benefits.

Market Developments Around Climate-Related Financial Disclosures

A wide range of federal programs are available to help organizations identify and implement GHG reduction opportunities.

Indoor Air Quality Science

Understand indoor air in homes, schools, and offices. Most of us spend much of our time indoors. The air that we breathe in our homes, in schools, and in offices can put us at risk for health problems. Some pollutants can be chemicals, gases, and living or

20th Annual P3 Awards: A National Student Design Competition Focusing on People, Prosperity and the Planet Request for Applications (RFA)

New RFA for the 20th Annual P3 Competition

Innovative Water Technologies for Lagoon Wastewater Systems in Small Communities Request for Applications (RFA)

This is a new RfA for SSWR

Ecoregions

Information and downloadable maps and datasets for ecoregions, which are areas of general similarity in the type, quality, and quantity of environmental resources.

South Florida Ecosystem Assessment: Phase I/II Everglades Stressor Interactions: Hydropatterns, Eutrophication, Habitat Alteration, and Mercury Contamination

This project used a statistical survey design to sample the Everglades ecosystem from 1993-1999 for a multi-media suite of parameters.