Science & Technology

Response to the National Association of Manufacturers Request for Reconsideration from November 17, 2009

The EPA defers consideration for the NAM RFR due to relevance of ongoing litigation

Re: Request Under the Data Quality Act and EPA's Information Quality Guidelines

In light of recent statements from EPA in the rulemaking for the Mercury and Air Toxics Standards ("MATS Rule"), Environmental Integrity Project ("EIP") and Chesapeake Climate Action Network ("CCAN") submit this Request for Correction to ask EPA to resolve

Rulemaking Notices for GHG Reporting

Listing of Federal Register notices and links to more information for each rulemaking action related to EPA's Greenhouse Gas Reporting Program.

TSCA Section 21 Petition Concerning Lead in Paint - Public and Commercial Buildings

This petition requests that EPA promulgate a rule pursuant to TSCA Section 8(d) requiring submission of certain records related to the Occupational Safety and Health Administration’s construction standard for lead.

TSCA Section 21 Petition to Promulgate Regulations Governing PVCs

This petition requests EPA to promulgate regulations governing the safe treatment, storage and disposal of polyvinyl chloride (PVC), vinyl chloride and associated dialkyl- and alkylarylesters of 1,2-benzenedicarboxylic acid.

TSCA Section 21 Petition Requesting EPA to Establish a Process to Amend the List of Natural Sources of Oil and Fat

This petition requests EPA to to initiate a rulemaking under TSCA Section 83 that would establish a process to amend the list of natural sources of oil and fat in the “Soap and Detergent Association” (SDA) nomenclature system.

RE: Request for Reconsideration of Request for Correction (RFC #10003) regarding EPA's Coal Combustion Products Partnerships Website

Letter response to the Public Employees for Environmental Responsibility (PEER) Request for Reconsideration (RFR #10003A).

Petition to Promulgate Reporting Rules for Mercury Manufacturing, Processing, and Importation

Section 21 petition to promulgate reporting rules for mercury manufacturing, processing, and importation under section 8(a) of the Toxic Substances Control Act.

RFC 17002

Re: Request for Correction 09001

Follow up letter on RFC 09001 on behalf of the Association of Battery Recyclers

Nutrients Management: External Reports

External reports from USGS, USDA, National Academy of Sciences, and NSTEPS on nutrient management.

Determining the Prevalence of Contaminants in Treated and Untreated Drinking Water

Scientists from EPA and the U.S. Geological Survey (USGS) are conducting a multi-phase study to determine the presence of contaminants of emerging concern in treated and untreated drinking water.

Scientists evaluate potential of mussels to detect microbial contamination of ambient water

Microbial contamination in lakes, rivers and oceans can cause illnesses to animals and humans who come in contact with the water.

System for Urban Stormwater Treatment and Analysis IntegratioN (SUSTAIN)

SUSTAIN is a decision support system that assists stormwater management professionals with developing and implementing plans for flow and pollution control measures to protect source waters and meet water quality goals.

Research to Support and Implement Recreational Water Quality Criteria (RWQC)

EPA's non-potable water reuse research.

Small Wastewater Systems Research

Small communities face barriers to building and maintaining effective wastewater treatment services, challenges include financial/economic limitations, lack of managerial training and geographic isolation/remoteness.

Mountaintop Mining Research

EPA research on mountaintop mining examines the impacts of mining on headwater streams and other water resources near mining sites

CMAQ Community

Learn about the many individuals and organizations that use and contribute to the CMAQ system. You can also view the results of our 2016 User Survey and read blog posts by CMAQ scientists.

EPA to hold public hearing on the City of Asheboro’s wastewater treatment plant proposed permit

Release Date: October 8, 2025

Student Curriculum Downloads

Downloads for the student curriculum.