Science & Technology

Dockets

During the IRIS assessment development process, EPA releases materials informing the development of draft assessments for public comment and review. The table on this page includes active IRIS dockets and indicates if they are open.

Risk-Screening Environmental Indicators (RSEI) Model

The Risk-Screening Environmental Indicators (RSEI) model is a computer-based screening tool that analyzes factors that may result in chronic human health risks and calculates various scores.

Groundwater Guidance and Reports: Table of Contents

Access key EPA groundwater guidance and selected other reports on groundwater used frequently by Superfund Remedial Project Managers.

EPA OIG Infrastructure Investment and Jobs Act Oversight

The OIG is prepared to maximize the effectiveness of Infrastructure Investment and Jobs Act funds appropriated to the EPA and specifically to the OIG for oversight, ensuring that they are used for their intended purposes.

Pony Express Leaking Underground Storage Tank Site, Winnebago, Nebraska

EPA, in consultation with the Winnebago Tribe of Nebraska, Ho-Chunk, Incorporated and the Nebraska Department of Water, Energy and Environment, has determined that no further action is needed at the Pony Express Leaking Underground Storage Tank site.

Comments Due Date: September 25, 2026
Geographic Locations: Nebraska

Fact Sheet: Odor Control in Biosolids Management

Odor complaints at operating facilities can lead to long term problems. Local public opposition can delay or prevent expansions or upgrades to facilities required to improve water quality.

Communicating about Cyanobacterial Blooms and Toxins in Recreational Waters

Information related to tools for water managers to communicate the risks to cyanobacterial blooms and their toxins in recreational waters.

Clean Water Act Analytical Methods

The EPA publishes laboratory analytical methods (test procedures) that are used by industries and municipalities to analyze the chemical, physical and biological components of wastewater and other environmental samples required by the Clean Water Act.

HAB Methods

Information related to Analytical Methods for Toxin Analysis

Ready for Reuse in Texas

EPA has developed a new, long-term corrective action "measure of success" for all EPA/state cleanup programs that recognizes when a site/facility has been assessed and, if necessary, remediated to the extent that the property is safe for reuse or redevelop

Ready for Reuse in Louisiana

EPA has developed a new, long-term corrective action "measure of success" for all EPA/state cleanup programs that recognizes when a site/facility has been assessed and, if necessary, remediated to the extent that the property is safe for reuse or redevelop

Scientific Diving

Homepage for EPA's scientific diving program.

Greenhouse Gas (GHG) Emissions and Removals

Learn about key greenhouse gases and their sources, as well greenhouse gas emissions at the global, national, facility,and household level.

Session 10 - Particular Matter (PM) and Volatile Organic Compounds (VOC) Speciation (2017 EIC)

Papers and presentations submitted at the 2017 Emissions Inventory conference

Guidelines and Criteria for the Search Strategy, Evaluation, Selection, and Documentation of Key Data and Supporting Data Used for the Derivation of AEGL Values

This is Section 2.3 of the Standing Operating Procedures for Developing Acute Exposure Guideline Levels (AEGLs) for Hazardous Chemicals. It discusses methodologies used to search for and select data for development of AEGL values.