Science & Technology

Data Summary of The First Unregulated Contaminant Monitoring Rule

Data summary and analytical results of the First Unregulated Contaminant Monitoring Rule (UCMR 1).

Data Summary of The Second Unregulated Contaminant Monitoring Rule

Data summary and analytical results of the Second Unregulated Contaminant Monitoring Rule (UCMR 2).

Data Summary of The Fourth Unregulated Contaminant Monitoring Rule

Data summary and analytical results of the Fourth Unregulated Contaminant Monitoring Rule (UCMR 4).

Data Summary of The Third Unregulated Contaminant Monitoring Rule

Data summary and analytical results of the Third Unregulated Contaminant Monitoring Rule (UCMR 3).

Cost Reports and Guidance for Air Pollution Regulations

Web page for EPA's Control Cost Manual and Cost Reports

Wildfires and Water Quality Research

Information about EPA grantee research on wildfire and impacts to water sources

A New Way to Measure Phytoplankton and Cyanotoxin Producers in Large Rivers

EPA researchers collaborated with scientists from the U.S. Geological Survey on a study to look at innovative methods for identifying and tracking the cyanobacteria most likely to produce cyanotoxins in rivers.

Drought Resilience and Water Conservation

EPA is conducting research and working with stakeholders to better understand the impact of drought on water quality and availability, and to provide solutions to help communities become more resilient.

Historical Cost Equations Documentation for CoST

CoST-related historical cost equations documentation for models and tools maintained by OAQPS

ToxCast Data Generation: Chemical Procurement Workflow

This page describes the process EPA follows to select chemicals, procure chemicals, register chemicals, conduct a quality review of the chemicals, and prepare the chemicals for high-throughput screening.

Aquatic Life Criterion - Selenium

Documents pertaining to the 2016 Acute and Chronic Ambient Aquatic Life Water Quality Criteria for Selenium (Freshwater). These documents include what the safe levels of Selenium are in water for the majority of species.

UIC Permit: PAS2R902BMCK

Curtis Oil underground injection control permit

Meet EPA Environmental Engineer Meridith Fry, Ph.D.

Meridith Fry works on developing resources and methods for evaluating the impacts of extreme climate events on contaminated sites and communities. She is currently developing a suite of nationwide geospatial indicators for the EPA regional offices and the

Storm Water Management Model (SWMM)

EPA's Storm Water Management Model (SWMM) is used throughout the world for planning, analysis and design related to stormwater runoff, combined and sanitary sewers, and other drainage systems in urban areas.

EPA's Coral Reef Partners

Coral reefs are among the most biologically diverse and valuable ecosystems on Earth. This web site describes the importance of coral reefs, threats to them, and ongoing efforts to protect them.

EPA NAMs Conference

Page with information about the Conference on the State of Science on Development and Use of NAMs for Chemical Safety Testing

Past Conferences on the State of Science on Development and Use of New Approach Methods (NAMs) for Chemical Safety Testing

Basic page to post presentations from the NAMs Conference.