Science & Technology
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Best Practices for Siting Solar Photovoltaics on Municipal Solid Waste Landfills
Information concerning reusing former landfills as large solar projects
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SAM 2017 Appendix D: Selected Biotoxin Methods
This appendix lists the usability tiers assigned to biotoxin methods in EPA’s Selected Analytical Methods for Environmental Remediation and Recovery (SAM).
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SAM 2017 Appendix A: Selected Chemical Methods
This appendix lists the usability tiers assigned to chemical methods in EPA’s Selected Analytical Methods for Environmental Remediation and Recovery (SAM).
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Addendum for: Rapid Method for Sodium Hydroxide Fusion of Limestone Matrices Prior to Americium, Plutonium, Strontium, Radium, and Uranium Analyses for Environmental Remediation Following Radiological Incidents
This document contains information which is intended to inform radioanalytical laboratories of newly developed EPA radiochemistry methods.
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Risk Evaluation for Tris(2-chloroethyl) Phosphate (TCEP)
EPA designated tris(2-chloroethyl) phosphate (TCEP) as a high priority chemical in December 2019 and the chemical is currently undergoing risk evaluation.
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Meetings and Webinars on the Amended Toxic Substances Control Act
The new law includes much-needed modernizations to TSCA, the only major piece of environmental legislation that had not been updated since it was passed in the fall of 1976.
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Society of Toxicology (SOT) 2026 Conference
SOT 2025 Event Webpage
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Training
EPA has been developing training to support successful renewable projects on contaminated lands, landfills and mine sites.
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How to Identify Sites
EPA’s RE-Powering America’s Land Initiative encourages renewable energy development on current and formerly contaminated lands, landfills, and mine sites when such development is aligned with the community’s vision for the site.
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Distribution and Support Policy for Hydrologic and Water Quality Models
Center for Exposure Assessment Modeling (CEAM) software support and distribution policy and disclaimer.
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Wellhead Analytic Element Model (WhAEM) Release Notes
Release notes for the Wellhead Analytic Element Model (WhAEM) groundwater geohydrology computer program. Shows Corrections & Improvements to Prior Versions
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AQUATOX v3.1 Installation Guide
Additional details on installation may be found in the aquatox installation guide.
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PRZM Release Notes
Release notes for PRZM3, a one-dimensional, finite-difference software model that accounts for pesticide and nitrogen fate in the crop root zone.
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Fees Information for the Motor Vehicle and Engine Compliance Program
EPA must receive the proper certification fee and fee filing form before starting to review a manufacturer’s certification application for a given test group or engine family.
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Re-Powering Mapper Fact Sheet
Summary of the RE-Powering Mapper, including information about the types of sites screened.
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Water Quality Standards Regulations: Ohio
Ohio Water Quality Standards approved or otherwise in effect for Clean Water Act purposes.
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Guidance on the Development, Evaluation, and Application of Environmental Models
Guidance document on READ and models development, evaluation and application.
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Ozone Designations Mapping Tool Demonstration - Webinar March 23, 2016
Ozone designations mapping tool demonstration - presentation slides
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Field Measurement Uncertainty
Field Branches Quality System and Technical Procedures
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Lead at Superfund Sites: United States Geological Survey (USGS) Background Soil-Lead Survey
Learn about the USGS background soil-lead survey. Use the interactive map to learn about lead levels in your state.