Science & Technology
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About the Study
Overview of Hydraulic Fracturing Water Cycle and Research Approaches.
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2008 STORET/WQX Workshop for Tribes Presentations
STORET/WQX Workshop for Tribes (Workshop dates: November 18-19, 2008): Presentations and webinars
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Region 9 CWA Water Pollution Control Presentations: WQX Workshop (August 2010)
Presentations from past workshops and webinars held by or in conjunction with the Water Tribal Office and its presentations from RTOC Water Quality breakout sessions.
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Templates for Developing Wetland Water Quality Standards
These templates are a tool to simplify development of protective wetland water quality standards.
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Use Attainability Analysis and the Use Revision Process
This interactive diagram can help states and authorized tribes establish or revise designated uses by addressing the steps and questions they should consider while conducting a Use Attainability Analysis (UAA).
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Interactive Version of the Electric Vehicle Label
Interactive electric vehicle fuel economy label displays and details.
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Sources of Chronic Dose-Response Information
Sources of Chronic Dose-Response Information
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About EPA's SBIR Program
Overview of the SBIR Program established by the Small Business Innovation Development Act of 1982. EPA issues annual solicitations for Phase I and Phase II research proposals from science and technology-based firms.
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Sources of Acute Dose-Response Information
Sources of Acute Dose-Response Information
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Comments incorporated by reference into the Information Quality Act Request for Correction
Select comments to Science Advisory Board incorporated by reference into Information Quality Act Request for Correciton
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Exhibit A of the Request for Correction Regarding "Drinking Water: Regulatory Determination on Perchlorate" (RFC 12004)
EPA Request for Correction 12004 (Exhibit A): A review of perchorlate occurrence in public drinking water systems
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RACT/BACT/LAER Clearinghouse (RBLC) Related Resources
RBLC Products include User's Manuals, Annual Reports, Data Input Form and the RBLC Standalone Editor (Software for off-line data entry).
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Proposed Expansion of the Safer Choice and Design for the Environment Programs
The EPA hosted a public listening session on potentially expanding the Safer Choice and Design for the Environment (DfE) programs on August 29, 2023.
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Text Version of the Electric Vehicle Label
Text version of electric vehicle fuel economy label displays and details.
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Final Ecosystem Goods and Services (FEGS) Glossary of Terms
This page contains the glossary of terms that support the FEGS web site, these come from the 2013 final report.
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The Alternatives for Disposition of Electronics Planning Tool (ADEPT)
ADEPT tool landing page
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Post-processing IsoSource Results
Discussion and a detailed example of post-processing results from the IsoSource stable isotope mixing model.
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Stable Isotope Mixing Models for Estimating Source Proportions
Stable isotope analysis can be used in ecological studies to trace chemical movement through the environment. This page provides three analysis tools for download: IsoError, IsoConc, and IsoSource.
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Hydrologic Evaluation of Landfill Performance (HELP) Model
The program models rainfall, runoff, infiltration, and other water pathways to estimate how much water builds up above each landfill liner.
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ProUCL Fact Sheet
ProUCL is a comprehensive statistical software package initially developed by EPA for computing statistical intervals to respond to concerns at a specific Superfund site.