Science & Technology
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Managing Air Quality - Ongoing Evaluation of Progress
Describes the importance of evaluating if air quality programs are achieving the desired results to inform environmental program managers, regulated industry and the public, and provides EPA examples.
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Retrospective Case Study in Killdeer, North Dakota
This study site was chosen at the request of the state to specifically examine any water resource impacts from a well blowout in September 2010 that resulted in an uncontrolled release of hydraulic fracturing fluids and formation fluids.
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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.
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Dioxin at Superfund Sites
Learn about dioxin contamination as it relates to cleanup at Superfund sites. Access related laws, publications, and resources for scientists.
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Cleanup Levels for Dioxin at Superfund Sites
Access links to Regional Screening Levels (RSLs) and soil cleanup levels for dioxin.
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Vapor Intrusion Database
Instructions for use and link to Vapor Intrusion Database.
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Conceptual Model Scenarios for the Vapor Intrusion Pathway
This report provides simplified simulation examples to illustrate graphically how subsurface conditions and building-specific characteristics determine the distribution chemical distribution and indoor air concentration relative to a source concentration.
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WQX Detection Limits Best Practices Guide
The Water Quality eXchange (WQX) Detection Limits Best Practices Guide provides guidance for organizations to document censored data when submitting physical chemical and/or biological data to WQX.
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FIFRA Scientific Advisory Panel Formation Process
This document provides detailed information on how EPA selects members of the Scientific Review Board to assist permanent members of the FIFRA Scientific Advisory Panel.
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EPA Begins Hazardous Substances Removal from Former Omni Polymers Facility in Toledo, Ohio
The U.S. Environmental Protection Agency (EPA) has begun the cleanup of hazardous substances at the former Omni Polymers facility located at 1925 Nebraska Ave. in Toledo, Ohio. The cleanup is expected to be completed by spring 2026.
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Ambient Air Monitoring Quality Assurance
Ambient Monitoring Quality Assurance
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Model Clearinghouse - Documents
Model Clearinghouse Documents
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Summary of Oklahoma's Water Reuse Guideline or Regulation for Landscaping
Oklahoma (State Regulation) | Source water: Treated municipal wastewater | End use: Landscaping
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Summary of Nevada's Water Reuse Guideline or Regulation for Landscaping
Nevada (State Regulation) | Source water: Treated municipal wastewater | End use: Landscaping
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Summary of Utah's Water Reuse Guideline or Regulation for Landscaping
Utah (State Regulation) | Source water: Treated municipal wastewater | End use: Landscaping
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Summary of Arizona's Water Reuse Guideline or Regulation for Centralized Non-potable Reuse
Arizona (State Regulation) | Source water: Treated municipal wastewater | End use: Centralized non-potable water reuse
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Summary of Arizona's Water Reuse Guideline or Regulation for Consumption by Livestock
Arizona (State Regulation) | Source water: Treated municipal wastewater | End use: Consumption by livestock
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Summary of Arizona's Water Reuse Guideline or Regulation for Impoundments
Arizona (State Regulation) | Source water: Treated municipal wastewater | End use: Impoundments
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Summary of Arizona's Water Reuse Guideline or Regulation for Landscaping
Arizona (State Regulation) | Source water: Treated municipal wastewater | End use: Landscaping
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Summary of California's Water Reuse Guideline or Regulation for Centralized Non-potable Reuse
California (State Regulation) | Source water: Treated municipal wastewater | End use: Centralized non-potable water reuse