Science & Technology
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Asbestos at Superfund Sites: Technical Resources
Access a range of technical and informational resources related to the investigation and cleanup of asbestos contamination at Superfund removal and remedial sites.
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Superfund Contaminated Sediments: Guidance and Technical Support
Access a list of guidance and technical support documents for managing Superfund sediment sites.
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CHIEF Archive Search
Search page for CHIEF archive on www3
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WhAEM2000 BBM Files - Bradshaw Mountains, Arizona
WhAEM2000 (Wellhead Analytic Element Model) binary base map browser for Bradshaw Mountains Quadrangle, Arizona. Files serve as geographic basis for groundwater modeling.
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WhAEM2000 BBM Files - Boulder City, Arizona
WhAEM2000 (Wellhead Analytic Element Model) binary base map browser for Boulder City Quadrangle, Arizona. Files serve as geographic basis for groundwater modeling.
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WhAEM2000 BBM Files - Blythe, Arizona
WhAEM2000 (Wellhead Analytic Element Model) binary base map browser for Blythe Quadrangle, Arizona. Files serve as geographic basis for groundwater modeling.
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WhAEM2000 BBM Files - Bagdad, Arizona
WhAEM2000 (Wellhead Analytic Element Model) binary base map browser for Bagdad Quadrangle, Arizona. Files serve as geographic basis for groundwater modeling.
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WhAEM2000 BBM Files - Atascosa Mountains, Arizona
WhAEM2000 (Wellhead Analytic Element Model) binary base map browser for Atascosa Mountains Quadrangle, Arizona. Files serve as geographic basis for groundwater modeling.
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WhAEM2000 BBM Files - Alamo Lake, Arizona
WhAEM2000 (Wellhead Analytic Element Model) binary base map browser for Alamo Lake Quadrangle, Arizona. Files serve as geographic basis for groundwater modeling.
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WhAEM2000 BBM Files - Ajo, Arizona
WhAEM2000 (Wellhead Analytic Element Model) binary base map browser for Ajo Quadrangle, Arizona. Files serve as geographic basis for groundwater modeling.
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WhAEM BBM Files - Arizona
WhAEM2000 (Wellhead Analytic Element Model) binary base map browser for quadrangles in Arizona. Files serve as geographic basis for groundwater modeling.
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Risk-Screening Environmental Indicators (RSEI) Methodology Version 2.3.7
the document for Risk-Screening Environmental Indicators (RSEI) Methodology Version 2.3.7, December 2018
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Level III and IV Ecoregions by EPA Region
Information and downloadable maps and datasets for Level III and IV ecoregions, listed by EPA region. Ecoregions are areas of general similarity in the type, quality, and quantity of environmental resources.
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Air Sensor Loan Programs
A few air sensor loan programs have been established by the EPA to enable the public to learn about local air quality conditions by collecting air quality measurements using the monitors.
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Pesticide General Permit Electronic Reporting
The EPA’s eNOI system is a free online service. Pesticide decision-makers should use the system to submit an NOI, Annual Report or Notice of Termination (NOT) for pesticide discharges under EPA’s 2016 PGP.
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Submitting Data to EPA: Historical Resources
Information on Submitting Data to EPA Historical Files
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Manual Verification Guides
Information related to Manual Verification Guides.
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Frequent Questions - Final Water Quality Standards for Coastal and Great Lakes Recreation Waters
Frequent Questions - Final Water Quality Standards for Coastal and Great Lakes Recreation Waters
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Lead at Superfund Sites: Guidance
Access guidance documents, short sheets, and training videos for addressing lead contamination at Superfund sites.
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Models for Predicting Beach Water Quality
Information on Models for Predicting Beach Water Quality