Science & Technology
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Marine Solar Radiation Management Permitting
Proposed marine solar radiation management activities—including field research—that involve the disposition of material into a body of water likely need a permit from the EPA or a state with delegated permitting authority.
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Retrospective Case Study in the Raton Basin, Colorado
Study site locations in Las Animas and Huerfano Counties were selected in response to ongoing complaints about changes in appearance, odor, and taste associated with drinking water in domestic wells.
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Retrospective Case Study in Northeastern Pennsylvania
The EPA chose Bradford County, and parts of neighboring Susquehanna County, as a retrospective case study location because of the extensive hydraulic fracturing activities occurring there, coincident with the large number of homeowner complaints.
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Retrospective Case Study in Southwestern Pennsylvania
The location of this case study was chosen in response to homeowner complaints about changes to water quality and water quantity in Washington County.
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Review of State and Industry Spill Data: Characterization of Hydraulic Fracturing-Related Spills
EPA analyzed spill data from states and industry to better understand what is known about spills associated with hydraulic fracturing
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Report: Retrospective Case Study in Killdeer, North Dakota (PDF)
PDF of Killdeer, North Dakota retrospective case study report
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Report: Retrospective Case Study in the Raton Basin, Colorado (PDF)
PDF of retrospective case study in the raton basin, Colorado, EPA report
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Review of State and Industry Spill Data: Characterization of Hydraulic Fracturing-Related Spills (PDF)
The EPA analyzed spill data from states and industry to better understand what is known about spills associated with hydraulic fracturing.
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Report: Retrospective Case Study in Northeastern Pennsylvania (PDF)
PDF of EPA report Retrospective Case Study in Northeastern Pennsylvania
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Sources Contributing Inorganic Species to Drinking Water Intakes During Low Flow Conditions on the Allegheny River in Western Pennsylvania
EPA scientists evaluated sources of bromide and other inorganic pollutants impacting drinking water intakes on the Allegheny River in Western Pennsylvania.
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Report: Retrospective Case Study in Wise County, Texas (PDF)
PDF of EPA report of Retrospective Case Study in Wise County Texas
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Report: Retrospective Case Study in Southwestern Pennsylvania (PDF)
PDF of EPA report Retrospective Case Study in Southwestern Pennsylvania
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Risk Evaluation for Ethylene Dibromide
EPA designated ethylene dibromide as a high priority chemical in December 2019 and the chemical is currently undergoing risk evaluation.
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Handbook on Coral Reef Impacts: Avoidance, Minimization, Compensatory Mitigation, and Restoration
This Handbook provides a general summary of current avoidance, minimization, compensatory mitigation, and restoration strategies that may help address physical damage resulting from direct adverse impacts to coral reefs.
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Diving Publications
Published articles and presentations on underwater science and polluted water diving at EPA.
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URISA Address Standard
The Urban and Regional Information Systems Association (URISA) standard for addresses. The document covers thoroughfare, landmark, and postal addresses within the United States, including its outlying territories and possessions.
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Watershed Health Assessment Tools Investigating Fisheries
WHATIF is software that integrates a number of calculators, tools, and models for assessing the health of watersheds and streams with an emphasis on fish communities.
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May 1, 2009 EPA response to the Request for Correction of Information Disseminated by EPA in Support of its Proposed National Ambient Air Quality Standard for Lead
EPA response to the Request for Correction (RFC)
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May 19, 2010 EPA response to the Request for Correction; Integrated Science Assessment - Oxides of Nitrogen
EPA response to the Request for Correction (RFC)
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May 27, 2010 EPA response to National Association of Manufacturers
EPA response to the Request for Correction (RFC)