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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Ready for Reuse in Oklahoma
EPA has developed a new, long-term corrective action "measure of success" for all EPA/state cleanup programs that recognizes when a site/facility has been assessed and, if necessary, remediated to the extent that the property is safe for reuseredevelopment
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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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Coral Reefs
Coral reefs are among the most biologically diverse and valuable ecosystems on Earth. This web site describes the importance of coral reefs, threats to them, and ongoing efforts to protect them.
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Annual Reports on PRIA Implementation
pria fees Annual Reports
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Diving Publications
Published articles and presentations on underwater science and polluted water diving at EPA.
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Climate Change Indicators: Snowpack
This indicator measures trends in mountain snowpack in the western United States.
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Climate Change Indicators: Stream Temperature
This indicator shows changes in stream water temperature across the Chesapeake Bay region.