Science & Technology

Data Reports for Retrospective Case Study in Killdeer, North Dakota

Data from sampling events conducted in Killdeer, North Dakota as part of EPA's Study of the Potential Impacts of Hydraulic Fracturing for Oil and Gas on Drinking Water Resources, retrospective case study

Data Reports for Retrospective Case Study in Southwestern Pennsylvania

This page includes sampling results from rounds conducted in Southwestern Pennsylvania for EPA's Study of the Potential Impacts of Hydraulic Fracturing on Drinking Water Resources

Data Reports for Retrospective Case Study in Wise County, Texas

Data reports from sampling events collected in wise county, texas as part of EPA's Study of the Potential Impacts of Hydraulic Fracturing for Oil and Gas on Drinking Water Resources, retrospective case study.

Guide to retrospective case study data reports

Step by step guide to data reports

The Verification of a Method for Detecting and Quantifying Diethylene Glycol, Triethylene Glycol, Tetraethylene Glycol, 2-Butoxyethanol and 2-Methoxyethanol in Ground and Surface Waters

peer reviewed EPA Report on Verification of Glycols Method

EPA Published Research Related to the Hydraulic Fracturing Study

A list of publications that will support the draft assessment report on the potential impacts of hydraulic fracturing on drinking water resources. These publications have undergone peer review through the journal where the paper has been published.

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.

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.

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.

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

Report: Retrospective Case Study in Killdeer, North Dakota (PDF)

PDF of Killdeer, North Dakota retrospective case study report

Report: Retrospective Case Study in the Raton Basin, Colorado (PDF)

PDF of retrospective case study in the raton basin, Colorado, EPA report

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.

Report: Retrospective Case Study in Northeastern Pennsylvania (PDF)

PDF of EPA report Retrospective Case Study in Northeastern Pennsylvania

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.