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Water: Hydraulic Fracturing

Evaluation of Impacts to Underground Sources of Drinking Water by Hydraulic Fracturing of Coalbed Methane Reservoirs Study (2004)

The study of coalbed methane (CBM) wells involved interviews with approximately 50 state and local government agency staff members, communications with about 40 citizens who were concerned that CBM production had adversely affected their drinking water wells, and searches for confirmed incidents of drinking water well contamination. EPA published a draft report in August 2002, requested public comment, and incorporated changes as appropriate in the final report.

Below are links to the major documents prepared as part of EPA’s effort to gather and analyze information related to the potential impacts on underground sources of drinking water from the injection of hydraulic fracturing fluids into CBM wells.

  • Visit the hydraulic fracturing page for more information about hydraulic fracturing and for background on why EPA conducted the study.

Final Study

You will need Adobe Reader to view some of the files on this page. See EPA's PDF page to learn more.



Study History and Approach

Related Web Sites

  • The Ground Water Protection Council  Exit EPA Disclaimer (GWPC) is a nonprofit organization whose members represent industry, state and federal regulators, academia, and others who have interests in ground water protection. In 1998, GWPC conducted a survey on the inventory and extent of hydraulic fracturing in CBM wells in the producing states.
  • The Gas Technology Institute  Exit EPA Disclaimer (GTI) has technical information, research results, and educational programs for the natural gas industry and gas customers on finding, producing, delivering, and using natural gas.

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