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  2. EPA's Study of Hydraulic Fracturing and Its Potential Impact on Drinking Water Resources

Hydraulic Fracturing Study Fact Sheets

Click on a fact sheet to learn more about EPA’s Study of the Potential Impacts of Hydraulic Fracturing on Drinking Water Resources. 

Overview of EPA's Final Assessment

Analysis of Existing Data

  • EPA Analysis of FracFocus Data 1.0 Fact Sheet
  • Review of State and Industry Spill Data: Characterization of Hydraulic Fracturing-Related Spills Fact Sheet
  • Review of Well Operator Files for Hydraulically Fractured Oil and Gas Production Wells: Well Design and Construction Fact Sheet
  • Review of Well Operator Files for Hydraulically Fractured Oil and Gas Production Wells: Hydraulic Fracturing Operations Fact Sheet

Case Studies

  • Retrospective Case Studies Fact Sheet
    • Raton Basin, Colorado
    • Killdeer, North Dakota
    • Northeastern Pennsylvania
    • Southwestern Pennsylvania
    • Wise County, Texas

Laboratory Studies

  • Sources Contributing to Inorganic Species to Drinking Water Intakes During Low Flow Conditions on the Allegheny River in Western Pennsylvania Fact Sheet

Scenario Evaluations

  • Lawrence Berkeley National Laboratory: Subsurface Migration Modeling Fact Sheet
  • Case Study Analysis of the Impacts of Water Acquisition for Hydraulic Fracturing on Local Water Availability Fact Sheet

EPA's Study of Hydraulic Fracturing and Its Potential Impact on Drinking Water Resources

  • Final Assessment
  • EPA Published Research
  • Fact Sheets
  • Questions & Answers about the Final Assessment
Contact Us about EPA's Hydraulic Fracturing Study
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on March 14, 2025
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