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

  • Hydraulic Fracturing for Oil and Gas: Impacts from the Hydraulic Fracturing Water Cycle on Drinking Water Resources in the United States

    Read the final assessment.

  • Read the executive summary.

  • Read the Hydraulic Fracturing Drinking Water Assessment By the Numbers

EPA released the final report, “Hydraulic Fracturing for Oil and Gas: Impacts from the Hydraulic Fracturing Water Cycle on Drinking Water Resources”. Read the executive summary and the entire report.

Final Assessment
  • Executive Summary
  • Full Assessment Report
  • Final Assessment Report Fact Sheet
  • SAB Peer Review of Assessment Report
  • Frequently Asked Questions
  • Press Release
Research Conducted
  • Hydraulic Fracturing Water Cycle
  • Research Approaches
  • Quality Assurance and Integrity
  • Technical Stakeholder Engagement
Publications
  • EPA Published Research
  • Peer Review of Study Publications
  • Draft Chemical Database 2015

Additional Information

  • Hydraulic Fracturing Study Fact Sheets
  • Multi-Agency Collaboration on Unconventional Oil and Gas Research
  • EPA Hydraulic Fracturing - Agency Main Page
  • Archive

Additional EPA Information

  • Questions and Answers about the final assessment
  • Hydraulic Fracturing Study Fact Sheets
  • Multi-agency collaboration on unconventional oil and gas research 
  • EPA Hydraulic Fracturing - Agency Main Page
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Last updated on March 4, 2022
United States Environmental Protection Agency

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