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