• FracFocus is continuing to evolve and expand its performance and versatility by providing more than a dozen enhancements including: 

    • Expand the public’s ability to search records
    • Improve data accuracy
    • Provide extraction of data in a “machine readable” format
    • Update educational information on chemical use, oil & gas production    and potential environmental impacts

    These upgrades will be designed to dramatically enhance the site’s functionality for the public, state regulatory agencies and industry users. 

    Adding more participating companies and reported wells from across the country, FracFocus’ continued success is the result of state and federal government agencies and the oil and natural gas industry to provide public transparency.

    Find Out More
  • This technique uses a specially blended liquid which is pumped into a well under extreme pressure causing cracks in rock formations underground. These cracks in the rock then allow oil and natural gas to flow, increasing resource production.

    Learn More About Casing
  • Casing is the multiple layers of steel and cement inside the drilled hole used to protect water aquifers. The specific length, thickness, strength and composition of casing is regulated at the state level.

    Learn More About Casing
    Illustration Courtesy of the Texas Oil & Gas Association.
  • Use the interactive map to find regulations per state as well as contact information for groundwater protection and oil and natural gas production.

    Find Regulations Now

FracFocus machine-readable data now available!

FracFocus is pleased to announce the release of disclosure data to the public in machine-readable (SQL) format.

By clicking the button below you may download a ZIP file that contains a copy of the disclosure database.

More About Chemical Data »

Groundwater Protection: Priority Number One

Oil and natural gas producers have stringent requirements for how wells must be completed. The genesis of these requirements is water safety.

Casing is the first line of defense used to protect freshwater aquifers.

More About Groundwater Protection »

Find Well

Search for nearby well sites that have been hydraulically fractured to see what chemicals were used in the process.

  • Where does the water used in hydraulic fracturing come from?

    It comes from many sources including surface water bodies such as ponds, lakes, and streams, municipal authorities, groundwater wells, "produced water" (water that comes to the surface during oil and gas production), and re-cycled water from other hydraulic fracturing jobs.  Read more...

  • Is my groundwater safe to use?

    This depends upon many factors including:

    1. The level of chemicals in the groundwater; whether naturally occurring or introduced. (NOTE: The Maximum Contaminant Level (MCL) for drinking water was established by the EPA and can be found on their website at: http://water.epa.gov/drink/contaminants/index.cfm .  It is important to note, however, that not all chemicals, compounds or elements have an MCL.  For example natural gas does not have an MCL; and
    2. Your individual tolerance to some chemicals.  While some chemicals such as Benzene can be toxic to everyone in quantities as low as a few parts per billion, the toxicity of other additives depends upon the individual.  For example, some people are sensitive to Sodium due to conditions like high blood pressure.  Consequently, a tolerable level of sodium for them might be lower than for a person without a similar condition.  However, only you and your doctor can determine a safe level of exposure for you.  To see a more comprehensive evaluation of chemical toxicity you should visit the website of the U.S. Environmental Protection Agency Integrated Risk Assessment System (IRIS); and
    3. The use to which the groundwater is put (e.g. will it be used for human consumption, livestock consumption, irrigation, washing or bathing etc…). 

    The best way to determine if your groundwater is fit for its intended use is to have it analyzed by an accredited laboratory for all constituents of concern and to have that analysis evaluated by a qualified professional such as a toxicologist.  You can often obtain a list of accredited laboratories from your County Extension Agent, State Water Quality Agency or local Health Department.


  • What happens to chemicals after they are pumped downhole?

    Chemicals used in hydraulic fracturng are often transformed or degraded by their interaction with formations and formation fluids.  For many chemicals of concern a recent presentation made by Dr. Angus McGrath of the environmental consulting company Stantec entitled "Fate and Transport of Select Compounds of Interest in Fracing Fluids" describes the fate of chemicals.  It is available on the USEPA website at


All FAQs »
Ground Water Protection Council Interstate Oil and Gas