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Online Information and Completing Groundwater (GAU) Applications Norman Gearhart, P.G. Manager Groundwater Advisory Unit. Groundwater Advisory Unit. Purpose Provide recommendations for groundwater to be protected during oil and gas drilling and production.

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Online Information and Completing Groundwater (GAU) ApplicationsNorman Gearhart, P.G.Manager Groundwater Advisory Unit

groundwater advisory unit
Groundwater Advisory Unit

Purpose

  • Provide recommendations for groundwater to be protected during oil and gas drilling and production.
  • Evaluate Saltwater Disposal Wells for geologic isolation from the base of usable-quality water and injection below the underground source of drinking water.
  • Hydrogeological evaluation concerning groundwater contamination.
protected aquifers
Protected Aquifers

For oil and gas wells

  • Freshwater (less than 1,000 mg/l total dissolved solids, TDS), and
  • Usable-quality water (less than 3,000 mg/l TDS, waters known to be used, and waters identified by the Texas Water Development Board for use in desalination)

For saltwater injection wells in addition to the above

  • Underground source of drinking water (less than 10,000 mg/l TDS)