Proposed Rule Amendments: §§ 3.15 and 3.58

The proposed amendments to rules §§ 3.15 and 3.58, related to Senate Bill 1150 (89th Legislative Session, 2025), have been posted for public comment. Comments will be accepted until 5:00 pm on Friday, November 13, 2026. For more information, including an online comment form, please visit the RRC Proposed Rules page.

GAU Determination for a Seismic Survey

Required Documents

To request a Groundwater Protection Determination for a Seismic Survey, submit the following documents to the Railroad Commission of Texas via e-mail to gau@rrc.texas.gov, regular US Mail, or an overnight express service:

  • a letter on your company’s letterhead that includes:
    • the company’s name, address, and phone number
    • the contact person
    • email address (if available)
    • the name of the proposed seismic program
    • the county or counties in which the project is located
    • the depth of the shot holes
    • the size (in pounds) of the explosive charge used in each shot hole
    • wellbore and completion diagram
  • a map showing the shot-hole locations and the land survey lines

Expected Processing Time Frame

Once all required information is received and determined to be administratively complete, the estimated processing time for a Seismic Survey letter is seven (7) business days.



Commissioners