Groundwater Studies, SB 2440 and Ch. 230

Senate Bill 2440 took effect on January 1st, 2024, and the modified government code states “a plat application for the subdivision of a tract of land for which the water supply source is groundwater” – must have attached a statement by a licensed engineer or licensed geoscientist in the State of Texas that certifies adequate groundwater is available for a subdivision.

This legislation references the already established Chapter 230 in the Texas Administrative Code, which is titled “Groundwater Availability Certification for Platting”. These documents are the framework for completing groundwater studies and outline the neccessary requirements of a completed study.

The Upper Trinity Groundwater District has entered into an interlocal agreement with the following entities to review those studies on behalf of the platting authority. More information about the studies can be found through the summary documents below.

  • Parker County
  • Wise County

Our office encourages developers and plat applicants to reach out to the District and schedule a meeting with our staff to provide a manual and direction on how to complete and submit the studies properly.

For more information or to schedule a meeting, call 817-523-5200 or email

    GAC Timeline

    View this document for a timeline of a GAC study and review by the District.

    Groundwater Study – Overview Info Document

    View this document for an overview of a complete groundwater study and what is required by municipalities and GCDs.

    Producible Checklist – Use this form as a template to view what documents and resources will be requested by District staff to complete a review of a submitted groundwater study alongside the form(s) in Ch. 230.

    Groundwater Availability Producibles Checklist

    Link to Chapter 230 outlining groundwater study requirements:

    Groundwater Studies

    Link to Authorizing Legislation effective 1/1/2024:

    S.B. 2440

    Looking for a geoscientist or engineer? View the state databases at the links below.

    Texas Board of Professional Engineers & Surveyors

    Texas Board of Professional Geoscientists

    Developers & Plat Applicants – complete the form below and district staff will reach out regarding submission of study materials and pump test scheduling.