Monthly Feature

Middle Pecos Groundwater Conservation District

Tools & Technologies

Middle Pecos GCD uses multiple technologies to keep track of their 100+ monitoring wells. In fact, 25 of the monitoring wells have telemetry tools, like transducers or a GS 93 float help track the wells’ static water levels. Each monitoring well is also equipped with a rain gage, so one well site provides a wealth of information to the district and landowner. Other field equipment employed includes a GPS unit and an E-line for measuring water levels.

In addition to telemetry tools, the Middle Pecos GCD uses ArcGIS and LeapFrog for mapping and modeling. To further their understand of that mapping and modeling, the district contracted Allan Standen to create two models for them: one that maps water from the surface to 13,000 feet and another that maps injection wells and saltwater disposal wells in the district. There is a high level of oil and gas activity within the boundaries of the district, including over 3,000 injection wells and 50 saltwater disposal wells.


There are over 3,000 registered wells in the district, of which over 2,000 are exempt. Any well that exceeds 17.5 gallons per minute is considered non-exempt and will require a permit issued by Middle Pecos GCD. The varying conditions in the aquifers located within the district mean average well yields can vary from 400 gallons per minute (GPM) to 3,000 GPM. Middle Pecos GCD has issued four export permits covering 18 wells for groundwater to leave the district boundaries. In fact, it just issued an export permit for 10,000 ac/ft last year. In order to qualify for an export permit, the application must be deemed by the Middle Pecos GCD Board to have no adverse impact on the aquifer.

GCD Programs

Scholarship Contest

Middle Pecos GCD has three school districts within their jurisdiction, which include Fort Stockton, Imperial and Iraan. In 2016, the district started an essay contest to give high school seniors a chance to learn more about groundwater and earn a $1,000 scholarship. Students are tasked with writing an essay about groundwater. Subtopics can include the United States Geological Survey (USGS), the Texas Commission on Environmental Quality (TCEQ), the Railroad Commission (RRC), or the Texas Water Code (TWC).

Mapping Comanche Springs

One of Middle Pecos GCD’s currently evolving program is a project mapping the route of Comanche Springs above ground. Comanche Spring flows for several months in a year when adequate rainfall occurs. The mapping project will include placing informational signs on the land surface following the spring’s trail to educate residents about the underground spring formation.

Free Water Analysis

Water samples are taken at multiple locations during the summer months by the Middle Pecos GCD field technician. This sampling helps the district and the landowner know more about water quality in particular areas. A water sample is also taken for every newly drilled well. Members of the general public can also bring in samples from their home or business and have it tested free of charge.


One of the challenges Middle Pecos GCD faces relates to brackish groundwater zones. Both the classification and determination of jurisdiction of these zones is challenging within a hydrogeologically diverse area. Additional challenges include continual monitoring of the 50 oil and gas production salt disposal wells for groundwater contamination.

Helpful Resources

Find the latest Middle Pecos GCD happenings by visiting

  • Glasscock GCD
  • Texas Water Trade
  • Mid-East Texas GCD
  • Groundwater Awareness Week
  • From Drizzle to Downpours: Rainwater Harvesting Programs
  • Mesa UWCD
  • Northern Trinity GCD
  • Proposition 6: Texas Water Fund
  • 2023 Groundwater Summit Recap
  • 88th Legislative Wrap-Up
  • Southern Ogallala Conservation & Outreach Program
  • Three Iconic Springs
  • Groundwater: On a Screen Near You
  • Great Springs Project
  • Comal Trinity GCD
  • Texas Land Conservancy
  • Panola County GCD
  • Texas Playa Conservation
  • 2022 Groundwater Summit Recap
  • Wintergarden GCD
  • Camp Bullis Sentinel Landscape
  • Plum Creek Conservation District
  • EAA Education Outreach Center
  • Irion County WCD
  • Open Meetings Guide
  • Lone Star GCD
  • Meet the Executive Committee
  • 10 Years of TGS
  • Advocacy Checklist
  • Presidio County UWCD
  • GMAs and Remote Meetings
  • Pecan Valley GCD
  • EDF/Hays Trinity GCD
  • Texas Water Foundation
  • Cow Creek GCD
  • TexMesonet
  • Managing Through COVID-19
  • Reeves County GCD
  • One Water – Blue Hole Primary School
  • Harris-Galveston Subsidence District
  • Kenedy County GCD
  • 4-H Water Ambassadors
  • Brazos Valley GCD
  • Evergreen UWCD
  • USGS Oklahoma-Texas Water Science Center
  • Water Grows
  • North Texas GCD
  • High Plains UWCD
  • Prairielands GCD
  • Rusk County GCD
  • Edwards Aquifer Authority
  • Post Oak Savannah GCD
  • Guadalupe County GCD
  • Mesquite GCD
  • Hickory UWCD No. 1
  • Panhandle GCD
  • Coastal Bend & Coastal Plains GCDs
  • Gonzales County UWCD
  • North Plains GCD
  • Bandera County River Authority & Groundwater District
  • Middle Trinity GCD
  • Clearwater UWCD
  • Barton Springs Edwards Aquifer CD
  • South Plains UWCD
  • Fayette County GCD
  • Sutton County UWCD
  • Sandy Land UWCD
  • Lost Pines GCD
  • Upper Trinity GCD
  • Duval County GCD
  • Hill Country UWCD
  • Middle Pecos GCD
  • Trinity Glen Rose GCD
  • Central Texas GCD
  • Sandy Land UWCD
  • Bluebonnet GCD