Maverick County, Texas

Appraisal district

From the Texas Comptroller's directory page for Maverick County. The Comptroller says most questions about property appraisal or property tax go to the county's appraisal district or its tax assessor-collector.

Petroleum storage tanks

TCEQ's petroleum storage tank facility file lists 125 facilities in Maverick County: 63 active, 60 inactive and 2 pending. The file holds 84,393 facilities statewide, and TCEQ says its tank datasets are current as of September 2nd, 2026. A registration says a tank system exists or existed. It does not say whether the tank leaked. See Petroleum Storage Tank registrations.

The counts are the records in TCEQ's Facility Extract (pst_fac.txt) whose site location names the county, by the facility status the file gives. File read October 4, 2026.

Leaking petroleum storage tanks

TCEQ's leaking petroleum storage tank dataset lists 38 sites in Maverick County: 37 with a closure date and 1 without. The dataset holds 29,850 sites statewide and was last updated October 3, 2026. The listing tells you a case exists. The reports and letters are in the case file. See Leaking Petroleum Storage Tank cases.

The counts are the records in TCEQ's Leaking Petroleum Storage Tank (LPST) Sites dataset on the Texas Open Data Portal whose county is Maverick. File read October 4, 2026.

Closed landfills

TCEQ's historical closed landfill inventory holds 3 records for Maverick County, of 2,772 statewide. The file lists old, closed, unnumbered landfills that operated before permits were required, along with unauthorized landfills and miscellaneous illegal dumps and disposal sites. TCEQ publishes it as it was delivered to the councils of governments in the late 1990s and says it is not updated. For a closed landfill question in a county, TCEQ says to contact the council of governments for that county. See Closed Landfill Inventory.

The count is the number of records in TCEQ's file msw-unum-texas.xlsx that name the county. File read October 4, 2026.

TCEQ regional office

The written follow-up report on a reportable spill goes to the TCEQ regional office. See Spill reports.

Railroad Commission district

The Railroad Commission of Texas keeps the records of contamination from oil and gas activity. Its Oil & Gas Counties and Associated Districts table gives the oil and gas district and the district office for Maverick County.

• Railroad Commission Operator Cleanup Program
• Railroad Commission Voluntary Cleanup Program
• Railroad Commission Brownfields Response Program

The agency's own pages govern. This page is a reference copy. Check the agency's page before relying on an office or a phone number.