TEXAS · TCEQ REGION 07 · 17 COUNTIES
Aerobic septic systems in TCEQ Region 07 (Midland)
TCEQ Region 07 office (Midland)
10 Desta Dr Ste 350E, Midland TX 79705-4530
Main line: 432-570-1359
This office permits septic systems and takes maintenance reports for the 2 counties without a local authorized agent; the other 15 permit locally.
From TCEQ's regional office directory, read Oct 31, 2026.
TCEQ Region 07 (Midland) covers 17 Texas counties: Andrews, Borden, Crane, Dawson, Ector, Gaines, Glasscock, Howard, Loving, Martin, Midland, Pecos, Reeves, Terrell, Upton, Ward and Winkler.
15 of the 17 counties permit on-site sewage facilities through a local authorized agent (a county). The other 2 have none, so the TCEQ Region 07 (Midland) office (432-570-1359) permits systems and takes maintenance reports there.
Reports are due within 14 days after the test (30 TAC §285.7(e)(1)(B)). No county in this region has published how maintenance providers submit the report, so every county page here says so rather than guessing.
147 aerobic systems were authorized across the region from 2015 to 2025. In 2025, 15 of the region’s 1,745 on-site sewage facility authorizations were aerobic (0.9%).
Counties in TCEQ Region 07 (Midland)
| COUNTY | PERMITTING AUTHORITY | HOW TO FILE | AEROBIC 2015–25 | AEROBIC 2025 | MPs |
|---|---|---|---|---|---|
| Andrews | Andrews County | Not confirmed | 1 | 0 | 0 |
| Borden | TCEQ Region 07 - Midland | Not confirmed | 0 | 0 | 0 |
| Crane | TCEQ Region 07 - Midland | Not confirmed | 0 | 0 | 0 |
| Dawson | Dawson County | Not confirmed | 0 | 0 | 0 |
| Ector | Ector County | Not confirmed | 99 | 8 | 2 |
| Gaines | Gaines County | Not confirmed | 1 | 0 | 1 |
| Glasscock | Glasscock County | Not confirmed | 0 | 0 | 0 |
| Howard | Howard County | Not confirmed | 1 | 0 | 1 |
| Loving | Loving County | Not confirmed | 0 | 0 | 0 |
| Martin | Martin County | Not confirmed | 0 | 0 | 1 |
| Midland | Midland County | Not confirmed | 40 | 5 | 1 |
| Pecos | Pecos County | Not confirmed | 0 | 0 | 0 |
| Reeves | Reeves County | Not confirmed | 0 | 0 | 0 |
| Terrell | Terrell County | Not confirmed | 0 | 0 | 0 |
| Upton | Upton County | Not confirmed | 0 | 0 | 0 |
| Ward | Ward County | Not confirmed | 0 | 0 | 0 |
| Winkler | Winkler County | Not confirmed | 5 | 2 | 0 |
MPs are licensed OSSF maintenance providers whose license mailing address is in the county. Each provider is counted once, where it is based; many also work in neighboring counties.
Permits across the region, 2015–2025
| YEAR | ALL OSSF | SURFACE (SPRAY) | DRIP |
|---|---|---|---|
| 2015 | 1,467 | 17 | 1 |
| 2016 | 1,065 | 7 | 1 |
| 2017 | 1,178 | 12 | 1 |
| 2018 | 1,762 | 24 | 4 |
| 2019 | 2,086 | 23 | 2 |
| 2020 | 1,542 | 5 | 1 |
| 2021 | 1,265 | 8 | 0 |
| 2022 | 1,283 | 10 | 5 |
| 2023 | 1,258 | 2 | 2 |
| 2024 | 1,571 | 4 | 3 |
| 2025 | 1,745 | 8 | 7 |
Authorizations to Construct from the eleven annual TCEQ “Types of Systems Installed” reports, summed over the region’s counties. Surface irrigation and drip both require aerobic pretreatment. The statewide dataset has the CSV, and the 2025 report compares the regions.
The rules are the same in every county
- · An aerobic system with surface application is tested every four months (30 TAC §285.91(4), Table IV). How often systems are inspected.
- · Each report goes to the permitting authority and the owner within 14 days of the test (30 TAC §285.7(e)(1)(B)). The deadline rule.
- · A new aerobic system starts with a two-year service policy (30 TAC §285.7(c)). After that the owner renews the maintenance contract or, for a single-family home, may maintain the system themselves where local rules allow (§285.7(d)(4)). What the contract must say.
Common questions
Which counties are in TCEQ Region 07 (Midland)?
17 Texas counties: Andrews, Borden, Crane, Dawson, Ector, Gaines, Glasscock, Howard, Loving, Martin, Midland, Pecos, Reeves, Terrell, Upton, Ward and Winkler.
Who permits aerobic septic systems in TCEQ Region 07 (Midland)?
15 of the 17 counties permit on-site sewage facilities through a local authorized agent (a county). The other 2 have none, so the TCEQ Region 07 (Midland) office (432-570-1359) permits systems and takes maintenance reports there.
How many aerobic septic systems were permitted in the Midland region?
147 aerobic systems were authorized across the region from 2015 to 2025. In 2025, 15 of the region’s 1,745 on-site sewage facility authorizations were aerobic (0.9%).
When is an aerobic maintenance report due in TCEQ Region 07 (Midland)?
Within 14 days after the date the test is performed, everywhere in Texas. 30 TAC §285.7(e)(1)(B) requires the report to go to the permitting authority and to the system owner.
The other fifteen TCEQ regions
Data as of Oct 5, 2026, from the TCEQ authorized-agent register, the OSSF license register, the annual “Types of Systems Installed” reports and the counties’ own pages. How we research and check this. Not legal advice. Verify with your permitting authority.