GroundRosterDonald Wayne Jr MarlowLicensed
| Name | Donald Wayne Jr Marlow |
| License number | MP0000773, OS0018650 |
| License type | OSSF Installer II · OSSF Maintenance Provider |
| License status | Current — TCEQ OSSF licensing export (exported 2026-08-17) |
| License expires | 2028-12-31 |
| County | Polk County, Texas |
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What this license covers
- Installation / repair: licensed to build and install septic tanks and drainfields, and to repair or replace failed ones.
- Maintenance: licensed to service and maintain aerobic and other advanced treatment systems on an ongoing contract, including the periodic checks those systems require.
How to verify this license
We publish the license details exactly as they appear in Texas's official licensing records; we do not vouch for the business itself. Before hiring, look up license #MP0000773, OS0018650 directly with the state, confirm it is still active, and ask for a current certificate of insurance.
Source: Texas Commission on Environmental Quality (TCEQ) - OSSF occupational licensing, last checked 2026-08-17. Verify at the official source.
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