GroundRosterDavid Jasper Preston
License details
| License number | OS0037673 |
| License type | OSSF Installer I |
| License status | Current, TCEQ OSSF licensing export (exported 2026-08-17) |
| License expires | August 31, 2026: the expiry date in our copy (as of August 17, 2026) has passed. Check with the issuing agency. |
| Based in | Waller County, Texas |
"Based in" is the city and county of the address on the business's license record.
What this license covers
- Installation / repair: licensed to build and install septic tanks and drainfields, and to repair or replace failed ones.
How to verify this license
We publish the license details exactly as they appear in the public licensing records of the agency that issued the license; we do not vouch for the business itself. Before hiring, look up license #OS0037673 directly with the agency that issued it, 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. Look it up at the issuing agency.
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