GroundRosterJoe Sherwin
License details
| License number | OS0038530 |
| License type | OSSF Site Evaluator |
| License status | Current, TCEQ OSSF licensing export (exported 2026-08-17) |
| License expires | September 30, 2026: the expiry date in our copy (as of August 17, 2026) has passed. Check with the issuing agency. |
| Based in | Walker County, Texas |
"Based in" is the city and county of the address on the business's license record.
What this license covers
- Site testing: licensed to run percolation tests and evaluate soils to determine what kind of system a site can support.
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 #OS0038530 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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See every listing based in Walker County.