GroundRosterTharp PlumbingLicensed
License details
| License number | OSWWI0328 |
| License type | Licensed Onsite Wastewater Installer - Tier 2 |
| License status | In Effect, on SC DES's OSWW licensed-contractor registry |
| Based in | Williamston, Anderson County, South Carolina 29697 |
"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 #OSWWI0328 directly with the agency that issued it, confirm it is still active, and ask for a current certificate of insurance.
Source: South Carolina DES - OSWW licensed-contractor registry, last checked 2026-10-03. Look it up at the issuing agency.
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