GroundRosterHennessey Septic Tank LLCLicensed
| Name | Hennessey Septic Tank LLC |
| License number | 843, 321 |
| License type | Certified Installer ยท Licensed Septage Pumper/Transporter |
| License status | Active - DEQ certified installer; Active - DEQ licensed septage pumper/transporter |
| Location | Hennessey, Oklahoma 73742 |
| Service area | Subsurface, Aerobic Spray |
| Phone | (405) 853-1367 |
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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.
- Pumping / cleaning: licensed to pump out and clean septic tanks, service them, and haul the waste.
How to verify this license
We publish this listing exactly as it appears in Oklahoma's official licensing records; we do not vouch for the business itself. Before hiring, look up license #843, 321 directly with the state, confirm it is still active, and ask for a current certificate of insurance.
Source: Oklahoma DEQ - Certified Installers + Oklahoma DEQ - Licensed Septage Pumpers and Transporters, last checked 2026-08-19. Verify at the official source.
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