| Company | Location | Certifications | License # |
|---|---|---|---|
| Dozerboy LLC | Meeker, OK | Installer (Subsurface, Lagoon, Aerobic Spray) | 639 |
| Herrmann Construction | Chandler, OK | Installer (Subsurface, Lagoon, Aerobic Spray) | 226 |
| K & M Excavation & Septic | Chandler, OK | Installer (Subsurface, Aerobic Spray) | 1094 |
| K&M Excavation and Septic | Stroud, OK | Septage Hauler | 825 |
| Linn's Plumbing LLC | Chandler, OK | Installer (Aerobic Spray) | 1245 |
| Oklahoma Septic & Cellar LLC | Meeker, OK | Installer (Subsurface, Aerobic Spray) | 1065 |
| Oklahoma Septic & Cellar LLC | Meeker, OK | Installer (Aerobic Spray) | 916 |
| Oklahoma Septic & Cellar, LLC | Meeker, OK | Septage Hauler | 731 |
| R and L Backhoe | Prague, OK | Installer (Subsurface, Aerobic Spray) | 815 |
9 companies in the Oklahoma DEQ certified septic installers and licensed septage pumpers/transporters are based in Lincoln County as of 2026-07-23. Companies based elsewhere in Oklahoma also commonly serve the county.
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