| Company | Location | Certifications | License # |
|---|---|---|---|
| 2M Contract Dev., LLC | Rexburg, UT | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 02475-OSP |
| Andrew Monroy | Fredonia, UT | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04152-OSP |
| Honest Build and Preservation LLC | Miami, UT | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 04352-OSP |
| Lincoln County Planning | Kemmerer, UT | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04390-OSP |
| Lincoln County Planning & Development | Etna, UT | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 03946-OSP |
| Mikayla Hibbert | Kemmerer, UT | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 04114-OSP |
| Misty Sanderson | Afton, UT | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 04001-OSP |
| Moshe Calm | Catheys Valley, UT | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04320-OSP |
| Office of Environmental Health & Engineering | Many Farms, UT | Onsite Wastewater Professional (Level 1) | 04532-OSP |
| Quintin Simpson | Freedom, UT | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 04541-OSP |
| Synergy Engineering and Consulting | Bozeman, UT | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03546-OSP |
11 companies in the Utah DEQ certified onsite wastewater system professionals list are based in Out of State County as of 2026-07-23. Companies based elsewhere in Utah also commonly serve the county.
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