| Company | Location | Certifications | License # |
|---|---|---|---|
| Aaron Holland | Moab, UT | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04567-OSP |
| Barber Excavation | Moab, UT | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04693-OSP |
| Hunter Shingleton | Moab, UT | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03858-OSP |
| Mike Huitt Construction, Inc. | Moab, UT | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03856-OSP |
| Moab Contractors Collective | Moab, UT | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 04257-OSP |
| Moab Geotechnical Group | Moab, UT | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04175-OSP |
| Moab Geotechnical Group LLC | Moab, UT | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03731-OSP |
| Ruff N Tuff Services LLC | Moab, UT | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 04507-OSP |
| Southeast Utah Health Dept. | Moab, UT | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 02700-OSP |
| Southeast Utah Health Dept. | Moab, UT | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03311-OSP |
| Southeast Utah Health Dept. | Moab, UT | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03988-OSP |
| William"Bill" Balaz Jr. | Grand Junction, UT | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 00344-OSP |
12 companies in the Utah DEQ certified onsite wastewater system professionals list are based in Grand County as of 2026-07-23. Companies based elsewhere in Utah also commonly serve the county.
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