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| Company | Location | County | Certifications | License # |
|---|---|---|---|---|
| Nathan Lee | Lehi, UT | Uintah | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04080-OSP |
| Nelson Septic Solutions | St. George, UT | Washington | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 02941-OSP |
| New Horizon Eng. & Surv. | Enoch, UT | Iron | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 00354-OSP |
| Nick Sorge | Draper, UT | — | Onsite Wastewater Professional (Level 1) | 04394-OSP |
| Nomad Construction | Moroni, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 04607-OSP |
| Norris Brown Construction | Kanab, UT | Kane | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 00314-OSP |
| North Star Development/Alta Excaving | Heber, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 00247-OSP |
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