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| Company | Location | County | Certifications | License # |
|---|---|---|---|---|
| W.L. Staplesdesigns | Alton, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 03420-OSP |
| Wasatch County Health Dept | Heber City, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 00047-OSP |
| Wasatch County Health Dept. | Heber City, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 02041-OSP |
| Watson Engineering Company Inc. | Cedar City, UT | Iron | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 02030-OSP |
| Webb’s Select-A-Service | Altamont, UT | Duchesne | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03703-OSP |
| Weber County | Ogden, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 03695-OSP |
| Weber County Corp. | Ogden, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 02005-OSP |
| Weber County Engineering | Ogden, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03883-OSP |
| Weber County Engineering | Ogden, UT | — | Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03983-OSP |
| Weber-Morgan Health Department | Ogden, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 00419-OSP |
| Weber-Morgan Health Department | Ogden, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 02055-OSP |
| Weber-Morgan Health Department | Ogden, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 02220-OSP |
| Weber-Morgan Health Department | Ogden, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04075-OSP |
| Weber-Morgan Health Department | Ogden, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04587-OSP |
| Weber-Morgan Health Dept. | Ogden, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 02760-OSP |
| Weber-Morgan Health Dept. | Ogden, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03261-OSP |
| Weber-Morgan Health Dept. | Ogden, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03281-OSP |
| Weber-Morgan Health Dept. | Ogden, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03391-OSP |
| Weller Excavation LLC | Kamas, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 02610-OSP |
| Wes Ivory Excavating | Moroni, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 00124-OSP |
| Western River Development Inc | Virgin, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 00425-OSP |
| Western States Enterprises | Washington, UT | Washington | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04170-OSP |
| Western Utility Co. | Spanish Fork, UT | Uintah | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03386-OSP |
| Western View Construction | Ogden, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 02515-OSP |
| Western View Construction | Ogden, UT | Washington | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04663-OSP |
| Weston Ottesen | Spanish Fork, UT | Uintah | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04563-OSP |
| White Pine Engineering | Smithfield, UT | Cache | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03938-OSP |
| Wild West Excavating LLC | Coalville, UT | Summit | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04512-OSP |
| Wilding Engineering | Riverton, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 02731-OSP |
| Wilding Engineering | Blufftale, UT | Uintah | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 02775-OSP |
| William"Bill" Balaz Jr. | Grand Junction, UT | Grand | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 00344-OSP |
| WittyTUSS Excavation & Garden | Orem, UT | Wasatch | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04509-OSP |
| Wright Solutions UT, LLC | Vernal, UT | Uintah | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 04290-OSP |
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