Small Wastewater (Septic) Permit in Unincorporated Uinta County, Wyoming

Unincorporated Uinta County requires a small wastewater (septic) permit for: Required for construction, installation, or modification of any small wastewater (septic) system; Systems must be installed by a licensed installer, OR the property owner may install their own system under guidance of the county's Small Wastewater Resolution and the Wastewater Engineer; Process: (1) obtain the Small Wastewater Permit Application from Planning & Zoning; (2) conduct groundwater observation cut and percolation tests; (3) submit the septic permit application with design layout to Planning & Zoning; (4) obtain the county-issued Small Wastewater Permit to Construct; (5) install per approved design; (6) Planning & Zoning inspects the system BEFORE backfilling; (7) obtain the Small Wastewater Facility Permit with permission to backfill; The county can require excavation/removal/rebuild of a non-compliant system found during inspection; Issuance of a permit to construct does not relieve the permittee of responsibility for proper design, construction, operation, and maintenance. If your project isn't listed, confirm with Uinta County Planning & Zoning Department (Planning & Development) at (307) 783-0301 (Evanston); (307) 782-7432 (Bridger Valley); (307) 783-0318 (Planning & Zoning direct) before starting work.

In Unincorporated Uinta County, the published Small Wastewater Permit application fee is: $150.00. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Plan review for a small wastewater (septic) permit in Unincorporated Uinta County typically runs 5–20 business days. This is an estimate, not a published figure — confirm current review times with Uinta County Planning & Zoning Department (Planning & Development) at (307) 783-0301 (Evanston); (307) 782-7432 (Bridger Valley); (307) 783-0318 (Planning & Zoning direct).

You'll need: Small Wastewater (SWW) Design Application Package (PDF). Depending on your project, Unincorporated Uinta County may also ask for: Site Preparation for Percolation Testing & Observation Pit Pamphlet (PDF). See the required-documents checklist on this page for details on each.

Unincorporated Uinta County requires 1 inspection(s) for a small wastewater (septic) permit, in order: Pre-Backfill Inspection. Schedule each through Uinta County Planning & Zoning Department (Planning & Development) ((307) 783-0301 (Evanston); (307) 782-7432 (Bridger Valley); (307) 783-0318 (Planning & Zoning direct)).

Apply through Uinta County Planning & Zoning Department (Planning & Development) at Uinta County Courthouse, 225 9th Street, Evanston, WY 82930-3415. Phone: (307) 783-0301 (Evanston); (307) 782-7432 (Bridger Valley); (307) 783-0318 (Planning & Zoning direct), email: Direct staff emails now published on the Planning & Development page (verified 2026-07-17): Darby Noorda, Administrative Assistant — danoorda@uintacountywy.gov (the Land Use/Building Permits subpage shows this same contact as danoorda@uintacounty.com — a domain inconsistency on the county's own site); Kent Williams, Planner — kewilliams@uintacountywy.gov; Gary Welling, GIS Coordinator/Dept. Head — gary.welling@uintacountywy.gov. No single general department inbox found.. Office hours: Monday–Friday, 8:00 AM – 5:00 PM. Official information: https://www.uintacountywy.gov/46/Planning-Development.

Unincorporated Uinta County, Wyoming has adopted: NO countywide building code and NO general building permit for private construction in unincorporated Uinta County. Per the Wyoming State Fire Marshal's Office 'LOCAL AND STATE JURISDICTIONS' chart (updated 7/7/2026, re-verified 2026-07-17), Uinta County at the county (unincorporated) level shows BLDG INSP/PR = S/S and ELEC INSP/PR = S/S — the county has NOT taken general building-permit delegation under W.S. § 35-9-121; the State of Wyoming retains building and electrical jurisdiction over private construction in the unincorporated county.; CONFIRMED against the county's own site: Uinta County's 'Land Use / Building Permits' page (title notwithstanding) describes only a Land Use Certificate/Use Certificate process under the Uinta County Land Use Plan Resolution 23-02 (adopted under W.S. Title 18, Chapter 5, § 18-5-201) — a zoning/land-use approval, NOT an IBC/IRC construction permit with plan review and building inspections.; Uinta County Resolution 24-44 (Nov 2024) repeals the 2006 International Fire Code and adopts the 2024 'ICC-Codes' International Building Code text — but this is done under the county's DELEGATED FIRE-PREVENTION authority (W.S. § 35-9-121, 'Council for Fire Prevention', county acting 'as the delegated authority of the State Fire Marshal/Director') for fire-code enforcement purposes, not a general building-permit-issuing delegation for private construction. This is consistent with the WSFM chart's BLDG INSP/PR = S/S classification for the county.; Electrical work in unincorporated Uinta County is NOT locally regulated — per the WSFM chart (ELEC INSP/PR = S/S) electrical permitting/inspection is performed by the Wyoming State Fire Marshal's Office (Chief Electrical Inspector) under the state's default statewide electrical program (W.S. § 35-9-119).. Local amendments apply — see the Unincorporated Uinta County overview page for the full list.