Commissioners postpone Mountain View subdivision; request hydrology tests and clearer easement details

Carbon County commissioners on June 19 postponed action on the Mountain View preliminary plat, a proposed 19‑lot subdivision of about 57 acres, after an extended public hearing that focused on water availability, irrigation access and road impacts.

Planning staff and the applicant’s surveyor, Corey Wilhelm of Wilhelm Land Surveying, presented the preliminary plat and supporting materials, outlining proposed lot sizes (roughly 2–5 acres), an internal private road (the Neli/Nelly Loop) and a plan to allocate 0.4 acre‑feet of water per lot (roughly 10 acre‑feet total) to qualify new wells as exempt. The application proposes transferring 50 shares from the Orchard Irrigation Canal to a homeowners association for on‑lot irrigation and includes covenants limiting irrigation and requiring weed‑management.

Commissioners, planning staff and dozens of members of the public pressed the applicant for more hydrologic evidence. Residents and landowners raised concerns that new wells could affect existing users in a small, shallow portion of the Colorado Shale formation that underlies the site. One speaker representing the planning staff noted the county’s duty to evaluate both legal and physical availability of water and referenced a recent Broadwater County court decision as a caution to the board; commissioners asked specifically for a third‑party hydrologist opinion and a drawdown test that would support the application’s conclusions.

Public commenters also raised traffic and safety issues. The applicant’s traffic study estimated roughly 170 additional vehicle trips per day at full build‑out and recommended upgrading the stop sign at the East River Road intersection. Nearby town officials and residents urged the county to require clearer protections for irrigation head gates and to confirm maintenance responsibilities for county roads that could see increased wear.

The county planning board had recommended approval with 23 conditions, including a 20‑foot head‑gate access easement, weed‑management plans, a requirement that the HOA maintain the private road to subdivision standards, DEQ review of wastewater and stormwater, and a $17,000 cash in lieu of parkland dedication based on 2.867 acres. The planning board’s recommended conditions also call for covenants banning flood irrigation and for bear‑proof garbage containers.

After discussion, the commission moved, seconded and approved postponement of the preliminary plat to July 17 at 11:00 a.m. The board specified the information it expects before that date: a signed hydrologist memorandum that clarifies which aquifer the wells would draw from and addresses impacts on adjacent wells; an appropriate drawdown test; a written statement about any anticipated impacts to the Clark’s Fork River; written documentation from the Orchard Irrigation Canal company about required easement width; and clarification on whether a county road easement shown in title records would have to be abandoned or retained.

The postponement preserves the planning board’s recommended conditions on the record while allowing the applicant time to supply the additional technical material the commission identified as necessary for a defensible decision.