Ashley Valley Water Treatment Plant
The Ashley Valley Water Treatment Plant
is located north of Vernal on Doc's Beach Hill. The in-house state
certified laboratory at the plant performs all the required bacteriological
This plant serves Vernal City. With a capacity of 15 MGD, this plant treats water for the Uintah Water Conservancy District and Vernal City. The raw water is conveyed to the plant from Ashley Springs and from Red Fleet Reservoir.
Ashley Springs, a natural flowing stream, is the primary source of water for the plant. When flows decrease, water from Red Fleet Reservoir is pumped to the plant. Water quality in both sources is very good with very few seasonal exceedences of water quality criteria. There is not a watershed management program, but the District has monitored the reservoir for nutrient enrichment and plans to continue monitoring in the future.
|Type: Direct Filtration|
|Capacity (design): 15 million gallons a day|
|Ultimate Design Capacity: 30 million gallons a day|
|Water Sources (2): Red Fleet Reservoir and Ashley Springs|
|Systems Served: Vernal City & Uintah Water Conservancy District|
|Filtered Water Reservoir: 1 million gallons a day|
|Total Construction Cost: $8,463,300|
|Contractor: Clegg Construction Company|
|Design Engineer: Horrocks - Carollo|
|Plant Process: Direct filtration, flocculation basins (3), detention time (30 mins), filters (6) filtration rate (5 GPM/Ft2), declining rate filters, filtered water reservoirs, wash water reclamation plant, automation, monitoring, and alarm system.|