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Park City Begins Construction on Boothill Water Project
To see the Boothill Pipeline Project Map (click here)
Construction has begun on the Boothill Valve Vault (above the City Cemetery on Kearn¡¯s Blvd) and Pipelines Project, designed to provide a redundant water supply for Old Town and Deer Valley, ensure adequate service and fire flow for Park Meadows, Prospector, and Empire Pass, provide better treatment, and provide capability to blend water to address the Spiro Tunnel antimony issues. The new valve vault will serve the existing Boothill tank and a future supplementary tank. Several new water transmission lines will also be installed as part of the project, including:
- A 12" - diameter supply water line designed to provide water to the existing Boothill tank from the Park Meadows/Divide wells;
- A 16" - diameter transmission water line designed to provide water from the existing tank to the distribution system at Holiday Ranch Loop Road;
- And a 20" - diameter transmission water line designed to provide water from the existing tank to Monitor Drive and the future Boothill Pump Station.
The valve vault and pipeline work is the first part of a multi-phase project at Boothill. Future phases will include the construction of a new supplementary subsurface water tank, and a new pump station.
City residents near the Boothill area will be able to watch the progress of the vault and pipeline construction project throughout the summer. Most of the work will be completed by July 1, 2005, with final completion scheduled for July 29, 2005. During construction portions of the trails on Boothill will be closed. Traffic on Monitor Drive and Holiday Ranch Loop Road will only infrequently be impacted when materials or equipment are being offloaded. Partial or full lane closures are estimated for about 3-4 days.
Park Meadows Well -- Water Treatment Process
In the summer of 2002 the Park Meadows Well capacity was rapidly declining as a result of collapse of the bore. The rapid decline in flow capacity caused low confidence that water from the well would be available for the summer of 2002.The well was redrilled about 100 feet from the original well and put back on line in July 2002. Unfortunately, drilling of the new well opened up a conduit through rock fractures and caused the well water to be "under the influence of surface water." In order to preserve the well as a water source for Park City, the water must be treated. This involves installation of treatment equipment on site. Park City staff is in preliminary stages of engineering to treat this valuable water supply. The goal is to have the Park Meadows Well back online by the end of summer 2005.
Spiro Water Treatment Plant -- Expanded Finished Water Wet Well
A larger finished water clearwell is required at the Spiro Water Treatment Plant to provide flow management of treated water into the distribution system. Construction of the clearwell began in late September 2004 and will be completed by May 30, 2005. (Note: A clearwell is an underground reservoir where treated water from the plant is stored until there is a demand for water.)
Spiro Water Treatment Plant -- Removal of Antimony
Park City will perform piloting of the Spiro Water Treatment Plant treated water in the Spring of 2005 to identify a cost effective process for the removal of antimony. Methods of blending different water sources will also be refined throughout the summer to continue to ensure system concentrations of antimony below the maximum contaminant level of 6 ppb. The goal is to have a process identified and be in the design process by the end of 2005.
Judge Tunnel - Water Treatment Facility
In August 2002, Park City staff began the planning effort to build a water treatment facility at the Judge Tunnel. Following a qualifying process, a contract was awarded to Carollo Engineers in November 2002 for design of the plant. Over $1 million in federal funding has been committed for construction of the Judge Water Treatment Plant which required that Park City complete an environmental assessment (EA) of the proposed plant location. The EA was completed on September 27, 2004, with a letter from the United States Environmental Protection Agency approving the Finding of No Significant Impact. Process pilot studies will be performed during the Summer of 2005 to evaluate treatment processes for addressing groundwater under the influence of surface water. Final design will begin in parallel with process piloting. The plant is expected to be on-line in the Fall of 2006.
Spiro Water Treatment Plant Arsenic Removal Upgrade
In 2002 the EPA reduced the arsenic maximum contaminant level (MCL) from 50 parts per billion (ppb) to 10 ppb effective January 20, 2006. Park City set a goal of reducing arsenic down to 5 ppb. After extensive pilot testing of numerous arsenic reduction processes, a cost-effective process was selected in December 2002 that meets the goal of 5 ppb. The Spiro Water Treatment Plant upgrade design was completed in September 2003 and construction began in October 2003 to retrofit the current Spiro treatment process to reduce arsenic levels to 3 to 5 ppb. On April 20, 2004 the State Division of Drinking Water issued an operating permit for the Spiro Water Treatment plant. The arsenic treatment process is now on-line and meeting Park City's goal of 5 ppb. Park City is well ahead of most water systems, meeting the January 2006 arsenic reduction deadline by almost 2 years.
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