Castle Rock water commission to consider $2.73 million in projects
Staff recommend a second water-supply route for downtown and design work at two treatment facilities; the commission has not yet acted.
Published at
Castle Rock’s Water Commission is scheduled to consider recommending about $2.73 million in water-system projects Oct. 28, including a second supply route for downtown and design work at two treatment facilities.
Town staff recommend that the commission forward both proposals to the Town Council for approval. The downtown project would authorize a $2.13 million construction contract plus a 10% contingency, for a total of about $2.34 million. The treatment-facility design agreement would authorize $349,068 plus a contingency, totaling $383,975.
The Front Street Downtown Connection would install about 2,600 feet of water main between Front and Wilcox streets, connecting downtown to the system west of Interstate 25. Staff say downtown now relies on one 12-inch main, and repairs to it could interrupt the area’s entire water supply. The new connection is intended to provide redundancy and support current and future development.
Construction is planned from December 2026 through May 2027. The project could require temporary traffic or trail changes, access arrangements and water-service interruptions; staff say affected residents, businesses and property owners would receive advance notice. The work also requires coordination around Douglas County High School traffic and railroad work. The staff memo does not specify dates or durations for closures or service interruptions.
The treatment-facility design proposal covers filter and chemical-system work at Meadows Water Treatment Plant and additional chlorine storage at Ray Waterman Regional Water Treatment Center. At Meadows, staff report that three of the plant’s eight filters do not perform as expected. The plant is rated to produce 8 million gallons a day but typically produces no more than about 6 million. Designers would assess the plant’s hydraulics and operations, replace filter underdrains and plan a change from pressurized ammonia gas to liquid ammonium sulfate. Staff say the change would improve operating safety; whether the work could increase production will be evaluated during design.
At Ray Waterman, the proposed design would explore additional chlorine storage. The facility has 2,200 gallons of storage, which staff say is about a seven-day supply during high-demand season and leaves the Town exposed to delivery delays. The design agreement is expected to run through summer 2027.