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Castle Pines North Metropolitan District South Tank 24-Inch Water Line Castle Pines, Colorado This water line was constructed to serve Castle Pines North Metropolitan District’s new 1.5 million gallon storage tank. A portion of the 24-inch main, parallels the existing 20-inch main, providing supply redundancy and flexibility for the operation and maintenance of the tank farm. The 5,800 feet of ductile iron pipe included two golf course fairway crossings and 3,800 feet of rock pre-trenching up to 14 feet deep. East Cherry Creek Valley Water and Sanitation District Meurer & Associates designed this well pump station using a variable frequency drive (VFD) on each of the two deep aquifer well pumps. The 275 Hp Arapahoe formation well pump produced 400 gpm and required a 325 KVA VFD, while the 170 Hp Laramie-Fox Hills formation pump produced 250 gpm using a 325 KVA VFD. A harmonic control unit was also designed to help control electrical system harmonics and the resulting noise created by the transformers. Design of the station included coordination with the park district and an adjacent developer to fit into the surrounding development. Lakehurst Water and Sanitation District This project consisted of 9,500 feet of 16-inch ductile iron water line including two long bored casings under major roads. Since the project is located in old road right-of-ways, there were many challenges including existing utility conflicts, numerous connections, construction phasing, and traffic control and access throughout construction. Meurer & Associates performed a preliminary design that involved hydraulic modeling, permitting, design, bid coordination, and construction administration and observation. Northern Douglas County Water and Sanitation District Southwest Metropolitan Water and Sanitation District The Hogback Pump Station supplies water for domestic needs and fire flows in a “closed pressure zone” in Southwest Metropolitan Water and Sanitation District. Four 125 Hp pumps with variable frequency drives (VFD) produce 5,000 gpm with one pump in reserve. A 400 KW diesel engine driven emergency generator meets all backup power needs in the event of a power failure. The pumps and generator are housed in an architecturally striking brick building that fits into the surrounding open space, school, apartment, and commercial area. |
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