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To: Community Development Department From: Steven D. Gatlin, Public Works Director Re: Water system analysis in the vicinity of County Road B-2 and Dale Street Date: October 3, 1988 INTRODUCTION The Public Works Department has been asked to review the City of Roseville's water system in the vicinity of County Road B-2 and Dale Street. Apparently questions have been raised in conjunction with the proposed Concordia development in the southeast quadrant of this intersection. The questions specifically relate to the adequacy of the city's water system and its ability to accommodate the proposed development. This brief report will attempt to review the history of the Roseville water system and, in particular, problems in the area of B-2 and Dale. Also, several alternative solutions to solve the problem are discussed. BACKGROUND The City of Roseville's water system was analyzed by the city's consulting engineer, Short, Elliott, Hendrickson, Inc., in 1975. In that report, it was noted that Roseville obtains its water from the City of St. Paul from a large 30 million gallon reservoir located west of Dale at the intersection of Alameda and Shryer. Water is pumped into Roseville's water distribution system where the pressure is raised by a pumping station on Shryer Avenue and Alameda Street. The water distribution system operates in a pressure range of 35 to 75 psi depending on the volume being pumped and other factors. When pressures fall below this minimum pumping level of 35 pounds, residents in areas where the elevation of the property is high experience some low' pressure problems. Also, if pressures exceed 75 to 80 psi, some plumbing problems within single-family residences may result. In terms of water storage, the City of Roseville has a 1.5 million gallon elevated tank near the intersection of Fairview and County Road B-2. This tank provides storage and pressure stability for the water distribution system when the pumps are not running. In the future, additional water storage may be required to satisfy the St. Paul Water Utility.