Agenda - Council - 12/12/2017 - Laserfiche WebLink

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E. WATER STORAGE AND DISTRIBUTION SYSTEM Water storage and water system distribution improvements were evaluated to ensure adequate pressure and fire flow are available for both current and future conditions. The water distribution system for the City of Ramsey was modeled using the Watercad Hydraulic Network Model. In designing and analyzing system simulations, a set of design criteria was established. Recommended Standards for Water Works recommends that a minimum pressure of 20 psi be maintained at all times in the system, with normal working pressure in the 35-70 psi range. Fire flow is determined at a minimum residual pressure of 20 psi in order to correlate with the guidelines of the Insurance Services Office (ISO). Fire flows ranges were established between 1500 and 3500 gpm. The water tower levels were established at one-half total capacity during fire flow simulations. The City of Ramsey has adequate storage for the design period. Capital improvements over the next 20 years will include maintenance and painting of the existing towers. Distribution system master planning is "a road -map" to assist the City of Ramsey in deteimining the optimal size and location for future major water distribution improvements. The purpose is to ensure adequate pressure and flow is maintained throughout the entire distribution system at any given time and at the most economical cost. The timing of implementation of new water distribution mains will be determined based on development within the City. Table ES.1 provides a summary of the proposed water distribution system improvements. These improvements generally can be categorized as follows: Table ES.1 Distribution System Improvements 2012-2031 City of Ramsey, Minnesota Project Estimated Capital Cost Southwest Loop $2,160,000 North Central Loop $2,900,000 County Road 57 $380,000 CSAH 5/153rd Street $650,000 156th Lane NW $325,000 City of Ramsey, Minnesota — R13.104504 Page 6 Comprehensive Water System Study Prepared by Bolton & Menk, Inc.