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RIVERSIDE PUBLIC UTILITIES <br />Board Memorandum <br />BOARD OF PUBLIC UTILITIESDATE: JANUARY 22, 2018 <br />ITEM NO:5 <br />SUBJECT:PURCHASE OF ULTRASONIC WATER METERS NEEDED FOR LARGECOMPOUND <br />WATER METER REPLACEMENTS – $263,600 <br />ISSUE: <br />Approve an expenditure of $263,600for the purchase of Master Meter Octave Ultrasonic water meters <br />ranging in size from three-inch to ten-inchfrom Core & MainLP for large compound water meter <br />replacements at various locations throughout the Cityof Riverside’s water service territory. <br />RECOMMENDATION: <br />That the Board of Public Utilities approve an expenditure of $263,600for the purchase of Master Meter <br />Octave Ultrasonic water meters ranging in size from three-inch to ten-inch from Core & Main LP for large <br />compound water meter replacements at various locations throughout the City of Riverside’swater <br />service territory. <br />BACKGROUND: <br />The City of Riverside Public UtilitiesDepartment(RPU) delivers water to roughly65,000 customers and <br />measures the water consumed by each customerusing a meter located at each water service. Water <br />meters are sized according to the individual customer’s water consumption needs. Most of RPU’s water <br />meters serve residential customers and are sized two-inches or smaller. However, RPU employs <br />roughly 480 large water meters that serve commercial and industrial customers and range in size from <br />three-inch to ten-inch. This group represents less than 1% of RPU’s water meterpopulationyet <br />generatesnearly 20% of total monthly water revenues. <br />The rate at which commercial and industrial customers consume water can vary significantly throughout <br />the day. For example, water consumption can be significant during periods when certain industrial <br />processes are in effect yet much lower at other times. Mechanicalmeters are limited to recording flow <br />rates within certain ranges based on their size. Therefore, in order to capture the entire range of flow <br />rates of these customers, the meters have two measuring elements: one tomeasurelow flows and a <br />second to measurehigh flows. This type of meter setup is known as a compound water meter. <br />Compound water meters are complicated and cumbersome and require extensive maintenance, and <br />many of the internal repair and replacement parts for these meters are nolongeravailable. <br />Page 18 <br />