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W A T E R E N E R[ <br />RIVERSIDE PUBLIC UTILITIES <br />WI& Board Memorandum <br />P U B L I C U T I L I T I F S <br />BOARD OF PUBLIC UTILITIES DATE: APRIL 10, 2017 <br />ITEM NO: 6 <br />SUBJECT: CHANGE ORDER TO PURCHASE ORDER NO. 171202 WITH CG POWER SYSTEMS <br />OF WASHINGTON, MISSOURI FOR ADDITIONAL STOCK OF DISTRIBUTION <br />TRANSFORMERS FOR $347,535 <br />ISSUE: <br />Approve change order to Purchase Order 171202. <br />RECOMMENDATION: <br />That the Board of Public Utilities approve the change order and capital expenditure of $347,535 for <br />Purchase Order No. 171202, to purchase 24 pad -mounted, distribution transformers of various sizes to <br />replenish stocking levels for summer 2017. <br />BACKGROUND: <br />An increased pace of development, customer load additions, and construction projects within our service <br />area has reduced the number of pad -mounted distribution transformers below the optimal stocking levels. <br />Stocking levels will be increased for certain sizes of transformers in preparation for high system loading <br />resulting from higher temperatures during upcoming summer season. These summer loading conditions <br />historically increase the potential for transformer overloading and/or failure. Transformers are used in the <br />distribution system to transform primary voltage to a useful secondary voltage to serve customers. The <br />picture below shows a typical, pad -mounted distribution transformer. <br />Typical 150 kVA Padmounted Transformer <br />