11-07-2014 BPU RPT 05 - Laserfiche WebLink

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W A T E R i ENERGY L I F E RIVERSIDE PUBLIC UTILITIES Board Memorandum PUBLIC UTILITIES BOARD OF PUBLIC UTILITIES DATE: NOVEMBER 7, 2014 ITEM NO: 5 SUBJECT: REHABILITATION PROJECTS FOR THREE WELLS FOR 2014 -2015; WORK ORDER NO.1508448, FLUME 4 WELL; WORK ORDER NO.1508449, PALMYRITA WELL; WORK ORDER NO.1508450, GARNER 6 WELL ISSUE: The item for Board of Public Utilities consideration is approval of the capital expenditure in an estimated amount $645,000 for a total of three domestic well rehabilitation projects. RECOMMENDATIONS: That the Board of Public Utilities approve the capital expenditure in an estimated amount of $645,000 for the following domestic well rehabilitation projects: 1. $215,000 for Work Order No. 1508448, Flume 4 Well; 2. $215,000 for Work Order No. 1508449, Palmyrita Well; and 3. $215,000 for Work Order No. 1508450, Garner 6 Well. BACKGROUND: The Riverside Public Utilities Department (RPU) produces drinking water from about 50 wells throughout Riverside and San Bernardino. Over time, the wells and pumping plant lose efficiency and require maintenance. Staff has identified six wells that require rehabilitation work during the 2014 -15 winter season: Flume 4, Palmyrita, Garner 6, Van Buren 1, Van Buren 2 and Flume 2. In order to minimize disruptions, staff first seeks Board Authorization and then uses the Water Division's Contractor's Panel to perform the work in coordination with the Water Operations group. Staff has developed the scope of work for the Flume 4, Palmyrita and Garner 6 wells that are included in this authorization request. Staff is currently working with a hydrogeologist to develop the scope of work for the remaining three wells, and will seek approval from the Board of Public Utilities for expenditures for them in the near future. The scope of work for the first three wells includes removal and inspection of the pumping equipment, video surveys, mechanical and chemical cleaning, as needed, and well development work. The initial rehabilitation work will take approximately between six to eight weeks. However, if a new pump or motor are deemed necessary, the duration for each well project would be extended to 12 weeks for completion. FISCAL IMPACT: Costs for well rehabilitation projects in recent years have ranged from approximately $150,000 to $250,000. Although the individual costs for each well rehabilitation project may fall below or exceed this range, the approximate project cost for each well project is estimated at approximately $215,000 as shown on the table below: