07-22-2019 BPU RPT 04 - Laserfiche WebLink

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W A T E R E N E R G Y T I F F RIVERSIDE PUBLIC UTILITIES id& Board Memorandum P U B L I C U T I L I T I E S BOARD OF PUBLIC UTILITIES DATE: JULY 22, 2019 ITEM NO: SUBJECT: BID NO. RPU -7662 FOR CABLE REJUVENATION IN CANYON CREST AREA WITH E.E. ELECTRIC, INC., IN THE AMOUNT OF $1,194,856.60; AND WORK ORDER NO. 1819765 FOR A TOTAL CAPITAL EXPENDITURE OF $1,479,000 ISSUES: Award Bid No. RPU -7662 for Cable Rejuvenation in Canyon Crest Areas 3 and 4 to E.E. Electric, Inc., of Mira Loma, California, in the amount of $1,194,856.60; and approve Work Order No. 1819765 for a total capital expenditure of $1,479,000. RECOMMENDATIONS: That the Board of Public Utilities: 1. Award Bid No. RPU -7662 for Cable Rejuvenation in Canyon Crest Areas 3 and 4 to E.E. Electric, Inc., of Mira Loma, California, in the amount of $1,194,856.60; and 2. Approve Work Order No. 1819765 for a total capital expenditure of $1,479,000 for the Canyon Crest Areas 3 and 4 Cable Rejuvenation Project. BACKGROUND: Riverside Public Utilities (RPU) has experienced reliability issues in the Canyon Crest area for the past 15 years, due to the high failure rate of aged cable. The area is served by HMPE insulated cable (high molecular weight polyethylene) and CIC type infrastructure (cable -in -conduit). HMPE cable is responsible for 70% of RPU's system failures. The Electric System Master Plan (ESMP) recommends the planned replacement of obsolete HMPE and CIC type infrastructure in the Canyon Crest residential service area to improve system capacity and reliability. Canyon Crest neighborhoods contain the greatest concentration of high failure rate HMPE/CIC underground cable within the RPU electric system and are designated high priority for infrastructure upgrades and replacement based upon recent comprehensive engineering analysis. In 2016, as part of the cable replacement program, RPU completed a cable rejuvenation pilot project that tested and treated underground electrical cable to extend its useful life. Cable rejuvenation technology has been successfully used by other utilities as a substitute of cable replacement, which is less intrusive and more cost efficient. The cable rejuvenation process injects a special fluid into the cable to strengthen weak points and achieve service life extension. The process rejuvenates underground distribution cable by filling voids in the cable's insulation layer and eliminating water contamination. This alternative method complements RPU's on- going cable replacement effort. When applied to suitable cable, this process improves reliability, and