10-03-2014 BPU RPT 06 - Laserfiche WebLink

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W A T E R E N E R G Y L I F E law PUBLIC UTILITIES RIVERSIDE PUBLIC UTILITIES Board Memorandum BOARD OF PUBLIC UTILITIES DATE: OCTOBER 3, 2014 ITEM NO: 6 SUBJECT: CONSTRUCTION OF THE WARREN WELLS BLOW -OFF MODIFICATION PROJECT — WORK ORDER NO. 1305507 ISSUE: The item for Board of Public Utilities consideration is approval of the capital expenditure in the amount of $62,000 to construct the Warren Wells Blow -Off Modification Project. RECOMMENDATION: That the Board of Public Utilities approve the capital expenditure of $62,000 for Work Order No. 1305507, which includes all design, construction and construction contingency costs for the Warren Wells Blow -Off Modification Project. BACKGROUND: The Riverside Public Utilities Department (RPU) operates two groundwater wells known as Warren Well Nos. 1 and 4. These wells are located in the City of San Bernardino on property owned by RPU and leased to the San Bernardino Golf Club. As part of normal operating protocol, when a groundwater well is returned to service after sitting idle for a period of time, the stale water needs to be flushed out before fresh water can be discharged into the water system. As presently configured, the blow -offs for these wells waste water and present a potential safety hazard. which necessitates the presence of a water operator when the well is either started or shut down. As part of this project, Warren Well No. 1 will be reconfigured to flush into the Riverside Canal where it can be used in the Gage Exchange. The blow -off for Warren Well No. 4 will be modified to discharge to a new energy dissipater and sump, which will reduce the hazard associated with starting and stopping the well. These modifications will also permit the well to be operated remotely, which should save time and decrease operating costs. The work will generally entail the construction of approximately 60 linear feet of 8 -inch piping, 20 linear feet of 12 -inch piping, one 36 -inch diameter standpipe, one concrete sump and energy dissipater and removal of an existing concrete vault and interfering piping, along with all other related appurtenances and associated incidental work. The work identified will be constructed by the Water Division's field forces. No service disruptions are anticipated to complete the work of this project.