07-10-2017 BPU RPT 06 - Laserfiche WebLink

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J � P U B L I C U T I L I T I E S BOARD OF PUBLIC UTILITIES RIVERSIDE PUBLIC UTILITIES Board Memorandum DATE: JULY 10, 2017 ITEM NO: 6 SUBJECT: REPLACEMENT OF TWO JOHN W. NORTH TREATMENT PLANT TRAINS — APPROVE MEMBRANE REPLACEMENT PROPOSAL AGREEMENT AND THE AWARD OF A PURCHASE ORDER IN THE AMOUNT OF $325,439 TO ZENON ENVIRONMENTAL CORP. OF ONTARIO CANADA FOR REPLACING TWO JOHN W. NORTH TREATMENT PLANT MEMBRANES — APPROVE WORK ORDER NO. 1727627 FOR $368,000 ISSUES: Approve Membrane Replacement Proposal Agreement and award a purchase order in the amount of $325,439 to Zenon Environmental Corp. of Ontario, Canada for replacing two John W. North treatment plant trains; and approve the expenditure in the amount of $368,000 for Work Order No. 1727627. RECOMMENDATIONS: That the Board of Public Utilities: 1. Approve Membrane Replacement Proposal Agreement and the award of a purchase order in the amount of $325,439 to Zenon Environmental Corp. of Ontario, Canada for replacing two John W. North treatment plant membranes; 2. Authorize the City Manager, or his designee, to execute the agreement and all related documents; and 3. Approve the expenditure in the amount of $368,000 for Work Order No. 1727627, which includes the membrane replacement, onsite technical assistance, RPU staff support and contingency costs for the John W. North treatment plant membrane replacement. BACKGROUND: The John W. North Water Treatment Plant (JW North) began operating in September 2008. With a rated capacity of 10 Million gallons per day (MGD), JW North treats water from irrigation wells to drinking water standards. This project was key to the City of Riverside becoming wholly independent with the ability to serve our customers with local groundwater supplies. Furthermore, the high quality treated water coming from JW North helps improve the overall water quality that Riverside provides its customers, which meets and exceeds all State and Federal Standards. Central to the JW North treatment process is the ZeeWeed 1000 treatment system manufactured by General Electric (GE), which uses an "ultrafiltration" treatment process. Ultrafiltration involves 0.02 -micron wide pore openings that pass through water, but block viruses and most bacteria. Visually, the individual membranes look like thin hollow straws that are 0.8 mm in diameter. A vacuum is applied to the inside of the straws, drawing water through the pores while micro -contaminants are kept outside. Periodically, the straws are rinsed with clean water to remove any external build-up.