Title
GLWA-CON-208
Water Works Park Water Treatment Plant Chlorine Disinfection System Replacement and Improvements
Body
Agenda of: November 29, 2017
Item No.: 2017-436
Amount: $6,110,000.00
TO: The Honorable
Board of Directors
Great Lakes Water Authority
FROM: Sue F. McCormick
Chief Executive Officer
Great Lakes Water Authority
DATE: November 29, 2017
RE: Contract No.: GLWA-CON-208
Water Works Park Water Treatment Plant Chlorine Disinfection System Replacement and Improvements
Vendor: Detroit Contracting, Inc.
MOTION
Upon recommendation of Cheryl Porter, Chief Operating Officer - Water and Field Services, the Board of Directors (Board) of the Great Lakes Water Authority (GLWA), authorizes the Chief Executive Officer (CEO) to enter into Contract No. GLWA-CON-208, "Water Works Park Water Treatment Plant Chlorine Disinfection System Replacement and Improvements" with Detroit Contracting, Inc., at a cost not to exceed $6,110,000.00 for a duration of two (2) years and three (3) months; and authorizes the CEO to take such other action as may be necessary to accomplish the intent of this vote.
BACKGROUND
Chlorine is used to disinfect raw water, finished water and backwash water at the Water Works Park (WWP) Water Treatment Plant (WTP). In addition, chlorine is fed to the raw water tunnel that serves Springwells and Northeast WTPs. When the WWP ozone system is non-operational, the raw water chlorine feed must be substantially increased to meet Michigan Department of Environmental Quality (MDEQ) Safe Drinking Water Act regulatory requirements for sufficient contact time for disinfection. The existing chlorine system was designed for maximum flows and lacks sufficient turn down capacities to meet average flow requirements. In addition, the existing system has experienced numerous leaks that pose safety issues to staff and potentially the public. The new system will replace the existing equipment and provide the enhanced flexibility to meet seasonal fl...
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