Title
Contract No. 1900134
Springwells Water Treatment Plant Low Lift Suction Gate Replacement
CIP# 114002/ BCE 69.2
Body
Agenda of: December 11, 2019
Item No.: 2019-399
Amount: $13,733,521.00
TO: The Honorable
Board of Directors
Great Lakes Water Authority
FROM: Sue F. McCormick
Chief Executive Officer
Great Lakes Water Authority
DATE: November 6, 2019
RE: Contract No. 1900134
Springwells Water Treatment Plant Low Lift Suction Gate
Vendor: Barton Malow Company
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. 1900134 "Springwells Water Treatment Plant Low Lift Suction Gate" with Barton Malow Company, at a cost not to exceed $13,733,521.00 for a duration of 730 days; and authorizes the CEO to take such other action as may be necessary to accomplish the intent of this vote.
BACKGROUND
Currently there exists only one suction flume isolation broome gate that can be inserted in one of eight possible locations at any given time. All eight pumps discharge into a common discharge collection channel which provides raw water to both the 1930 and 1958 raw water conduits. The only means of isolating these conduits from the discharge collection channel is via the use of two bulkhead-style gates which can be placed in any of the five (5) guide systems located in the discharge collection channel.
Under a separate future contract, GLWA intends to replace the low lift pumping units, inclusive of suction piping and associated isolation valves, pumping units, and discharge piping and associated discharge control valves located in the dry interior of the Low Lift Station. In order to complete this replacement, each pumping unit needs to be isolated from the raw water supply system. Currently, the only means of isolating each low lift pumping unit from the suction ...
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