Title
Contract No. 1803823
Lake Huron Water Treatment Plant Raw Sludge Clarifier and Raw Sludge Pumping Improvements
CIP#/BCE Score: 111007 / 53.2
Body
Agenda of: April 24, 2019
Item No.: 2019-150
Amount: $7,056,735.00
TO: The Honorable
Board of Directors
Great Lakes Water Authority
FROM: Sue F. McCormick
Chief Executive Officer
Great Lakes Water Authority
DATE: April 3, 2019
RE: Contract No. 1803823
Lake Huron Water Treatment Plant Raw Sludge Clarifier and Raw Sludge Pumping Improvements
Vendor: Weiss Construction Co., LLC
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. 1803823 "Lake Huron Water Treatment Plant Raw Sludge Clarifier and Raw Sludge Pumping Improvements" with Weiss Construction Co., LLC, at a cost not to exceed $7,056,735.00 for a duration of 780 days; and authorizes the CEO to take such other action as may be necessary to accomplish the intent of this vote.
BACKGROUND
Spent filter backwash is conveyed to the Waste Wash Water Retention Basin (WWRB) that was constructed in the early 1970s. Twice yearly, as part of the settling basin cleaning, the flush water and alum sludge from the Lake Huron Water Treatment Plant settling basins are drained to the clarifiers that are adjacent to the WWRB. Clarifiers Nos. 1 and 2 were constructed at the same time as the WWRB. Sludge is discharged from these clarifiers to drying lagoons using a sludge pumping station. The clarifiers also serve as redundant waste wash water retention volume during normal plant operations. The WWRB, Clarifier Nos. 1 and 2, and the sludge pumping station all require improvement. The scope of this construction Contract No. 1803823 involves:
1. Demolish existing clarifiers and sludge pumping station
2. Construct new cast-in-place reinforced concrete waste wash water reten...
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