Title
Contract No. 2201762
PS 1 Rack and Grit HVAC Upgrade
CIP #211011 / BCE 77.50
Body
Agenda of: January 25, 2023
Item No.: 2022-607
Amount: $5,294,101.00
TO: The Honorable
Board of Directors
Great Lakes Water Authority
FROM: Suzanne R. Coffey, P.E.
Chief Executive Officer
Great Lakes Water Authority
DATE: December 22, 2022
RE: Contract No. 2201762
PS 1 Rack and Grit HVAC Upgrade
Vendor: Clark Construction
MOTION
Upon recommendation of Navid Mehram, Chief Operating Officer - Wastewater Operating Services, the Board of Directors (Board) of the Great Lakes Water Authority (GLWA), authorizes the Chief Executive Officer (CEO) to enter into Contract No. 2201762, "PS 1 Rack and Grit HVAC Upgrade" with Clark Construction Company, at a cost not to exceed $5,294,101.00 for a duration of 920 Days; and authorizes the CEO to take such other action as may be necessary to accomplish the intent of this vote.
BACKGROUND
The Rack and Grit processing facility is immediately downstream of Pump Station 1 (PS 1). This process removes screenings and grit from the wastewater stream before heading to the primary clarifiers for further treatment. The rack and grit process is enclosed within the rack and grit building. This building was constructed in 1940. The HVAC system that serves this building was updated in the early 2000's. This existing heating system in rack and grit consists of a combination of natural gas making up air handling units and steam unit heaters. Air handling units 7 through 13 were placed on the roof of rack and grit to increase ventilation, air changes to meet code requirements for air changes, and steam unit heaters were added to provide additional heat to the building. The current heating system has operational issues, it is difficult to maintain and obtain parts for, and the units have exceeded their useful life and need replacement.
JUSTIFICATION
The current heating and ventilation system has passed its design and useful life and is n...
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