Title
Contract No. 2103350
Pump Station No. 1 Improvements
CIP #211006
Body
Agenda of: January 25, 2023
Item No.: 2022-600
Amount: $89,169,985.00
TO: The Honorable
Board of Directors
Great Lakes Water Authority
FROM: Suzanne R. Coffey, P.E.
Chief Executive Officer
Great Lakes Water Authority
DATE: January 11, 2023
RE: Contract No. 2103350
Pump Station No. 1 Improvements
Vendor: Weiss Construction Co., LLC
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. 2103350, "Pump Station No. 1 Improvements" with Weiss Construction Co., LLC, at the cost of not to exceed $89,169,985.00 for a duration of 1,735 days; and authorizes the CEO to take such other action as may be necessary to accomplish the intent of this vote.
BACKGROUND
GLWA operates and maintains sewage Influent Pumping Station No. 1 (PS-1) at the Water Resource Recovery Facility (WRRF). PS-1 was constructed in the late 1930s. Influent from the collection system flows to PS-1 through the Detroit River Interceptor (DRI) and Oakwood Interceptor. Flow from these two interceptors enters the wet well and is pumped to an elevation that allows the wastewater to flow for primary treatment by gravity.
PS-1 has eight (8) constant speed pumps of various capacities: Pump Nos. 1, 3, 4, 5, 7, and 8 were original to the station; and Pump Nos. 2 and 6 were added in 1956. The firm capacity of PS-1 is 1,129 Million Gallons per Day (MGD) which accounts for approximately 65% of the primary pumping capacity at the WRRF. The sewage pumps at PS-1 were last rehabilitated in 2004 and 2005. The supporting infrastructure for PS-1, including the electrical, HVAC, plumbing, and instrumentation have exceeded their useful life, and all require rehabilitation to ensure PS-1 can serve the WRR...
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