Title
Proposed Amendment No. 6
Contract No. 1802543/SCN-0000063
Rehabilitation of Ferric Chloride Feed System at PS-1 and Complex B Sludge Lines
CIP #211008/BCE Score: 78.30
Body
Agenda of: June 25, 2025
Item No.: 2025-179
Amount: Original Contract $2,322,045.00
Amendment No. 1 0.00
Amendment No. 2 0.00
Amendment No. 3 0.00
Amendment No. 4 0.00
Amendment No. 5 0.00
Proposed Amendment No. 6 0.00
Total Contract Amount $2,322,045.00
TO: The Honorable
Board of Directors
Great Lakes Water Authority
FROM: Suzanne R. Coffey, P.E.
Chief Executive Officer
Great Lakes Water Authority
DATE: May 30, 2025
RE: Contract No. 1803542/SCN-0000063
Rehabilitation of Ferric Chlorie Feed System at PS-1 and Complex B Sludge Lines
Vendor: Hazen & Sawyer
Status: Amendment/Change Order
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. 1803542/SCN-0000063, Proposed Amendment No. 6, "Rehabilitation of Ferric Chloride Feed System at PS-1 and Complex B Sludge Lines" with Hazen & Sawyer with no increase in cost for a total cost not to exceed $2,322,045.00 and an increased duration of 183 days, for a total duration of 2,415 days; and authorizes the CEO to take such other action as may be necessary to accomplish the intent of this vote.
BACKGROUND
The main objective of the Hazen & Sawyer contract was to design a new Ferric Chloride feed system that allows operations to effectively manage the phosphorus that enters the plant. The final design optimized the system by originating the Ferric Chloride feed system in Pump Station 2 (PS-2) while also feeding PS-1 via a new chemical feed line installed in the pipe gallery at the Water Resource Recovery Facility. Additionally, under this contrac...
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