Title
Proposed Amendment No. 1
Contract No. 1904337
PS-2 Bar Racks Replacements and Grit Collection System Improvements
CIP #211007 / BCE Score: 75.70
Body
Agenda of: April 26, 2023
Item No.: 2023-134
Amount: Original Contract $11,307,128.58
Proposed Amendment No.1 496,159.80
Total Revised Contract $11,803,288.38
TO: The Honorable
Board of Directors
Great Lakes Water Authority
FROM: Suzanne R. Coffey, P.E.
Chief Executive Officer
Great Lakes Water Authority
DATE: March 30, 2023
RE: Proposed Amendment No. 1
Contract No. 1904337
PS-2 Bar Racks Replacements and Grit Collection System Improvements
Vendor: Hazen and Sawyer
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. 1904337, Proposed Amendment No. 1, "PS-2 Bar Racks Replacements and Grit Collection System Improvements" with Hazen and Sawyer, at an increased cost of $496,159.80 for a total cost not to exceed $11,803,288.38 with no increase in duration for a total duration of 2,403 days; and authorizes the CEO to take such other action as may be necessary to accomplish the intent of this vote.
BACKGROUND
On September 23, 2020, the GLWA Board of Directors authorized the award of the above referenced project to Hazen and Sawyer to perform planning, preliminary design, detailed design, and construction services for the Pump Station-2 Bar Racks Replacements and Grit Collection System Improvements (PS2RG) project. The improvements include the following key elements: replacement of the existing bar screens; improvements to the grit removal system; sluicing trough for screening collection to screenings compaction prior to disposal; and addition of grit classifiers for grit washing/dewatering for optimal disposal. The project is currently in detailed design, at the 90% design submit...
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