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ITEM: AUTHORIZATION TO 1) EXECUTE A GUARANTEED MAXIMUM PRICE (GMP) AMENDMENT FOR THE MEMBRANE PLANT 2 HIGH PRESSURE PUMP 9 (HPP9) EXPANSION PROJECT AND 2) EXECUTE A TASK ORDER FOR CONSTRUCTION PHASE SERVICES FOR THE MEMBRANE PLANT 2 HIGH PRESSURE PUMP 9 (HPP9) EXPANSION PROJECT
REQUEST: Authorization to 1) Execute a Guaranteed Maximum Price (GMP) Amendment with Wharton-Smith, Inc. for the Membrane Plant 2 High-Pressure Pump 9 (HPP9) Expansion Project in the amount of $2,100,971.00 and 2) Execute a task order for construction phase services for the project with Kimley-Horn and Associates, Inc. in the amount of $109,443.00.
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EXPLANATION: 1) Pursuant to RFQ# 202113, on May 11, 2021, the Village Council awarded a continuing Construction Manager at Risk (CMAR) contract to Wharton-Smith, Inc. Staff is seeking authorization to execute a GMP Amendment for the Membrane Plant 2 High-Pressure Pump 9 (HPP9) Expansion Project in the amount of $2,100,971.00, which includes $98,829.00 in owner-controlled contingencies.
The Utility operates three (3) separate water treatment plants on the water plant site that can provide up to 12.3 million gallons per day of potable water to customers both in and outside of the Village boundaries. Two types of water treatment technologies are utilized, nanofiltration membrane treatment and conventional lime softening. The Utility has developed a strategic plan which includes transitioning away from lime softening to 100 percent nanofiltration membrane treatment. Membrane treatment is a best available technology and will address contaminants of emerging concern and upcoming enhanced regulations. The Utility is using an incremental approach to expand membrane capacity in multiple phases. Phases completed previously include the installation of membrane Train 7 under the Water Plant Renewal and Replacement Project, construction of Train 8 in Membrane Plant 2, and projects to construct additional high pressure pumps and post-treatm...
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