SUBJECT
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Approve the Construction Manager at Risk (CMAR), Guaranteed Maximum Price (GMP) Addendum No. 2 to Agreement 2023-074 with Wharton-Smith, Inc. for the Northeast Regional Wastewater Treatment Facility (NERWWTF). ($30,421,036.00 onetime expense)
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DESCRIPTION
On December 5, 2023, the Board entered into Agreement 2023-074, with Wharton-Smith, Inc., to provide pre-construction CMAR services for the NERWWTF expansion from 6 to 9 million gallons daily (MGD) project to be completed in 2 phases.
On September 17, 2024, the Board approved Amendment No. 1 to the agreement for additional pre-construction services in anticipation of the following 5 GMP's to be approved by the Board:
* GMP #1: Phase A-Deep Bed Filters, Chlorine Contact Chambers, Dewatering, Chemical Feed Building
* GMP #2: Phase A-Electrical and Communication Improvements, Phase E Other Plant-Wide Improvements (e.g. generator replacements, switching from medium voltage to now voltage)
* GMP #3: Phase B-Headworks, Return Pump Station, Electrical Building No. 3
* GMP #4: Phase C-Biological Nutrient Removal, Equalization Tank, Splitter Box Blower/MCC Building
* GMP #5: Phase D-Ground Storage Reservoir, High Service Pump Station, Augmentation Wells
On December 17, 2024, the Board approved GMP No. 1 in the amount of $41,644,133.00, to construct Phase A - Deep Bed Filters, Chlorine Contact Chambers, Dewatering, and Chemical Feed Building.
Pre-construction services for Phase A - Electrical and Communication Improvements, Phase E Other Plant-Wide Improvements, which includes design and bidding services, are now complete, and Wharton-Smith has provided the attached GMP No. 2 in the amount of $30,421,036.00 to construct these improvements. Also included in this GMP is the purchase of GMP No. 3 equipment that have long lead times to be manufactured/fabricated and delivered. The long lead time equipment to be purchased includes an odor control system, submersible pumps, grit removal system, and a package...
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