SUBJECT
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Approve the Construction Manager at Risk (CMAR), Guaranteed Maximum Price (GMP) Addendum No. 1 with Wharton-Smith, Inc. for the Northeast Regional Wastewater Treatment Facility (NERWWTF), Phase A dewatering and construction expansion. ($44,644,133.00 one-time 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 to break down the entire expansion project from 2 phases to 4 phases for cost efficiency. The 4 phases will result in 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 and 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
Pre-construction services for Phase A Deep Bed Filters, Chlorine Contact Chambers, Dewatering, Chemical Feed Building, which includes design and bidding services, are now complete, and Wharton-Smith, Inc. has provided the attached GMP Addendum No. 1 in the amount of $44,644,133.00.
The total contract time for construction is 603 calendar days. In accordance with Resolution 13-066, Allowance time for this project is 60 calendar days.
Due to the rapid growth in the service area, the construction of this Phase A will increase capacity incrementally while the designs and GMPs are being completed for the additional phases.
RECOMMENDATION
Request Board approve GMP Addendum No.1 to Agreement 2023-074 with Wharton-Smith, Inc. for the Northeast Regional Wastewater Treatment Facility (NERWWTF), Phase A dewatering and construction expansion in the amount of $44,644,133.00.
FISCAL IMPACT
Funding is available in the Utilities Five-Year Community Investment Program Budget.
CONTACT INFORMATION
Ari Goldstein
Senior Procurement Analyst
863.534.6415
arigoldstein@polk-county.net