SUBJECT
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Approve Amendment No.3 to Agreement 2022-077, with Wright-Pierce, Inc. to provide Part 4 construction administration services for the Northeast Regional Wastewater Treatment Facility Expansion from 6.0 MGD to 9.0 MGD. ($9,658,092.00 one-time expense)
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DESCRIPTION
The Polk County Utilities Division identified the expansion of the Northeast Regional Wastewater Treatment Facility (NERWWTF) as a priority project given the population and employment growth that has occurred in northeast Polk County. The 2015 Northeast Regional Utility Service Area (NERUSA) Master Plan Update estimated the NERWWTF would exceed the annual average daily flow of 6.0 Million Gallons Daily (MGD) by 2029, however, the latest ongoing updates to the Master Plan are expected to demonstrate that the facility will exceed the 6.0 MGD sooner than 2029.
In response to these updates, the County entered into Agreement 2022-077, with Wright-Pierce on October 4, 2022, in the amount of $581,465.40, to provide conceptual design services to expand the NERWWTF from 6.0 MGD to 9.0 MGD, which is anticipated to meet wastewater demands beyond the 2040 planning horizon based on the results of the 2015 NERUSA Master Plan Update. This agreement also provided for Wright Pierce to work with a Construction Manager at Risk (CMAR) contractor while designing the facility. Wharton Smith, Inc. was chosen as the CMAR to construct this project under Agreement No, 2023-074.
Amendment No 1. to the agreement was approved by the Board on October 3, 2023, for Part 2 services which included preliminary design and permitting services in the amount of $1,793,901.00.
Amendment No 2. to the agreement was approved by the Board on September 17, 2024, for Part 3 services which included final design, and bidding services in the amount of $6,798,421.00. Final design services were to be separated into phases resulting in five design packages. Each phase would result in a Guaranteed Maximum Price (GMP) Addendum to the ...
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