SUBJECT
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Approve Amendment No.2 to Agreement 2022-077, with Wright-Pierce, Inc. to provide professional engineering services for the Northeast Regional Wastewater Treatment Facility Expansion from 6.0 MGD to 9.0 MGD. ($6,798,421.00 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) prior to 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, Inc. on October 4, 2022, in the amount of $581,465.40, to provide conceptual design engineering services to expand the NERWWTF from 6.0 MGD to 9.0 MGD, which is anticipated to meet current wastewater demands beyond the 2040 planning horizon based on the results of the 2015 NERUSA Master Plan Update.
Amendment No 1. to the agreement was approved by the Board October 3, 2023, for Part 2 services which included preliminary design and permitting services in the amount of $1,793,901.00.
The preliminary design has been completed and the Utilities Division is now requesting the Board approve Amendment No. 2 for Part 3 services which includes project management, support, final design, and bidding services in the amount of $6,798,421.00.
The final design services will be broken into four phases, for the design and upgrade of approximately 30 separate components at the NERWWTF. The phases will result in five Guaranteed Maximum Price (GMPs) addendums that will be brought back to the Board over the course of approximately three years by the Construction Manager at Risk (CMAR) for this project, Wharton-Smith, Inc. Bidding services under this Amendment No. 3 include preparing cost opinions for each of the GMPs for the County to evaluate the GMP and confirm the proposed prices are reasonable.
The total not-to-exceed amount for Part 1, Part 2, and Part 3 services is $9,173,787.40.
A future amendment will be brought back to the Board to provide construction administration services.
An amendment to the CMAR agreement with Wharton-Smith, Inc. is also on today’s agenda for Board approval to modify final pre-construction services related to this project.
RECOMMENDATION
Request Board approve Amendment No. 2 to Agreement 2022-077 with Wright-Pierce, Inc. to provide Part 3 professional engineering services for the NERWWTF Expansion from 6.0 MGD to 9.0 MGD in the amount of $6,798,421.00.
FISCAL IMPACT
Funds are available within the Utilities 5 Year CIP.
CONTACT INFORMATION
Ari Goldstein
Senior Procurement Analyst
Procurement
(863) 534-6415
arigoldstein@polk-county.net