Toa:
From:
Re:
A. Motion:
Attachment:
Discussion:
City of Nashua, Public Works Division
Board of Public Works Meeting Date: July 23, 2020
David L. Boucher, Superintendent
Wastewater Department
Energy Recovery Upgrades ~ Construction Phase Services
To approve Amendment #2 to the contract with Waldron Engineering of Exeter,
NH in an amount not to exceed $19,568.90 for construction administration
services for the Energy Recovery Upgrade Project. Funding will be through:
Department: 169- Wastewater; Fund: Wastewater; Activity: Energy Recovery
Upgrades.
Waldron Engineering Contract
The Nashua Wastewater Treatment Facility is undergoing an upgrade of its
energy recovery system. Work began in the summer of 2019 and Waldron
Engineer was awarded the construction phase services contract in the amount of
$76,762. As work progressed on the project, it was realized the construction work
was more complicated and took longer to install than realized. Waldron requested
Amendment #1 to the contract in the amount of $24,933.74 for additional work
related to unknown utilities, associated RFI and change order reviews, and related
activities. The new contract value following CO1 came to $101,695.74.
Amendment #2 is for additional time need for the consultant services as a result of
the construction taking approximately 7 months longer than anticipated. Part of
the delay can be attributed to the complexity of the project but also due to Covid-
19 that resulted in the delays to the contractor’s ability to get work done.
Amendment #2 is for $19,568.90 bring the total contact amount to $121,264.64.
The total contract amount is still very reasonable equating to only 6% of the
contract value whereas most other project have construction services costs of 8 —
10% of the construction contract value.
