To:
From:
Re:
D. Motion:
Attachments:
Discussion:
City of Nashua, Public Works Division
Board of Public Works Meeting Date: October 26, 2017
Noelle Osborne, Plant Operations Supervisor
Wastewater Department
SCADA Upgrades Project - Construction
To approve the SCADA Upgrades contract to Electrical Installations, Inc. of
Moultonborough, NH in the amount of $591,280. Funding will be through:
Department: 169 Wastewater; Fund: WERF; Activity: SCADA Upgrades.
EIl Bid
The SCADA Upgrades project is needed to upgrade the SCADA system,
including control panels, computers and PLC (programmable logic controllers)
throughout the wastewater facility. Much of the system is the original installations
15 — 20 years ago. Recent advances in technology have made the existing SCADA
system obsolete and difficult to use.
This project was sent out to bid on August 31, 2017 with bids due on October 10,
2017. The request for proposal was sent directly to five firms with SCADA
upgrades expertise all located in the New England area. Two bids were received
from Methuen Construction and Electrical Installations, Inc. (EID). The base bid
was for complete SCADA upgrades and an Alternate A was included to replace
obsolete ceiling tiles in one control room with acoustical ceiling tiles. Methuen’s
bid, including the Alternate, came in at $753,286. EIJI bid, including the
Alternate, came in at $591,280. Their bid was considered reasonable and came in
well below the engineer’s estimate of $642,000.
EII has satisfactorily performed numerous upgrades at the NWTF including the
dewatering upgrades, aeration upgrades and the ongoing headwork’s upgrades.
They have installed much of the original SCADA system including cables and
conduits going back to the anaerobic digester project completed in 2000. They
have the most institutional knowledge of the existing SCADA system and are well
qualified for this project.
