To:
From:
Re:
H. Motion:
Attachments:
Biscussion:
City of Nashua, Public Works Division
Board of Public Works Meeting Date: May 18, 2017
Noelle Osborne, Plant Operations Supervisor
Wastewater Department
Waste Water Facility Water Valve and Yard Hydrant Installations
To award the Water Valve and Yard Hydrant Installations contract in the amount of
$179,925 to William P. Davis Excavation of Hampton, NH. Funding will be through:
Department: 169 - Wastewater; Fund: Wastewater; Account Classification: 81 Capital
Improvements.
Davis Excavation Bid
There are twenty-one yard hydrants at the Nashua Wastewater Treatment Facility
(NWFT) that were installed between 1972 and 2000, with the majority of the hydrants
being at least thirty years old. Due to the age, seventeen of the hydrants are inoperable.
Yard hydrants use chlorinated effluent, referred to as “plant water,” for cleaning
equipment and tanks. This results in considerable savings for the City by not having to
use potable water from Pennichuck.
In addition to the replacement of the yard hydrants, valves need to be installed on the
plant water system so sections can be shut off while the remainder of the plant water
system remains active. Over the years, while the plant water system was being installed,
no isolation valves were included.
Bids were received from TDD Earthworks, Crisp Contracting, RWC Enterprises and
William P. Davis Excavation. Upon review of the bids, the first three bidders were
disqualified by the Purchasing Manager due to not signing the addendum and/or failure to
provide a bid bond. Davis Excavation was the only complete bid. Their initial bid was
high at $218,975 and was not deemed acceptable. Negotiations with Davis brought the
bid down to $179,925, which was more in line with the other bids received and with the
cost estimate for the project of $175,000.
Davis Excavation has recently completed the siphon cover upgrades for the City. They
performed this work satisfactorily according the plans and specs, and were within the
budget and the work schedule. They recently completed a yard hydrant upgrades project
for the Dover Wastewater Treatment plant, and the Engineer for that project confirmed
they completed the work satisfactorily, on budget and within the time allotted.
