HomeMy WebLinkAboutItem 14 - Water Treatment PlantMEMOTO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL
FROM: BRUNO RUMBELOW, CITY MANAGER
MEETING DATE: FEBRUARY 18, 2020
SUBJECT: RATIFICATION OF CHANGE ORDERS NO. 1-3 AND APPROVAL OF
CHANGE ORDER NO. 4 FOR WATER TREATMENT CHEMICAL
IMPROVEMENT PROJECT
RECOMMENDATION: City Council consider ratification of Change Orders No. 1-3 and approval
of Change Order No. 4 for construction of chemical processing
improvements at the Water Treatment Plant with Red River Construction,
Inc.
FUNDING SOURCE: Funding is available in available in the Utility Enterprise Capital Fund
Account 201-48930-534-0-170002-2.
BACKGROUND: City Council approved a construction contract with Red River Construction
for chemical and process improvements at the Water Treatment Plant
including a chlorine dry scrubbing unit, a new ammonia tank system,
building enclosure and electrical control improvements.
The contract was awarded in the amount of $1,063,300. Additional funds
in the amount of $170,128 (16%) were appropriated for construction
related services.
Change Order No. 1 for rooftop duct work supports was approved by staff
August 19, 2019 in the amount of $3,194.03 .
Change Order No. 2 to supply and install a hot box for a backflow
preventer valve was approved by staff on September 4, 2019 in the
amount of $2,475.32.
Change Order No. 3to install a new ammonia tank readout was approved
by staff September 18, 2019 in the amount of $5,669.35.
Proposed Change Order No. 4 for a vacuum regulator for the chlorine
system and ammonia tank regulator is in the amount $9,449.47, which
raises the total change order amount to $20,778.17.
Staff is requesting ratification of Change Orders No. 1-3 and approval of
Change Order No. 4. Funding is available in the contingency approved
with the original contract.
Staff recommends approval