Improvements to Pasadena Pump Station and Reservoir
Project Number 01-606-005
The City of Mesa has awarded this project to
The contractor chlorinated the reservoir, filled and was leak
tested. Bac-T test were done and passed. Crews will begin
disinfection of both the suction and discharge headers in the
pump house this week. The new Solar Bee was installed in the
reservoir and is operational This allows the water in the
reservoir to be mixed and remain fresh to be able to discharge
into the system. The replacement piece on the suction header in
the basement of the pump house was removed and replaced.
Construction on this project is scheduled to begin in August 2012 and is
estimated to be complete by May 2013.
The Pasadena Pump Station is one of three major pump
stations that receive water from the Val Vista Water Treatment
Plant and distribute it within the City Water Service Zone (City
Zone), with the Pasadena site providing approximately 60% of the
flow to the City Zone.
The Pasadena Pump Station and 10
million gallon reservoir were originally constructed in 1952.
The original pump station was replaced in 1982, but the original
reservoir remains in service today. The pump station
includes ten (10) existing pumps. Several of the pumps and
motors are past their useful life and need to be replaced. The
reservoir floor has a history of cracking in numerous locations.
Installation of a reservoir liner will provide a factor of
safety against future crack development and water loss from the
reservoir. In addition, major electrical equipment
components are at the end of their service life, and must be
replaced due to obsolete components or limited availability of
This project will increase station
pumping capacity the reliability and level of service of the
pump station to meet existing and projected water demands in the
City Water Zone. Proposed improvements include a new electrical
room, electrical and controls systems, pumps, motors and a new
chlorination system. In addition, this project will
install a solar-powered reservoir mixing system to improve water
quality, upgrade the existing electrical systems, and site
security will be improved with the installation of a card access
system, gates and masonry walls. This project will also install
a reservoir liner over the existing concrete floor and walls.
The recommended total award amount
for this project is $6,342,875.00, based on the lowest bid of
$5,766,250.00 plus an additional $576,625.00 (10% allowance for
change orders). This project is funded from the
preliminary FY 12/13 Water Bond Capital Program.