HomeMy WebLinkAboutItem 16 - Wastewater Treatment PlantMEMOTO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL
FROM: BRUNO RUMBELOW, CITY MANAGER
MEETING DATE: FEBRUARY 4, 2020
SUBJECT: APPROVAL OF CHANGE ORDER NO. 1 FOR THE INSTALLATION OF
THE ULTRAVIOLET LIGHT DISINFECTION SYSTEM AT THE
WASTEWATER TREATMENT PLANT
RECOMMENDATION: City Council to consider Change Order No. 1for installing the ultraviolet
light disinfection system improvement at the Wastewater Treatment Plant
with Alltech Engineering Corporation.
FUNDING SOURCE: Funds are available in the estimated amount of $133,586.10 in the Utility
Enterprise Capital Fund 201.
BACKGROUND: On May 21, 2019, the City Council authorized a contract with Alltech
Engineering Corporation in the amount of $799,747 for the installation of
an ultraviolet light disinfection system at the Wastewater Treatment Plant.
The UV disinfection system is the last treatment process in the
Wastewater Treatment Plant and critical to meet our permitting
requirements through the TCEQ.
On October 15, 2019, Change Order No. 1 in the amount of $20,500 was
approved for the design engineer, Parkhill, Smith and Cooper Inc., to
design a new automatic transfer switch and an emergency generator for
the UV system.
This design has been completed and will add $133,586.10 to the
construction contract with approval of Change Order #1 to Alltech
Engineering Corporation. This change order includes:
- $71,076.50 for the Cummins generator, automated transfer switch and
other ancillary equipment;
- $40,350.00 for installation of the generator equipment as well as
modifications to the existing canopy to shelter the equipment;
- $13,159.60 to remove and replace handrail on the aeration basin of
Train 1 for worker safety;
- $7,000 to install new concrete curbing and 2" conduit for fiber line;
- $2,000 for drainage improvements and an additional 3' additional width
to new canopy for equipment protection.
Staff recommends approval