HomeMy WebLinkAboutItem 06 - UV Disinfection SystemMEMO TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL
FROM: BRUNO RUMBELOW, CITY MANAGER
MEETING DATE: JANUARY 6, 2026
SUBJECT: RATIFY THE EMERGENCY PURCHASE OF ULTRAVIOLET
DISINFECTION SYSTEM, REPAIRS, INSTALLATION AND
APPROPRIATION ORDINANCE
RECOMMENDATION: City Council to consider ratification of the emergency purchase order for
the purchase of an Ultraviolet (UV) Disinfection System at the Wastewater
Treatment Plant from Vision Equipment; approval of the installation
services with Alltech Engineering Corporation and Humphrey Associates;
and approval of an ordinance appropriating funds.
FUNDING SOURCE: Upon approval of the attached ordinance, funds will be available in the
Utility Enterprise Fund in the estimated amount of $500,000.
BACKGROUND: The UV Disinfection process is the last treatment before effluent leaves
the plant. The disinfection process is critical to maintain our operating
permit. Our plant flows can be treated with either of our two treatment
channels allowing for a backup, if needed.
On November 18, 2025, there was an electrical fire at the UV Disinfection
System at the Wastewater Treatment Plant. The UV control panel, wiring
and modules in Channel 1 were damaged beyond repair. Staff has worked
with Vision Equipment to obtain a quote for a new control panel and
modules to match the existing equipment.
This request also includes funds for installation of the replacement
equipment including a new electrical service to the control cabinet from
the transformer.
The purchase of the UV Disinfection system with Vision Equipment is
$325,000, the estimated costs for installation of the equipment with Alltech
Engineering Corporation is $40,000 and the electrical installation with
Humphrey Associates is estimated at $100,000. Staff is also
recommending $35,000 contingency.
An insurance investigation claim is in progress and it is anticipated a
portion of these costs will be reimbursed.
Staff recommends approval.
ORDINANCE NO. 2026-000
AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF
GRAPEVINE, TEXAS, AUTHORIZING THE APPROPRIATION
OF $500,000 IN THE UTILITY ENTERPRISE FUND;
DECLARING AN EMERGENCY AND PROVIDING AN
EFFECTIVE DATE
WHEREAS, a fire at the Wastewater Treatment Plant on November 18, 2025 caused
damage to the Ultraviolet Disinfection System at the Wastewater Treatment Plant; and
WHEREAS, the City Council of the City of Grapevine desires to complete the
emergency repair of the Ultraviolet Disinfection System at the Wastewater Treatment Plant;
and
WHEREAS, funding is available in the Utility Enterprise Fund; and
WHEREAS, all constitutional and statutory prerequisites for the approval of this
ordinance have been met, including but not limited to the Open Meetings Act and Chapter
211 of the Local Government Code; and
WHEREAS, the City Council deems the adoption of this ordinance to be in the best
interests of the health, safety, and welfare of the public.
NOW THEREFORE, BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF
GRAPEVINE, TEXAS:
Section 1. That all matters stated hereinabove are found to be true and correct
and are incorporated herein by reference as if copied in their entirety.
Section 2. That the City Council hereby authorizes an estimated amount of
$500,000 be appropriated from the Utility Enterprise Fund for the emergency repair of the
Ultra Violet Disinfection System at the Wastewater Treatment Plant.
Section 3. That a copy of the revised FY 2026-2027 annual budget document
shall be kept on file in the office of the City Secretary.
Section 4. That the terms and provisions of this ordinance shall be deemed to be
severable, and that if the validity of any section, subsection, word, sentence or phrase shall
be held to be invalid, it shall not affect the remaining part of this ordinance.
Section 5. That the fact that the present ordinances and regulations of the City of
Grapevine, Texas, are inadequate to properly safeguard the health, safety, morals, peace
and general welfare of the inhabitants of the City of Grapevine, Texas, creates an
emergency for the immediate preservation of the public business, property, health, safety
and general welfare of the public which requires that this ordinance shall become effective
from and after the date of its final passage, and it is accordingly so ordained.
PASSED AND APPROVED BY THE CITY COUNCIL OF THE CITY OF
GRAPEVINE, TEXAS on this the 6th day of January, 2026.
APPROVED:
William D. Tate
Mayor
ATTEST:
Tara Brooks
City Secretary
APPROVED AS TO FORM:
Matthew C.G. Boyle
City Attorney
Ordinance No. 2026-002 2