HomeMy WebLinkAboutItem 25 - Hilton Lift StationMEMOTO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL
FROM: BRUNO RUMBELOW, CITY MANAGER
MEETING DATE: MAY 21, 2019
SUBJECT: APPROVAL OF ENGINEERING SERVICES CONTRACT AMENDMENT
NO. 3 — HILTON LIFT STATION IMPROVEMENTS AND
APPROPRIATION ORDINANCE
RECOMMENDATION: City Council to consider Amendment No. 3 to the Engineering Services
Contract related to the installation of a liquid oxygen injection system at
the Hilton Lift Station with Garver LLC and consider an ordinance
appropriating funds for engineering services.
FUNDING SOURCE: Upon approval, funds in the amount of $66,904.00 will be available in the
Utility Enterprise Capital Fund 201.
BACKGROUND: On November 7, 2017 the City Council authorized an engineering services
agreement with Garver LLC, to design a new dewatering screw press and
retain the existing belt filter press as an emergency backup.
Amendment No. 1 for design of a second dewatering screw press was
approved July 3, 2018. Amendment No. 2 for additional plant modifications
was approved March 19, 2019.
Amendment No. 3 will provide for the engineering design services for the
installation of a liquid oxygen injection system within the existing footprint
of the Hilton Lift Station with the intent to use the system to increase
dissolved oxygen concentrations in the force main to reduce corrosion and
odor issues downstream as well as assist the WWTP process.
Amendment No. 3 is in the amount of $66,904.00.
Staff expects to bring a construction contract to the City Council in late
2019 for consideration, with the project to be operational in the summer of
2020.
Staff recommends approval.
ORDINANCE NO. 2019-024
AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF
GRAPEVINE, TEXAS, AUTHORIZING THE APPROPRIATION
OF $70,000 IN THE UTILITY ENTERPRISE CAPITAL FUND;
DECLARING AN EMERGENCY AND PROVIDING AN
EFFECTIVE DATE
WHEREAS, the City Council of the City of Grapevine desires to install a liquid
oxygen injection system at the Hilton Lift Station; and
WHEREAS, funding for the design phase services for the liquid oxygen injection
system at the Hilton Lift Station is available in the Utility Enterprise Capital 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
$70,000 be appropriated from the Utility Enterprise Capital Fund for the design services
associated with the installation of a liquid oxygen injection system at the Hilton Lift Station.
Section 3. 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 4. 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 21st day of May, 2019.
APPROVED:
William D. Tate
Mayor
ATTEST:
Tara Brooks
City Secretary
APPROVED AS TO FORM:
City Attorney
Ordinance No. 2019-024 2