HomeMy WebLinkAboutItem 15 - Train 1 FilterMEMO TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL
FROM: BRUNO RUMBELOW, CITY MANAGER
MEETING DATE: JANUARY 18, 2022
SUBJECT: ENGINEERING DESIGN CONTRACT FOR WASTEWATER
TREATMENT PLANT AND APPROPRIATION ORDINANCE
RECOMMENDATION: City Council to consider approving an engineering design contract with
Provenance Engineering, LLC for replacement of the train 1 filter complex
at the Wastewater Treatment Plant, and an ordinance to appropriate
funds.
FUNDING SOURCE: Funds are available in the Utility Enterprise Capital Fund in an estimated
amount of $230,000.
BACKGROUND: This process in the plant involves filtering solids from the large round
clarifiers in the plant. The treated water from this process is then sent to
our ultraviolet disinfection system and then released from the plant. This
train 1 filter equipment was installed in 1983 and must be replaced. The
two other filters (train 2 and 3) were replaced roughly eight years ago and
are functioning well.
Engineering services for the train 1 filter complex replacement will include
required design to replace the existing filters with cloth media filters,
matching that which was installed for trains 2 and 3. Included is a new
canopy, modifications to the existing concrete filter basin, electrical and
instrumental revisions, as well as site improvements to serve the new
filters.
Total engineering design services are $210,000 and include bidding and
construction phase services. A 10% contingency of $20,000 is also
requested bringing the total to $230,000.
The engineer's opinion of probable cost for the new filter complex is
$1,500,000.
Staff recommends approval.
ORDINANCE NO. 2021-002
AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF
GRAPEVINE, TEXAS, AUTHORIZING THE APPROPRIATION
OF $230,000 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 complete
improvements to Train 1 Filter Complex at the wastewater treatment plant, and
WHEREAS, funding 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 $230,000 be appropriated
from the Utility Enterprise Capital Fund for the Train 1 Filer Complex improvements at the
Wastewater Treatment Plant.
Section 3. That a copy of the revised FY 2021-2022 Capital Improvements Plan
budget document shall be kept on file in the office of the City Secretary and on the City of
Grapevine website.
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 18th of January, 2022
APPROVED:
William D. Tate
Mayor
ATTEST:
Tara Brooks
City Secretary
APPROVED AS TO FORM:
Matthew C.G. Boyle
City Attorney
Ordinance No. 2021-002 2