HomeMy WebLinkAboutItem 18 - Wastewater Treatment Plant Headworks ProjectMEMO TO: HONORABLE COUNCIL
FROM: B MANAGER
MEETING DATE: APRIL 5, 2016
SUBJECT: ENGINEERING SERVICES CONTRACT AMENDMENT —
WASTEWATER TREATMENT PLANT HEADWORKS PROJECT
City Council consider
approving a final amendment to the Engineering Services Contract with Freese and
Nichols, Inc. (F&N) in the amount of $ 49,500.00 for the Wastewater Treatment
Plant Headworks Project,
adopt an ordinance amending the 2016 Capital Improvement Plan,
authorize staff to execute said contract amendment and take any necessary action.
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Funds are available in the Project Funding Allocation account 201-43370-534-9-0027SW.
BACKGROUND:
The Wastewater Treatment Plant Headworks project was a challenging project to design
and construct due to the age of the existing facilities, the complexity of the project and the
physical constraints of the project.
F&N has the in-house capability to provide an enhanced level of Construction Phase
Services when the complexity of the design and construction of a project is abnormally
high. F&N staff and City Staff identified the need for the enhanced level of Construction
Phase Services at the outset of the project due to its complexity.
The cost of support provided by F&N to reach completion of the project has exceeded the
approved contract figure. The contract currently is authorized at $319,136.00 for both
design and construction phase services. The amendment will increase the total authorized
contract amount to $368,636.00.
The Wastewater Treatment Plant is comprised of three separate plants (Trains) that
operate independently with the exception that all three are fed from the single entry point
into the Wastewater Treatment Plant at the Headworks. The construction of the new
Headworks faced significant anticipated and unanticipated difficulty from the outset due
to:
the limited space for the new construction,
the requirement that the existing Headworks remain in service during the
construction,
the sequential connection of the individual plants,
limited scope of record drawings of the original plant, and
the requirement that we continue to meet our effluent discharge limits.
The existing Headworks, constructed in the 1950s, was unable to comply with TCEQ
requirements imposed in the early 2010s. To resolve this violation, staff is working to bring
our technology up to current standards and insure compliance with our current Wastewater
Treatment Plant Discharge Permit and future permits.
Staff recommends approval.
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WHEREAS, the City Council of the City of Grapevine acknowledges the completion
of the Wastewater Treatment Plant Headworks Project; and
WHEREAS, the Engineering Construction Phase Services funding is insufficient to
fund the final cost of the services in the amount of $49,500.00; and
WEREREAS, funding for the increase in Engineering Construction Phase Services
is not currently appropriated; 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
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 amount of $49,500.00 be
appropriated from the undesignated fund balance in the Capital Utility Fund and amending
the 2016 Capital Improvement Plan for the Construction of the Wastewater Treatment
Plant Headworks Construction Project.
Section 3. That a copy of the revised Fiscal Year 2015-2016 Capital
Improvements Plan Budget shall be kept on file in the City Secretary's Office 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 which requires that this ordinance shall take effect immediately from
and after its passage and it is accordingly so ordained.
PASSED AND APPROVED BY THE CITY COUNCIL OF THE CITY
GRAPEVINE, TEXAS on this the 5th day of April, 2016.
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William D. Tate
Mayor
ATTEST:
Tara Brooks
City Secretary
John F. Boyle, Jr.
City Attorney
ORD. NO. 2