HomeMy WebLinkAboutItem 12 - AM WWTP Dewater Funding MEMO TO: HONORABLE MAYOR AND MEMBERS OF THE CITY
COUNCIL
FROM: BRUNO RUMBELOW, CITY MANAGER -
MEETING DATE: NOVEMBER 7, 2017
SUBJECT: APPROVAL OF ENGINEERING SERVICES CONTRACT —
WASTEWATER TREATMENT PLANT DEWATERI NG
IMPROVEMENTS AND APPROPRIATION ORDINANCE
RECOMMENDATION
City Council to consider:
• Awarding an Engineering Services Contract with Garver LLC in the amount of
$327,457 for the design of a dewatering screw press at the WWTP; and
adopting an appropriation ordinance amending the FY 18 Capital Budget in an
amount of $327,457 for Engineering Services.
• Authorizing staff to execute said contract and take any necessary action.
FUNDING:
Upon approval, funds will be available in the Utility Enterprise Capital Fund Account
201-48940-534-000-170001-2.
BACKGROUND:
One of the final steps of treatment at the Wastewater Treatment Plant (WWTP) is
sludge dewatering. All solids removed from the waste stream are collected, processed,
and excess water is removed from the sludge. This water removal is necessary to allow
landfilling the sludge at reduced weight and cost. The existing belt filter press at the
WWTP is over 30 years old and is at the end of its useful life for full time operation. The
plant has only one dewatering press.
Garver LLC will help select the best manufacturer, size, and model for our needs,
develop installation plans so that the new screw press will fit within the existing building
while allowing the existing belt press to remain as an emergency backup. Modification
will be made to the conveyor system, piping, chemical additives and other
appurtenances required for the installation. The project schedule includes 10 months
for design and 12 months for construction. Estimated construction cost is $3,000,000
which will be allocated from Utility Funds on hand at the time the bid is brought back to
Council in 2018.
Staff recommends approval.
ORDINANCE NO. 2017-077
AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF
GRAPEVINE, TEXAS, REVISING THE ADOPTED CAPITAL
IMPROVEMENTS BUDGET FOR THE FISCAL YEAR
ENDING IN 2018, APPROPRIATING FUNDS FROM UTILITY
FUND BALANCE; AND PROVIDING AN EFFECTIVE DATE
WHEREAS, the City Council of the City of Grapevine desires to install a dewatering
screw press at the Waste Water Treatment Plant; and
WHEREAS, funding for the design phase services forthe dewatering improvements
is not currently included in the FY 2017 -2018 Capital Improvements Plan Budget; 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 estimated amount of
$327,457.00 to be appropriated in the Utility Enterprise Capital Fund for dewatering
improvements and design services associated with installation of a screw press at the
wastewater treatment plant.
Section 3. That a copy of the revised FY 2017-2018 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 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 OF
GRAPEVINE, TEXAS on this the 7th day of November, 2017.
APPROVED:
William D. Tate
Mayor
ATTEST:
Tara Brooks
City Secretary
APPROVED AS TO FORM:
John F. Boyle, Jr.
City Attorney
Ordinance 2017-077 2