HomeMy WebLinkAboutItem 19 - Engineering Design Services for Wastewater Treatment Plant Electrical Improvements ProjectMEMO TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL
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FROM: BRUNO RUMBELOW, CITY MANAGER
MEETING DATE: DECEMBER 15, 2015
SUBJECT: ENGINEERING DESIGN SERVICES CONTRACT -
WASTEWATER TREATMENT PLANT ELECTRICAL
IMPROVEMENTS PROJECT
RECOMMENDATION:
City Council consider:
• awarding an Engineering Design Services Contract to Gupta & Associates, Inc. in
the amount of $80,710.00 for the design of electrical improvements and repairs of
the Wastewater Treatment Plant,
• adopting an ordinance appropriating $88,781.00 for the contract award that
includes 10% contingency to the FY 2015 — 2016 Utility Enterprise Capital
Projects Fund Budget,
• authorizing staff to execute said contract, and take any necessary action.
FUNDING:
Upon approval of the attached ordinance, funds will be available and programmed in the
Utility Enterprise Capital Projects fund.
BACKGROUND:
The wastewater treatment plant has three "Trains"; each of the three Trains treats
wastewater independently of the others.
The motor control center (MCC) for Train 1 at the wastewater treatment plant (WWTP)
has recently had a major electrical failure, can no longer be safely operated and needs
to be replaced. Train 1 is the oldest of the three Trains at the wastewater plant. Since
the new headworks has been placed on-line, staff can more easily divert flow to Train 1
and utilize its capacity more frequently. Train 1 will also be used so the other two Trains
may be put out of service temporarily for maintenance.
Trains 2 and 3 are the primary treatment facilities at the wastewater plant. Train 2
currently is not connected to an emergency generator so it does not function properly
during power outages. The City owns a trailer mounted/portable generator that may be
parked at the WWTP and connected for operation of the Train 2 electrical systems
during power outages. This electrical design would include required quick connect and
automatic transfer switch.
Train 3 is currently connected to an emergency generator, but has operational issues
during power outages. The design would investigate these control issues and provide a
solution to correct the current operational problems that are faced by providing
emergency power where it is needed during outages.
The specific items to be addressed in this contract are:
• Train 1 MCC replacement design
Design = $37,280.00 Construction estimate = $406,224.00
• Train 2 generator quick connect and transfer switch (for power outages)
Design = $25,040.00 Construction estimate = $240,240.00
• Train 3 MCC emergency generator switching rewiring
Design = $18,390.00 Construction Estimate = $30,000.00
Cost estimate for construction of the work is $676,464.00. The design contract is
approximately 12% of the estimated construction costs.
Staff recommends approval.
Im
ORDINANCE NO.
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WHEREAS, the City Council of the City of Grapevine desires to maintain its Waste
Water Infrastructure with regular maintenance, repairs and updates as necessary; and
WHEREAS, funding for the maintenance activities, and the design phase services
relative to the repairs and updates needed for the Wastewater Treatment Plant is not
currently included in the Fiscal Year 2015-2016 Utility Enterprise Capital Projects Fund
Budget; and
WHEREAS, maintenance, repairs and updates to the Wastewater Treatment Plant
is necessary to insure continued optimum operation of the Plant and the City's Waste
Water Distribution System.
NOW, •' BE IT • BY THE CITY COUNCIL • THE CITY 01
GRAPEVINE, TEXAS: M
Section 1. That all matters stated in the preamble of this ordinance are true and
correct and are hereby incorporated into the body of this ordinance as if copied in their
entirety.
Section 2. That the City Council hereby authorizes an amount of $88,781.00 be
appropriated from the 2015 Utility Bonds to the Utility Enterprise Capital Projects Budget
for design phase services relative to the Wastewater Treatment Plant Electrical
Improvements Project.
Section 3. That a copy of the revised Fiscal Year 2015-2016 Utility Enterprise
Capital Projects Fund Budget document 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 OF
GRAPEVINE, TEXAS on this the 15th day of December, 2015.
UNISROAT103
ATTEST:
APPROVED AS TO FORM:
ORD. NO. 2