HomeMy WebLinkAboutItem 07 - Dewatering ImprovementsMEMO TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL
FROM: BRUNO RUMBELOW, CITY MANAGER
MEETING DATE: OCTOBER 19, 2021
SUBJECT: WASTEWATER TREATMENT PLANT DEWATERING IMPROVEMENTS
CONTRACT AND APPROPRIATION ORDINANCE
RECOMMENDATION: City Council to consider approving Change Order #1 with Red River
Construction, contract amendment #1 with Garver, LLC for dewatering
improvements at the wastewater treatment plant, and an ordinance to
appropriate the funds.
FUNDING SOURCE: Funds are available in the Utility Enterprise Capital Fund 201 in an
estimated amount of $335,000.
BACKGROUND: n February 2, 2021 Council awarded a contract to Red River Construction
in the amount of $2,357,700.96 for the dewatering process project.
Additional work and equipment modifications are being proposed to the
construction contract under Change Order #1 with Red River in the
amount of $285,157.33 (rounded to $290,000). In addition, staff is seeking
additional construction phase services with Garver, LLC in the amount of
$45,000 to assist with these construction changes.
Change Order #1 includes the following components:
1. Modification of check valve to level and weight swing check valve.
2. Modification of flow meter.
3. Modification of rotary lobe sludge pump to Borger pumps.
4. Credit for removal of insulation on polymer tanks.
5. Revising WWTP entrance including new driveway, gates, wall
modifications, fencing, etc.
6. Addition of a lintel at pump room louver.
7. Modification to the size of the HVAC louver in pump room with
additional exhaust fan.
The bulk of the proposed change order is the reconstruction of the plant
entrance. Currently, delivery trucks block Shady Brook Drive. With the
recent Shady Brook subdivision and the widening of Shady Brook, traffic
has increased significantly. As such, staff is proposing to reconstruct the
gate entrance further into the plant to allow trucks to exit the roadway until
they can access the plant. In addition, the gate improvements will include
the latest City integrated access controls we have on our other City
facilities.
The addition of 137 calendar days to the contract is included in this
change order due to shipment delays of dewatering equipment (COVID
related supply issues), and the WWTP entry reconstruction.
With this change order, the contractor will have until May 24, 2022 to
complete the project.
Staff recommends approval.
ORDINANCE NO. 2021-053
AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF
GRAPEVINE, TEXAS, AUTHORIZING THE APPROPRIATION
OF $335,000.00 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
dewatering improvements 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 $335,000.00 be appropriated
from the Utility Enterprise Capital Fund for the dewatering 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 19th day of October, 2021.
APPROVED:
William D. Tate
Mayor
ATTEST:
Tara Brooks
City Secretary
APPROVED AS TO FORM:
Matthew C.G. Boyle
City Attorney
Ordinance No. 2021-053 2