HomeMy WebLinkAboutItem 11 - Wastewater Treatment Plant MEMO TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL
FROM: BRUNO RUMBELOW, CITY MANAGER W�
MEETING DATE: JANUARY 19, 2010
SUBJECT: APPROVAL OF A RESOLUTION TO OVERHAUL BLOWER
ASSEMBLIES AT THE WASTEWATER TREATMENT PLANT
RECOMMENDATION:
City Council to consider approval of a resolution to award a purchase order to Air Mac,
Inc. to overhaul five blower assemblies at the Wastewater Treatment Plant in the total
estimated amount of$29,400.
FUNDING SOURCE:
Funds are budgeted in account 200-43370-534-0 Utility Enterprise Fund/Wastewater
Treatment Infrastructure Maintenance/Permanent Capital Maintenance.
BACKGROUND:
This procurement will be made as an exception to the normal bidding procedure in
accordance with Local Government Code Chapter 252, Subchapter B, Section 252.022
(3). This code exempts a local municipality from the normal bidding procedure for a
procurement that is necessary because of unforeseen damage to public machinery,
equipment or other property.
The purpose of this procurement is to dismantle, overhaul and rebuild three multi-stage
centrifugal blowers at the Wastewater Treatment Plant. The blowers add dissolved
oxygen to aeration basins and digesters for mixing and are an integral component in the
treatment of wastewater and discharge permit requirements. The Texas Commission on
Environment Quality Discharge Permit requires a minimum of 6.0 mgll leaving the
treatment plant at all times. The centrifugal blowers in Train #3 have three blowers that
need to be rebuilt. The blowers are more than ten years old and have been in
continuous operation 24 hours a day, seven days per week.
Air Mac, Inc. has provided this service in the past and is familiar with the City's
multistage centrifugal blowers. The estimated cost to rebuild all three blowers is
$29,400. This is an estimate only. A final cost cannot be determined until the blowers
have been dismantled and inspected to see what is required to rebuild each blower.
Staff recommends approval of a resolution to award a purchase order to Air Mac, Inc. to
rebuild the three multistage centrifugal blowers for the estimated cost of$29,400.
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January 13, 2010(12:51 PM)
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RESOLUTION NO. C�
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF
GRAPEVINE, TEXAS, MAKING FINDINGS OF CERTAIN -.
FACTS RELATIVE TO THE PURCHASE OF REPAIR
OVERHAUL SERVICES AND PARTS TO THREE
CENTRIFUGAL BLOWERS AND AUTHORIZING THE CITY
MANAGER ORTHE MANAGER'S DESIGNEE TO EXECUTE
SAID DOCUMENTS AND PROVIDING AN EFFECTIVE DATE
WHEREAS, the City`of Grapevine, Texas is in need of purchasing-repair overhaul
services and parts for three multi-stage centrifugal blowers at the City Wastewater
Treatment Plant; and
WHEREAS; each centrifugal blower must be dismantled in order to determine the
exact cost of;the repair and overhaul; and
WHEREAS, this procurement is on exception to the normal bidding procedure in
accordance with Local Government Code Chapter 252.; Subchapter B, Section 252.022
(3):
NOW;THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF ,
GRAPEVINE; TEXAS.
Se idn 1; That,all matters stated in the above preamble are true and correct and
are incorporated.herein as"if copied in their entirety.
Section 2." That the City Council of the City of Grapevine authorizes Air Mac, Inc.
to dismantle the centrifugal blowers and detertni'ne a cost for the repair and authorizes the
expenditure of the budgeted $29,400.00.
Section 3. That the City Manager, or his designee, is authorized to take all steps
necessary to consum mate the purchase of these services.
Section 4. That this resolution shall take effect from and after the date of its
passage.
PASSED AND APPROVED BY THE CITY COUNCIL OF THE CITY OF
GRAPEVINE, TEXAS on this the 19th day of January, 2010.
APPROVED:
ATTEST:
APPROVED AS TO FORM:
RES. NO. 2