Agreement and Award of Bid and Purchase Orders with Multiple Vendors for WWTP RAS Reconfiguration Equipment
Yo: Jaycee L. Holman, City Clerk,
From: Keith Watts, Purchasing Manager
CC: Clint Dolsby, Jacy Jones
ate: 5/30/12
e: June 5 City Council Meeting Agenda Item
The Purchasing Department respectfully requests that the following item be placed on the
June 5~' City Council Consent Agenda.
Approval of Award of Bid "RAS Reconfiguration Equipment" to multiple vendors and
authorize the Purchasing Manager to issue and sign purchase orders for the following
amounts:
Wesco - $82,328.00 (Switchboard)
Utility Management - $28,816.00 (Submersible Mixers)
Pacific Equipment - $163,200.00 (Vertical Turbine Pumps)
This award is the result of Formal IFB #PW-12-10328C issued May 7~' and opened
May 22~d. Four bids were received.
Recommended Council Action: Approval of Award of Bid and authorization to
issue and sign Purchase Orders for the Not-To-Exceed amount of the total of
the Low Bids of $274,344.00.
Thank you for your consideration.
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Mayor Tammy de Weerd
City C®oaneii Memberse
Keith Bird
Brad Hoaglun
Charles Rountree
David Zaremba
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TO: Keith Watts
FROM: Clint Dolsby
Assistant City Engineer
DATE: 5/30/2012
SUBJECT: Project Information; WWTP RAS Reconfiguration Equipment
I. DEPARTMENT CONTACT PERSONS
Clint Dolsby, Asst. City Engineer (Project Manager) 489-0341
Warren Stewart, PW Engineering Manager 489-0350
Tom Barry, Public Works Director 489-0372
II. DESCRIPTION
A. Back rog and
The City of Meridian wastewater treatment plant periodically experiences mixed
liquor settleability problems dtte to the excessive growth of Microthrix Parvicella
(MP) in their secondary process which diminishes secondary clarifier capacity.
Plant staff controls settleability by reducing the solids retention time (SRT) to
less than fora days, thereby wasting MP from the process at the cost of
wastewater plant capacity. A total nitrogen (TN) effluent concentration of 15
mg/L is required for Class A reclaimed water which is difficult to obtain at this
low SRT.
B. Proposed Project
The proposed project will be the procurement of the equipment for the project to
reroute the return activated sludge to the Aeration Basins through a denitrification
basin in an effort to inhibit the growth of microthrix and promote the
effectiveness of the fermentation process. Inhibiting the growth of microtht7x will
in tarn provide more reliable removal of nitrogen and increase the capacity of the
secondary treatment system to the rated plant capacity. Without this project, the
wastewater plant will continue to experience microthrix caused settleability issues
which increases our vulnerability to NPDES permit violations in our pending
pei7nit and could impact our ability to deliver reclaimed water. Additionally, the
fermentation process will be less effective without the denitrificationbasfn.
Pnge 1 of 2
III. IMPACT
A. Strate is Impact:
This project will help to work towards the strategic objectives to increase
efficiencies at the Wastewater Treatment Plant and investigate alternative
methods of wastewater treatment to reduce nihogen and phosphorous loadings
into our receiving stream.
B. Service/Deliver,>~pact:
Improving the efficiency of the operation of the biological treatment processes
will increase the secondary treatment capacity of the wastewater treatment plant.
This will provide operational flexibility for the biological phosphorus removal
processes in the aeration basins.
C. FiscalImnacts:
Budgeted Amount (3590-96101) $825,000.00
Current Obligations (3590-96101) $252,751.00
Balance Available (3590-96101) $572,249.00
Equipment Bid (3590-96101) $274,344.00
Unobligated Balance $297,905.00
IV. TIME CONSTRAINTS
Council's approval will allow the procurement of the equipment for this critical
project at the wastewater treatment plant to be completed this spring and
constntction to begin in the late spring or early summer of this fiscal year.
V
LIST OF ATTACHMEI`T`''°
A• Equipment Bids
Approved for Council Agenda:
rJ` .~~ I
Date
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'T®: Jaycee L. Holman, City Clerk,
~r®rn: Keith Watts, Purchasing Manager
CC: Roxanne Holland, Jacy Jones
®ate: 5/30/12
Re: June 5 City Council Meeting Agenda Item
The Purchasing Department respectfully requests that the following item be placed on the
June 5'" City Council Agenda under Purchasing Department Report.
Approval of Award of Bid and Agreement for "RAS Reconfiguration Equipment" to
multiple vendors and authorize the Purchasing Manager to issue and sign purchase
orders and/or equipment contracts for the following amounts:
Wesco - $82,328.00 (Switchboard)
Utility Management - $28,816.00 (Submersible Mixers)
Pacific Equipment - $163,200.00 (Vertical Turbine Pumps)
This award is the result of Formal IFB #PW-12-10328C issued May 7~' and opened
May 22"d. Four bids were received.
Recommended Council Action: Approval of Award of Bid and Agreement for
the Not-To-Exceed amount of the Low Bid of $54,899.00.
Thank you for your consideration.
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