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ITEM 19
City Council Memorandum Public Works & Utilities Memo No. UA22-117
Date:
June 9, 2022
To:
Mayor and Council
Thru:
Joshua H. Wright, City Manager
Andy Bass, Deputy City Manager
John Knudson, Public Works and Utilities Director
From:
John Ardans, Utilities Maintenance Manager
Subject:
Purchase of Ocotillo Water Reclamation Facility Sludge Silo Platform Installation Services
Proposed Motion:
Move City Council approve the purchase of silo platform installation services, from SDB, Inc., utilizing the 1GPA Agreement No. 18-15PV-12, in an amount not to exceed $250,000.
Background/Discussion:
The Ocotillo Water Reclamation Facility (OWRF), located at 3333 S. Old Price Road, treats up to 18 million gallons per day of wastewater from the businesses and residents of Chandler. Sludge handling is the final process completed at the wastewater facility. During the sludge handling process, the residual sludge collected from the treatment process is dewatered using several belt presses. The dewatered sludge is stored in a silo for future hauling to the landfill. Currently, maintenance access to the top of this silo is gained via a small narrow platform at the top of the silo that is about 40 feet above the ground. This platform has been deemed a potential safety risk due to its small size and height from ground level.
In consultation with the designer and silo manufacturer, an engineered solution to improve staff safety was designed. Improvements will include a wider platform and higher handrails, making for safe access while maintenance work is being performed. SDB, Inc., has submitted a proposal utilizing the 1GPA job order contracting process to demolish the existing access and install the new and improved platform. This purchase will fund both the construction and installation of the new safety platform.
Evaluation:
Paradise Valley Unified School District competitively solicited and awarded a contract for general contractor services to SDB, Inc., on behalf of 1GPA. The City has a current agreement with 1GPA allowing for the cooperative use of its contracts. The 1GPA contract is valid through May 17, 2023.
Fiscal Impact
Account No.
Fund Name
Program Name
Dollar Amount
CIP Funded Y/N
615.3970.5219.0.0.0
Wastewater Operating
Other Professional Services
$250,000
N
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