FROM: Robert Thompson, General Manager
Originator: Riaz Moinuddin, Director of Operations & Maintenance
SUBJECT:
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PURCHASE OF SPARE PARTS FOR THICKENING AND DEWATERING CENTRIFUGES FOR PLANT NO. 1
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GENERAL MANAGER'S RECOMMENDATION
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RECOMMENDATION:
A. Approve a Sole Source Purchase Order to GEA Mechanical Equipment US, Inc. for the purchase of spare parts for Thickening and Dewatering centrifuges for Plant No. 1, for a total amount not to exceed $226,997, including applicable sales tax and freight; and
B. Approve a contingency of $45,400 (20%).
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BACKGROUND
As part of Project No. P1-101, three GEA-Westfalia Separator Thickening Centrifuges and three GEA-Westfalia Dewatering Centrifuges were commissioned at Plant No. 1. Thickening centrifuges improve sludge feed for the digestion process to increase biosolid density. Dewatering centrifuges remove water from biosolids to make the material suitable for truck transportation. The sludge thickening and the biosolids dewatering processes are central to the biosolids recycling program and comply with the Orange County Sanitation District's (OC San) operating permits.
RELEVANT STANDARDS
* 24/7/365 treatment plant reliability
* Maintain a proactive asset management program
* Operate and maintain facilities to minimize impacts on surrounding communities, including odor, noise, and lighting
PROBLEM
OC San has identified critical Original Equipment Manufacturer (OEM) spare parts that are subject to normal wear and must be kept in inventory. These parts are essential for maintaining equipment reliability and are only available from the original manufacturer. Due to their long lead times, delays in procurement could significantly impact equipment availability.
PROPOSED SOLUTION
Approve a Sole Source Purchase Order to procure spare parts for centrifuges from GEA Mechanical Equipment US, Inc. (GEA) to maintain asset reliability, availability and minimize process d...
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