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File #: ID 21-1803    Version: 1 Name:
Type: City Council Item Status: Passed
File created: 9/26/2021 In control: City Council
On agenda: 10/4/2021 Final action: 10/4/2021
Title: Authorize the City Manager to Execute a Contract 2021-026 with Synagro South, LLC for Biosolids Removal, Dewatering and Hauling in an Estimated Annual Amount of $359,409.00
Attachments: 1. Bid Tabulation
Agenda Item: 7(c)
Prepared By: Jeffrey E. Poteet
Business: Consent Agenda
Department: Water and Sewer
Subject:
Title
Authorize the City Manager to Execute a Contract 2021-026 with Synagro South, LLC for Biosolids Removal, Dewatering and Hauling in an Estimated Annual Amount of $359,409.00
Body


BACKGROUND:
The Marco Island Reclaimed Water Production Facility collects all the wastewater generated by the City of Marco Island. The plant currently produces approximately 455 dry tons of waste solids per year that is removed from the sludge holding tank as sludge with 2.0% to 2.5% weight solids. The sludge is either taken offsite for disposal or filtered onsite to make a filter cake, with 17-20% weight solids, which is then disposed offsite.

Because of the seasonal increase in population from 15,000 year-round residents to about 35,000 during January through about April 15, the rate of production of waste solids also increases significantly. In February and March solids production peaks at about 60 tons per month and decreases during the summer months to about 25 tons per month. When the City has 100% of the residences and commercial properties on the central sewer system, the amount of dry solids produced annually will increase to about 500 to 550 tons per year.

This bid (ITB #2021-026) was advertised on 8/24/21, 297 suppliers were notified, 10 downloaded the bid package and on 9/23/21 City received one bid for this service. Synagro South, LLC was the only firm that submitted a bid.



City staff looked at the cost to provide this service in-house (capital & operating). The capital expenses include the costs for the centrifuge, a trailer to house the centrifuge, dewatering equipment, a road tractor and trailer. The annual operational cost included staffing, chemicals, landfill/tipping fees, operation and maintenance of the equipment. An internal rate of return was calculated and is attached. Due to the required capital outlay and the expected ...

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