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Council concurs with $35,000 change order to add stainless steel covers to wastewater primary tanks
Summary
Council approved a change order of about $35,000 to install stainless steel covers on primary clarifier tank drive units and gearboxes as protection from weather; staff said the cost breaks down to roughly $8,900 per clarifier tank cover.
Council concurred with a change order for the wastewater treatment-plant primary improvements project to purchase stainless steel covers for primary-tank drive units and gearboxes.
Staff said the change order "would be about 35,000 or about $8,900 per cover per clarifier tank," explaining the covers will protect expensive drive units and gears from corrosion. Council agreed the additional cost is an inexpensive insurance measure and approved the change order.
Council asked staff questions about longevity and whether the covers would alter treatment chemistry; staff said the covers protect mechanical components and do not change wastewater chemistry.
