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Council approves six-month trial for ultrasonic algae-control system after staff cites escalating costs
Summary
After staff reported $10,000 in recent chemical treatments and continuing algae growth, the council authorized a six-month trial of an ultrasonic algae-control device with an upfront cost of $13,005.46 and roughly $3,400 monthly service fees; trial payments would apply to purchase if the city chose to buy the system.
Utilities staff told the council that algae in the municipal lagoons has continued to grow despite chemical treatments that cost roughly $10,000 over recent years. Lindy (S5) described an ultrasonic, anchored system with satellite monitoring that automatically adjusts signals to suppress algae; the vendor offered a purchase plan or a six-month trial.
S5 gave specific cost figures: an upfront installation cost of $13,005.46 and roughly $3,400 per month during the six-month trial; staff said funds paid during the trial would be credited toward purchase if the city decided to buy the system. Council authorized a six-month trial and asked staff to track effectiveness and report back.
