Controller Alan Butkovitz says his office monitored BigBelly compactor collections in March and April, and found collections from the compactors averaged 10 a week.
The compactor's manufacturer, BigBelly Solar, had projected that the compactors would reduce the number of weekly collections from 17 to five.
The city purchased 500 compactors and 210 recycling units for more than $2.1 million. Officials say they were meant to cut collection costs by 70 percent.
The Streets Department says the compactors have allowed the city to eliminate 24 positions and cut collection from seven to five days per week.
BigBelly officials say the controller's report is riddled with errors.
