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City engineer recommends contractor payment for sewer lining; lift station recoating to be inspected
Summary
Hazen City engineers recommended approving a $106,313.14 payment to the sewer lining contractor while retaining $80,000 as work on remaining manholes and epoxy finishes continues; staff also urged a 360° inspection before deciding on a $140,000 lift-station recoating.
City engineer Jerry Cabundi urged the Hazen City Commission to approve a partial payment to the contractor on the sanitary sewer improvement project while holding retainage for unfinished work.
"You can see the total contract price is $2,200,000," Cabundi told commissioners, adding that the contractor is at about $1,900,000 in billings and had submitted payment application No. 6 for $106,313.14. Cabundi said the city would retain $80,000 in retainage until outstanding items — including manhole epoxy work and touch-ups — are finished.
Cabundi said the lining work is roughly 85% complete. He recommended approval of the current payment application on the engineering department’s due diligence.
The commission moved and approved the payment by roll call (Diedrich, Hack, Stern, Shifrow recorded as ayes).
Cabundi also described scaling inside the main sanitary lift station and presented an estimate of about $140,000 to sandblast, bypass-pump and install an epoxy liner. "Replacing the lift station's probably $500,000," he said, and recommended further inspection before committing to the coating work.
"What we can do is the next time Pace is in town we could have that lift station cleaned and run a 360 camera and try to determine what percent the coatings are at and then help you make a good decision," he said.
Commissioners asked staff to obtain additional quotes and to perform or contract for a camera inspection to better quantify coating deterioration and the scope of required repairs. Cabundi told the commission staff will return with findings and additional cost information at a future meeting.
The commission did not commit to the $140,000 coating expense at the meeting; staff flagged it as a high-cost option that merits due diligence and possible staging into a later budget year.
