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Board Approves More Testing to Find Cost Efficient Repairs in Sewer Lines
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Mary Bernhard
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Manhattan American
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September 25, 2008
Narrowing down the leaks in Manhattan's sewer lines where storm water pours in and inundates the sewage treatment plant is no easy task.
After having performed a smoke test of the system in the older parts of town, Van Calombaris, Village Engineer from Robinson Engineering, reported to the village board Tuesday, September 12, "the smoke test found a large number of defects that are allowing storm water into the flow."
An inspection of the town's manholes found 126 defects out of 220 manholes that were inspected.
Calombaris explained the cost of putting unnecessary flow through the sewage treatment plant.
"If a repair is less then $12,500, the repair would be cost effective," Calombaris said.
Calombaris recommended that the village authorize dye water flooding for the appropriate areas so that the exact needed repairs can be identified. The cost of the test would be $5,000. He also recommended that all of the cost effective repairs identified in the manhole inspections and smoke testing report be made and Robinson Engineering would prepare the bid documents for bidding if directed so by the board.
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"The engineering agreement for this job was not to exceed a figure of $75,000," Calombaris said about the cost of engineering and repairs. "The final billing on this job will be around $50,000."
The village budgeted $270,000 for sanitary sewer work in this year's budget. This would leave around $220,000 in the budget for subsequent work if desired.
Calombaris recommended finding the biggest sources of inflow with the dye test and designate them for repairs.
"In our eyes this would pay for itself," Calombaris said.
The board authorized the flood water dye test to move forward.
In other town maintenance issues, the board authorized the replacement of an influent wet well exhaust fan at a cost of $4,595.
"There is a ventilation blower in the wet well which was original to the old sewer plant and needs replacement," Bill Liszka, Superintendent of Public Works told the board.
The fan draws air from the influent wet well to keep potentially harmful gasses from collecting.
The board also authorized the replacement two of the four pumps that return bio mass to the beginning of the plant. The two pumps that have failed cost more to repair than to replace. The board authorized $11,744 for the purchase of the pumps.
The most important decision of the evening (to area children anyway) was the establishment of Halloween hours for the village. Little ghosts and goblins, princesses and Hannah Montanas will be allowed to trick or treat from 3 to 7 p.m. on Friday, October 31.
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