April 1 – ASHLAND – Divers will go underwater at the Ashland Area Municipal Authority reservoir for a required inspection to check a large pipe and valve.
The AAMA board received an update on the lengthy video inspection at its personal meeting on Monday.
Project manager Jennifer M. Kowalonek of Alfred Benesch & Co., the agency’s consulting engineers, said a coordination meeting with two contractors was held on March 3.
An inspection last year found a problem with a pipe leading to the valves, which required a video inspection by the State Department of Environment.
The first video inspection last year showed severe tuberculosis or the formation of small mounds of corrosion inside the iron pipe, increasing resistance to the flow of water.
The camera was unable to advance approximately 190 feet into the pipe due to dirt.
This inspection also indicated that the operation of the upstream valve had a potential problem with the seat of the valve. A video inspection would provide information on how best to approach the situation and how to clean the pipe.
Mobile Dredging & Video Pipe from Chester and Progress Marine from West Chester will provide video inspection / disposal and diving services.
“The work is tentatively scheduled for the week of April 12,” said Kowalonek. “The week before, AAMA employees will switch the raw water source to the 12-inch line, enabling diving work to begin on the 16-inch line on April 12th and cleaning on April 13th.”
After the meeting, Kowalonek said the valve and submersible agency would not switch to wells.
“You (the authority) actually have two lines from the reservoir,” she said. “You typically use a 16” line, but use your 12 “line while the work on the 16” line is complete. The water system should have little or no impact on the water system. … “
The story goes on
In another section of the report, Kowalonek said no dam consultations were planned at the dam.
Benesch developed the Call for Proposals (RFP) for the required drilling at the site and submitted the plan for the work to DEP.
Kowalonek cited DEP backlog for delay.
“If we get DEP approval, we intend to send the RFP to a select group of drills,” Kowalenek said in her report.
The work is to determine the cause of the seepage through the mother’s breast.
It was discovered about five years ago while lifting the reservoir chest to control water overflow, as mandated by DEP.
Since its discovery, infiltration has not changed, apparently from a water table and not from the reservoir through the mother’s breast, which has been measured frequently when it changed.
Contact the author: [email protected]; 570-628-6023
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