Trustees hear report on sewer plant failure

By Hank Lohmeyer


Trustees hear report on sewer plant failure | Cedaredge, sewer plant

Photo submitted A worker is shown at the bottom of one of the two, huge sewage treatment basins at Cedaredge's new wastewater treatment plant. The white circles are drain valves that were installed incorrectly in both the sewage treatment basins. They wil

The Cedaredge Public Works Department has been dealing with some big headaches at the newly constructed sewer plant including the failure of drain valve assemblies which are key components in the plant's operations.

In a recent report to town trustees, the department detailed a defect in the multi-million dollar facility's construction that will be difficult to fix and that will cut the plant's treatment capacity in half until the defect is corrected.

According to the report submitted by public works:

"In the less than six months that the new WWTF has been operational, we have had to drain one of the basins down to make repairs on the aeration grid on three occasions. When we noticed the last time there were problems again, we contacted JVA [project engineer] and Moltz [construction company] and requested their presence for the next repair.

"Upon inspection, it was determined that the grid was assembled incorrectly and the entire grid would need to be disassembled and put back together per the manufacturer's recommendations. Moltz has agreed to perform this work [and] will complete one side and start on the other side when it is convenient for the town. At a minimum, it will be several weeks before we can even consider pulling down the other basin because it takes that long to rebuild our bacteria population. Especially as the cold weather sets in, it is extremely important to maintain the health of the plant.

"We also have a pretty lengthy punch list of items that have not been completed or small issues that have come up that Moltz will start addressing when they are here. They plan on having a small crew on site the entire time during sludge removal from the old sewage lagoons."