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VOLUNTEERS ANALYZE WASTE WATER PLANT 3-3-10 LMS

Roger Grenier and Calvin Leman have been voluntarily working to determine the root cause of Environmental Protection Agency (EPA) violations at the cityís waste water treatment plant.

At the March 3rd meeting of the Salmon City Council each reported his findings.

Grenierís background is welding engineering, failure analysis and quality. Lemanís is biochemistry, data reduction and analysis. Grenier said they both came to the same conclusions from different perspectives. He said, ďNamely that the plant has not been proactively managed to date. The most recent EPA violation notice states that they have still not received notification that Salmon has developed and implemented an operation and maintenance plan for this facility even though it has been an essential permit requirement for several years.Ē

Grenier went on to say that the historical data on plant performance since 1988 has an abnormal amount of variation and scatter making trends impossible to identify. He said the first priority is to stabilize the data. He said he has been told that neither detailed sampling plans nor protocols exist. He outlined the changes he sees as needed including instrumentation, developing plans and base line performance data, lagoon oxygenation, replacing collapsed sections of sewer pipe and making the changes one at a time so effects of each action can be seen.

Grenier said Leman focused on treatment lagoon conditions and included an estimate of approximately $20,000 for the purchase of real time instrumentation which would enable proper lagoon management procedures to be implemented. Grenier said the instrumentation would provide the lagoon performance data needed in order to meet permit requirements.

Leman told the council that the bacteria on the bottom of the treatment lagoon need to have oxygen to do their job and he said that can be easily solved biologically.

Leman said EPA problems are being caused by not giving the agency the requested operations and maintenance plans. He said in his opinion the solution to present violations is sending the EPA the documents they want and getting air to the bacteria in the bottom of the lagoon.

Each member of the council was given a complete packet of study findings along with Grenier and Lemanís recommended Corrective Action Plan.

A work session with the City Council, mayor, Keller Engineering, Calvin Leman, Roger Grenier, Salmon public works representatives and Idaho Department of Environmental Quality is scheduled for Monday March 22, 2010 to discuss the appropriate go-forward strategy. It will be held at City Hall. The public is invited.


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