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Well test shows lower gross alpha level; city to continue monitoring and services for residents
Summary
City staff reported that June sampling of well No. 8 measured gross alpha at 7 pCi/L, lowering the rolling annual average to about 12 pCi/L. The Department of Health advised continued monitoring; the city reported about 13 residents had applied to its filtration assistance program so far.
Public Works staff reported new June sampling results for well No. 8 showing a gross alpha reading of 7 picocuries per liter, which reduced the rolling annual average from the low-16 pCi/L range to just over 12 pCi/L. "That number alone now drops our annual average to about 12, just over 12," the presenter said, noting that the Department of Health cautioned the city should continue exploring solutions and not assume a permanent change.
Staff said the city will maintain quarterly sampling for wells 8 and 12 and can reduce sampling frequency for well 14 after consistent low results. The presenter also said about 13 residents had applied for the city's filtration assistance program to date. Council members thanked staff and asked to continue updates when the next batch of samples is received in the fall.
The report emphasizes monitoring and process continuity rather than declaring compliance changes: staff warned levels fluctuate seasonally and that ongoing testing and potential mitigation remain necessary.
