Field Office Compliance - Assistance


Assistance ID - 108747
Des Moines Water Works - 310338211
9966 Maffitt Lake Dr Cumming, IA 50061
Dallas County

FO 5

Report
File Name File Type File Date Note
Comments
9/17/2019 FO5 WS MOR, DNR <[email protected]> (sent by [email protected]) 1:08 PM (0 minutes ago) to Mike, Kyle In the spirit of self-monitoring/reporting, knowing the filter effluent turbidity must not exceed 0.5 NTU in 2 consecutive measurements taken 15 minutes apart, at the end of the first four hours of continuous filter operation and that an IFE values greater than 0.5 NTU seems to be reported more frequently (filters 6 and 12 this month), I'm going to assume these are being reported correctly as non-events. If IFE exceeds 1 NTU please plan to submit supporting documentation for each filter. Thanks. JANET GASTINEAU
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