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Discharge sump pumps in a proper manner—sump pumps should discharge into the storm drain, underdrain or into the yard (if a storm drain is not available). Sump pumps should not discharge into the sanitary sewer because it is unnecessary costly treatment.
Random inspections will be conducted targeting areas in Mankato showing increased sanitary sewer flows. The penalty for incorrect sump pump hookup can be substantial—a fine of $100/month (calculated from the date of the previous inspection) and possible suspension of water and sanitary sewer service.