Due to the high groundwater table level in certain areas of the Twin Cities Campus, some buildings must install pump out system to collect and redirect groundwater to the storm sewer. Operating a groundwater pump out system may need a National Pollutant Discharge Elimination System (NPDES)/State Disposal System (SDS) permit and/or a Department of Natural Resources (DNR) permit for Appropriation of Waters of the State.
To apply for this permit, both MPCA Water Quality Transmittal form and Groundwater Pump Out form must be completed and submitted to MPCA. The permitting process requires samples of groundwater to be taken and analyzed for a wide range of pollutants. An NPDES/SDS permit may not be required if the groundwater is deemed to be uncontaminated. Once a permit is obtained, self-monitoring along with submittal of routine reports will be required.
DNR Permit for Appropriation of Waters of the State:
A permit must be obtained from DNR if the volume appropriated is in excess of 10,000 gallons/day and/or 1 million gallons/year. Permit requirements include submittal of annual water use report and fee.