Surface Water Quality Program
523 East Capitol Avenue
Pierre, South Dakota 57501-3181
South Dakota Department of Environmental and Natural Resources General Permit for Storm Water Discharges Associated with Industrial Activities - effective October 1, 2012 thru September 30, 2017
1. Sampling and testing of storm water shall be performed in accordance with the EPA industrial storm water sampling guide, except where there are conflicts with this permit.
Magnitude: results in actual discharge
Interval Between Storms: at least 72 hours