An NPDES/SDS industrial storm water permit is required:
for industrial activity; or
if the commissioner determines that a discharge may cause or contribute to a violation of an applicable state or federal water quality rule or regulation. In making this determination, the commissioner shall consider factors including size of discharge, quantity and nature of discharge, and location of discharge.
If a person proposes to construct a new facility or engage in a new activity for which a permit is required, the person shall submit a complete permit application at least 180 days before the planned date of the commencement of facility construction or of the planned date of the commencement of the activity, whichever occurs first.
MS s 115.03
30 SR 125
October 2, 2007