Compliance with all terms and conditions of a valid NPDES permit shall be deemed compliant with the provisions of this section. The City will adopt requirements identifying BMPs for any activity, operation, or facility which may cause or contribute to pollution or contamination of stormwater, the storm sewer system, or waters of the State. The owner or operator of such activity, operation or facility shall provide, at their own expense, reasonable protection from accidental discharge of prohibited materials or other wastes into the storm sewer system or waters of the State through the use of these structural and non- structural BMPs. These BMPs shall be part of a stormwater pollution prevention plan (SWPPP) as necessary for compliance with requirements of the NPDES permit. Any person responsible for a property or premises, which is, or may be, the source of an illicit discharge, may be required to implement, at their expense, additional BMPs to prevent the further discharge of pollutants to the City's MS4. (Ord. 2018-04, 1-16-2018)