The purposes of this chapter are:
A. To protect and enhance the water quality of the City’s watercourses, water bodies and wetlands pursuant to, and consistent with, the federal Water Pollution Control Act (Clean Water Act) (33 U.S.C. § 1251 et seq.), the Porter-Cologne Water Quality Control Act (Wat. Code § 13000 et seq.) and the City’s National Pollutant Discharge Elimination System (NPDES) permit, as such permit is amended and/or renewed by the California Regional Water Quality Control Board (Regional Board).
B. To protect and promote the health, safety and general welfare of the citizens of the City by prescribing regulations to effectively prohibit non-storm water discharges to the City’s storm drain system and to reduce the discharge of pollutants in storm water to the maximum extent practicable by:
1. Regulating non-storm water discharges to the City’s storm drain system;
2. Controlling the discharge to the City’s storm drain system from spills, overland flow, dumping or disposal of materials other than storm water;
3. Reducing pollutants in storm water discharges from the City’s storm drain system to the maximum extent practicable;
4. Minimizing degradation of the water quality of watercourses and the disruption or pollution of natural or City-authorized drainage flows caused by the activities of clearing and grubbing, grading, filling and excavating of land, as well as sediment and pollutant run off from other construction-related activities; and
5. Controlling industrial and commercial pollutant discharges to the City’s storm drain system.