(A) No person shall discharge or cause to be discharged into the storm drainage facilities or watercourses any materials, including but not limited to pollutants or waters containing any pollutants that cause or contribute to a violation of applicable water quality standards, other than storm water.
(B) Discharges from the following activities are exempt and shall not be considered an illicit discharge when the discharger conducts the activity such that the least amount of non-storm water as practicable enters the storm water drainage facilities:
(1) Watering of lawns, landscaping, and gardens;
(2) Exterior washing of personal motorized vehicles by residents;
(3) Draining of water from swimming pools or spas, after the chlorine or other disinfectant concentrate of such water shows a reading of zero concentration on a test kit;
(4) Flushing of water lines and hydrants, or other discharges from potable water sources if the chlorine concentration is less than 1.0 milligrams per liter measured at the point of entry into the storm water drainage system;
(5) Flows from firefighting;
(6) Crawl space and basement sump pumps which are properly permitted;
(7) Condensation from air conditioning units;
(8) Gravity drainage from groundwater piping systems, including foundation and footing drains, and roof drainage downspouts;
(9) Discharges from naturally occurring rising ground waters, floodwaters, springs and flows from riparian habitats and wetlands.
(C) The prohibition shall not apply to any non-storm water discharge permitted under an NPDES permit, waiver, or waste discharge order issued to the discharger and administered by the State of California under the authority of the Federal Environmental Protection Agency, provided that the discharger is in full compliance with all requirements of the permit, waiver, or order and other applicable laws and regulations, and provided that written approval has been granted by the city for any discharge to the storm drain facilities.
(D) With written concurrence of the Regional Water Quality Control Board, the city may exempt in writing other non-storm water discharges which are not a source of pollutants to the storm drainage facilities nor waters of the U.S.
(Ord. 705-C.S., passed 1-17-06) Penalty, see § 10.99