No person shall discharge or cause to be discharged into the municipal separate storm sewer system or watercourses any materials other than stormwater, including, but not limited to pollutants or waters containing any pollutants that cause or contribute to a violation of applicable water quality standard. The commencement, conduct or continuance of any illegal discharge to the municipal separate storm drain system is prohibited except as follows:
(A) The following discharges are exempt from discharge prohibitions established by this chapter: Water line flushing or other potable water sources, landscape irrigation or lawn watering, diverted stream flows, rising groundwater, groundwater infiltration to storm drains, uncontaminated pumped groundwater, foundation or footing drains (not including active groundwater de-watering system), crawl space pumps, air conditioning condensation, springs, non-commercial washing of vehicles, natural riparian habitat or wetland flows, swimming pools (if de-chlorinated, typically less than one part per million of chlorine), fire fighting activities and any other water source not containing pollutants;
(B) Discharges specified in writing by the City Engineer as being necessary to protect public health and safety;
(C) Dye testing is an allowable discharge, but requires a written notification to the City Engineer prior to the time of test; and
(D) The prohibition shall not apply to any non-stormwater discharge permitted under a NPDES permit, waiver or waste discharge order issued to the discharger and administered 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 for any discharge to the municipal separate storm sewer system.
(Prior Code, § 53.08) (Ord. 18-31, passed 9-4-2018)