40-8   Discharges To The Municipal Storm Sewer System MS4
   A.   Permitted Discharges.
      1.   The following discharges are exempt from discharge prohibitions established by this ordinance: water line flushing or other potable water sources; landscape irrigation or lawn watering; diverted stream flows; rising ground water; ground water infiltration to storm drains; uncontaminated pumped ground water; foundation or footing drains (not including active groundwater dewatering systems); crawl space pumps; air conditioning condensation; springs; non-commercial washing of vehicles; natural riparian habitat or wet-land flows; swimming pools (if dechlorinated – typically less than one PPM chlorine); firefighting activities; and any other water source not containing Pollutants.
      2.   Discharges determined by the City to be necessary to protect public health and safety.
      3.   Dye testing if the City is notified in writing prior to the time of the test.
      4.   Any non-storm water discharge permitted under an National Pollutant Discharge Elimination system 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 storm drainage system.
   B.   Prohibited Discharges.
      1.   The following discharges are strictly prohibited from entering the City Storm Sewer Conveyance System established by this ordinance: wastewater from the washout of concrete, wastewater from the washout and cleanout of stucco, paint, form release oils, curing compounds, other construction materials, fuels, oils, other pollutants used in vehicle and equipment operation and maintenance, soaps, and solvents used in vehicle and equipment washing.
      2.   Any other discharge that is not permitted by this ordinance.