(A) No person shall introduce or cause to be introduced into the municipal separate storm sewer system (MS4) any discharge that is not composed entirely of storm water.
(B) It is an affirmative defense to any enforcement action for violation of division (A) above that the discharge was composed entirely of one or more of the following categories of discharges:
(1) A discharge authorized by, and in full compliance with, an TPDES permit (other than the TPDES permit for discharges from the MS4);
(2) A discharge or flow resulting from firefighting by the Fire Department;
(3) Agricultural storm water runoff;
(4) A discharge or flow from water line flushing, but not including a discharge from water line disinfections by super chlorination or other means unless the total residual chlorine (TRC) has been reduced to less than four mg/l;
(5) A discharge or flow from lawn watering, or landscape irrigation, or other irrigation water;
(6) A discharge or flow from a diverted stream flow or natural spring;
(7) A discharge or flow from uncontaminated pumped ground water or rising ground water;
(8) Uncontaminated ground water infiltration (as defined as 40 C.F.R. § 35.2005(20)) to the MS4;
(9) Uncontaminated discharge or flow from a foundation drain, crawl space pump, footing drain or sump pump;
(10) A discharge or flow from a potable water source not containing any harmful substance or material from the cleaning or draining of a storage tank or other container;
(11) A discharge or flow from air conditioning condensation that is unmixed with water from a cooling tower, emissions scrubber, emissions filter or any other source of pollutant;
(12) A discharge or flow from individual residential car washing;
(13) A discharge or flow from a riparian habitat or wetland;
(14) A discharge or flow from water used in street washing that is not contaminated with any soap, detergent, degreaser, solvent, emulsifier, dispersant or any other harmful cleaning substance;
(15) Storm water runoff from a roof that is not contaminated by any runoff or discharge from an emissions scrubber or filter or any other source of pollutant.
(1998 Code, § 50-231) (Ord. 10-05, passed 3-17-2010)