Other than naturally-occurring stormwater, no person shall discharge or cause to be discharged into the MS4 or any conveyance any materials, including but not limited to, pollutants or hazardous materials or waters containing any pollutants or hazardous materials that cause or contribute to a violation of applicable water quality standards. Allowable discharges that create or have the potential to create unsafe conditions on city streets or other public rights-of-way are prohibited. The commencement, conduct or continuance of any illegal discharge to the MS4 or any conveyance is prohibited except that the following discharges are exempt from discharge prohibitions established by this subchapter, if such discharges do not violate applicable water quality standards:
(A) Water line flushing or water from other potable sources, landscape irrigation or lawn watering, diverted stream flows, rising ground water, ground water infiltration to storm drains, uncontaminated pumped ground water, uncontaminated ground water infiltration, foundation or footing drains, air conditioning condensation, springs, noncommercial washing of vehicles, natural riparian habitat or natural wetland flows, swimming pools if discharged to the ground, not to a city street or directly to any part of the MS4 or any conveyance, fire fighting activities, street wash water and any activity related to normal performance of municipal operations such as street sweeping. Dewatering of existing ponds requires a permit from the Kentucky Division of Water.
(B) Discharges specified in writing by the city as being necessary to protect public health and safety.
(C) Scientific research and sewer infrastructure use the fluorescent dye is an allowable discharge.
(D) The prohibition shall not apply to any non-stormwater discharge permitted under an NPDES permit, waiver or waste discharge order issued to the discharger and administered under the authority of the USEPA or the KDOW, provided that the permit holder 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 MS4 or any conveyance.
(Ord. 2727, passed 12-13-2010)