Prohibition of illicit discharges. No person shall throw, drain, or otherwise discharge, cause, or allow others under its control to throw, drain, or otherwise discharge into the county's MS4 any pollutants or waters containing any pollutants, other than stormwater. The commencement, conduct, or continuance of any illegal discharge to the storm drain-system is prohibited except as described 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 ground water, ground water infiltration to storm drains, uncontaminated pumped ground water, foundation or footing drains, crawl space pumps, air conditioning condensation, springs, noncommercial washing of vehicles, natural riparian habitat or wetland flows, swimming pools (if dechlorinated to a level of less than one PPM chlorine), firefighting activities, and any other water source not containing pollutants.
(B) Discharges specified in writing by the authorized enforcement agency as being necessary to protect public health and safety.
(C) Dye testing is an allowable discharge, but requires a written notification to the authorized enforcement agency at least three days prior to the time of the test.
(D) Any non-stormwater discharge permitted under an NPDES permit, waiver, or waste discharge order issued to the discharger and administered by the Minnesota Pollution Control 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 drain system. Proof of compliance with said permit may be required in a form acceptable to the Division prior to the allowance of discharges to the MS4.
(Ord. 92-2019, passed 4-16-19)