Pursuant to Howard County’s General Permit, the following discharges are authorized and therefore are not considered “illicit” so as to be prohibited under this subchapter:
(A) Discharges of stormwater (including snowmelt) to waters of the state from all known outfalls and conveyances that are owned and/or operated by an MS4 entity.
(B) Stormwater commingled with other discharges either regulated by other NPDES permits or determined by IDEM or the MS4 entity to not be a significant source of pollutants, including without limitation, the following:
(1) Water line and hydrant flushing for maintenance;
(2) Irrigation water;
(3) Footing, foundation, and crawl space drains (uncontaminated);
(4) Excess storm sewer cleaning water not collected by a vacuum truck (uncontaminated);
(5) Fire suppression activities;
(6) Uncontaminated pumped ground water;
(7) Springs;
(8) Residential car washing;
(9) Non-commercial car washing by community organizations;
(10) External building wash down, without detergents;
(11) Dechlorinated/debrominated residential swimming pool discharges;
(12) Uncontaminated ground water infiltration (as defined at 40 CFR 35.2005(20));
(13) Pavement wash waters, provided spills or leaks of toxic or hazardous materials have not occurred (unless all spill material has been removed) and where detergents are not used; and
(14) Uncontaminated condensate from air conditioning units, coolers and other compressors, and from outside storage of refrigerated gasses or liquids.
(Ord. 2004-BCC-37, passed 11-1-04; Am. Ord. 2010-BCC-12, passed 4-19-10; Am. Ord. 2023 BCCO-25, passed 6-19-23)