Sioux Falls regulates stormwater discharges to the Big Sioux River under Ch. 116 of the Code, requiring private sites to control runoff, prevent illicit discharges, and follow MS4 permit standards enforced by Public Works.
The city operates under a federal MS4 stormwater permit issued via SD DANR. Properties one acre or larger must submit a Stormwater Pollution Prevention Plan before grading or construction. Only rain may enter storm drains; soaps, paint, concrete washwater, and yard chemicals are illicit discharges subject to fines. Inspectors monitor outfalls along Skunk Creek and the Big Sioux. Residential car washing on driveways is allowed if biodegradable soap is used and runoff is minimized. Commercial sites need spill kits and trained staff.
Civil penalties up to 500 dollars per day for illicit discharges, plus cleanup costs, mandatory restoration of contaminated waterways, and possible state referral to DANR for repeat industrial violators.
Sioux Falls, SD
Sioux Falls requires a barrier at least 48 inches high around private swimming pools, hot tubs, and spas containing more than 24 inches of water (regulations...
Sioux Falls, SD
Sioux Falls does not regulate year-round lawn ornaments (statuary, religious displays, garden gnomes, flamingos, etc.) on private residential property. Code ...
Sioux Falls, SD
Sioux Falls does not regulate the size or duration of residential inflatable holiday displays (giant snowmen, pumpkins, turkeys, etc.). Standard nuisance, pr...
Sioux Falls, SD
Sioux Falls has no citywide ordinance setting installation or removal dates for holiday lights. Displays are governed by the general nuisance ordinance under...
Sioux Falls, SD
Sioux Falls requires building, gas-line, electrical, and plumbing permits for built-in outdoor kitchens under Code Chapter 150 (adopting the 2018 IBC/IRC, IM...
Sioux Falls, SD
Sioux Falls has no specific ordinance regulating backyard smokers, pellet grills, or wood-fired ovens at one- and two-family dwellings. The general nuisance ...
See how Sioux Falls's stormwater management rules stack up against other locations.
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