Environment & Sustainability | Surface Water Management (Title 13)
xiv. Steam cleaning wastes;
illicit connection and is prohibited with the following exceptions:
xv. Soaps, detergents or ammonia;
i. Connections conveying allowable discharges;
xvi. Swimming pool backwash;
ii. Connections conveying discharges pursuant to an NPDES permit, other than an NPDES stormwater permit, or a state waste discharge permit; and iii. Connections conveying effluent from on-site sewage disposal systems to subsurface soils. c. BMPs shall be applied to any business or residential activity that might result in prohibited discharges as specified in the King County Stormwater Pollution Prevention Manual or as determined necessary by the director. Activities that might result in prohibited discharges include but are not limited to the following:
xvii. Chlorine, bromine and other disinfectants;
xviii. Heated water;
xix. Domestic animal wastes;
xx.
Sewage;
xxi. Recreational vehicle waste;
xxii. Animal carcasses;
xxiii. Food wastes;
xxiv. Bark and other fibrous materials;
i. Potable water line flushing;
xxv. Collected lawn clippings, leaves or branches;
ii. Lawn watering with potable water;
xxvi. Silt, sediment or gravel;
iii. Dust control with potable water;
xxvii. Dyes, except as stated in subsection 2.e. of this section; xxviii. Chemicals not normally found in uncontaminated water;
iv. Automobile and boat washing;
v. Pavement and building washing;
vi. Swimming pool and hot tub maintenance;
xxix. Any hazardous material or waste not listed above.
vii. Auto repair and maintenance;
b. Illicit Connections. Any connection identified by the director that could convey anything not composed entirely of surface and stormwater directly to surface and stormwater or groundwater is considered an
viii. Building repair and maintenance;
ix. Landscape maintenance;
x. Hazardous waste handling;
Revisions | June 29, 2022 Effective | January 1, 2022
160 | Title 21: Sammamish Development Code
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