(2) “Director” for the purpose of this chapter shall mean the Director of the Public Works Department or his/her designee unless otherwise explicitly designated.

(3) “Discharge” means to throw, drain, release, dump, spill, empty, emit or pour forth any matter, or cause or allow any matter to flow, run, or seep from land or be thrown, drained, released, dumped, spilled, emptied, emitted, or poured into any system regulated under this title.

(4) “Hazardous materials” means any material, including any substance, waste, or combination thereof, which because of its quantity, concentration, or physical, chemical, or infectious characteristics may cause, or significantly contribute to, a substantial present or potential hazard to human health, safety, property, or the environment when improperly treated, stored, transported, disposed of, or otherwise managed.

(5) “Hyperchlorinated” means water that contains more than 10 milligrams per liter of chlorine.

(6) “Illicit connection” means any manmade conveyance that is connected to the stormwater system without a permit, excluding roof drains and other similar type connections. Examples include sanitary sewer connections, floor drains, channels, pipelines, conduits, inlets, or outlets that are connected directly to the stormwater system. Illicit connections for discharges to the sanitary sewer system are defined by the sewer district.

(7) “Illicit discharge” means any direct or indirect nonstormwater discharge to the stormwater drainage system that causes or contributes to a violation of State water quality, sediment quality, or groundwater quality standards including, but not limited to, sanitary sewer connections, industrial process water, interior floor drains, fuel islands, car washing, and gray water systems. Discharges from fire-fighting activities are not included in this definition. Illicit discharges for the sanitary sewer system are defined by the sewer district.

(8) “Minimum requirements” means the minimum requirements for stormwater management described in the adopted stormwater manuals.

(9) “Nonstormwater discharge” means any discharge to the storm drain system that is not composed entirely of stormwater.

(10) “NPDES Phase II Permit” means the Western Washington Phase II stormwater permit issued by the Washington State Department of Ecology in accordance with the National Pollution Discharge Elimination System as promulgated under the Clean Water Act.

(11) “Pervious surface” means a native vegetated surface converted to a nonnative pervious surface, including, but not limited to, pasture land, grassland, cultivated land, lawn, landscaping or bare soil or any alteration of existing nonnative pervious surface that results in increased surface and stormwater runoff as defined in the adopted stormwater manuals.

(12) “Pollutant” means anything which causes or contributes to pollution. Pollutants may include, but are not limited to: paints, varnishes, and solvents; oil and other automotive fluids; nonhazardous liquid and solid wastes and yard wastes; refuse, rubbish, garbage, litter, or other discarded or abandoned objects and accumulations, so that same may cause or contribute to pollution; floatables; pesticides, herbicides, and fertilizers; hazardous substances and wastes; sewage, fecal coliform, and pathogens; dissolved and particulate metals; animal wastes; wastes and residues that result from constructing a building or structure; and noxious or offensive matter of any kind.

(13) “Redevelopment project” means a project that proposes one or more of the following modifications to a site that is already substantially developed (35 percent or more existing impervious surface coverage):

(14) “Source control BMP” means a BMP intended to prevent contaminants from entering surface and stormwater or groundwater including the modification of processes to eliminate the production or use of contaminants. Source control BMPs may be either structural or nonstructural. Structural source control BMPs involve the construction of a physical structure on site or other type of physical modification to a site. An example of a structural source control BMP involves the modification or addition of managerial or behavioral practices. Nonstructural source control BMPs involve the modification of or addition of managerial or behavioral practices. An example of a nonstructural source control BMP is using less toxic alternatives to current products or sweeping parking lots.

(15) “Stormwater manuals” means the manuals, regulations, and standards adopted in CMC 13.25.020.

(16) “Stormwater pollution prevention plan” or “SWPPP” means a document that describes the best management practices and activities to be implemented by the property owner to identify sources of pollution or contamination at a premises, and the actions to eliminate or reduce pollutant discharges to stormwater, stormwater conveyance systems, and/or receiving waters to the maximum extent practicable.

(17) “Treatment BMP” means a BMP intended to remove contaminants once they are already contained in stormwater. Examples of treatment BMPs include but are not limited to oil/water separators, biofiltration swales, and wet settling facilities. (Ord. 06-17 § 5 (Exh. C); Ord. 26-16 § 4)