Chapter 30.91I
"I" DEFINITIONS

Sections:

30.91I.010    Impervious surface.

30.91I.012    Improved road right-of-way.

30.91I.020    Inadequate road condition.

30.91I.030    Incidental use.

30.91I.035    Industrial development.

30.91I.040    Infiltration.

30.91I.050    Inoperable vehicle.

30.91I.050    Repealed.

30.91I.060    Innovative site design.

30.91I.070    Interest rate.

30.91I.080    Invasive weeds.

30.91I.085    In-water structure.

30.91I.010 Impervious surface.

"Impervious surface" means a non-vegetated area that either prevents or retards the entry of water into the soil mantle as compared to infiltration under natural conditions prior to development. A non-vegetated area which causes water to run off the surface in greater quantities or at an increased rate of flow from the flow that was present under natural conditions, prior to development. Common impervious surfaces include, but are not limited to, roofs, walkways, patios, driveways, parking lots, storage areas, concrete or asphalt paving, graveled areas and roads, packed earthen materials, surfaces covered by oil, macadam, asphalt treated base material (ATB), bituminous surface treatment (BST), chip seal, seal coat or emulsified asphalt and cutback asphalt cement, and other surfaces which similarly impede the natural infiltration of stormwater. Open, uncovered retention and detention facilities shall not be considered impervious surfaces for purposes of determining whether the thresholds for applying minimum stormwater management requirements are exceeded pursuant to chapter 30.63A SCC. However, open, uncovered retention and detention facilities shall be considered impervious surfaces for purposes of runoff modeling.

(Added Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 10-026, June 9, 2010, Eff date Sept. 30, 2010; Amended by Ord. 15-103, Jan. 11, 2016, Eff date Jan. 22, 2016)

30.91I.012 Improved road right-of-way.

"Improved road right-of-way" means that portion of the road right-of-way that was altered to construct the road. This includes the road prism, shoulders, sidewalks, cut and fill slopes, and necessary ditches and vegetation management areas.

This definition applies only to "Wetlands and fish and wildlife habitat" regulations in chapter 30.62A SCC.

(Added Amended Ord. 06-061, Aug. 1, 2007, Eff date Oct. 1, 2007)

30.91I.020 Inadequate road condition.

"Inadequate road condition" means any road condition, whether existing on the road system or created by a new development’s access or impact on the road system, which jeopardizes the safety of road users, including non-automotive users, as determined by the county engineer.

(Added Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003)

30.91I.030 Incidental use.

"Incidental use" means a use which occurs as a result of, or in connection with, a permitted use, conditional use, or administrative conditional use. The incidental use must be secondary or minor in nature, but associated with, the permitted use, conditional use, or administrative conditional use.

(Added Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003)

30.91I.035 Industrial development.

"Industrial development" means structures or sites used for the primary purposes of manufacturing, assembly, processing or storage of products or equipment. Industrial uses include those non-agricultural activities which are permitted or conditionally permitted, including administrative conditional use permits, in the following zones or combination of zones as defined in SCC 30.21.025:

(1) Uses allowed only in one or more of the Urban industrial zones;

(2) Uses allowed only in one or more of the Urban industrial zones and in General Commercial;

(3) Uses allowed exclusively in Rural Industrial (RI), or in RI and any other rural or resource zone except R-5, except that the following uses which are allowed in RI and in R-5 shall be included as industrial uses:

(a) Uses related to the processing or storage of forest, woodwaste or mineral products or equipment; and

(b) Explosives storage.

This definition applies only to "Shoreline" regulations in chapters 30.44 and 30.67 SCC.

(Added Amended Ord. 12-025, June 6, 2012, Eff date July 27, 2012)

30.91I.040 Infiltration.

"Infiltration" means the hydrologic process of storm water runoff soaking into the subsoil, commonly referred to as percolation.

(Added Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003)

30.91I.050 Inoperable vehicle.

"Inoperable vehicle" means a motor vehicle or the remains or remnant parts of a motor vehicle which is mechanically inoperative and cannot be made operative without the addition of vital parts or mechanisms, including, but not limited to, wheels, tires, motor and transmission, or the application of a substantial amount of labor.

(Added Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003)

30.91I.050 Innovative neighborhood design.

(Added Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Repealed by Ord. 15-005, March 18, 2015, Eff date April 2, 2015)

30.91I.060 Innovative site design.

"Innovative site design" means development techniques for residential housing using creative approaches to site design, habitat and tree retention, significant reduction of impervious surfaces, changes in traditional site features such as roads and drainage structures in favor of natural habitat features which result in zero or near-zero drainage discharge from the site after development.

This definition applies only to reduced drainage discharge housing demonstration program regulations in chapter 30.34B SCC.

(Added Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003)

30.91I.070 Interest rate.

"Interest rate" means the current interest rate as stated in the Bond Buyer Twenty Bond General Obligation Bond Index.

This definition applies only to "School impact mitigation" regulations in chapter 30.66C SCC.

(Added Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003)

30.91I.080 Invasive weeds.

"Invasive weeds" means a plant that is

(1) Non-native (or alien) to Snohomish County and

(2) Is known to aggressively displace or cause harm to native plants or ecosystems.

(Added Amended Ord. 06-061, Aug. 1, 2007, Eff date Oct. 1, 2007)

30.91I.085 In-water structure.

"In-water structure" means a structure located waterward of the ordinary high water mark that either causes or has the potential to cause water impoundment or the diversion, obstruction, or modification of water flow.

This definition applies only to "Shoreline" regulations in chapters 30.44 and 30.67 SCC.

(Added Amended Ord. 12-025, June 6, 2012, Eff date July 27, 2012)