“Area susceptible to runoff” shall mean any surface exposed to precipitation or in the path of runoff caused by precipitation which leads directly to neighboring properties or to the street.

“Authorized enforcement officer” shall mean the city manager or appropriate designee.

“Automotive repair shops” shall mean and include the following retail businesses and which are identified with a Standard Industrial Code (SIC):

“Best management practices (BMPs)” shall mean the schedule of activities, prohibition of practices, general good housekeeping practices, pollution practices, maintenance procedures and other management practices which prevent or reduce the discharge of pollutants directly or indirectly to waters of the United States. BMPs also include treatment requirements, operating procedures, design specifications and practices to control site runoff, spillage or leaks, sludge or waste disposal, or draining from raw material storage.

“Commercial developments” shall mean any development on private land that is not heavy industrial or residential. This category includes, but is not limited to, hospitals, laboratories and other medical facilities, educational institutions, recreational facilities, plant nurseries, multi-apartment buildings, car wash facilities, mini-malls and other business complexes, shopping malls, hotels, office buildings, public warehouses and other light industrial complexes.

“Illicit connection” shall mean any device through or by which illicit discharges are made into the city’s storm drain system, including, but not limited to, floor drains, pipes, or any fabricated or natural conduits.

“Illicit discharge” shall mean any discharge of any substance or material to the city’s storm drain system that is not composed entirely of storm water runoff, except for the following:

“MS4” shall mean municipal separate storm sewer system.

“New development,” for purposes of this chapter, shall mean and include all construction on unimproved properties as well as construction on improved properties which will result in: (1) an increase of 50 percent or greater in the size of a single-family home; (2) an addition of one or more dwelling units to a multifamily structure; (3) improvements valued at 50 percent or more of the value of existing improvements on nonresidential property.

“New development project” means land-disturbing activities; structural development, including construction or installation of a building or structure; creation of impervious surface; and land subdivision.

“NPDES” shall mean the National Pollutant Discharge Elimination System.

“One-hundred-thousand-square-foot commercial development” shall mean any commercial development that creates at least 100,000 square feet of impermeable area, including parking areas.

“Peak storm runoff rate” shall mean the storm water accumulated and discharged from a property during an average 10-minute period in a 25-year storm.

“Pollutant” shall mean and include, but is not limited to: dredged soil; solid waste; incinerator residue; animal wastes; sewage; gray water; garbage; sewage sludge; chemical wastes; biological materials; radioactive materials; wrecked or discarded equipment; rock; sand; cellar dirt; industrial, municipal and agricultural waste discharge; fertilizers; pesticides; herbicides and fungicides.

“Redevelopment” means land-disturbing activity that results in the creation, addition, or replacement of 5,000 square feet or more of impervious surface area on an already developed site. “Redevelopment” includes, but is not limited to: the expansion of a building footprint; addition or replacement of a structure; replacement of impervious surface area that is not part of a routine maintenance activity; and land-disturbing activities related to structural or impervious surfaces. “Redevelopment” does not include routine maintenance activities that are conducted to maintain original line and grade, hydraulic capacity, original purpose of facility or emergency redevelopment activity required to protect public health and safety.

“Restaurant” shall mean a facility that sells prepared foods and drinks for consumption, including stationary lunch counters and refreshment stands selling prepared foods for immediate consumption.

“Single-family hillside residence” shall mean any lot or parcel of land, residential zoned and in residential use, which has an average slope of 15 percent or greater.

“Standard Industrial Code (SIC)” shall mean a numbering system developed by the U.S. Government, Office of Management and Budget, for the classification of establishments by the type of activity in which they are engaged.

“Standard Urban Storm Water Mitigation Plan (SUSMP)” shall mean a plan that evaluates the issues of a site development including run on, runoff, vehicle maintenance, land disturbances, erosion, sediment control, and revegetation and establishes BMPs to control or reduce the discharge of pollutants from the site, both during and after construction.

“Storm drain system” shall mean and include, but is not limited to: those facilities within the city by which storm water may be conveyed to the waters of the United States, including flood control channels, any roads with drainage systems, municipal streets, alleys, catch basins, curbs, gutters, ditches, manmade channels or storm drains which are not part of a publicly owned treatment works (POTW) as defined at 40 Code of Federal Regulations (CFR) Section 122.2.

“Storm water runoff” shall mean the flow of rainfall runoff or melted snow.

“Subdivision of 10 lots or more” shall mean a division of land occurring on one or more parcels which results in the creation of 10 or more contiguous parcels which could be developed into buildable pads. (Ord. U589 § 1, 2003; Ord. 567 § 1. 2002 Code § 11-2.4).