§ 810.01.110  Definitions, I.
   (a)   IMPOUND FACILITIES.  See MOTOR VEHICLE STORAGE/IMPOUND FACILITIES.
   (b)   INCINERATION FACILITIES.  See HAZARDOUS WASTE.
   (c)   INCOMPATIBLE LAND USES.  See SURFACE MINING OPERATIONS.
   (d)   INDIVIDUAL SIGN.  See SIGN.
   (e)   IDLE.  See SURFACE MINING OPERATIONS.
   (f)   INDOOR STORAGE.  See STORAGE, WAREHOUSE.
   (g)   INTERIOR LOT.  See LOT.
   (h)   INTERIOR LOT LINE.  See LOT.
   (i)   INTERIOR SIDE YARD.  See YARD.
   (j)   INDUSTRIAL STRUCTURE.  See STRUCTURE, BUSINESS OR INDUSTRIAL.
   (k)   INDUSTRIAL USE.  One or more of the land use types listed in the tables of “Allowed Land Uses and Permit Requirements” in Division 2 (Land Use Zoning Districts and Allowed Land Uses) under the heading of “Industry, Manufacturing & Processing, Wholesaling.”
   (m)   INFILTRATION RATE.  The rate in which water enters the soil. This rate is expressed as the depth of water per unit of time (i.e., inches per hour).
   (n)   INTENSITY.  The density of development versus open space of an area or property. For example, a Multiple Dwelling land use is a higher land use intensity than Single Dwelling land use.
   (o)   INVASIVE PLANT SPECIES. Plant material, which is non-indigenous species to an area that adversely affects the habitats they invade, either economically, environmentally, and/or ecologically.  Invasive plant species may be regulated by the County’s agricultural agency as a noxious species.  “Noxious weed” is any weed designated by the Weed Control Regulations in the Weed Control Act and identified on a Regional District noxious weed control list.  A complete list of invasive plant material can be found in the California Invasive Plant Inventory and the USDA invasive and noxious weed database.
   (p)   IRRIGATION AUDIT.  An in-depth evaluation of the performance of an irrigation system, which is conducted by a Certified Landscape Irrigation Auditor.  An irrigation audit includes, but is not limited to, an inspection, a systems tune-up, a systems test with distribution uniformity, the reporting of overspray and/or runoff that causes overland flow, and preparation of an irrigation schedule.
   (q)   IRRIGATION EFFICIENCY (IE).  The measurement of the amount of water beneficially used divided by the amount of water applied.  Irrigation efficiency is derived from measurements and estimates from irrigation system characteristics and management practices.  The minimum irrigation efficiency rate shall be 0.71.
   (r)   IRRIGATION HEAD.  The device that delivers water to landscaped areas by means of a nozzle or emission device (e.g., pop-up and fixed spray heads, impact rotors, rotary nozzles, rotors, etc.).
   (s)   IRRIGATION LATERAL LINE.  The secondary pressurized pipeline that delivers water to the emitters, spray/irrigation heads, rotors, etc. from the valve.
   (t)   IRRIGATION MAINLINE.  The main pressurized pipeline that delivers water from the point-of-connection/water source to the valves or outlets within an irrigation system.
   (u)   IRRIGATION SCHEDULE.  A list of irrigation run times per valve station, based on water use, plant material, and irrigation efficiency, throughout a given year.
   (v)   IRRIGATION SYSTEM.  The designed networking of piping, valves, irrigation heads, sensors, and a controller.
(Ord. 4011, passed - -2007; Am. Ord. 4136, passed --2011)