§ 15.04.010  DEFINITIONS.
   The terms used in this chapter have the meanings set forth below:
   BACKFILLING.  To refill an excavation, usually with excavated material.
   BACKFLOW PREVENTION DEVICE.  A safety device used to prevent pollution or contamination of the water supply due to the reverse flow of water from the irrigation system.
   CHECK VALVE or ANTI-DRAIN VALVE.  A valve located under a sprinkler head or other location in the irrigation system to hold water in the system to prevent drainage from the sprinkler heads when the system is off.
   ESTABLISHED LANDSCAPE.  The point at which plants in the landscape have developed significant root growth into the site, typically, one or two years of growth.
   ESTIMATED ANNUAL WATER USE or EAWU.  Estimated total water use per year as calculated by the formula contained in § 15.04.050(B)(12).
   HYDROZONE.  A portion of the landscaped area having plants with similar water needs. A hydrozone may be irrigated or non-irrigated.
   INVASIVE SPECIES.  Non-indigenous species (e.g., plants or animals) that adversely affect the habitats they invade economically, environmentally, or ecologically, as set out in the Western Riverside County Multi-Species Habitat Conservation Plan and as designated by the city.
   LANDSCAPE ARCHITECT.  A person who holds a license to practice landscape architecture in the State of California as set out in Cal. Gov’t Code § 5615.
   LANDSCAPED AREA or LA.  All of the planting areas, turf areas, and water features in a landscape design plan subject to the Maximum Applied Water Allowance (MAWA) calculation. The landscape area does not include footprints of buildings or structures, sidewalks, driveways, parking lots, decks, patios, gravel or stone walks, other pervious or impervious hardscapes, and other non-irrigated areas designated for non-development (e.g., open spaces and existing native vegetation).
   LOCAL WATER PURVEYOR.  Any entity, including a public agency or private water company that provides retail water service to customers in the city.
   LOW VOLUME IRRIGATION.  The application of irrigation water at low pressure through a system of tubing or lateral lines and low-volume emitters such as drip, drip lines, and bubblers. LOW VOLUME IRRIGATION systems are specifically designed to apply small volumes of water slowly at or near the root zone of plants.
   MAXIMUM APPLIED WATER ALLOWANCE or MAWA.  The upper limit of annual applied water allowed for the established landscaped area.
   OVERHEAD SPRINKLER IRRIGATION SYSTEMS.  Systems that deliver water through the air (e.g., pop ups, impulse sprinklers, spray heads and rotors, etc.).
   REFERENCE EVAPOTRANSPIRATION or ETo.  A standard measurement of environmental parameters which affect the water use of plants. ET, is given in inches per day, month, or year. REFERENCE EVAPOTRANSPIRATION is used as the basis of determining the maximum applied water allowances so that regional differences in climate can be accommodated. REFERENCE EVAPOTRANSPIRATION numbers shall be taken from the most current EvapoTranspiration Zones Map by the California Department of Water Resources.
   REHABILITATED LANDSCAPES.  Any re-landscaping project that requires a permit, plan check, or design review, and/or would fall within § 15.04.020.
   SPECIAL LANDSCAPE AREA.  An area of the landscape dedicated to edible plant, areas irrigated with recycled water, or publicly accessible areas dedicated to active play such as parks, sports fields, golf courses, or similar areas where turf provides a playing field or where turf is needed for high traffic activities.
   TEMPORARILY IRRIGATED.  Irrigation for the purposes of establishing plants, or irrigation which will not continue after plant establishment and which is for a period of six months or less.
   WATER INTENSIVE LANDSCAPING.  A landscape with a WUCOLS plant factor of 0.7 or greater.
   WUCOLS.  The publication entitled Water Use Classification of Landscape Species by the University of California Cooperative Extension (1999 or most current version).
(Ord. 2009-61, passed 11-3-2009)