"Applied water"means the portion of water supplied by the irrigation system to the landscape.
"Automatic irrigation controller"means an automatic timing device used to remotely control valves that operate an irrigation system. Automatic irrigation controllers schedule irrigation events using either evapotranspiration (weather-based) or soil moisture data.
"Backflow prevention device"means a safety device used to prevent pollution or contamination of the water supply due to the reverse flow of water from the irrigation system.
"Certified irrigation designer"means a person certified to design irrigation systems by an accredited academic institution, a professional trade organization or other program such as the U.S. Environmental Protection Agency's WaterSense Irrigation Designer Certification Program and Irrigation Association's Certified Irrigation Designer Program.
"Certified landscape irrigation auditor"means a person certified to perform landscape irrigation audits by an accredited academic institution, a professional trade organization or other program such as the U.S. Environmental Protection Agency's WaterSense Landscape Irrigation Certification Program, the Irrigation Association's Certified Landscape Water Conservation Professional Programs and the California Landscape Contractors Association's Certified Water Manager Program.
"Certified professional" or "authorized professional"means a certified irrigation designer, a certified landscape irrigation auditor, a licensed landscape architect, a licensed landscape contractor, a licensed professional engineer, or any other person authorized by the state to design a landscape, an irrigation system, or authorized to complete a water budget.
"Drip irrigation"means any nonspray low volume irrigation system utilizing emission devices with a flow rate measured in gallons per hour. Low volume irrigation systems are specifically designed to apply small volumes of water slowly at or near the root zone of plants.
"Establishment period"means the first year after installing the plant in the landscape or the first two years if irrigation will be terminated after establishment. Typically, most plants are established after one or two years of growth.
"ET adjustment factor"(ETAF) means a factor of 0.55 for residential and 0.45 for nonresidential areas, that, when applied to reference evapotranspiration, adjusts for plant factors and irrigation efficiency, two major influences upon the amount of water that needs to be applied to the landscape. ETAF for a special landscape area shall not exceed 1.0. ETAF for existing nonrehabilitated landscapes shall not exceed 0.8.
"Evapotranspiration rate"means the quantity of water evaporated from adjacent soil and other surfaces and transpired by plants during a specified time.
"Flow rate"means the rate at which water flows through pipes, valves and emission devices, measured in gallons per minute, gallons per hour, or cubic feet per second.
"Hardscapes"means areas located beneath a roof or covered by manufactured, nonplant pervious or impervious materials.
"Hydrozone"means a portion of the landscaped area having plants with similar water needs. A hydrozone may be irrigated or nonirrigated.
"Invasive plant species"means species of plants not historically found in California that spread outside cultivated areas and can damage environmental or economic resources.
"Irrigation audit"means an in-depth evaluation of the performance of an irrigation system. An irrigation audit includes, but is not limited to: inspection, system tune-up, system test with distribution uniformity or emission uniformity, reporting overspray or runoff that causes overland flow, and preparation of an irrigation schedule.
"Irrigation efficiency"(IE) means the measurement of the amount of water beneficially used divided by the amount of water applied. Irrigation efficiency is derived from measurements and estimates of irrigation system characteristics and management practices. The minimum average irrigation efficiencies for purposes of this chapter are 0.75 for overhead spray devices and 0.81 for drip systems.
"Irrigation survey"means an evaluation of an irrigation system that is less detailed than an irrigation audit. An irrigation survey includes, but is not limited to: inspection, system test, and written recommendations to improve performance of the irrigation system.
"Landscape" and "landscape area"mean all the planting areas, turf areas, and water features in a landscape design plan subject to the maximum applied water allowance 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, other nonirrigated areas designated for nondevelopment (e.g., open spaces and existing native vegetation), agricultural uses, commercial nurseries and sod farms.
"Landscape architect"means a person who holds a license to practice landscape architecture in California as further defined by the California Business and Professions Code Section
5615.
"Landscape contractor"means a person licensed by the state of California to construct, maintain, repair, install, or subcontract the development of landscape systems.
"Landscape project"means the total area comprising the landscape area, as defined in this chapter.
"Lateral line"means the water delivery pipeline that supplies water to the emitters or sprinklers from the valve.
"Low volume irrigation"means 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 water use plant"means a plant species whose water needs are compatible with local climate and soil conditions. Species classified as "very low water use" and "low water use" by WUCOLS, having a regionally adjusted plant factor of 0 to 0.1 for very low water using plants, and 0.1 through 0.3 shall be considered low water use plants.
"Mined-land reclamation projects"means any surface mining operation with a reclamation plan approved in accordance with the Surface Mining and Reclamation Act of 1975.
"Mulch"means any organic material such as leaves, bark, straw, compost, or inorganic mineral materials such as rocks, gravel, and decomposed granite left loose and applied to the soil surface for the beneficial purposes of reducing evaporation, suppressing weeds, moderating soil temperature, and preventing soil erosion.
"New construction"means the construction of a new building or structure containing a landscape or other new land improvement, such as a park, playground, or greenbelt without an associated building.
"No water using plant"means a plant species with water needs that are compatible with local climate and soil conditions such that regular supplemental irrigation is not required to sustain the plant after it has become established.
"Noxious weeds"means any weed designated by the weed control regulations in the Weed Control Act and identified on a regional district noxious weed control list. Lists of invasive plants are maintained at the California Invasive Plant Inventory and USDA invasive and noxious weeds database.
"Operating pressure"means the pressure at which the parts of an irrigation system are designed by the manufacturer to operate.
"Overspray"means the irrigation water which is delivered beyond the target area.
"Permit"means an authorizing document issued by local agencies for new construction or rehabilitated landscapes.
"Pervious"means any surface or material that allows the passage of water through the material and into the underlying soil.
"Project applicant"means the individual or entity submitting a project landscape application required under Section
17.53.060, to request a permit, plan check, design review, or new or expanded water service from the city. A project applicant may be the property owner or his or her designee.
"Recreational area"means areas dedicated to active play such as parks, sports fields, and golf courses where turf provides a playing surface.
"Rehabilitated landscape"means any relandscaping project that requires a permit, plan check, design review, or requires a new or expanded water service application.
"Runoff"means water which is not absorbed by the soil or landscape to which it is applied and flows from the landscape area.
"Soil survey"means a soil analysis and grading report, including a date, signature, and license number of the preparing professional, undertaken for the purpose of assisting the applicant in reviewing existing conditions at their project site evaluating opportunities to maximize water savings benefits, consistent with a form prescribed by the city.
"Special landscape area"(SLA) means an area of the landscape dedicated solely to edible plants, areas irrigated with recycled water, water features using recycled water and areas dedicated to active play such as parks, sports fields, and golf courses, where turf provides a playing surface.
"Station"means an area served by one valve or by a set of valves that operate simultaneously.
"Turf"means a ground cover surface of mowed grass. Annual bluegrass, Kentucky bluegrass, Perennial ryegrass, Red fescue, and Tall fescue are cool-season grasses. Bermuda grass, Kikuyu grass, Seashore Paspalum, St. Augustine grass, Zoysia grass, and Buffalo grass are warm-season grasses. Turf shall be considered a high water use plant.
"Valve"means a device used to control the flow of water in the irrigation system.
"Water feature"means a design element where open water performs an aesthetic or recreational function. Water features include ponds, lakes, waterfalls, fountains, artificial streams, spas, and swimming pools (where water is artificially supplied).
"WUCOLS"means the current version of the Water Use Classification of Landscape Species current edition published by the University of California Cooperative Extension, the Department of Water Resources.
(Ord. 931 § 1(Exh. A), 2022)