3B Public Hearing 2010 0119 - Laserfiche WebLink

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Note: Authority cited: Section 21082, Public Resources Code. Reference: Sections 21080, 21082, Public Resources Code. § 493. Provisions for Existing Landscapes. (a) A local agency may designate another agency, such as a water purveyor, to implement some or all of the requirements contained in this ordinance. Local agencies may collaborate with water purveyors to define each entity's specific responsibilities relating to this ordinance. Note: Authority Cited: Section 65595, Government Code. Reference: Section 65596, Government Code. § 493.1 Irrigation Audit, Irrigation Survey, and Irrigation Water Use Analysis. (a) This section, 493.1, shall apply to all existing landscapes that were installed before January 1, 2010 and are over one acre in size. (l) For all landscapes in 493.1 (a) that have a water meter, the local agency shall administer programs that may include, but not be limited to, irrigation water use analyses, irrigation surveys, and irrigation audits to evaluate water use and provide recommendations as necessary to reduce landscape water use to a level that does not exceed the Maximum Applied Water Allowance for existing landscapes. The Maximum Applied Water Allowance for existing landscapes shall be calculated as: MAWA = (0.8) (ETo)(LA)(0.62). (2) For all landscapes in 493. ] (a), that do not have a meter, the local agency shall administer programs that may include, but not be limited to, irrigation surveys and irrigation audits to evaluate water use and provide recommendations as necessary in order to prevent water waste. (b) Alt landscape irrigation audits shall be conducted by a certified landscape irrigation auditor. Note: Authority Cited: Section 65595, Government Code. Reference: Section 6559b, Government Code. § 493.2 Water Waste Prevention. (a) Local agencies shall prevent water waste resulting from inefficient landscape irrigation by prohibiting runoff from leaving the target landscape due to low head drainage, overspray, or other similar conditions where water flows onto adjacent property, non-irrigated areas, walks, roadways, parking lots, or structures. Penalties for violation of these prohibitions shall be established locally. (b) Restrictions regarding overspray and runoff may be modified if: (l) the landscape area is adjacent to permeable surfacing and no runoff occurs; or (2) the adjacent non-permeable surfaces are designed and constructed to drain entirely to landscaping. Note: Authority cited: Section 65594, Government Code. Reference: Section 65596, Government Code. § 494. Effective Precipitation. (a) A local agency may consider Effective Precipitation (25% of annual precipitation) in tracking water use and may use the following equation to calculate Maximum Applied Water Allowance: MAWA= (ETo - Eppt) (0.62) [(0.7 x LA) + (0.3 x SLA)]. Note: Authority Cited: Section 65595, Government Code. Reference: Section 65596, Government Code. Appendices. 21