(A) A project applicant may complete the Water Efficient Landscape Worksheet for any project, which shall include the two sections of information noted below:
(1) A hydrozone information table for the landscape project; and
(2) A water budget calculation for the landscape project. For the calculation of the maximum applied water allowance and estimated total water use, a project applicant shall use the ETo values from the reference evapotranspiration table in § 27.3-19. For geographic areas not covered in the table, use data from other cities located nearby in the same reference evapotranspiration zone, as found in the CIMIS Reference Evapotranspiration Zones Map, Department of Water Resources, 1999.
(B) When required, water budget calculations shall adhere to the following requirements:
(1) The plant factor used shall be from WUCOLS. The plant factor ranges from 0 to 0.3 for low water use plants, from 0.4 to 0.6 for moderate water use plants, and from 0.7 to 1.0 for high water use plants.
(2) All water features shall be included in the high water use hydrozone and temporarily irrigated areas shall be included in the low water use hydrozone.
(3) All special landscape areas shall be identified and their water use calculated as described below.
(4) ETAF for special landscape areas shall not exceed 1.0.
(C) Maximum applied water allowance. The maximum applied water allowance shall be calculated using the equation: MAWA=(ETo)(0.62)[(0.7xLA)+(0.3xSLA)].
(Ord. 1005, passed 8-3-2010)