HomeMy WebLinkAboutValley Window & Glass Water Budget CalculatorSECTION 3 - WATER BUDGET AREA CALCULATOR The Water Budget Area is the Total Lot Area minus the Building Footprint, Walkways, Hardscape (e.g. sidewalk, pavers, or driveway), Exemptions (e.g. edible gardens or retention ponds), and Artificial Plant Material areasCategory Area (sq. ft.)Total Lot Area 115,209Building Footprint 24,405Hardscape (e.g. sidewalk or pavers) 58,300Walkways 0Exemptions (e.g. retention pond) 0Artificial Plant Materials 0Water Budget Area (sq. ft.) 32,504WATER BUDGET CALCULATORHydrozones are a portion of the landscaped area which has plants with similar water needs grouped together that are typically irrigated by one valve or station with the same irrigation type.When different plant factors are grouped in one hydrozone, the highest plant factor determines the hydrozone water use category. For example, 0.1 and 0.3 plant factor species hydrozoned together would be placed into the low, or 0.3, hydrozone water use category.Another example, drip irrigation with temporary overhead irrigation would be placed into the drip irrigation's hydrozone water use category.Bare mulch areas are included as part of its adjacent hydrozone to account for any future plantings in that area.Section 3 Water Budget Calculator for developments subject to BMC 38.550.040 (e.g. plats, site plans, planned development zones). Water budget not to exceed 8 gal/square foot.Water Budget Area (sq. ft.) 32,504Hydrozone Water Use CategoryPlant Factor (PF)Net ETo Irrigation TypeIrrigation EfficiencyIrrigation gallons per sq. ft. Sq. Ft.Water Use (gal)Percent of Total Water Budget AreaPercent of Total Irrigation DemandHigh 0.8 26 Overhead0.718.4 9,522 175,422 29% 69%Medium 0.6 26 Drip0.910.7 - - 0% 0%Medium 0.6 26 Overhead0.713.8 3,035 41,935 9% 16%Low 0.3 26 Drip0.95.4 - 0% 0%Very Low 0.1 26 Drip0.91.8 19,943 35,720 61% 14%N/A0.126 N/A0.91.8 - - 0% 0%Total Area 32,500 Tree Water CalculatorTree Water Use CategoryPlant Factor (PF)Net ETo Irrigation EfficiencyIrrigation gallons per sq. ft. Number of TreesSq. Ft.Water Use (gal)Percent of Total Water Budget AreaPercent of Total Irrigation DemandHigh 0.8 260.914.3 - - - 0% 0%Medium 0.6 260.910.7 - - - 0% 0%Low 0.3 260.95.4 7 196 1,053 1% 0%Very Low 0.1 260.91.8 17 476 853 1% 0%TOTAL WATER USE 254,983 GAL/SF (AVG) 7.84 Not to exceed 8 GAL/SF.Reference TablesPlant Factor Reference Table* Irrigation Efficiency TablePlant TypeHydrozone Water Use CategorySelected Plant Factor (PF)Irrigation TypeIrrigation EfficiencyTurfgrass cool season/water High 0.8 Overhead 0.7Annual FlowersHigh 0.8 Drip 0.9Warm season turfgrass Medium 0.6Woody plants and herbacious perennialsMedium 0.6Drought adapted woody plants and herbacious perennialsLow 0.3Drought TolerantVery Low 0.1Areas with temporary irrigation onlyTemporary Irrigation0.1*Refer to plant list for exact species plant factors.