Laserfiche WebLink
9 <br />10 <br />11 <br />12 <br />13 <br />14 <br />15 <br />16 <br />17 <br />18 <br />19 <br />20 <br />21 <br />22 <br />23 <br />24 <br />25 <br />26 <br />27 <br />28 <br />2 <br />Hi h <br />0.7 <br />10 000 <br />7,000 <br />3 <br />Medium <br />0.5 <br />16,000 <br />8,000 <br />4 <br />Low <br />0.3 <br />7,000 <br />2 100 <br />5 <br />Low <br />0.2 <br />10,000 <br />2,000 <br />4 <br />Low <br />0.3 <br />Sum <br />24,700 <br />*Plant Factor from . ),MLS 11 <br />ETWU=(51.1)(0.62) 1 +0 <br />= 1,102,116 gallons pe y� <br />Compare ETWU with MAWA: For this example MAWA = (51.1) (0.62) <br />[(0.7 x 50,000) + (0.3 x 0)] = 1,108,870 gallons per year. The ETWU <br />(1,102,116 gallons per year) is less than MAWA (1,108,870 gallons per <br />year). In this example, the water budget complies with the MAWA. <br />(2) Example ETWU calculation: total landscape area is 50,000 square feet, <br />2,000 square feet of which is planted with edible plants. The edible plant <br />area is considered a Special Landscape Area (SLA). The reference <br />evapotranspiration value is 51.1 inches per year. The plant type, plant <br />factor, and hydrozone area are shown in the table below. <br />H drozone <br />Plant Water <br />Use Type(s) <br />Plant <br />Factor <br />(PF)* <br />Hydrozone <br />Area (HA) <br />(square feet <br />PF x HA <br />(square feet <br />1 <br />High <br />0.8 <br />7,000 <br />5,600 <br />2 <br />High <br />0.7 <br />9,000 <br />6,300 <br />3 <br />Medium <br />0.5 <br />15,000 <br />7,500 <br />4 <br />Low <br />0.3 <br />7,000 <br />2,100 <br />5 <br />Low <br />0.2 <br />10,000 <br />2,000 <br />Sum <br />23,500 <br />6 <br />SLA <br />1.0 <br />2,000 <br />2,000 <br />*Plant Factor from WUCOLS <br />ETWU = (51.1)(0.62)1 23,500 +2,000) <br />_ (31.68) (33,099 + 2, (9.71 <br />= 1,111,936 gallons per year <br />Compare ETWU with MAWA. For this example: <br />MAWA = (51.1) (0.62) [(0.7 x 50,000) + (0.3 x 2,000)] <br />= 31.68 x [35,000 + 600] <br />= 31.68 x 35,600 <br />23152.08101 \8405361.1 <br />-13- <br />