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Nitrate L Ladino C111tllllatiOn1 iCUlltifJtICd) <br />Notes: <br />1. Ave Monthly precip. for Liden, Western Regional Climate Center <br />2. Estimated Average monthly runoff volume; zero assumed for this site with full on-site retention of rainfall level site. <br />3. "Available precip" equal to ave.monthly runoff volume precip minus estimed runoff volume. <br />4. Referenced Eto obtained from CIMIS Zone 12, Eastside Sacramento -San Joaquin Valley; Represents Value for lawns and other uniform turf areas. <br />S. Actual ET adjustment based on the site specific landscape/plant cover (fractional multiplier); see below for calculating "composite factor", 0.83 for this site. <br />6. Net rainfall recharge (" deep percolation") equal to Avaiibale precip (3) minus Actual ET (5); Negative values set to zero. <br />Calculation of Composite of ETD Adjustment Factor for Hypothetical Residential Lot <br />a. Key reference: University of Cali. Division of Agriculture and Natural Resources: Estimating Landscape Water Requirements (Table 1) <br />b.Site Development Conditions: <br />Land Condition <br />Fractiona <br />I Total <br />Plant <br />Factor* <br />Product <br />Impervious Area <br />0 <br />0.1 <br />0.10 <br />rees, Shrubs Groundcovers <br />0.074 <br />0.5 <br />0.04 <br />Lawn (Cool Season) <br />0.926 <br />0.8 <br />0.74 <br />Herbaciuos Perrenials <br />0 <br />0.5 <br />0.00 <br />Composite <br />1 <br />bcnTl6,'�ic. Zus;l3, 5t do�Jsimd, Cuf2 <br />0.88 <br />categories for impervious area assume <br />nominal 0.05 to 0.10 to account for <br />evotranspiration of rainfall retained on paved <br />Table 1. Plant Factors (PF) for established landscape plants, turfgrasses, <br />and garden crops to provide acceptable performance in California'. <br />Plant Type <br />Plant Factor <br />T .., Shn:bs,er; <br />b,5 <br />aoodr Plant;; <br />Hwb,c-0l�s Per--gri,,3``;; <br />:nnuei F c,'; -r; & Ee7'_;r,,n ;:!_r,k; <br />Ge^era!Turf?r;;;La.�n;,o;rl-;;on :ail <br />vcrizm 'Aracs LIVI;, d. c n •sE3;C' <br />� � . v <br />bcnTl6,'�ic. Zus;l3, 5t do�Jsimd, Cuf2 <br />4:,1 ruit: E. 7rzin <br />1,C <br />n: c;'.'rzp;aai:':� is i':ai c,`i^: •'. � r;r <br />tkkcEd Flant!ny; <br />' <br />Uih tie aiF <br />1 Values do not apply to any plant production operations, such as nurseries, greenhouses, sod farms, or commercial farms. <br />Z Plant Factor shown is the annual average Kc value: monthly or seasonal Kc's may be available if more Precision is desired <br />3 Plant Factor does not apply to sports fields, golf greens or tees. <br />4 From UC reference; note plant factors are annual average values; additional refinement may be needed for seasonal crops. <br />