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Nitrate Loading Calculations (continued) <br />Notes: <br />1. Ave Monthly precip. for Lodi, 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 />5. Actual ET adjustment based on the site specific landscape/plant cover (fractional multiplier); see below for calculating "composite factor", 0.55 for this site. <br />6. Net rainfall recharge (" deep percolation") equal to Availbale precip (3) minus Actual ET (5); Negative values set to zero. <br />Calculation of Composite of ETO 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 />Fractional <br />Total <br />Plant <br />Factor* <br />Product <br />Impervious Area <br />0.35 <br />0.1 <br />0.04 <br />Trees, Shrubs Groundcovers <br />0.62 <br />0.5 <br />0.31 <br />Lawn (Cool Season) <br />0.03 <br />0.8 <br />0.02 <br />Herbaciuos Perrenials <br />0 <br />0.5 <br />0.00 <br />Composite <br />1 <br />0.37 <br />"Per Table 1for applicable landscape categories for impervious area <br />assume nominal 0.05 to 0.10 to account for evotranspiration of rainfall <br />retained on paved surfaces, gutters, etc. <br />ram, 1. Float rardore (PF) for established laadsr..oe plants, turrOrasses, <br />and garden crops to omkis, acceptable Peeturmen<e in CsIllorniar. <br />Plast Type <br />playa rasa. <br />Tree, Scrubs, Vines, Gro nde- <br />(wood, Planus) <br />0.5 <br />Hart- Perennials <br />0.5 <br />Desert Adapted Plants <br />0.3 <br />annual Flowers S Bedding Plants <br />0.8 <br />General Tatgrass Lawns, cool -season ;tall <br />test... Ry. bluegrass, rye, bent) <br />0.8 Ls <br />General Turfgrass Lawns, -Se- <br />mu <br />(benda, zoysia, St, Augusbne, buffalo) <br />U .d a s <br />Hoow Flit Crops, Deoduous <br />01111. <br />kora Frit Crops, Evergreen <br />1.0 <br />H . Ve0erabw crops <br />3.02 <br />Muod Plantings <br />lFe/duF�Mi a•0atoftrup/ael 1ppr <br />reuN With the Aykw Pf <br />' Values do not apply to any plant production operations, such as nurseries, greenhouses, sod farms, or commercial farms. <br />2 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 />"From UC reference; note plant factors are annual average values; additional refinement may be needed for seasonal crops. <br />