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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 <br />0.1 <br />0.00 <br />Trees, Shrubs Groundcovers <br />1 <br />0.5 <br />0.50 <br />Lawn (Cool Season) <br />0 <br />0.8 <br />0.00 <br />Herbaciuos Perrenials <br />0 <br />0.5 <br />0.00 <br />Composite <br />1 <br />Home Flit UOPs, De: d- <br />0.50 <br />'Per Table Sfor 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 />Ta We 1. Plnel rattan (PF) for eataWiAed lands—Plants, W forasses. <br />.W garden naps to P—ik a mA.We Pe farmaace In C»liforniar. <br />Pl.d Type <br />Plant Factor <br />Tree, SMubs, Vhn, Gro—k- <br />0.5 <br />(woody plmds) <br />Herbaaouf Parerniak <br />0.5 <br />Waned Adapted RW <br />03 <br />Annual rowan i OtdQ q Plants <br />OR <br />Gtner d TWOrass L—, Coo"— (O/ <br />09 <br />fe , Ky. bluecrass, he. bent) <br />G-4 Tu fgfiff lnwns, --on <br />Od 13 <br />(bent»da, zoysia, A. Augustine. buffalo) <br />Home Flit UOPs, De: d- <br />0.8 3 <br />Home Frei[ C.", E—green <br />1.0 <br />Home ve0et�le Crops <br />1,02 <br />PFs{tAtpfine»ge clot oft.*.w ryM <br />Hued Pfartttr. <br />ian hvha F <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 />A From UC reference; note plant factors are annual average values; additional refinement may be needed for seasonal crops. <br />