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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 1 <br />Home Frit CM0, Deodu <br />0.50 <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 />Tab6 L Plree Fedprs (PF) for established landscape plants, tur(prasYs. <br />sad 9-1- Ptvps to provide a ptahk pahm — F Cnlllorniat. <br />PWM type <br />Plsg Fedor <br />Rae, ShmM, Vires, GrDund es <br />0.5 <br />(woody PLm ) <br />HerbaceouF Perak <br />0.5 <br />Desert AdaPted Plants <br />0.3 <br />A [ Fbwers 30eddip Plants <br />0.8 <br />Ge al Tut0rass tame, coal-seasm (tag <br />0.8 s <br />leswe. Ky. wegois, rye. bent) <br />1e 1 TUfgr35F U—, warm-seatan <br />06 z a <br />(bemuda. zoysia, A, Auqusdrl, bu8ab) <br />Home Frit CM0, Deodu <br />0.8 z <br />M— Frit QWps Ee.W— <br />1.0 <br />Home Vt0etable Craps <br />1.0 z <br />MO. pft ry oclot WokPkW Apr <br />sled PtardtW <br />rt Rh rk )Ityhlapr <br />' 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 />d From UC reference; note plant factors are annual average values; additional refinement may be needed for seasonal crops. <br />