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RECEIVED <br /> Nitrate Loading Calculations(continued) <br /> JAN 13 2021 <br /> Notes: ENVIRONMENTAL HEALTH <br /> 1.Ave Monthly precip.for Lodi,Western Regional Climate Center DEPARTMENT <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 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 Fractional Plant Product <br /> Total Factors <br /> Impervious Area 0 0.1 0.10 <br /> Trees,Shrubs Groundcovers 1 0.5 0.50 <br /> Lawn(Cool Season) 0 0.8 0.00 <br /> Herbaciuos Perrenials 0 0.5 0.00 <br /> Composite 1 1 1 0.60 <br /> area assume nominal 0.05 to 0.10 to account for <br /> evotranspiration of rainfall retained on paved surfaces,gutters, <br /> etc. <br /> Table 1.Plaut Factors(pF)for establlshad landscape Wrrt,,brllrasses. <br /> a.Pardnn crops to provide acceptable performance In 6Wornial. <br /> phut type Piard Fm <br /> Use,Shrubs,Vires,Ground—ess <br /> o.s <br /> (woody plata) <br /> slelbaceous PorenrWs a.5 <br /> Desert Adapted pots o.3 <br /> -1 Rowans 6 eeddn0 Plants o.e <br /> G-1 Tlafors.,Lawns.—1—mon 01 <br /> (¢Ecus,K,blu".n.rye,bat) <br /> Gamral Turfprass lawns,wanmseason Ob"3 <br /> (bsm Aa,a-4.51.Auoust u,,W falo) <br /> Home Frit Crops,Deoduous Ob a <br /> Home Frut Crops,EwWQ to <br /> Home vepetabk Crops l.o 2 <br /> "red Kart", AdaPlh-dw b datAf1kP)eaypr . <br /> ae1d lMAfjh#lF <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 averaize 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 />