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RECEIVED <br /> Nitrate Loading Calculations(continued) <br /> Notes: JAN-N 1 3 2021 <br /> 1.Ave Monthly precip.for Lodi,Western Regional Climate Center ;ENVIRONMENTAL HEALTH <br /> 2.Estimated Average monthly runoff volume;zero assumed for this site with full on-site retention of rainfall level site. DEPARTMENT <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",0.55 forthis 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 Plantproduct <br /> Total Factor• <br /> Impervious Area 0.34 0.1 0.10 <br /> Trees,Shrubs Groundcovers 0.01 0.5 0.01 <br /> Lawn(Cool Season) 0.04 0.8 0.03 <br /> Herbaciuos Perrenials 0.61 0.5 0.31 <br /> Composite 1 0.44 <br /> a 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 /> Table L Plea)Farfas(PF)far estaWiahed lanOsope WWI,talgrasses, <br /> sad gaN Imps b Provide euepbhle perforeaare ie Calitwalar. <br /> Pont Type plaet Parlor <br /> Tree,SMubs,VVles,GourM[overs_ __ ..._..._ <br /> OS <br /> (woody WMe) <br /> RerbMtOUp PCrHKliab OS <br /> Desert Adapted Ptah 0.3 <br /> Aaaal Rower 6 Bedd'sq PlaWs O.fi <br /> G.-I TLefg.,Lawns,ro season([al <br /> Ob x.i <br /> lesax,K,blueaass,rye,bat) <br /> General Udgrass Lawns,warmseason <br /> (bamida,zoysia.St.Auaefllile,Wffloi 0.62] <br /> Rare nIA GODS,Dedduaes Ob x <br /> V me RUR Crops,Bya0reen Lo <br /> Hume Vegetable Crops I.Ua <br /> sLxed aaKRws .f1Wpad9 OAS.Q(,h Plmrx NPs <br /> toffilh l6MY PF <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 />