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Nitrate l:oadiug 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 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 Develooment Conditions: <br />Land Condition Fractional Plant Product <br />Total Factor" <br />Impervious Area <br />0.8 <br />0.1 <br />0.08 <br />Trees, Shrubs Groundcovers <br />0.2 <br />0.5 <br />0.10 <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 />ixf <br />0.18 <br />area assume nominal 0.05 to 0.10 to account for <br />evotranspiration of rainfall retained on paved surfaces, gutters, <br />etc. <br />T.W... Ptaae IW—(PF) ror eztabas"ed W.d,c pl" tuAyrasses, <br />a"d wetle" eepPs m p Wde u epmeie cerr"r",""ee m <br />Plane Type <br />Plant fa<1ar <br />SMA" yet." Grawdepvert <br />%..d, Wm ! <br />;. s <br />nNOa0a"YrP wuis <br />�.. <br />Dnv; A_-Wt_W*ha <br />,._ <br />i t^.si. cowersl aetld:np-(: <br />o.0 <br />Pena I,e'Qasa'.awo"c"'... pn,tat' <br />ue"s-i P�s,an:u, wamF"eaaan <br />(pa�n,pa -da, st. a W=e. 04rao; <br />].d' � <br />wire"Jt C�ap".Cm3:pus <br />0.6 <br />twee Fve:rpps. &.We. <br />1.0 <br />Manor """,4Cape <br />ixf <br />"Getl Y.yri+0-° <br />F�Ouph"fk➢a W alto pl. 9r <br />r"grd S:TdM rip?IC PP <br />3 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 />e From UC reference; note plant factors are annual average values; additional refinement may be needed for seasonal crops. <br />