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Huck's DecaWr DOMENICO MODEL(STEADY STATE-IEPA TACO) <br /> 8-1D(7.5 fl) <br /> Calculation Resulls uslny IACO Equalions S77 and R26 for Conlaminanl Concentrations in Groundvialer Ihal have leached Iwrn soil <br /> Gene�al Parometers lor R26 1 ults <br /> VeA.source thlckness,3d: 10 tl. 6.5f ft <br /> Horiz.Source Wldth,9w(normal to RowJ: 90 fl. general gravel sand sill clay <br /> SaluratedPowsity O;iL 0.43 0.26 0.32 0.40 0.36 <br /> Hydr.GradienC U.�ii`i6 <br /> SaL Hydr.Cond.: :'S2L=-04 cMs <br /> Spec.Uischg.: 2.16E-05 cm/s <br /> Soil Bulk Dens. t 5 y/cm3 1.5 2.0 1.8 1.6 1] <br /> GW Datcy VeL 2.18F+02 cm/yr <3 fl bgs: �3 R bgs: <br /> Fradlon organic carboq foc: 0 0020 0.006 0.002 <br /> leaching Factor(Soll to Oroundwater) defaults; <br /> TACO Equalion 517 <3 fi bgs >3 ft bgs giavel sand silt r,lay <br /> We�led porosity 0.30 0.15 0.30 02D 0.18 0.16 O.V <br /> Air porosity 0.13 0.28 0.13 0.05 0.74 0 16 0.17 <br /> GW Mixing 7_one Thickness,ft G.SG 6.56 6.56 <br /> In6ltratlon Rate,cmiyr 30.00 30 30,000 <br /> Source Length parallel to 220 leet <br /> Atsource pt. 6enzene toluene ethylbenz xylenes d MTBE � � <br /> Soll concentratlon�mg/kg) 0 3G 0�G5 `�.b 1�' <br /> Dilullon laclor 122 20 (TACO defaull) <br /> Dil Faclor lo use 20 <br /> Equilib lolal conc(acb� 3.85E-01 7.33F-01 124H00 9.50E-01 2.34E01 <br /> f eaching Factor 7.69 14.66 24.89 58.�J9 469 <br /> Leached OW Conc.{mglL) 0.047 0.004 0.181 0.790 0.000 <br /> Dlst.X,boringlvrell to Compllance Pt.: I`s0 ft. <br /> Class I/Class II Oroundwater. Class I <br /> Calculatlons based on equatfon R16lR28 In 35 IAC 742 A endlx C Table C. <br /> Chemical: Benzene Toluene Eth Ibenz X lenes MTBE <br /> Koc(mL/g) 58.9 182 363 260 12 <br /> Decay ConsL(/day)' 9AOE-O4 1.10E-02 3.00603 1.90E03 O.00E+00 <br /> Dim'less Henrys l.aw Consl 228E-Ot 2]2E-Ot 323E-01 2.50E-01 2.41 E�02 <br /> Class I GW CUO(mglL) 0.005 1.000 0]00 M10.000 0.070 <br /> Class II GW CUO(mglL) 0.025 2.5 1 10 0.07 <br /> A �o riate CUO m L 0.005 1.000 0]00 50.000 0.070 <br /> Estlmated Concentratlon at x feet f�om boringhvell: <br /> Leached GW Conc(Irom above) 0.047 0.004 0.181 0.790 0.000 <br /> exponenliallactor 0.193 0.000 0.012 0.046 1.000 <br /> Sw/�4 sqA(alla y"X)) �.9A8 <br /> eA(Sw/(4 sqA(alla Y'X))) 0.62D <br /> Sd/(2 sqit(alfa z'X)) �.544 <br /> ert Sz 0.558 <br /> Fract of Ini�Conc.(GCO)�d X 88536E-02 7.0092E-06 5.5017E�03 2.0914E�D2 4.5774E-01 <br /> Estimaled Conc.at PI X Q.00A OA00 0.001 0.017 0.000 <br /> RATIO:Conc�IDPt x/CorrActObJ 0.829 0.000 0.001 0.002 0.000 <br /> EHects of S4mllar•Actfng Chemlcals <br /> Hazard Index(HI) <br /> Total BTEX 0,892 <br /> Taryet Organ <br /> Kidney 0.001 <br /> Liver 0.001 <br /> Nervous Syslem 0.002 <br /> Circulatory Sysl. 0�829 - <br /> C3�1 Tracl 0,000 <br /> IdOTE:The Nazard 6idices(His)for Tofal BTEX and eath of Ihese ory�ns�nusl nol exceed 1 <br />