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I�luck's DecaWr DOMENICO MODEI(STEADY STATE-IEPA TACO) � <br /> Sample M7(10 11) <br /> Calculalion Resulfs using TACO Fqua(ions i17 and R2G lo�Conlaminanl ConcenlraUons in Groundwalei Ihal have leached fwm soil <br /> Oeneral Paremeters for R28 de u�is <br /> Vert.source thlckness,Sd: �10 tt. 6.�6 fl <br /> Horla.Source Wldlh,Sw(normal to Bow): 90 fi. general gravel sand slll r.lay <br /> Saluraled Porosily U:�2 OA� 0.25 0.32 0.40 0.36 <br /> Hydr.GradienC 001J6 <br /> Sal.Hydr.Cond.: 3�2E-OA r,m/s <br /> Spec.Dischg.: 2.16F-05 cm/s <br /> Soll Bulk Oens. �5 y/cm3 1.5 2.0 1.8 1.6 iJ <br /> GW Darcy Vel. 2.18E{02 cm/yr <3 ft bgs: >3 fl bgs: <br /> f�ractlon organic caibon,loc: U UOL�s 0.006 0.002 <br /> Leaching Factor(Soll to 6roundwater) defaults: <br /> TAC6 Equalion St 1 �3 ft bgs >9 ft bgs gravel sand silt clay <br /> Wetled porosity 0.30 0.15 0.30 020 0.18 0.16 0.17 <br /> Air porosity 0.13 0.28 0.13 0.05 0.54 0.16 0.17 <br /> GW Mizing Zone Thickness,fl G.iiG 6.56 G5G <br /> InfAlralion Rale,cm/yr 30.00 30 30.OD0 <br /> Source Length parallel to <br /> flow,W 220 feei <br /> At source pt. benzene loluene ethylbenz xylenes �� MTBE � � <br /> Soll concentratlon(mglkg) 2.7 'i�3 t:� 76 <br /> Dilulion faclor 1.22 20 (TACO delaull) <br /> Dil Factor lo use 20 <br /> Equilib tolal conc taclor 3.85E�01 7.33F-01 1.24Er00 9.50E-01 2.34E-05 <br /> LeachingFactor 7.69 14.66 24.89 iB.99 4.G9 <br /> Leached 6W Conc.(mg/L) 0.351 0.361 0.603 1.316 0.000 <br /> Dlst.X,boringlwell to Complfance Pl.: 231 fl. <br /> Clacs VClass II Oroundwater. Class I <br /> Calcutetlons 6ased on equatlon R16/R28 in 36 IAC 742 A endix C 7able C, <br /> Chemical: Benzene Toluene Elh Ibenx X lenes MTBE <br /> Koc(ml/g) 58.9 182 363 260 12 <br /> . Decay ConsL Qday)' 9.00E-04 1.10E-02 3.00E�03 1.90E�03 D.DOE+00 <br /> Dim'less Henrys Law Consl. 2.28601 2J2E-01 3.23601 2.50E�D1 2.41602 <br /> Class I GW CUO(mglL) 0.005 1.000 OJ00 10.000 0.070 <br /> Class II GW CUO(mglL) 0.025 25 1 10 OA7 <br /> Appropriate CUO(mg/l) 0.005 1.000 OJ00 10.000 0.070 � <br /> Estlmeted Concentntlon at x fest irom borin fwell: <br /> f_eached GW Conc(from atx�ve) 0.351 0.361 0.603 1.31G 0.000 <br /> exponentiallacfor OA69 0.000 0.001 0.008 1.000 <br /> Sw/(4 sqrt(alla y"X)) 0.533 <br /> eA(Sw/(4 syrl(alfa y'X))) 0.549 <br /> Sd/(2 sqrt(alfa z'X)) 0.306 <br /> erf Sz 0.335 <br /> Frar,t of INt Conc.(ClCO)@ X 12611 E-02 2.0996E-OB 2.1332E�04 1.460�E-03 1.84U1 E-01 <br /> Fstimaled Conc.al F't X 0.00�1 0.000 0.000 0.002 0.000 <br /> RATIO;Conc�Pt x/CorrAetObl U.885 0.000 0.000 0.000 OAW <br /> Elfeeh ot Slmilar-Acting Chemlcals <br /> Hazard Index(H1) <br /> ToWI BTEX 0.886 <br /> Target Organ <br /> Kidney 0.000 <br /> ��ye� 0.000 <br /> Neivous Syslem 6.000 <br /> Circufalory SysL 0.886 <br /> G-I fracl 0.000 <br /> NOTE:The Hazard Indlces(Hls)for To(al BTEX and each o(Ihese orgnns musl nol exceed i <br />