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� <br /> Applied Environmental Technologies, Inc. TACO R26 EQUATION <br /> site; Huck's oecatur Groundwater Modeling <br /> MW-9 <br /> X 4�,•a,. .S',,, �S� I N P UTS <br /> ,� � (2a �• 1- 1+ U �e% •eY' Contaminant Concentration <br /> �. x = C�.,�,,,r•�> ��X x 4� �y�X 2� aZ ,X �my/�) �, <br /> Benzene 0.450 0.0009 <br /> Eth Ibenzene 0.360 0,003 <br /> C(x>= mg/I Concentration at distance X from source Toluene 0,050 0.011 <br /> C �source) mgll Concentration at source(benzene) <br /> ,� crri 6,706 Distance along x-axis of GW plume,direction of GW flow Xylene(total) 6.400 0.0019 <br /> oGx cm 670.56 Longitudinal Dispersitivity=X*.10(Equation R16) <br /> a,y �m 223.52 Transverse Dispersitivity=ax/3(Equation R17) <br /> p�,Z �m 33.528 Verfical Dispersitivity=oCx/20(Equation R18) Source of Analytical Data: Jul-07 <br /> �,, /day First Order Degradation Constant(App C,Table E)for each contaminant <br /> (J cm/day 1.864372 Specifc discharge=(K"i)/ei (Equafion R19) Distance= 220 ft <br /> K cm/day 30.43872 Hydraulic conductivity(field measurement) K= 3,52E-04 cm/sec <br /> � cmlcm 0.0196 Hydraulic gradient(field measurement) _ (97.29-96.66)/112.5 i= 0.020 ft/ft <br /> ei 0.32 Total Porosity(App C,Table D) Sw= 90 ft <br /> SW �m 2,743 source width along horizontal axis o/plume at source Sd- �� � <br /> Se cm 200 source width along vertical axis of pfume at source(App C,Table D) 9c= 0.320 <br /> At a distance of 220 ft Note: �.values come from Appendix C,Table E. <br /> C�x)= 0.005 mg/L = 4.60 ug/I=ppb Benzene <br /> 0.000 mglL = 0.07 ug/I=ppb Ethylbenzene <br /> 0.000 mglL = 0.00 ugll=ppb Toluene <br /> 0.008 mg/L = 8.11 ugil=ppb Xylene(total) <br /> Appendix C,Table G 35 IAC 742 <br /> X/2ax 1+(4lax/U) sqr(col B) 1-col E exp(A'F) �3 Sw p Sd <br /> 5 2.294814832 1.514864625 -0.514865 0.076205387 0.5601708 0.2109004 <br /> 5 5.31604944 2,305655967 -1.305656 0.001461518 <br /> 5 16.82551461 4.10189159 -3.101892 1.83793E-07 erf(p) erf((�) <br /> 5 3.733497979 1.932226172 -0.932226 0.009455763 0.5717566 0.2344939 <br /> C�x�= C(source� "exp((X/2ax)'(1-sqr{1+(4)�ax/U)})�`erf(()Sw)`erf(p Sd) <br /> E3/21/1007 <br />