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Applied Environmental Technologies, Inc. TACO R26 EQUATION <br /> site: Huck�s oecatur Groundwater Modeling <br /> MW-14 <br /> � - INPUTS <br /> C`1 � Contaminant Concentration <br /> ��\�'� - G(.soi�rce) �eX Y • �- �-�-4�•a-1 •E:1 f S�� -- •ej f `Sd <br /> 2a,.� U 4• a�, •X 2� aZ •X (mg/L) � <br /> - - Benzerte O.00B 0.0009 <br /> C(x)= mg/I Concenlration at distance X from source Ethylbenzene 0,240 0.003 <br /> C �source> mg/I Concentration al source(benzene) Toluene 0.005 0.011 <br /> X �m 914 Disfance along x-axis of GW plume,direction ot GW Aow Xylene(total) 0.660 0.009 9 <br /> cXx cm 91.44 Longitudinal Dispersitivity=X'.10(Equation R16) <br /> ay cm 30.48 Transverse Dispersitivity=ax/3(Equation R17) _-.. <br /> az cm 4.572 Vertical Dispersitivity=CCxl20(Equation R18) Source of Analytical Data: Jun•07 <br /> �, /day First Order Degradation Constant(App C,Table E)for each contaminant <br /> U cm/day 1.864372 Specific discharge=(K*i)/e� (Equation R19) Distance= 30 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) _ (97.23-96.66)/112,5 i= 0.020 fVft <br /> 8� 0.32 Total Porosily(App C,Table D) Sw= 90 ft <br /> $w cm 2,743 source width along horizontal axis of plume at source Sd= 10 ft <br /> Sd cm 200 source width along vertical axis of plume at source(App C,Table D) e�= 0.320 <br /> At a d istance of 30 ft Note: �values come from Appendix C,Table E. <br /> C(X)= 0.005 mg/L = 5.09 ug/I=ppb Benzene <br /> 0.063 mg/L = 63.41 ug/I=ppb Ethylbenzene <br /> O.00Q mg/L = 0.10 ug/I=ppb Toluene <br /> 0.272 mg/L = 271.75 ugll=ppb Xylene(total) <br /> Appendix C,Table G 35 IAC 742 <br /> Xl2ux 1+(4�ax/U) sqr(col B) 1-col E exp(A*F) � Sw R Sd <br /> 5 1.176565659 1.084696114 -0.084696 0.654763899 4.1�79192 1.5466028 <br /> 5 1.588552196 1.260377799 -0.260378 0.272017468 <br /> 5 3.15802472 1.777083206 -0.777083 0.020539282 erf(�i) erf((3) <br /> 5 1.372749724 1.171644026 -0.171644 0.423915926 1 0.971274 <br /> C(x�= C (sour�e) 'exp[(X/2ax)"(1-sqr{1+(4�ax/U)}))'erf((i Sw)'erf((3 Sd) <br /> 8/27I200"I <br />