Laserfiche WebLink
Applied Environmental Technologies, Inc. TACO R26 EQUATION <br /> site:Huck's Decatur Groundwater Modeling <br /> MW-18 <br /> _ -- X -- 4�•aX -- 5,�� - --S� - INPUTS <br /> L(x� = C��,��«� •eX �T J• 1- 1+ •el� - •eP� Z - Contaminant Concentration <br /> 2a U 4• ay •X 2� a •X (mglLl 0.170 0.0009 <br /> - Benzene <br /> Eth Ibenzene 0.480 0.003 <br /> C(x>= mg/1 Concentration at distance X from source Toluene 0.500 0.011 <br /> C (source> mg/I Concentration at source(benzene) <br /> X cm 5,029 Distance along x-axis of GW plume,direction of GW flow Xylene(total) 4.700 0.0019 <br /> OCx cm 502.92 Longitudina!Dispersitivity=X *.10(Equation R16) <br /> ay �m 167.64 Transverse Dispersitivity=CCx/3(Equation R17) ' <br /> aZ �m 25.146 Vertical Dispersitivity=CCx/20(Equation R18) Source of Analytical Data: Jul-07 � <br /> �, /day First Order Degradation Constant(App C,Table E)for each contaminant I <br /> (� cm/day 1.864372 Specific discharge=(K'i)/e� (Equation R19) Distance= 165 ft <br /> K cmlday 30.43872 Hydraulic conductivity(field measurement) K= 3.52E•04 cm/sec <br /> � cm/cm 0.0196 Hydraulic gradient(field measurement) _ (97.29-96.66)/112.5 i= 0.020 ff/ft I <br /> ei 0.32 Toial Porosity(App C,Table D) Sw= 90 k I <br /> Sw cm 2,743 source width along horizontal axis of plume at source Sd= 10 fl <br /> Sd cm 200 source width along vertical axis of plume at source(App C,Table D) 0�= 0.320 <br /> At a distance of 165 ft Note: �values come from Appendix C,Table E. <br /> C(:�= 0.005 mg/L = 4.94 ug/I=ppb Benzene I, <br /> O.OQ1 mg/L = 0.51 ug/I=ppb Ethylbenzene I <br /> O.OUO mg/L = 0.00 ug/I=ppb Toluene I <br /> 0.025 mg/L = 24.66 ug/l=ppb Xylene(iotal) �� <br /> Appendix C,Tabie G 35 IAC 742 I <br /> Xl2ax 1+(4Rax/U) sqr(col B) 1-col E exp(A*F) �1 Sw � Sd <br /> 5 1.971111124 1.40396265 -0.403963 0.13268024 0.7468944 0.2812005 <br /> 5 4.23703708 2.058406442 -1.058406 0.005031525 <br /> 5 12.86913596 3.587357796 -2.587358 2.40782E-06 erf(p) erf(p) 'I <br /> 5 3.050123484 1 J46460273 -0.74646 0.0239376�3 0.7091541 0.3091321 I <br /> C�x>= C�5o�r�e� 'exp[(Xl2a.x)'(1-sqr{1+(4l�ax/U)})]'er1((�Sw)"erf(p Sd) <br /> 8/27!20G/ <br />