Laserfiche WebLink
Joe's Truck Plaza Facility j <br /> 15600 South Harlan Road �•.•� <br /> Lathrop California <br /> Estimation of Mass Flux Rate for TPHG and MTBE using Einarson and McKay Equations <br /> i <br /> Einerson and McKay (2001) equation for estimating mass flux, MD is given by <br /> Where, Ai <br /> MD = S C, 'A; ' Q, ' cr <br /> = Li Bi <br /> G= units conversion factor= 2.83'10 5 (gm-L/µg-ft3) <br /> Estimates For MTBE: i <br /> -rotas. Raab-.� kw0-S fi• M41�t <br /> Well ID Conc (C;) Avg. ht. of WC Width Area A; C;A; Q; G Mo; <br /> µg/l- L feet g' feet sq.ft feet/day gm/day <br /> MWO-3 0.5 10.51 240.0 2,522 1,261 0.0038 0.000028 0.000137 <br /> MW-3 203.0 11.82 209.0 2,470 501,576 0.0038 0.000028 0.054473 <br /> MW-4 3.1 11.84 123.0 1,456 4,543 0.0038 0.000028 0.000493 <br /> MW-5 0.5 11.46 68.0 779 390 0.0038 0.000028 0.000042 <br /> Assumed Hydraulic Conductivity = 3.28 ft/day (Fig. 5.14, Driscoll, 1995) ` 'K/d <br /> Average Groundwater Gradient = 0.0012 ft/ftPfA .� <br /> Specific Groundwater Discharge = hydraulic Conductivity . hydraulic gradient <br /> �o <br /> 0.0038 ft/day <br /> i <br /> Total MTBE Mass Flux (MD) from the core of plume = 0.0551 gm/day <br /> At groundwater extraction rate of 7.5 gpm, the influent MTBE concentration at well MW-7 <br /> 4 during the DPE test averaged 93 µg/L <br /> At 7.5 gpm, litres of groundwater extracted per day = 40,500 litres/day <br /> Mass of MTBE extracted in a day (lbs) = Concentraion (µg/L) `10-6 (gm/µg) . volume extracted per day <br /> Mass of MTBE extracted per day @-7.5 gpm (MW-7) = 3.77 gm/day <br /> (assumes concentrations do not fluctuate) 3170 <br /> i <br /> i <br /> i <br />� a <br /> I <br /> t <br />