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1 <br /> Table 1 <br /> MTBE Plume Travel Time <br /> Rainwater Car Wash <br /> 420 West Yosemite Avenue,Manteca,California 95336 <br /> Site Address:420 West Yosemite Avenue,Manteca,California 95336 Range Soil Type Velocity Range <br /> Source concentration Co 200000 ug/L Gravel up to 3 fUd <br /> X axis dispersivity ux 1.9 R 0.1-10 Coarse Sand up to 1.5 JIM <br /> Taxis dispersivity uy 0.627 R a,=(0.33-0.65)x, Clean Sand up to 10 tUd <br /> Z axis dispersivity 4 0.1064 If Fine Sand up to 0.5 Wit <br /> Groundwater eloci u 0.098 fit/day 0.01-3.0 Silty Sand up to O.I Rld <br /> Source dimension Y Y 35 R Sandy Silt 11.01-0.05 fi/d <br /> Source dimension Z Z 20 it Silty 0 0 @/d <br /> First order attenuation rate x 0.0005 I/day 0.01-0.0005 Soil Type Date Release Discovered <br /> Distance from source to Well MW11A X, 634 ft Silty Saud 12/1/1998 <br /> Date of tat Monit Event <br /> Distance to Municipal Well X, 150 it 7/11/2000 <br /> SUMMARY SOLUTIONS&STATISTICS days years <br /> Time when plume first reached 0.1 a in Municipal Well 13500 37.0 Silty Sand(<50 fbg) GW at—15-17 fbg <br /> Time when plume first reached 1 u in Municipal Well 14000 38.4 Clay and Sand(50-65 fbg) <br /> Time when plume first reached 5 u in Municipal Well 14000 38.4 Poorly graded Sand(65-117 fbg) <br /> Time when plume reached its peak in Municipal Well 22500 61.6 Silly Sand(117-133 fbg) <br /> Time remaining for pplume to reach 5 u in Municipal Well <br /> Maximum concentration in Municipal Well 13.58 u <br /> Well Name MWIIA Distance C Time(da s) C/Co <br /> Source Well MW6 200000 2160 1 <br /> Downgradient MWI IA at T, 09/04/08 168 1 5725 0.000005 <br /> T, 12/05/08 168 1 5817 0.000005 <br /> T, 08/31/09 168 8.7 6086 4.351-05 <br /> T, 02/04/10 168 940 6243 0.0047 <br /> T, 01/18/12 168 2040 6956 0.0102 <br /> T" 0 <br /> T, 0 <br /> T, 0 <br /> Ts 0 <br /> Tio 0 <br /> Date oflst record 4/30/2001 Present Date 6/132013 Max 11354 <br /> Date of last record 5/152013 last record and 4398 days <br /> Aral Adlyd Rainwater Car Wash <br /> &Assoelales.Ine. 2013,MTBE Plume Tiavel Model <br />