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RBCA Too[ Kit for Chemical Releases,Version 1 3a <br /> RBCA SITE ASSESSMENT <br /> TIER Z TRANSIENT DOMENICO ANALYSIS <br /> Site Name Tuff Boy Completed By GPS Joh ID 335 <br /> Site Location Manteca, CA Date Completed 25-Se -02 4 of 5 <br /> Constiuent Xylene(mixed isomers) <br /> Source Medium Affected Groundwater <br /> Biodegredation 1st Order <br /> Concentration vs Distance from Source Time(yr) 1 0 Off-sitel off-site2 <br /> (for given time) E73E <br /> ial None <br /> Distance(cm) 0 580 1160 1740 2320 2900 3480 4060 4640 5220 5800 NA <br /> t=1 O yr � 1 2E-2 1 6E-3 5 5E-5 1 4E-6 3 OE-8 6 6E-10 i 5E-11 3 4E-13 7 8E-15 1 9E-16 4 6E-18 8 NA <br /> Steady-state 0 E 1 2E-2 4 BE-3 2 1 E-3 8 7E-4 3 5E-4 1 5E-4 6 5E-5 3 OE-5 1 5E-5 7 4E-6 3 9E-6 4 NA <br /> POE Concentration Limit(mg/L) 1 NA <br /> 1 OE-2 <br /> a 1 OE-4 <br /> • Steady-state <br /> E 1OE6 t=10yr <br /> c 1 OE-8 - Off-sitel Cone Limit <br /> U <br /> 1 0E-10 -i` - Off-site2 Conc Limit <br /> 1 OE-12 <br /> 0 1000 2000 Dis1:8069 4000 5000 <br /> Concentration vs Time Distance(cm) z45o <br /> (for given distance from source) <br /> Time(yr)l 0 3 6 9 12 15 18 21 24 27 30 Time to Reach <br /> x=2450 cm LOE+0 8 6E-5 2 7E-4 2 9E-4 2 9E-4 2 9E-4 2 9E-4 2 9E-4 2 9E-4 2 9E-4 2 9E-4 Conc Limit(yr) <br /> Off sdel(2450 cm) U E 8 6E-5 2 7E-4 2 9E-4 2 9E-4 2 9E-4 2 9E-4 2 9E-4 2 9E-4 2 9E-4 2 9E-4 Off-sitesOff-sde2(0 cm) NA NA NA NA NA NA NA NA NA NA Off-sde2 NA <br /> 3 OE-4 <br /> 2 5E4 —t}—x=2450 cm <br /> -6,2 OE-4 0 Off-sites (2450 cm) <br /> `"1 5E-4 0 Off-sde2(0 cm) <br /> c� <br /> o 1 OE-4 Ai - Off-sitel Conc Limit <br /> U <br /> 5 OE-5 - - . - Off-site2 Conc Limit <br /> 0 OE+0 L�o i 0 070 0 0 0 0 i 0 <br /> 0 5 10 Tim"yr) 20 25 30 <br />