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• 0 r <br /> RBCA Tool Kit for Chemical Releases,Version 1 3a11 <br /> - <br /> RBCA SITE ASSESSMENT <br /> TIER 2 TRANSIENT DOMENICO ANALY5IS <br /> Site Name TO Bay Completed By GPS Job lD 335 <br /> Site Location Manteca, CA Date Completed 25-Sep-02 5 of 5 <br /> Constiuent Methyl t-Butyl ether <br /> Source Medium Affected Groundwater <br /> Biodegredation None <br /> v <br /> Concentration vs Distance from Source Time(yr) 1 0 off-sitel Off-stte2 <br /> Residential Hone <br /> (for given time) <br /> Distance(cm) 0 580 1160 1740 2320 2900 348D 4060 4640 5220 5800 5800 NA <br /> t=1 0 yr L 8 6E-3 6 9E-3 20E-3 35E-4 51E-5 71E-6 98E-7 14E-7 19E-8 2 8E-9 4 11==10 4 IE-10 NA <br /> Steady-state v E 8 6E-3 8 6E-3 8 2E-3 6 BE-3 5 2E-3 3 9E-3 3 OE-3 2 3E-3 1 9E 3 1 5E-3 1 3E-3 1 3E-3 NA <br /> POE Concentration Limit(mg1L) 3 7E-1 NA <br /> 1 OE-2 <br /> 1 OE-3 <br /> 1 OE-4 ---0 Steady-state <br /> 1 OE-5 f t=10 yr <br /> 1 OE-6 <br /> 0 1 OE-7 iii Off-sites Conc Limit <br /> v 1 0E-8 - - -1–- Off-stte2 Conc Limit <br /> 1 OE-9 <br /> 1 OE-10 <br /> 0 1000 2000 DIstM009 4000 5000 <br /> I <br /> Concentration vs Time Distance(cm) 2soD <br /> (for given distance from source) <br /> Time(yr) 0 3 6 9 12 15 18 21 24 27 30 Time to Reach <br /> x=2900 cm o ? 0 OE+0 1 5E-3 3 5E 3 3 9E-3 3 9E-3 3 9E-3 3 9E-3 3 9E-3 3 9E-3 3 9E-3 3 9E-3 Conc Limit(yr) <br /> Ositel(5800 cm) �o <br /> lt 0 OE+0 3 8E-5 4 9E-4 9 2E-4 1 1 E-3 1 2E-3 1 2E-3 1 2E-3 1 3E-3 1 3E-3 1 3E-3 Off-sitel NA <br /> Off-site2(0 cm) NA NA NA NA NA NA NA NA NA NA NA Off-site2 NA <br /> 4 OE-3 <br /> 3 5E-3 —13—x=2900 cm <br /> 3 OE-3 <br /> E 2 5E-3 <br /> —O—Off-sitel (5800 cm) <br /> 2 OE-3 0 Off-site2(0 cm) <br /> c 1 5E-3 - - iK - Off-sitel Conc Limit <br /> 1 OE-3 - - f - Off-site2 Canc Limit <br /> 50E-4 <br /> 0 OE+0 <br /> 0 5 10 Timtoyr) 20 26 30 <br />