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f� <br /> h . <br /> Table 2 <br /> %i SUMMARY OF 2002 FEASIBILITY TEST AIR AND WATER SAMPLE ANALYTICAL DATA <br /> Barnes Tracking Facility <br /> 1817 South Fresno Avenue <br /> j Stockton, California <br /> Clearwater Project # ZB178 <br /> Air <br /> Sample Collection TPH-g B T E X MTBE <br /> No. Date (mglat ) (mg/m3) (mg/m3) (mg/ra ) (mg/as ) (mg/m3) <br /> DPW4 Q2011w.c. 3/13/2002 35 0.75 <020 <0.20 0.33 <020 <br /> DPW-1 Q 30" w.c. 3/132002 66 0.94 0.28 <0.20 0.68 <0.20 <br /> DPW-1 ® 40" w.c. 3/1312002 52 0.41 <0.20 <0.20 0.46 <0.20 <br /> DPW-1 Q 50" w.c. 3/132002 77 0.70 <0.20 <0.20 0.58 <0.20 <br /> INF-SP (DPW-1 3/14/2002 1000 3.7 IA 0.92 3.9 <0.20 <br /> during sparging) <br /> Witter <br /> Sample Collection TPH-g B T E X MTBE <br /> No. Date (pg/L) (mg/ra ) (mg/m) (mg/m3) (mg/m3) (mg/m) <br /> DPW-1 3/12/2002 422000 69300 750 35100 3;400 <25 <br /> DPW-1 3/14/2002 48,000 5,400 13900 1,700 57800 <20 <br /> TPH-g concentration of samples collected from DPW-1 <br /> .. during various induced vacuums and during sparging <br /> 1000 <br /> x c 100 <br /> F v <br /> 10 <br /> 20 30 40 50 AS <br /> Air samples collected at various induced vacuums at DPW-I <br /> (inches w.c.) and during air sparging (AS) <br /> Notes : <br /> TPH-g Total petroleum hydrocarbons as gasoline by EPA Method 8260B <br /> BTEX Benzene, toluene, ethylbenzene and total xylenes by EPA Method 8260B <br /> MTBE Methyl tert-butyl ether by EPA Method 8260E <br /> mg/m3 milligrams per cubic meter <br /> pg/L micrograms per liter <br /> w.c water column <br /> AS air sparging <br /> Page 1 of 1 <br />