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Mr. Jeff Brown - 3 - 2 May 2003 r <br /> Safeway, Inc. l <br /> h <br /> Comparison of Maximum Concentration Data: Closure of Former-Regal #603-August 2001 and GeoTrans Assessment-January 2003 <br /> Constituent +! Soil Concentration in m Groundwater Concentration in <br /> Closure Documentation GeoTrans Assessment Closure Documentation GeoTrans Assessment* <br /> February 2000 January 2003 Dec'e'mber 2000 January 2003 <br /> gasoline TPH 1200 <1 17,000 42,000 <br /> diesel TPHd NA <1 NA 59,000 <br /> motor oil NA 3.9 + NA <1,000 <br /> benzene 1.6 <5 16 <25 <br /> eth lbenzene 20 9.1 260 340 <br /> toluene 11 25 ; 62 <25 <br /> xylenes 110 73 111,400 14,000 <br /> 1,2,4-trimeth lbenzene NA 32 NA 2,900 <br /> 1,3,5-trimenth lbenzene NA 9.9 NA 770 <br /> n-but lbenzene NA <5 NA 35 <br /> isopropylbenzene NA <5 NA 75 <br /> n-propylbenzene NA <5 j NA 130 <br /> lead 12 NA i NA NA <br /> methyl tert-but 1 ether 0.25 <5 1.8 <5 <br /> '-grab groundwater sample <br /> NA-not analyzed <br /> 4� <br /> Y <br /> 1 - <br />