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TABLE 1 GROUNDWATER MONITORING AND CHEMICAL RESULTS: <br /> FORMER REGAL STATION 603, 6425 PACIFIC AVENEUE, STOCKTON, CALIFORNIA <br /> WELL # CASING DATE DEPTH TO PROD. VACUUM CORRECTED TOTAL PET. BENZENE TOLUENE ETHYL XYLENES Methyl tert-Butyl DISSOLVED <br /> ELEVATION TOP OF THICK. AT WELL GW ELEV. HYDROCARB BENZENE Ether OXYGEN <br /> FEET AMSL WATER HEAD FT. AMSL GAS-RANGE 8020 8260 <br /> IN FEET IN FEET IN FEET PPM PPB PPB PPB PPB PPB PPB PPM <br /> 12.38 01/22/96 45.35 0 0.00 -32.97 <br /> 12.38 03/06/96 44.9 0 0.00 -32.52 9.5 250 460 560 2100 <br /> 12.38 04/09/96 42.72 0 0.00 40.34 <br /> i <br /> 12.38 05/28/96 41.75 0 0.00 -29.37 <br /> 12.38 06/20/96 41.6 0 0.00 -29.22 4.2 93 9.8 310 610 80 2.2 <br /> j 12.38 07/30/96 42.25 0 0.00 -29.87 <br /> 12.38 09/19/96 43 0 0.00 -30.62 4 76 1 8.3 330 720 130 <br /> 12.38 12/10/96 41.34 0 0.00 -28.96 8.2 180 49 920 2500 50 <br /> 12.38 03/10/97 38.74 0 0.00 -26.36 8.6 110 70 510 1700 <100 ND X100 <br /> 12.38 06/11/97 38.68 0 0.00 -26.30 5.9 65 15 360 960 70* <br /> 12.38 09/23/97 39.63 0 0.00 -27.25 6.1 32 10 430 890 30 <br /> 12/00/97 Bparging and vapor extraction system operating 1.8 <br /> 12.38 12/16/97 38.13 0 0.00 -25.75 '=I40 <5 0 <br /> r'11I� thBe:`�e I; 1�ez' ��779f�jI]�Q� }��jN➢j���(yy(L5(jj(,y��yfi((��'.//yyL tfi"s ` na4ZZf'r��'�j�a �mp 1 y� <br /> nti,�ihf� 1 N hf.�h S� EHYM,ff VtMX.1MNw,v.eM�tMMYHO]MMw'['�4kH. ti .e, ep N��• <br /> W <br />