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<br /> • TABLE 1
<br /> GROUNDWATER ELEVATION AND ANALYTICAL SUMMARY
<br /> FORMER APACHE PLASTICS FACILITY
<br /> 2050 EAST FREMONT STREET
<br /> STOCKT N CALIFORNIA
<br /> Depth to Well Groundwater Ethyl- Total
<br /> Date Water Elevation Elevation TPHG Benzene Toluene benzene Xylenes MTBE
<br /> WELL# Sampled (ft bgs) (ft msl) (ft msl) (pg/L) (µglL) OWL) 01g/L) (pg/L) (pg/L)
<br /> VEW-1 S 05/20/02 4676 NM NM 19,000 1,600 1,400 530 2,500 <10*
<br /> 08/27/02 5009 NM 29,000 3,400 820 680 3,800 <25*
<br /> 12/05/02 NM NA NA NA NA NA NA
<br /> 02/05/03 4921 NM 17,000 2,000 590 410 2,130 <10*
<br /> 05/28/03 4779 NM 18,000 2,500 810 440 2,470 <10*
<br /> 08/11/03 5053 NM 27,000 3,100 920 920 4,800 <10*
<br /> 11/10/03 5127 NM 18,000 2,500 5,300 270 1,510 <20*
<br /> 02/23/04 4927 NM 130,000 1,200 22,000 4,300 32,000 <100*
<br /> 02/23/04 -- 150,000[1]* 1,200[1]* 21,000[1]* 4,200[1]* 31,000[1]* <100[1]*
<br /> 05/24/04 4915 NM 120,000 1,100 23,000 4,200 36,000 <100*
<br /> 08/23/04 5276 NM 21,000 2,600 26 900 3,210 <15*
<br /> 11/19/04 4511 NM 1,500 46 60 63 285 <10*
<br /> VEW-2*** S 05/18/01 43 13 1803 -25 10 7,300 660 160 110 660 <4 0*
<br /> 11/05/01 4839 -3036 10,000 1,300 90 160 830 <5 0*
<br /> 02/14/02 4657 -2854 180,000 1,300 28,000 4,900 39,000 <100*
<br /> 05/20/02 4656 -2853 120,000 1,500 15,000 3,900 24,500 <100*
<br /> 08/27/02 4976 -3173 140,000 1,500 21,000 4,100 28,300 <100*
<br /> 12/05/02 NM NM NA NA NA NA NA NA
<br /> 02/05/03 4901 -3098 130,000 1,100 17,000 4,200 24,700 <100*
<br /> 05/28/03 4776 -2973 120,000 1,100 19,000 4,000 26,600 <100*
<br /> 08/11/03 5038 -3235 120,000 1,800 24,000 4,800 32,000 <100*
<br /> 11/10/03 NM NM Well Inaccessible
<br /> 02/23/04 4921 -31 18 130,000 1,300 22,000 4,200 34,000 <100*
<br /> 05/24/04 4910 -3107 120,000 1,100 24,000 4,400 35,000 <100*
<br /> 08/23/04 5225 -3422 Well Dry
<br /> 11/19/04 5274 -3471 Well Dry
<br /> Apache_Quarterly_Data Page I of 8 5TKA RJ5
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