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TAA •
<br /> SUMMARY OF GROUNDWATER MEASUREMENTS AND ANALYTICAL RESULTS
<br /> Farmer Property, Stockton, CA
<br /> Page 4 of 5
<br /> (measured in feet MSL) (Reported in ug11)
<br /> Well ID Date Wellheadl Depth tol GW TPHg Benzene Toluene Ethyl Xylenes MTBE ETBE TBA DIPE TAME Lead
<br /> Elevation Water Elevation I Benzene
<br /> MW6 03/26/98 1398 2280 -882 1,600 59 14 9 2 10 < <5 <100 <b <5 <4
<br /> MW6 06/26/98 1398 2227 -829 2,100 6 7 <1 2 29 <1 2 NA NA NA NA NA NA
<br /> MW6 09/24/98 1398 2247 -849 3,100 <10 <10 <10 <10 NA NA NA NA NA NA
<br /> MW6 12/17/98 1398 2267 -869 4,200 <50 <50 <50 <5 0 <25 NA NA NA NA NA
<br /> MW6 03/16/99 1398 2180 -782 5,920 381 <50 7 59 <5 0 NA NA NA NA NA NA
<br /> MW6 08/19/99 1398 2162 -764 4,400 4 5 2 0 66 80 NA NA NA NA NA NA
<br /> MW6 10/05/99 1398 2219 -821 4,100 93 42 96 24 NA NA NA NA NA NA
<br /> MW6 12/21/99 1398 2282 -884 2,700 <0 5 <0 5 <0 5 <0 5 NA NA NA NA NA NA
<br /> MW6 03/09/00 1398 21 34 -736 4,500 11 <0 5 49 <0 5 NA NA NA NA NA NA
<br /> MW6 06/08/00 1398 2080 -682 4,900 13 06 17 61 NA NA NA NA NA NA
<br /> MW6 09/14/00 1398 21 62 -764 3,700 94 15 18 1 0 NA NA NA NA NA NA
<br /> MW6 11/27/00 1398 2218 -820 3,000 44 41 17 4 7 NA NA NA NA NA NA
<br /> MW6 03/01/01 1398 2205 -807 2,700 54 10 14 1 0 26 NA NA NA NA NA
<br /> MW6 06/11/01 1398 2196 -798 4,700 12 10 50 10 3 8* <2 0 <20 <2 0 <2 0 NA
<br /> MW6 10/12/01 1398 2305 -907 1,200 26 13 12 31 7 4* <2 0 <20 <2 0 <2 0 NA
<br /> MW7 03/27/98 1515 2721 -1201 36,000 6,900 290 4,800 6,200 <5* <5 <100 <5 <5 <40
<br /> MW7 06/26/98 1515 2495 -980 38,000 7,400 100 3,300 2,700 NA NA NA NA NA NA
<br /> MW7 09/24/98 15 15 2502 -987 36,000 4,800 96 2,400 3,900 NA NA NA NA NA NA
<br /> MW7 12/17/98 1515 2460 -945 29,000 5,900 75 4,300 1,700 2,000 NA NA NA NA NA
<br /> MW7 03/16/99 1515 2371 -856 25,300 4,460 <50 3,680 4,230 NA NA NA NA NA NA
<br /> MW7 08/19/99 1515 2366 -851 29,000 7,300 <20 2,200 1,100 NA NA NA NA NA NA
<br /> MW7 10/05/99 15 15 2425 -910 32,000 3,900 12 2,900 3,600 NA NA NA NA NA NA
<br /> MW7 12/21/99 1515 24 82 -967 22,000 3,000 <50 2,200 640 NA NA NA NA NA NA
<br /> MW7 03/09/00 1515 2346 -831 19,000 2,500 77 1,600 440 NA NA NA NA NA NA
<br /> MW7 06/08/00 1515 2250 -735 20,000 2,400 39 920 230 NA NA NA NA NA NA
<br /> MW7 09/14/00 1515 2373 -858 23,000 3,100 <25 1,700 420 NA NA NA NA NA NA
<br /> MW7 11/27100 1515 24 29 -914 21,000 2,000 <25 1,000 230 NA NA NA NA NA NA
<br /> MW7 03/01/01 1515 2412 -897 12,000 1,300 <50 740 200 <50 NA NA NA NA NA
<br /> MW7 06/11/01 15 15 2401 -886 11,000 1,200 <50 470 110 <20* <20 <200 <20 <20 NA
<br /> MW7 10/12/01 15 15 25 63 -10 48 16,900 1,900 6 2 1,100 540 <2 0* <2 0 1 <200 1 <2 0 <2 0 NA
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