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TABLE 1-SUMMARY OF RESULTS OF GROUNDWATER MONITORING WELL DATE OF CASING DEPTH TO GROUNDWATER TPH-G TPH-D TPH B T E X MTBE HVOC DO LAB ID SAMPLING/ ELEVATION (a) WATER ELEVATION (b) (ug/L) (ug/L) OWL) WWI-) (ug/L) Mwl-) NO-) WWI-) (ug/L) (ppm) MONITORING (Feet) (Feet) (Feet) MW-5 04/25194 4.38 17.40 -13.02 170 -- - 34 1.0 ND<0.5 8.1 11 (0) - 3.9 PACE MW-5 OT/28194 4.38 17.88 -13.48 1000 - - 440 19 10 35 ND<5.0 (0) - 3.9 PACE QC-1 (d) 07/28/94 - - - 1200 - - 470 23 11 46 - - - PACE MW-5 12/09194 4.38 18.34 -13.96 930 - - 280 5.3 31 21 - - 4.6 PACE QC-1 (d) 12/09/94 - - - 1000 -- - 280 6 34 24 - - - PACE MW-5 03103/95 4.38 16.99 -12.61 1200 - --- 450 7.4 5.9 28 - - 5.4 All MW-5 04/12/95 4.38 15.71 -11.33 ND<50 - --- 9.0 ND<0.50 2.6 1.5 - -- 7.9 ATI MW-5 07/20/95 4.38 16.00 -11.62 4100 (e) - 220 ND<5.0 28 ND<10 - - 6.7 ATI MW-5 11/02195 4.38 16.90 -12.52 220 - - 44 1.4 8.7 7.4 ND<5.0 - 3.6 ATI mW-5 01/16/96 4.38 16.27 -11.89 160 - - 47 3.0 13 11 ND<5.0 - -- ATi MW-5 04!22/96 4.38 14.17 -9.79 100 - - 48 3 6 11 ND<10 - - SPL MW-5 07/12/96 4.38 14.46 -10.08 960 - - 320 3.8 78 42.2 31 - 2.9 SPL MW-5 11/14/98 4.38 15.36 -10.98 560 - - 18O ND<7.0 49 17 19 - 3.1 SPL MW-5 03111/97 4.38 12.42 -8.04 ND<50 - - 0.52 ND<1.0 ND<1,0 ND<1.0 ND<10 - 3.7 SPL MW-5 05/22197 4.38 13.04 -8.66 60 - --- ND<0.5 ND<1.0 ND<1.0 ND<1.0 ND<10 --- 4.9 SPL MW-5 08/06197 4.38 13.90 -9.52 --- - - - - - --- - - 6.2 - MW-5 09/22/97 4.38 13.99 -9.61 ND<50 - - ND<0.5 ND<1.0 ND<1.0 ND<1.0 ND<10 --- 7:0 SPL QC-1 (d) 09/22197 --- - - ND<50 --- -- ND<0.5 ND<1.0 ND<1.0 ND<1.0 ND<10 --- -- SPL MW-5 01/07/98 4.38 13.98 -9.60 ND<50 - - ND<0.5 ND<1.0 ND<1.0 ND<1.0 ND<10 - 6.3 SPL MW-5 07/01/98 4.38 10.36 -5.98 ND<50 - - ND<0.5 ND<7.0 ND<1.0 ND<1.0 11 - 5.8 SPL MW-5 09118198 4.38 11.90 -7.52 ND<50 --- - 3.2 ND<1.0 ND<1.0 ND<1.0 ND00 - 5.9 SPL MW- 01/19199 4.38 12.11 -7.73 70 --- - ND<1.0 ND<1.0 ND<1.0 ND<1.0 65 --- SPL MW-5 10114/99 4.38 13.05 -8.67 610 - - ND<1.0 ND<1.0 ND<1.0 ND0.0 640 - - SPL MW-5 01120/00 4.38 12.85 -8.47 ND<50 - -- ND<0,5 ND<0.5 ND<0.5 ND<0.5 5.0 - - PACE MW-5 05104100 4.38 10.25 -5.87 ND<50 - - ND<0.5 ND<0.5 ND<0.5 ND<0.5 17 - -- PACE MW-5 07/14100 4.38 11.85 7.47 140 - - ND<0.5 ND<0.5 ND<0.5 ND<0.5 360 - - PACE MW-5 10/27/00 4.66 (n) 12.75 -8.10 900 - - ND<0.5 ND<0.5 0.6 0.98 130 - --- PACE MW-5 01/19/01 4.66 12.59 -7.93 ND<50 - - ND<0.5 ND<0.5 ND<0.5 ND<0.5 51.5 - - PACE MW-5 04/23/01 4.66 11.60 -6.94 ND<50 - - ND<0.5 ND<0.5 ND<0.5 ND<1.5 24.7 - - PACE MW-5 07/27/01 4.66 12.80 -8.14 1400 - --- ND<2.5 ND<2.5 ND<2.5 ND<7.5 1810 - - PACE MW-5 11/01/01 4.66 13.89 -9.23 1800 --- - ND<0.5 ND<0.5 ND<0.5 ND0.5 2490 - - PACE MW-5 01/28/02 4.66 12.45 -7.79 ND<50 - - ND<0.5 ND<0.5 ND<0.5 ND<1.0 4.39 - - PACE MW-5 04123/02 4.66 12.29 -7.63 170 - - ND<0.5 ND<0.5 ND<0.5 ND<1.0 136 --- - PACE Blaine Tech Services,Inc.,Report 020423-JB-1,BP Oil 11193 at 3202 W.Hammer Lane,Stockton,Calitomia Page 5