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TABLE 1-SUMMARY OF RESULTS OF GROUNDWATER SAMPLING <br /> BP OIL COMPANY SERVICE STATION NO.11193 <br /> 3202 WEST HAMMER LANE,STOCKTON,CALIFORNIA <br /> ALISTO PROJECT NO.10-136 <br /> WELL DATE OF CASING DEPTH TO GROUNDWATER TPH-G TPH-D TPH 8 T E x HVOCS LAB <br /> ID SAMPLING/ ELEVATION (a) WATER ELEVATION (b) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (PPb) <br /> MONITORING (Feet) (Feet) (Feet) <br /> MW-1 12)21192 3.66 20.40 -16.74 2200 56 15 ND<0.5 8.9 --- - <br /> MW-1 04/04193 3.66 15.51 -11.85 160 - 92 ND<0.5 ND<0.5 0.6 -- PACE <br /> MW-1 04/26/93 3,66 17.25 -13.59 --- - - --" - --- - " <br /> MW-1 10!05193 3.66 18.00 -14.34 6000 --- - 450 41 17 18 --- PACE <br /> MW-2 12121/92 4.51 21.26 -16,75 1500 --- - 120 9.6 1.0 24 - <br /> MW-2 04!04193 4.51 18.45 -13.94 2600 - -- 460 13 77 81 - PACE <br /> MW-2 04126/93 4.51 18.11 -13.60 - --- - "-" - --- -- <br /> MW-2 10/05193 4.51 18.85 -14.34 1500 --- - 3200 120 540 710 PACE <br /> MW-3 12121192 4.86 21.52 -16.66 170 - --- 2.8 ND<0.5 ND<0.5 ND<0.5 - <br /> MW-3 04/04/93 4.86 18.59 -13.73 270 - --- 23 ND<0.5 ND<0.5 ND<0.5 - PACE <br /> MW-3 04/26193 4.86 18.34 -13.48 --- - --" - - - <br /> MW-3 10/05/93 4.86 19.10 -14.24 920 --- - 80 ND<0.5 ND<0.5 1.0 - PACE <br /> MW-4 12/21/92 5.12 21.68 -16.56 110 - -"- ND<0.5 ND<0.5 ND<0.5 ND<0.5 - - <br /> MW-4 04/04/93 5.12 18.80 -13.68 180 - -- 1.1 ND<0.5 ND<0.5 0.9 ND (d) PACE <br /> OC-1 (c) 04/04/93 - --- - 310 --- - 1.9 ND<0.5 ND<0.5 0.9 - PACE <br /> MW-4 04/26/93 5.12 18.55 -13.43 - ND<50 ND<< - -- <br /> MW-4 10/05/93 5.12 19.30 -14.18 140 ND<50 ND<5000 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND (d) PACE <br /> OC-1 (c) 10/05/93 -- - - 160 - - ND<0.5 ND4.5 ND<0.5 ND<0.5 - PACE <br /> OC-2 (e) 04/04/93 - - ND<50 - - ND<0.5 ND<0,5 ND<0.5 ND<0.5 - PACE <br /> OC-2 (e) 10/05/93 - - ND<50 - - ND<0.5 ND<0.5 ND<0.5 ND<0.5 - PACE <br /> ABBREVIATIONS: NOTES: <br /> TPH-G Total petroleum hydrocarbons as gasoline (a) Casing elevations surveyed to the nearest 0.01 foot relative to mean sea level. <br /> TPH-D Total petroleum hydrocarbons as diesel <br /> B Benzene (b) Groundwater elevations in feet above mean sea level. <br /> T Toluene <br /> E Ethylbenzene (c) Blind duplicate. <br /> (d) See laboratory report for detection limit <br /> x Total xylenes <br /> HVOCS Halogenated volatile organic compounds (e) Feld blank <br /> ppb Parts per billion <br /> Not measuredranalyzed/avaitabte <br /> ND Not detected above reported detection limit <br /> PACE Pace,Inc. <br /> 28-Dec-93 PAGE 1 <br />