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• <br /> I <br /> • 4I!e3of3 � <br /> Table 1 <br /> Groundwater Elevation and Analytical Data — <br /> Former ARCO Service Station#4932 <br /> 16 E Harding Way Stockton CA <br /> „well Depth, Gmundwater LPH Groundwater Ethyl- Xylenes MtBE <br /> Well Date gyration to Water Elevation Thickness Elevation TPHg Benzene Toluene benzene (total) {8020/&2$0} 00 <br /> Number Sampled F MSL) (14 TOC) (ft.MSL) eft) Change(ft} (ppb) (ppb)i (ppb) {ppb) (ppb) (ppb) (mg/L) <br /> SVE-1 915100 P 1184 26 45 -1447 000 - 66,600 1,770 8,000 2 550 12,900 1,140' — <br /> 11/2100 P 2711 1513 000 -066 4 750 152 469 164 823 212/1200 28 <br /> 315101 P 26 40 1456 000 0 57 72 300 2090 10,100 2 710 14 800 12,100/3,720 51 <br /> 5/8101 P 26 04 -1420 000 0 36 45,300 1,560 5170 1,850 9,490 6 900/4 930 0 31 <br /> 7/20/01 P 2749 -1664 ' 0 01 -144 Not sampled 0 01 ft LPH present <br /> 10/22/01 P 2893 -1708 ' 0 01 -144 Not sampled 0 01 ft LPH present <br /> 01/15/02 — — — -- Not sampled well dry <br /> 04/11/02 NP 27 88 -1604 000 1 04 87,000 5 200 16,000 31900 20 000 20,000119,000 3 0 <br /> 07112!02 NP 2898 -1714 000 -110 85,000 4,100 8,900 3,700 18,000 13,000115,000 2 2 <br /> DMW-1 4/11102 P 11 98 2810 -1612 000 -- <500 96 <5 0 <5 0 <5 0 2301140 -- <br /> 07/12/02 P 29.25 -1727 000 -115 55 <0 50 <0 50 <0 50 <0 50 72164 2 7 <br /> DRAW-2 07/12/02 P 11110 2836 -1726 000 — <50 10 16 0 62 2 0 13/85 2 8 <br /> DMW-3 07/12/02 P 11 49 28 94 -1745 000 — 90" <0 50 1 3 <0 50 10 1601140 2 7 <br /> EW 1 4111/02 P 11 83 2795 1612 000 - <200,000 9,900 40 000 4,700 24,000 550 000/520 000 -- <br /> 07/12102 P 2904 -17.21 000 -109 350,000 13,000 49,000 6,100 34,000 320,0001460,000 2 7 <br /> EW-2 07/12/02 P 1122 28 51 -17.29 0 00 — <50,000 <500 <500 <500 <500 56,000165,000 2 8 <br /> QCTB 07!12(02 — — — — — <50 <0 50 <0 50 <0 50 <0 50 <2 5 — <br /> Notes <br /> TPHg=Total petroleum hydrocarbons as gasoline ppb=parts per billion <br /> MtBE=Methyl tertiary butyl ether mg/L=milligrams per liter <br /> DO=Dissolved oxygen PMP=purged/not purged <br /> LPH=liquid phase hydrocarbon 8020=analyzed by EPA Method 8020 <br /> ft=feet 8260=analyzed by EPA Method 8260 <br /> MSL=mean sea level <=below given laboratory detection limit <br /> TOC=top of casing <br /> =analyzed using EPA Method 8260 <br /> Hydrocarbon pattern is present in the requested fuel quantitation range but does not resemble the pattem of the requested fuel <br /> =groundwater elevation corrected by adding 0 77 X product thickness <br /> —=not measured or analyzed <br /> ProjectlARCO/4932/Reports/Tables/gwtables4932)ds <br />