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_ M <br /> 4 <br /> Page 2 of 2 <br /> S_ <br /> Table 1 <br /> Groundwater Elevation and Analytical Data <br /> Former ARCO Service Station#4932 ` <br /> 1 16 E Harding Way,Stockton,CA <br /> Well Depth Groundwater SPH Groundwater Ethyl- Xylenes MtBE ,I <br /> Well pate Elevation to Water Elevation Thickness Elevation TPHg Benzene Toluene benzene (total) (802018260) DO <br /> Number Sampled (tt,MSL) (ft,TOC) (ft,MSL) (ft) Change(R) (ppb} (ppb) (ppb) (ppb) (ppb) (Ppb) (mgt) ' <br /> M W 7 7120101 P 1100 2673 -1573 000 -- <50 <0 50 <0 50 <0 50 <0 50 1801<2 0* <br /> -- <br /> 1(IMMA1 P 2862 -1762 000 -1 89 120 43 <0 50 <0 50 <0 50 7 8J<2 0 118111 <br /> MW-8 712/0/01 P 1299 2844 1545 000 — <So <0 50 <0 50 <0 50 <0 50 6 01<2 0* <br /> 10/22101 P 3040 -1741 000 -196 <50 <0 60 <0 so <0 50 <0 50 <2 51<2A 138 <br /> l <br /> MW-9 7120101 P 1124 2649 -1525 000 -- 200 12 056 <0 50 17 2 EV<2 0* <br /> -- <br /> I 0122/01 P 2836 -1712 000 -187 690 33 093 14 12 <2 51<2 0 12 111 <br /> SVE-1 915100 P 1184 2645 -1447 000 - 66,600 1,770 8,000 2,550 12,9000 1,140* -- d <br /> 1112100 P 2711 -1513 000 -066 4,750 152 469 164 823 21211,200- 28 <br /> 3/5101 P 2640 -1456 000 057 72,300 2,090 10,100 2 710 14 800 12,10013,720• 51 I <br /> 5I6/Qi P 2604 -1420 000 036 45 300 1,560 5,170 1,850 9,490 6,90014 930* 031 <br /> 7120f01 P 2749 1564 ' 001 1 44 Not sampled 0 01 ft free product present <br /> 1 0122101 P 2893 -1708 1 001 -144 Not sampled 0 01 fit tree product present <br /> T13-1 14/22/01 P — — -- <50 <0 50 <0 50 <0 50 <0 50 <2 5 — !I <br /> 1 <br /> Notes <br /> TPHg=Total petroleum hydrocarbons as gasoline <br /> M1BE=Methyl tent-butyl ether <br /> DO=Dissolved oxygen <br /> SPH=Separate phase hydrocarbons <br /> ft=feet <br /> MSL=mean sea level <br /> a <br /> TOC=top at casing <br /> ppb=parts per bittion <br /> mgfL=rm ligrams per liter <br /> P/NP=purged/not purged <br /> =analyzed using EPA Method 6260 <br /> 8020=analyzed by EPA Method 8020 <br /> 8260=analyzed by EPA Method 8280 d <br /> <=below given laboratory detection limit <br /> =groundwater elevation corrected by adding 0 77 X product ttuckMess <br /> not measured or analyzed <br /> i <br /> Prolect(ARCO/4932/Reports/Tableslgwtables4932 <br />