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r r � r r rir �r �r rr �r r r � r rr �r� r■� <br /> • Tab 1A <br /> i <br /> Historical Groundwater Analytical Data <br /> 7-Eleven Store#14117 <br /> 2725 Country Club Boulevard <br /> Stockton,California <br /> Well IDI Ethyl- MTBE Dissolved <br /> Elevation Date Benzene Toluene benzene Xylenes TPH-G 8021B 8260 TBA DIPE ETRE TAME 1,2-DCA EDB Oxygenj DTW SPT WTE <br /> (TOC) (PgL) (NgL) (p9i) (PgL) (PgL) (PgL) (N9t) (N9L) (p9L) (N9L) (Ngt-) (N9L) (tr9L) (rng/L) (feet) (feet) (feet) <br /> MW-3 cont <br /> 05/23/01 370 230 470 1,700 6,200 -- 110 <250 <10 <10 <10 -- -- 0 9 7 77 0 00 -6 72 <br /> 09/25/01 240 140 290 900 5,100 800 <200 <50 <50 <50 -- 07 973 000 -868 <br /> 11105/01 230 140 370 1,000 5,800 - <200 1,500 <501 <50 <50 <50 <50 09 962 000 -857 <br /> 01108/02 830 820 1,300 4,540 21,000 570 <200 <50 <50 <50 -- 08 652 000 -547 <br /> MW-4 <br /> 092 08/28/99 340 <10 750 150 4,200 510 <400 <100 <100 <100 - 07 920 000 -828 <br /> 11/24199 485 134 553 1691 6,740 1,240 969 <100 <25 <25 <25 - -- 1 3 995 000 -903 <br /> 02/02/00 446 <3 1,160 664 2,150 1,220 1,490 <100 <25 <25 <25 - 13 . 996 000 -904 <br /> 05/16/00 190 <12 250 130 9,600 - 1,700 <1,200 <50 <50 <50 -- 04 717 000 -625 <br /> 08/08/00 980 <25 380 550 7,400 1,200 <1,200 <50 <50 <50 -- - 03 855 000 -763 <br /> 11/15/00 2001 <10i 400 300 4,700 - 1,100 650 <25 <25 <25 -- 05 872 000 -780 <br /> 02/07/01 200 <251 580* "01 7,900 810 <620 <25 <25 <25 - -- 08 767 000 -675 <br /> 05/23/01 89 <5 340 2601 3,500 -- 810 <620 <251 <25 <25 - 10 760 000 -668 <br /> 09/25/01 650 <10 190 140 4,500 1,300 <500 <120 <120 <120 -- -- 06 972 000 -880 <br /> 11/05/01 92 33 220 120 3,600 1,100 230 <50 <50 <50 <501 <50 08 949 000 -857 <br /> 01/Q8102 141 22 439 336 4,000 1,890 1,010 <5 <5 <5 - 0 7 6 45 TWO -553 <br /> MW-5 <5 <5 <5 <51 <5 0 9 9 73 0 00 <br /> 1 53 11/05/01 <0 5 <0 5 <4 5 <Q 5 <50 -- <5 <20 <br /> 12s 01/08/02 <5 <5 <5 <5 <50 -- <10 23 <5 <5 <5 -- - 08 660 1000 -534 <br /> MW-6 <br /> 1 26 11/05/01 <0! 2 8 <D 5 0 99 <50 <51 <201 <51 <51 1 0 9 44 0 03 -818 <br /> 1 1s 01/08102 75 <5 <5 <5 <50 -- <10 <20 10 75400 <br /> MW-7 <5 <5 <5 <5 <5 1 0 10 20 0 -9 01 <br /> t 1 s 11/05/01 <0 5 <4 5 <0 5 <0 5 <50 -- <5 <20 00 -- <br /> __ __ __ _ - --- 09 IOU01 <br /> 1 53 01/08/02 <br /> - <br /> EXRWIP on TBA=tart butanol 1 2-DCA=1,2-dichloroethane <br /> pg1L=Micrograms per liter DIPE=dnsopropyl ether EDB=1 2-dibromoethane <br /> mg/L=Milligrams per liter ETBE=ethyl-tert-butyl ether <br /> MTBE=methyl tert-butyl ether TAME=tert-amylmethyl ether <br /> TPI/-G=total petroleum hydrocarbons-as-gasoime --=Not available/not analyzed <br /> *Method Blank Contamination The associated method blank contains the target analyte at a reportable level <br /> i <br /> 7-11114117 tbl AS 2 of 2 04-25-02 <br />