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<br /> Table 1A
<br /> Historical Groundwater Monitoring Results
<br /> 7-Eleven Store#17334
<br /> 4501 North Pershing Avenue
<br /> Stockton,California
<br /> Well fDj Ethyl- MTBE MTBE €3i;Sc�lved
<br /> Elevation Benzene Toluene Benzene Xylene TPH-G TPH-D 8020 82€€0 TBA DIPEET'E TAME Oxygen DTW SPT WTE
<br /> #TOC-} Efate fL IL /L 1i L IL fL 1L fL /L IL L mL feet feet feet
<br /> MW,4
<br /> 669 12/19/97 5>1 <5 18 6.1 31600 - 3,000 3,500 <1,000 <250 <250 <250 01 16791 000 -1210
<br /> 03/22/98 61 2 75 43 2,600 - -- 3,100 <4,000 <200 <200 <200 02 1418 000 -749
<br /> 05/35198 24 84 6.2 -1-3 3,200 »« 2,766 <2,500 <125 <125 <125 1 9 1417 000 -748
<br /> 08/25/98 26 47 79 29 1,800 - 1,220 <1250 <125 7125 <125 - 1558 000 -889
<br /> 121291980 3 <0 3 <0 3 14.7 2,200 - 31360 845 7100 7104 <100 10 15 42 000 .873
<br /> 02/17/99 <5 <5 53 <5 3,400 -- 3,100 4,300 <1000 <250 <250 <250 03 1460 000 -791
<br /> 05121199 44 628 TOT 3.84 1 750 4,7110 <400 <100 <100 <1 oo 0 14 43 000 74
<br /> 08/28/99 <3 <3 <3 <6 2,910 3,340 2,940 <400 <100 <100 <100 09 1600 000 -931
<br /> 11124199 <0 3 3,35 7.27 '1.60 2,180 -- 5,070 7,470 <800 X200 7200 <200 17 1597 000 -928
<br /> 02/02/00 <0 3 431 113 168 3,570 - 5,570 7,770 2,520 <125 <125 <125 16 1554 000 -885
<br /> t}S/16f00 <5 <5 <, <9l} 1,900 5 7013 <5QWJ <200 <200 <200 06 13,0 0 Ota -684
<br /> 08/08/00 <05 10 87 84 1,700 -1 6,000 <5,000 <20D <200 <200 03 1532 000 -863
<br /> 11114100 <150 <50 <50 <154 11500 -14,700 <2,5001 <100 7100 <100 05 1551 000 4 82
<br /> 02/06/01 88 <2 5 64 <75 1,700 - 4,100 <2,500 <100 <100 <100 05 1535 000 -866
<br /> 05123[01 <1)5 <0 5 2.9 3 1,300 -- 3,900 <2 500 <100 <100 <100 03 15 52 '-TO-0 78;83
<br /> 08/21/01 <2 5 62 82 11 1,900 - 4,800 <5,000 <2001 <200 <200 09 1694 000 -1025
<br /> 11106f01 24 <1 <1 -<1 300 - 3,100 <2,000 <500 7500/ 00 09 17371 000 -10 68
<br /> 01/09/02 <5 <5 <5 <5 1,680 - 3,230 100 <5 <5 <5 09 1559 000 -8 9D
<br /> 04111102 <0 5 831 0S7: /3.067 400 19700 3=000 <500 <50 <50 e-50 1 0 1604 0.03 g 36
<br /> 07/10/02 <05 5 1 1 11E 510 2,000 2,800 530 <50 -<501 <50 12 1725 000 -1056
<br /> 10115[020 5 5,1 .0.82 0 94 390 1,100 1,100 81=<251- <25 <25 10 1814 0 013 -1145
<br /> M1N«5.a
<br /> 722 12129198 10,400 33,400 4,580 26,900 88,600 W-17,200 <2000 <600 <50o <500 08
<br /> 15 52 000 -830
<br /> 02/17/99 4,400 19,000 2,300 17,000 90,000 - 3,900 4,800 <1000 <250 7250 <250 05 1469 000 -747
<br /> 05/21199 7,010 21,100 2,890 16,000 103,000 10,400 <1000 <250 <250 <250 05 1456 0 00 -734
<br /> 08/28/99 6,420 21,700 2,290 14,000 87,600 - 11,800 11,700 <1,000 <250 <250 <250 09 16 15 Goo -893
<br /> 11124199 7,234 20.900 2,780 75,800 1,120,0000 7,000 7,586 7800 <200 <200 <-200 10 '1610 0 55 -.e-88,
<br /> 02/02/00 3,980 11,600 2,230 10,600 53,1004____ 1,700 1,460 <500 <1251 <125 <125 16 1568 000 -8 46
<br /> 451161OG 7,900 25,000 3,000 1£x,000 ;8,000 � 4,600 <2,500 7140 <100 <100 42 13701 000 -5 45
<br /> 7-11f17334_tb1 AS 3 of 5
<br /> 11-20-D2
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