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<br /> TABLE 2
<br /> Historical Groundwater Monitoring Data
<br /> 7-Eleven Store#17334
<br /> 4501 North Pershing Avenue
<br /> Stockton, California
<br /> 1fVVell iD1 Ethyl- 11t}T13E Dlssofve€4
<br /> E ova€ton mite Renzerte'tolwe" $enzene Xyfeoe TPH-G Tpwo 0020 '82W TRA £1tPE ETD TAMS. Qxygo» D1rW 6PT WE
<br /> 9 L` # l 911E fmg f t t"iet e_ot
<br /> MW-5A
<br /> 7 22 4212919$ 40,400 33,400 4 580 26,900 88,600 -- 47,200 -Zoa <600 <500 X00 OW 15 52 000 -Uo
<br /> 02/17/99 4,400 19,000 2,300 17,000 90,000 - 3,900 4,800 <1000 <250 <250 <250 05 1469 000 -747
<br /> Q$121199 7,04 IIIA00 U90 1004 163,000 - 10,400 <1000 <Z0 <40 <250 0,5 14 56 0,00 -7 34
<br /> 08/28/99 6,420 21,700 2,290 14,000 87,600 - 11,800 11,700 <1,000 <250 <250 <250 09 1615 000 -893
<br /> '11124199 7,230 20,900 2,780 1'3,800 1,128,0001 7,000 7AQ ;6W <00 <2" <2 1.59 1511 000 -8$t1
<br /> 02102/00 3,980 11,600 2,230 10,600 53,100 1,700 1,460 <500 <125 <125 <125 1 7 1568 000 -846
<br /> 05116100 7,900 AW 3,000 16,0 00. 18,000 ., �- 4,6600 <2,5w 4100 <100 <100 42 1370 000 -5.48
<br /> i
<br /> 08/08/00 5,700 15,000 2,400 11,000 60,000 - -- 2,900 <2,500 <100 <100 <100 04 1542 000 -820
<br /> MW-5B
<br /> 7 46 2129108 3,410 19,800 2,910 16,700 63,404- "1,480 <100 <5 -925 <25 1.2 1516 0,00 -830
<br /> 02/17/99 11 240 120 780 5,300 - <5 <5 <20 <5 <5 <5 03 1490 000 -744
<br /> 05#21199 400 214 38 21640 817801 w 30 <100 -Q5 <25 X26 -02 14 79 000 -7,33
<br /> 08/28/99 259 151 262 286 2,340 - 102 553 <20 <5 <5 <5 10 1635 000 -889
<br /> f1124199 926 224 39.7 274 4,260 071 88.2 221 <5 1<61 <5 4.36 16.34 000 -8 84
<br /> 02/02/00 483 763 274 10 5 274 <5 <5 <20 <5 <5 <5 1 7 1588 000 -842
<br /> 05116100 4& 49 Io 43 220 4.5 -r50 <2 <2 < 4,7 13 94 0,00 &48
<br /> 08/08/00 1 53 1 100 <25 140 630 19 <50 ¢2 <2 <2 161 15 70 000 -824
<br /> Explanotlon
<br /> - =Not availabletnot sampled TOC=Top of casing elevation(in feet above mean sea level)
<br /> TPH-G=Total petroleum hydrocarbons as gasoline DTW=Depth to water
<br /> MTBE=Methyl-cert butyl-ether SPT=Separate phase hydrocarbon thickness
<br /> TBA=Tertiary Butanol WTE=Water table elevation
<br /> DIPE=Di isopropyl ether pglL=Micrograms per liter
<br /> ETBE=Ethyl tertiary-butyl ether mg/L=Milligrams per liter
<br /> TAME=Tertiary-amyl methyl ether NO=Not Detected
<br /> 17334TB2 WK4 Page 3 of 3
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