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M Sam M
<br /> TABLE 2
<br /> Historical Groundwater Monitoring Data
<br /> 7-Eleven Store#17334
<br /> 4501 North Pershing Avenue
<br /> Stockton, California
<br /> Well IDI Ethyl- MTBE Dissolved
<br /> E113V�tlr tt beta tl me Toluene Benzo Xylene TP" 'TPH-D 8020 8250 TBA 1� IP ET13E TAME OXY440 DIW SK WE
<br /> MW-4
<br /> 6 69 121143/97 5.1 <5 18 6.1 3,500 - 3,000 3,800 <1,000 <250 <250 4250 0-1 18,79 000 11110
<br /> 3122198 61 2 75 43 2,600 - - 3,100 <4,000 <200 <200 <200 02 1418 000 -749
<br /> 15195 2A 5,4 6 2 13 3,200 2,700 X2,500 <125 <125 -125 1,9 14,17 D 00 -889
<br /> 8125198 26 47 79 29 1,800 - 1,220 <1250 <125 <125 <125 - 1558 000 -889
<br /> 12129/98 <0 3 <4 3 <0.3 14.7 2,200 - 3,360 645 <100 <100 <100 10 1542 000 -813
<br /> 2117199 <5 <5 53 <5 3,400 - 3,100 4,300 <1000 <250 <250 <250 03 1460 000 -791
<br /> 121/99 4A 528 10-9 3.84 1,750 - 4,710 <400 <100 <100 <100 05 1443 000 •7.74
<br /> 8128199 <3 <3 <3 <6 2,910 3,340 2,940 <400 <100 <100 I <100 09 1600 0001 -931
<br /> MW-5A
<br /> 7 2212129M8 10,400 33,400 4,s8t1 26,900 88,600 - 17,200 X04 <,500 <500 <500 0,8 15,5V 0,00 -830
<br /> 02117/99 4,400 19,000 2,300 17,000 90,000 -- 3,900 4,800 <1000 <250 <250 <250 05 1469 000 -747
<br /> 5/21199 7,010 21,100 2,890 16,000 103,000 - 10,400 <1000 I <260 <250 <250 05 14 5151 0.00 -7.34
<br /> 8128199 6,420 21,700 2,290 14,000 87,6001 - 11 800 11 700 <1,000 <2501 <250 <2501 091 1615 000 -893
<br /> MW-5B
<br /> 746 21241/98 3,4410 19,800 2,610 16,700 63 400 - 1,480 <100 <25 425 <25 12 1576 0 04 -830
<br /> 2117199 11 240 120 780 5,300 <5 <5 <20 <5 <5 <5 03 1490 000 -74
<br /> 1199 100 214 38 2,610 5,7401 30 <i W <25 <25 <25 02 14,79 000 �7
<br /> 8128199 259 1 1511 26 2 1 -__;861 2.340 102 553, <201 <5 <5 <5 10 16351 0001 -889
<br /> Explanation
<br /> --Not avallable/not sampled TOC-Top of casing elevation On feet above mean sea level)
<br /> TPH-G=Total petroleum hydrocarbons-as-gasoline DTW-Depth to water
<br /> MTBE=Methyl-tort-bu"her SPT=Separate-phase hydrocarbon thickness
<br /> TBA-Tertiary Butanol WIFE=Water table elevation
<br /> DIPE-DHsopropyl ether lig/L-Micrograms per Ider
<br /> ETRE Ethyl-tertiary-butyl ether mg/L-Milligrams per lifer
<br /> TAME=Tertiary-amylnethyl ether ND-Not Detected
<br /> I
<br /> 173341'B2 WK4
<br /> Page 2 of 2
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