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<br /> Historical Groundwater Monitoring Results
<br /> 7-Eleven Store#17334
<br /> 4501 North Pershing Avenue
<br /> Stockton,California
<br /> Well IDI Ethyl- MTBE MTBE Dissolved
<br /> Elevation Benzene Toluene Benzene Xylene TPH-G TPWD 80,20 8260 TBA NNE IETSE TAME Oxygen DTW SPT WTE
<br /> (TOC) DateI, AIL) II IL l- I#, I1 I I#. Il, Il. t I« #eet feet feet
<br /> MW-5A
<br /> 722 12129198 10,400 33,400 4,5$0 26.900 8800 -- 172200 <2UW <6001 <500r <500 08 15,62 0100 -8130
<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 /> 05121199 7,040 21,100 2,890 16,000 103,000 -- 10,400 <1000 <250 <250 <25O. . A5 1456 000 -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 1615 500 -893
<br /> 11124199 7,230 20,900 2,780 15.,800 1,120,000 - 7,000 7,580 <800 <200 4200 <200 IQ 1614 004 -888
<br /> 02/02/00 3,980 11,600 2,230 10,600 53,100 1,700 1,460 <500 <125 <125 <125 16 1568 000 -846
<br /> 05116100 7,900 25,000 3,000 16,000 18,000 -- 4,600 <2,500 <100 <100 <100 4Z 13 70 O,OG -648
<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 /> 11114100 5,500 16,000 2,340 12,400 48,000 _ 2,800 <2,500 <1001 <100 <100 0 4f 1568 0 013 -8461
<br /> 02/06/01 4,300 12,000 2,000 10,000 63,000 -- -- 1,800 <6,200 <250 <250 <250 04 1550 000 -828
<br /> 05/231431 3,100 7,300 1,400 6,300 30,000 - 2,100 <2,500 <100 <10Q <100 0 6 1565. a 00 -8 43
<br /> 08/21/01 3,200 7,900 1,500 7,400 47,000 -- -- 1,300 <1,200 <50 <50 <50 05 1700 000 -978
<br /> 1'1106/01 4,000 9,200 2,OQ10 8,400 47,000 - 2,300 <2,000 <600 <500 <500 08 1747 000 -1025
<br /> MW-513
<br /> 746 12/29198 3,410 19,80D 2,610 16,700 63,400 -- 1,480 <100 <25 <26 <25 1 2 1576 0001 -830
<br /> 02/17/99 11 240 120 780 5,300 - <5 <5 <20 <5 <5 <5 03 14 90 000 -744
<br /> 05/21199 104 214 38 2,610 8,780 30 <100 <25 <Z5 <25 0 2 1479 000 7n33
<br /> 08/28/99 259 151 262 286 2,340 -- 102 553 <20 <5 <5 <5 1 0 1635 000 -889
<br /> 11/24/99 925 224 39.7 274 1,260 677 88.2 221 <5 <5 <5 141 1630 000 -884
<br /> 02/02/00 4 83 7 63 2 74 10 5 274 <5 <5 <20 <5 <5 <5 1 7 1588 000 -842
<br /> 05(16100 16 49 10 433 220 4.5 S61? <2 <2 <2 4 7 1394 000 -6.48
<br /> 08/08/00 53 100 <25 140 630 - 19 <50 <2 <2 <2 1 6 1570 000 -824
<br /> 11••:114100 38 74 16 96 510 - 46 <50 <2 <2 �2 05 1590 0 Ota -844
<br /> 02/06/01 21 32 15" 61 360 -- -- 5 <50 <2 <2 <2 05 1570 000 -824
<br /> 05/23101 39 52 16 42 210 18 <50 <2 <2 <2 20 1586 000 -842
<br /> 08/21/01 77 170 42 190 460 -- -- 15 <50 <2 <2 <21 1 3 1724 0 00 -978
<br /> 1 6101 13 8 12 28 160 11 <201 <5 <5 <51 08 17 7' 0 OG -10 5
<br /> Explanation
<br /> -=Not availablelnut 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 tert butyl ether SPT=Separate phase hydrocarbon thickness
<br /> TBA=Tertiary Butanol WTE=Water table elevation
<br /> DIPE_❑ti isopropyl ether pg/L=Micrograms per liter
<br /> ETBE=Ethyl tertiary butyl ether mg1L=Milligrams per titer
<br /> TAME=Tertiary amyl methyl ether ND=Not Detected
<br /> Method Blank Contamination The associated method blank contains the target analyte at a reportable level
<br /> 7-1 111 7 3 34 tbl As 3 of 3 11-21-01
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