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• �■. .r rr r r r r � r r r r rr ■■rr irs <br /> i <br /> Table 1A <br /> Historical Groundwater Monitoring Results <br /> 7-Eloven Store#17334 <br /> 4501 North Pershing Avenue <br /> Stockton,California <br /> Well l[3f Ethyl- MTBE MTBE 1 kssolued <br /> Elevation Benzene Toluene Benzene Xylene TPH-G TPH-D 8020 8260 TBA DIPE ETRE TAME Oxygen DTW SEPT WTE <br /> t7OC1 Fate lL IL I1_ ALL lL (feet)m <br /> Groundwater Grab Samples fet fet <br /> GP3 102/20)971 2A <05 <0 51 0,551 930 1,700 _ <br /> GN 02/20/97 1 9,100 33,000 3,900 124,000 1 150,000 1 —1100,000 184,000 11 _ — <br /> GP7 10=0197 1 <0 5 <0 5 <0 51 <0 5 <60 <5 1 .,. — I <br /> Monitoring Well Samples <br /> IOW-1 <br /> 7 34 121191971,200 '1210{1 680 1,x00 is,.000 - 00 9,900 14,000 <4,0 <1,000 <1,000 <1,000 it 2 1$03 0 00 -1159 <br /> 03/22/98 2,200 3,400 880 3,200 23,000 -- 11,000 <10,000 <500 <500 <500 02 1430 000 -6 96 <br /> 06115198 5,0001 7,20#1 1,700 8,800 42,(300 - 2�,0QQ <10,g0D <500 <500 <500 1 S 1443 0 00 7 09 <br /> 081251198 <br /> Well destroyed 08114198 and replaced by MW-5A on 138125198 — — -- — <br /> MW 1A <br /> 726 12119197 41 88 56 270 21800 »« 280 350 -100 <251 <25 <251 01 1888 0_00 -11 62 <br /> 03/22/98 15 6 1 13 65 560 -- 360 <500 <25 <25 <251 0 2 1423 000 -F-97 <br /> 06#15198 8,5 8,9 €1,84 6.3 <100 31 <100 <5 <5 <5 18 1437 000 -711 <br /> 08/25/98 — -- -- <br /> Well destroyed 08114198 and replaced by MW-58 on 08125198 - - - - <br /> MW-2 <br /> 864 12fI9197 <0 5 <0 5 <0 5 <0 5 2911 <50 <5 <5 < <51 <5 <5 01 1989 0 09 -112:5 <br /> 03/22/98 ND 1 6 0 68 27 ND -- <10 <100 <51 <5 <5 0 2 1525 000 -661 <br /> 06115198 <0 3 <0 3 <0 5 <0 6 <100 <10 <100 <611 <5 <5 21 1546 000 -6i 84 <br /> 08/25/98 0 363 1 11 254 1 29 170 <5 <50 <5 <5 <5 — 1607 000 -7 43 <br /> 12129198 <0 3 <q 3 <0 3 <0 6 <50 <5 <20 <5 <5 <5 0,7 16 70 000 -8 061 <br /> 02/17/99 <0 5 <0 5 <0 5 <0 5 <50 -- <5 <5 <20 <5 <5 <5 1 2 1584 000 -7 20 <br /> 13W 1199 0731 0 65 <0 3 1.16 <50 - <5 <20 <5 <5 <5 08 1576 0 00 712 <br /> 08/28/99 <0 3 <0 3 <0 3 <06 78 <5 <5 <20 <5 <5 <5 0 9 1730 000 -866 <br /> 11124199 <0 3 <D 3 0.8 0-76 <54} <5 <5 <20 <5 <5 <5 27 1726 000 -861 <br /> 02/02/00 <0 3 <03 156 215 156 <51 <5 <20 <5 <5 <5 1 3 16 80 000 -8316 <br /> 05116100 <0 5 <0 5 <{3 5 <jri� <br /> <1013 <1 <50 <2 <2 <2 0 5 14 95 0 04# 334 <br /> 08/08/00 <0 5 <0 5 <0 5 31< <br /> <1001 -- -- <1 <50 <2 <2 <2 0 5 16 67 0 00 -8 03 <br /> 11114100 0,92 <05 <0 5 <100 <1 <50 <2 Q <2 0 6 1690 0.00 -8 261 <br /> I <br /> 7-11117334_tbl As 1 of 5 08-15-02 <br />