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• <br /> TAN 1 <br /> GROUNDWATER DATA <br /> THRIFTY OIL STATION #171, STOCKTON, CA _ <br /> DATE ANALYTICAL PARAMETERS DEPTH TO DEPTH TO PRODUCT CASING GROUNDWATER <br /> SAMPLED TPH-g BENZENE TOLUENE EthylBen— �.YLENE MTBE GROUNDWATER PRODUCT THICKNESS ELEVATION ELEVATION <br /> (u�) E��f (u€ ) ( P�-? tum? tE�-� (feet) (feet) (feet) (fed) tf 1 <br /> MONITORING WELL#MW4 Screed Intervid = 605 to 9fJ eft <br /> 11/20/92 36 000 3 800 3 200 1 800 11 OOD 23 23 <br /> 03131/93 31 000 2 000 1 200 910 5,700 70 06 NP 000 9329 <br /> 06123193 21 000 1 800 980 670 2,000 <br /> 6790 NP 000 9329 25 39 <br /> 04/13193 55 000 7,600 5 500 1 500 5 200 <br /> 70 25 NP 000 9329 <br /> 23 04 <br /> 12113193 40 000 2600 2200 11 6000 - <br /> 7095 NP 000 93 29 2234 <br /> 03108194 14 000 350 200 190 810 65 50 NP 000 93 29 27 79 <br /> 06/07/94 5 700 440 110 52 280 63 DS NP 000 93 29 3024 <br /> 09/07/94 12 000 1 700 640 260 910 6628 NP 000 9329 <br /> 27 01 <br /> 06106!95 18 000 3,700 360 190 800 33 85 <br /> 08/16/95 1 100 1900 87 ND 360 5944 NP 000 9329000 <br /> 3 29 <br /> 11/13/95 16 000 2 600 3900 230 1 300 5993 NP 0 OD 93 29 33 36 <br /> 02/13/96 7 300 2 300 89 ND 160 59 49 NP 000 93 29 33 80 <br /> 93 29 43 65 <br /> 05/14/96 14 000 6 000 200 350 470 4964 NP 000 <br /> 08/28/96 5 400 2,400 53 23 28 •<200 5240 NP 000 9329 <br /> 4099 <br /> 11114!96 <50 <0 3 <03 <03 <05 *<20 51 72 NP 000 9329 <br /> 41 57 <br /> 4780 NP 000 93 29 4S49 <br /> 02/12/97 SAMPLES LOST <br /> 41 37 <br /> 05/14/97 <50 <03 044 <03 <0 5 *42 51 92 NP 0 DO 93 29 - <br /> 08/13/97 <50 <03 <03 <03 <0 5 <20 <br /> 11/13/97 3,400 790 30 <15 13 <20 5080 NP 0 00 93 29 42 49 <br /> 02/11198 9 300 920 2000 140 900 2000 4920 NP 000 9329 4509 <br /> 43 69 <br /> 05!28198 2 500 <03 <0 3 <0 3 <0 5 5 100 4960 NP 000 9329 53 39 <br /> 08112!98 1 600 <0 3 <0 3 <03 <05 1 400 3990 NP 000 93 29 <br /> 11/10/98 610 <03 <03 <03 <05 2 100 4650 NP 000 93 29 <br /> 46 79 <br /> 02/25/99 <50 <0 3 <0 3 <03 <05 <20 37 85 NP 000 1463 -2322 <br /> 10 <br /> 05114199 850 <0 3 <03 <03 <05 1 200 4473 NP 000 1463 -23 79 <br /> 08118!99 620 <0 3 <0 3 <0 3 <0 5 940 3942 NP 000 1463 <br /> 11/16/99 <50 <03 <03 <03 <0 5 <20 4054 NP 000 1463 <br /> -2591— <br /> 02/09/00 <50 <03 <03 <0 3 <0 5 <20 39 88 NP 000 1463 2525 <br /> 85 <br /> 05/17/00 <50 <0 25 04 <0 25 07 <0 5 44 48 NP 000 14 63 <br /> -25 19 <br /> 08/23100 73 <0 3 <0 2 <02 <04 25 3982 NP 000 g14 63 -2831 <br /> 11!15100 <50 <03 <02 <02 <0 4 <0 6 42 94 NP 000 14 63 -25 98 <br /> 02/14/01 <50 <03 <02 <02 <04 <06 4061 NP 000 1463 2548 <br /> 05/15/01 <50 <03 <02 <02 <04 37 4061 NP 000 1463 <br /> 06115101 <50 <0 3 <o2 <0 2 <0 4 1 <br /> 42 44 NP 000 14 63 27 8] <br /> 12/11/03 <br /> 171TABI XLS <br /> Page 3 of 11 � <br />