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TABLE I CERTIFIED ANALYTICAL RESULTS FROM GROUNDWATER SAMPLES ARC PUMP AND WELDING 1211 SOUTH TURNPIKE ROAD S rOCKTON,CA U IHLR V(>(:,% 1 2 1 2 TERT BY EPA S 46WLE DATE CASING DEPTH TO GW TPH BE'aENE TOLUENE ETHYL XYLENES DCA DBA MTBE TERT DESOPROPAL ETHYL m nLmETuYL MEl HODS260 10 SAMPLED ELEVATION W 4TER ELEVATION GASOLINE BENZENE BUTANOL ETHLR TERT BUTYL ETHER (FEET AMSL) (FEET) (FEET AMSL) (UG/L) (UG/L) (UG/l.) MG&) (UGIL) (UGA.) (U(-1L) (UGA.) (UCfL) (MIL) ETHBR(UCL) (UGL) (UGH,) MW2 —03/-19/97 1197 2870-1674 5300 982 119 99 240 NA MW2 09 04 9 11 96 29 ----17-79- 070 10---2-F2 194 533 ND <20 <20 <20 <20 MW2 03/10/98 1 661 25 46 2 4400 100 Ito 22 4 <30 0 <30 <30 <30 2 118 98 1196 2 2 8 4 0 00 100 190 490 80i NA NA NA NA 2 09/3D/93 1196' 2 Y9 2 <0 5 MW2 12/01/98 1l 96 2434 1238 4600 590 27 230 130 86 <5 <5 <5 24 U2 03 03 99 1 196--73-8-0----Fl-F4 2 00 520 33 90 3 <5 <5 <5 <1 MW2 0! 2199 —1196-2304-110E---- 900 40 40 00 260 20 NA AAA 09108/99 i19 --2!W—ll 98 4800 510 18 370 110 15 A NA NA A 2 12/02199 FI 95--2-4-'§5 1299 4500 )5()l 14 400 120 20 A NA NA NA h 2 02!23 0 1 9 --219-2 96 2 00 930 28 170 330 29 <1 <1 X50 W2 2 06!08 11 96 2 L----iu-95 1000 660 23 120 250 17 7W2 09 2 0 11 9 ---2-42F----T2-72 4200 D 32 R 2 M772— 12106/00 FI-9-6 2492 1296 2')00 680 9 210 110 14 2 03 I 1196 2435 12 39 2000 670 13 130 85 <20 MW2 05 0l —1130 24 23 12 93 0 570 11 ----6T X25 MW2 08 21 01 —1130 2536 ---ITO-6- W- 42 4 7 2 U 30 13 VW 2 1 1 TO—I 1 30 2 64 34 6 0 290 3 OV 23 g VW-2 03 05 02 1 2 1402 2000 NO 86 90 45 <2 p 2 05 2 02 1130 2533 14-T3 400 1 4 778 2g VW 2 08 12 02 ----IT3- 9 l4 2700 320 3 230 24 98 W2 11 1102 11 W—27 38 162 --ZO-0 00 0 34 2 <2 5 6 1 3 109 89 80 37M 20 131 150 3 p 2 05122103 11 09 61 1552 2000 550 6 2 71 34 MW2 08 O 09 2 28 19 1 S00 380 3 11 35 20 6 8 MW2 9 1109 28 27 1 18 800 430 3 31 18 MW2 0 04 1 09 2779 1 210 630 42 23 21 2 M1 2 17 04 ----iT-77 3 1 76 300 0 9 4 8 1 <1 D 3 9 <1p <1 0 <1 0 2 09!29 04 1 28 93 17 16 1500 310 2 1 2 4 9 <0 2 11 <0 5 <05 <0 MW2 1 U 11 29 34 17 7 400 280 2 2 4 <0 5 4 76 <0 5 2 03080 177 ----1TN- 0 230 34 9 92 <05 <05 15 <50 <O5 <05 <05 2 --00-670-5 11 77 2575 13 98 <50 <0 <0 <0 5 70 0 <0 5 <0 5 <0 3 07/0t/95 12 0 26001 310 1201 240 2300 NA 1 90-1/95 1204 2100 530 52 21 94 NA 3 0410 9 1204 1800 DO 31 30 t21 :<20—<20 M 09 9 2O4 400 9 80 680 3 03!19!97 120 268U 6 84 0 1610 133 299 248 3 09 04 97 12 04 2984 I 80 6 1810 103 249 1 QO X20 3 03 1 98 04 2 13 55 3300 1 2 0 400 <5 < <53 18 98 2 24 IS 3800 00 8 44 NAA NA