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TABLE 1 GROUND WATER MONITORING AND CHEMICAL RESULTS FORMER REGAL STATION 603, 6425 PACIFIC AVENEUE, STOCKTON, CALIFORNIA WELL p I CASING I DATE [DEPTH TO I PROD IVACUUM ICORRECTED ITOTAL PET IBENZENE TOLUENE ETHYL XYLENES 1 (ELEVATION I I TOP OF I THICK IAT WELL I GW ELEV I HYDROCARS I BENZENE 1 ]FEET AMSL [ I WATER ] [HEAD IFT AMSL I GAS-RANGE I I I I I IN FEET [IN FEET IIN FEET I I PPM I PPB PPB PPS PPB 1 I I I I I I I I I BORING 1 1 112/02/86 I I I I ] 40 115000 16000 1500 5400 [ BORING 2 ] 112/05/88 I I ] I [ 300 128000 42000 3000 17300 1 BORING 3 [ 112/06/88 I [ I 1 4on 1 8800 20000 2100 11400 1 I I I I 1 1 I I I MW-1 I B 92 112/07/88 1 49 3 ] 0 I 1 -40 38 1 20 1 400 400 200 300 1 ] 8 92 104/12/89 1 49 08 [ 0 I 1 -40 16 I 105/04/89 1 I 0 I ] I 90 1 3000 6300 1300 5400 1 1 8 92 105/22/89 1 49 08 1 0 02 I [ -40 14 1 I I B 92 108/24/89 1 53 81 1 1 26 1 ] -43 88 I ] I 1 8 92 110/10/89 1 53 78 1 0 125 1 1 -44 76 [ I I i 110/28/89 1 1 0 00 1 ! I 1 I I 8 92 111/02/89 1 54 12 1 0 04 1 I -45 17 I 1 I B 92 111/30/89 1 53 2 1 0 ] I -44 28 ( I I ] B 92 101/12/90 1 52 08 1 0 I 1 -43 16 I 55 I B90 6200 720 11 000 [ [ 8 92 102/19/90 1 51 92 1 0 I 1 -43 00 1 8 92 102/26/90 1 51 92 1 0 1 I -43 00 I 1 I [ B 92 105/25/90 1 52 01 1 0 I I -43 09 1 35 [ 2600 5600 290 4800 I ] 8 92 111/27/90 1 53 66 1 0 08 1 1 -44 68 Ino sample taken product 1s clear yellow gasoline I 8 92 103/29/91 1 53 66 1 0 I I -44 74 Isheen of floating product [ 1 8 92 106/27/91 1 54 24 1 0 1 I -45 32 ]sheen of floating product 1 1 10 12 I09/1B/91 ] 56 21 1 0 02 1 1 -46 07 Ifloating product I I 10 12 112/17/91 1 54 06 1 0 00$ 1 I -43 94 Ifloating product 1 1 10 12 101/21/92 1 54 1 ] 0 1 0 38 [ -44 36 Ifloating product-sheen I 1 10 12 102/04/92 1 54 09 1 0 125 1 0 1 -43 87 Ifloating product-sheen ] 1 10 12 103/10/92 1 53 68 1 0 01 I 0 46 1 -44 01 10 01 FEET OF FLOATING PRODUCT - CLEAR YELLOW 1 1 10 12 104/29/92 1 53 6 1 0 1 0 00 1 -43 48 IWATER IS CLEAR NO PRODUCT 1 1 10 12 106/18/92 1 54 8 I 0 I 0 00 1 -44 68 [SHEEN OF FLOATING PRODUCT - CLEAR YELLOW 1 1 10 12 107/16/92 1 55 1 0 1 0 35 1 -45 23 ISH£EN OF FLOATING PRODUCT - CLEAR YELLOW 1 I 10 12 108/14/92 1 55 55 1 0 I 0 00 1 -4$ 43 1SHEEN OF FLOATING PRODUCT - CLEAR YELLOW 1 1 10 12 109/22/92 1 55 68 1 0 1 NM ( I 830 1 590 3500 750 26000 1 ] 10 12 109/25/92 1 55 85 1 0 1 1 25 1 -46 98 1 I I -44 7b 1 12 45 111/11/92 I 55 62 1 0 ] 1 67 I -44 84 1 [ I 1 12 4$ 112/09/92 1 55 34 1 0 [ 3 47 1 -46 36 I 0 73 1 <0 3 c0 3 <0 3 17 [ 1 12 45 101/15/93 1 55 72 1 0 1 0 00 I -43 27 1 I I 1 12 45 102/08/93 I 54 72 1 0 1 2 00 I -44 27 1 1 I 1 12 4S 103/11/93 1 53 5 1 0 12 62 ] -43 67 1 1 9 1 3 3 <3 450 I R1-DUPLICAT 12 4S 103/11/93 1 53 5 ] 0 1 2 62 1 -43 67 I 2 2 1 <3 <3 <3 470 I 1 12 4S 104/15/93 1 52 7 1 0 1 3 84 I -44 09 I I I 1 12 45 105/18/93 1 49 62 1 0 [ 2 91 1 -40 08 1 I I 1 12 45 106/14/93 1 51 4 1 0 14 12 1 -43 07 [ 1 2 1 4 8 8 5 <3 0 130 1 1 12 45 107/19/93 1 51 8 1 0 1 4 22 1 -43 57 I I I 1 12 45 108/20/93 1 51 98 1 0 1 4 22 1 -43 75 I I I 1 12 45 108/23/93 1 52 2 1 0 I D 94 ] -40 69 1 I I 1 12 45 109/15/93 I 52 34 ] 0 I 0 00 1 -39 89 ] I I 1 12 45 109/29/93 1 53 34 I 0 1 0 00 1 -40 89 [ I I 5