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TABLE 1 GROUND WATER MONITORING AND CHEMICAL RESULTS . FORMER REGAL STATION 603, 6425 PACIFIC AVF.NEUE, STOCKTON, CALIFORNIA WELL I CASING I DATE IDEPTH TO I PROD IVACUUM ICORRECTED ITOTAL PET [BENZENE TOLUENE ETHYL XYLENES I FECAL [ELEVATION I I TOP OF I THICK [AT WELL I GW ELEV I HYDROCARB I BENZENE ICOLOFOR4 FEET AMSL I J WATER I IUD I FT AMSL I CAS RANGE I I I I IN FEET IIN FEET 11N FEET I 1 PPM I PPB PPB PPB PPB IMPN/100ml BORING 1 J 112/02/88 J I I I 1 40 1 15000 16000 1500 5400 1 BORING 2 1 112/05/88 1 1 I I 1 300 1 28000 42000 3000 17300 1 BORING 3 1 112/06/88 I 1 1 I I 400 1 8800 20000 2100 11400 J I I I 1 1 J I 1 1 MW 1 1 8 92 112/07/88 1 49 3 1 0 1 1 40 38 1 20 1 400 400 200 300 1 1 8 92 104/12/89 [ 49 08 1 0 1 1 40 16 1 1 1 I 105/04/89 1 1 0 1 1 1 90 1 3000 6300 1300 5400 1 1 8 92 105/22/89 1 49 08 1 0 02 1 1 40 14 1 1 I 1 8 92 108/24/89 1 53 81 1 1 26 1 1 43 88 [ I 1 1 8 92 110/10/89 1 53 78 1 0 125 1 1 44 76 1 1 1 110/28/89 1 1 0 00' 1 I 1 1 18 92 111/02/89 1 54 12 1 0 04 1 1 45 17 1 1 1 1 8 92 111/30/89 1 53 2 1 0 1 1 44 28 1 I 1 1 8 92 101/12/90 1 52 08 1 0 1 1 43 16 1 55 1 890 6200 720 11,000 I 1 8 92 102/19/90 1 51 92 1 0 1 1 43 00 1 1 1 8 92 102/26/90 1 51 92 1 0 1 I 43 00 1 1 I 1 8 92 105/25/90 1 52 01 1 0 1 1 43 09 1 35 1 2600 5600 290 4800 1 1 8 92 111/27/90 1 53 66 1 0 08 1 1 44 68 Ino sample taken, product is clear yellow gasoline 1 8 92 103/29/91 1 53 66 1 0 1 1 44 74 I sheen of floating product I ' 1 8 92 106/27/91 1 54 24 1 0 J 1 45 32 Isheen of floating product I • 1 10 12 109/18/91 1 56 21 1 0 02 1 1 46 07 IflGating product I 1 10 12 112/17/91 1 54 06 1 5E 03 1 1 43 94 Ifloating product I 1 10 12 101/21/92 1 54 1 1 0 1 0 38 J 44 36 Ifloating product sheen I 1 10 12 102/04/92 I 54 09 1 0 125 1 0 1 43 87 )floating product sheen I 1 10 12 103/10/92 1 53 68 1 0 01 1 0 46 1 44 01 10 01 FEET OF FLOATING PRODUCT CLEAR YELLOW 1 1 10 12 106/18/92 1 54 8 1 0 1 0 00 1 44 68 ISHEEN OF FLOATING PRODUCT CLEAR YELLOr 1 MW 2 1 10 25 112/09/88 1 50 87 1 0 1 1 40 62 1 70 1 9400 25000 2900 15400 1 10 25 104/12/89 1 50 43 1 0 1 1 40 18 1 1 1 1 10 25 105/04/89 1 I 1 1 1 80 1 22000 26000 2400 11800 J 1 10 25 105/22/89 1 51 54 1 0 1 1 41 29 1 1 1 10 25 108/24/89 1 53 94 1 0 1 1 43 69 1 NS I NS NS NS NS i 1 10 25 110/10/89 1 53 86 1 0 1 1 43 61 1 1 I 1 10 25 111/02/89 1 55 1 0 1 1 44 75 I 1 1 1 10 25 111/30/89 1 54 78 1 0 1 1 44 53 1 1 i 1 10 25 101/12/90 1 55 11 1 0 1 1 44 86 1 79 1 32000 40000 1500 14000 I 1 10 25 102/19/90 1 54 58 1 0 1 1 44 33 1 1 1 1 10 25 102/26/90 1 53 46 1 0 1 1 43 21 1 1 1 1 10 25 105/25/90 1 53 56 1 0 1 J 43 31 1 43 1 27000 26000 2000 11000 I 1 10 25 111/27/90 1 55 09 1 0 1 1 44 84 1 25 1 24000 16000 720 5600 1 10 25 103/29/91 1 55 4 J 0 1 1 45 15 1 33 1 7300 6000 1300 970U I 10 25 104/08/91 I NM 1 0 1 1 ERR I NS I NS NS NS NS I <2 10 25 106/27/91 1 55 48 1 0 1 1 45 23 1 9 2 1 1800 1800 1100 5100 1 10 25 1001/18/91 1 53 06 1 0 1 1 42 81 1 12 1 28000 32000 <300 11000 1 J 10-25 -112/117/91 1 54-97 I 0 -1 1 44 72 1 90 1 13000 16000 1200 11000 1 16 J 10 25 101/21/92 1 54 46 1 0 1 0 26 1 44 47 1 I J <2 2 1 10 55 102/04/92 1 54 28 1 0 1 0 1 43 73 1 I I >16 1 10 55 103/10/92 1 54 1 0 1 0 18 1 43 63 1 80 1 13000 13000 730 6500 I NS 1 J 10 55 106/18/92 1 55 2 1 0 1 0 00 1 44 65 1 80 113000 13000 730 6500 1 NS