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TABLE 1 GROUND WATER MONITORING AND CHEMICAL RESULTS: FORMER REGAL STATION 603, 6425 PACIFIC AVENEUE, STOCKTON, CALIFORNIA WELL # :1 CASING :1DATE :)DEPTH :1 PROD. :VACUUM ELEVATION 1 TOP OFF WATER :]CORRECTED:ITOTAL PET. :1BENZENE TOLUENE ETHYL XYLENES � FEET AMSL ;� :I THICK. :IAT WELL :1 GW ELEV.:] HYDROCARB :1]FT. :1HEAD BENZENE : AMSL :� GAS-RANGE IN FEET :1TN FEET :11N FEET ;1. :1 °1 :1 .1 PPM :1 PPB PPB PPB PPB '� :112/17/68 :1 9.82 :104/12/89 50.92 :1 0.69 :� 1 :] 9.82 :[05/22/89 52.04 0.6 'I -40.546 :] 9.82 :108/24/89 :� 54.77 :� . 1 -41.74 :1 °� 9.82 : 1.66 -43.622 :1 30/10/89 I 110/28/8.9 9.82 :117/02/89 54.8 0 :I -44.98 I ' 9.82 111/30/89 :1 54.621 i 0 I 1 -49.8 ] 1 9.82 :101/12/90 :] 53.43 ;] 0 ] -43.61 :1 84 2000 1300 99 12000 9.82 :02/19/90 :] 53.29 :1 0 :I :1 -93.97 :] :{ 9.82 :102/26/90 :1 53.23 :1 01 � :1 :] -43.41 :] 9.62 :105/25./90 :1 56.81 :1 0 :] 9.82 :11/27/90 � 59.7 :] :1 °I -96.99 � 77 :1 27000 26000 2000 11000 0 :1 1 -44.88 el 720 2400 3400 1300 13000 :] 9.82 :103/29/91 55.87 :.1 0 :j ;j -46.05 :sheen of floating product :] 9.82 :106/27/91 :�. 55.16 0 :] 1, -45.34 :sheen of floating product 9.82 109/18/91 ] 55.05 ] 0 :1 : -45.23 :]sheen of floating product :] 9.82 :112/17/91 54.55 0 - -44.73 14 590 320: 19 2600 9.82 : 01/21/92 it 53.82 :] 0 :] 0.22 :) -44.22 :1 :1 9.82 :102/04/92 1 54.04 :] 0.17 o :] -44.08 9..82 : 03/10/92 :I 48.92 0.21 :] 0.26 :I -39.19 : 0.21 FEET OF FLOATING PRODUCT - CLEAR YELLOW.:] 1 9.82 104/29/92 :1 54.1 ] 0.08 0.00 :1 -44.22 :10.08 FEET OF FLOATING PRODUCT - CLEAR YELLOW.:1 E :1 9.82 :106/18/92 :1 54.9 0.28 0.00 :1 -44.86 :10.28 FEET OF FLOATING PRODUCT - CLEAR YELLOW.:1 :1 9.82 107/16/92 :1 54.69 0.08 0.24 -45.03 :10.08 FEET OF FLOATING PRODUCT - CLEAR YELLOW.:] :1 9.82 : 08/14/92 1, 4.9.74 0.08 :1 0.00 :1 -39.86 10.06 FEET OF FLOATING PRODUCT - CLEAR YELLOW.: :j 9.82 :109/22/92 :1 55.6 1 0 :I NM 1SHEEN OF PRODUCT :] :I 9.82 : 09/25/92 :1 50.2 1 0 :1 0.67 1 -41.05 :SHEEN OF PRODUCT CERT. SVY:] 11.99 :10/09/92 1 55.6 ] 0 :} 0.45 ] -44.11 :SHEEN OF PRODUCT :] 11.94 :111/11/92 :1 54.9 :1 0 :1 0.98 :1 -43.94 :SHEEN OF PRODUCT :1 11.94 :112/09/92 :1 54.78 :1 0 1.40 :1 -44.24 :I 0.26 1 4.4 <0.3 X0.3 92 ;1 11.94 :101/15/93 :1 54.42 :I 0 0.00 1 -42.48 :1 :1 :I :1 11.94 :102/08/93 :1 54.38 : 0 1.11 :1 -43.55 :] :1 'I 1 11.94 : 03/11/93 52.9 : 0 1.41 :] -42.37 12 160 250 14 -5400 11.94 :104/15/93 1 51.12 0 1.41 -40.59 :] :] 11.94 :105/18/93 :1 51.42 0 :I 1.18 -40.66 :1 11.94 :106/14/93 ] 51.1 0 1.78 -40.94 8.3 8.8 21 6.1 670 :I 11.94 :07/19/93 ) 51.51 :1 0 3.00 -42.57 ] :� :1 11.94 :108/20/93 :1 51.1 :] - 0 ] 1.85 -.41.01 1 11.94 : 08/23/93 :1 51.2 1 0_ ] 1.78 -41.04 :1 :1 11.94 : 09/15/93 :1 51..48 1 0 1 0.00 -39.54 :1 11.94 :109/29/93 :1 52.26 1 0 1 0.00 1 -40.32 :1 11.94 :109/29/93 :1 .51.5 1 0 .:1 1,41 -40.97 :1 1 34 96 6.7 190 >1 y :1 11.94 111/05/93 :] 52 :1 0 I 0.00 -40.06 :� 1 1 11.94 : 12/22/93 51.24 :1 0 1 0.00 -39.30 6.2 :] 8.5 6.8 21 730 :] 11.94 : 02/10/94 :1 50.84 :1 0. :] 2.02 :1 -40.92 :] 11.94 :103/04/94 1 50.49 :1 0 :.1 2.05 :1 -40.60 1 ] :] 11.94 :103/29/94 :1 48.92 :1 0 :] 3.47 :1. -40.45 :1 9.1 ] 4 23 30 1300 :]