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TABLE 1 GROUNDWATER MONITORING AND CHEMICAL RESULTS: FORMER REGAL STATION 603, 6425 PACIFIC AVENEUE, STOCKTON, CALIFORNIA WELL # CASING DATE DEPTH TO PROD. VACUUM CORRECTED TOTAL PET. BENZENE TOLUENE ETHYL XYLENES Methyl tert-Butyl DISSOLVED ELEVATION TOP OF THICK. AT WELL GW ELEV. HYDROCARB BENZENE Ether OXYGEN FEET AMSL WATER HEAD FT. AMSL GAS-RANGE 8020 8260 IN FEET IN FEET IN FEET PPM PPB PPB PPB PPB PPS PPB PPM 11.57 09/15/93 51.66 0 0.00 -40.09 11.57 09/29/93 51.68 0 0.00 -40.11 11.57 09/29/93 51.68 0 0.02 -40.13 <0.05 <0.3 0.5 <0.3 0.9 11.57 11/05/93 51.3 0 0.00 -39.73 11.57 12/22/93 50.65 0 0.00 -39.08 <0.05 <0.5 <0.5 <0.5 <0.5 11.57 02/10/94 50.68 0 0.02 -39.13 11.57 03/04/94 50.28 0 0.02 -38.73 11.57 03/29/94 48.65 0 0.02 -37.10 <0.05 <0.5 <0.5 <0.5 <2 11.57 04/26/94 49.16 0 0.01 -37.60 11.57 05/19/94 49.44 0 0.01 -37.88 11.57 06/22/94 47.57 0 0.01 -36.01 <0.05 <0.5 <0.5 <0.5 <2 11.57 08/17/94 49.76 0 0.01 -38.20 11.57 09/14/94 48.56 0 0.00 -36.99 <0.05 <0.5 <0.5 <0.5 <2 11.57 10/26/94 48.72 0 0.00 -37.15 11.57 12/16/94 48.38 0 0.00 -36.81 <0.05 <0.5 <0.5 <0.5 <2 11.57 01/25/95 47.85 0 0.00 -36.28 11.57 03/15/95 46.87 0 0.00 -35.30 <0.05 <0.5 <0.5 <0.5 <2 11.57 04/12/95 46.63 0 0.00 -35.06 ND 11.57 05/17/95 45.7 0 0.00 -34.13 0 11.57 06/21/95 45.34 0 0.00 -33.77 <0.05 <0.5 <0.5 <0.5 <2 11.57 Oa/01/95 45.82 0 0.00 -34.25 11.57 09/26/95 45.8 0 0.002 -34.23 11.57 10/17/95 45.42 0 0.00 -33.85 7.1.57 11/14/95 45.6 0 0.00 -34.03 11.57 12/12/95 44.47 0 0.01 -32.91 <0.05 <0.5 <0.5 <0.5 <2 11.57 01/22/96 43.8 0 0.05 -32.28 11.57 03/06/96 42.54 0 0.00 -30.97 <0.05 <0.5 <0.5 <0.5 <2 i 11.57 04/09/96 41.22 0 0.05 -29.70 11.57 05/20/96 40.25 0 0.05 -28.73 11.57 06/20/96 40.12 0 0.00 -28.55 <0.05 <0.5 <0.5 <0.5 <2 <50 1.4 11.57 07/30/96 40.9 0 0.00 -29.33 11.57 09/19/96 41.45 0 0.00 -29.88 <0.05 <0.5 <0.5 <0.5 <2 <5 11.57 12/10/96 39.82 0 0,00 -28.25 11.57 03/18/97 37.36 0 0.01 -25.80 <0.05 <0.5 <0.5 <0.5 <2 7 ND <5 11.57 06/11/97 37.24 0 0.00 -25.67 11.57 09/23/97 nm rim rim 11.57 12/16/97 37.13 0 0.00 -25.56 ¢ � ND <5 0.1 .....