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TABLE 1 GROUNDWATER MONITORING AND CHEMICAL RESULTS: FORMER REGAL STATION 603, 6425 PACIFIC AVENEUE, STOCKTON, CALIFORNIA WELL # CASING TOP OF DATE DEPTH TO PROD. VACUUM CORRECTED TOTAL PET. BENZENE TOLUENE ETHYL XYLENES Methyl tert-Butyl DISSOLVED ELEVATION SLOT TOP OF THICK. AT WELL GW ELEV. HYDROCARB BENZENE Ether OXYGEN FEET AMSL FEET AMSL WATER HEAD FT. AMSL GAS-RANGE 8020 8260 IN FEET IN FEET IN FEET PPB PPB PPB PPB PPB PPB PPB PPM MW-5 11.84 -23.16 11/05/93 52.21 0 0.000 -40.37 MW-5 11.84 -23.16 12/22/93 51.5 0 0.000 -39.66 <50 <0.5 <0.5 <0.5 <0.5 MW-5 11.84 -23.16 02/10/94 51.66 0 Tr -39.82 MW-5 11.84 -23.16 03/04/94 51.32 0 Tr -39.48 MW-5 11.84 -23.16 03/29/99 49.4 0 0.000 -37.56 <50 <0.5 <0.5 <0.5 <2 MW-5 11.84 -23.16 04/26/94 50.2 1 0 Tr -38.36 MW-5 11.84 -23.16 05/19/94 50.56 0 Tr -38.72 MW-5 11.84 -23.16 06/22/94 48.51 0 0.000 -36.67 <50 <0.5 <0.5 <0.5 <2 MW-5 11.84 -23.16 01)/17/94 50.61 0 Tr -38.77 MW-5 11.84 -23.16 09/14/94 49.6 0 0.000 -37.76 <50 <0.5 <0.5 <0.5 <2 MW-5 11.84 -23.16 10/26/94 49.78 0 0.000 -37.94 MW-5 11.84 -23.16 12/16/94 49.22 0 0.000 -37.38 <50 <0.5 <0.5 <0.5 <2 MW-5 11.84 -23.16 01/25/95 48.58 0 0.000 -36.74 MW-5 11.84 -23.16 03J15/95 47.77 0 0.000 -35.93 <50 <0.5 <0.5 <0.5 <2 MW-5 11.84 -23.16 04/12/95 47.68 0 0.000 -35.84 MW-5 11.64 -23.16 05/17/95 46.63 0 0.000 -34.79 a MW-5 11.84 -23.16 06/21/95 46.31 0 0.000 -34.47 <50 <0.5 <0.5 <0.5 <2 MW-5 11.84 -23.16 08/01/95 46.34 0 0.000 -34.5 MW-5 11.84 -23.16 09/26/95 47.72 0 0.000 -35.88 MW-5 11.64 -23.16 10/17/95 45.85 0 0.000 -34.01 MW-5 11.84 -23.16 11/14/95 46.15 0 0.000 -34.31 MW-5 11.84 -23.16 12/12/95 47.64 0 0.000 -35.8 MW-5 11.84 -23.16 01/22/96 44.7 0 0.000 -32.86 MW-5 11.64 -23.16 03/06/96 43.41 0 0.000 -31.57 <50 <0.5 <0.5 <0.5 <2 MW-5 11.64 -23.16 04/09/96 42.44 0 0.000 -30.6 MW-5 11.84 -23.16 05/28/96 40.1 0 0.000 -28.26 MW-5 11.84 -23.16 06/20/96 40.95 0 0.000 -29.11 <50 <0.5 <0.5 <0.5 <2 <50 5.3 MW-5 11.84 -23.16 07/30/96 41.56 0 0.000 -29.74 MW-5 11.84 -23.16 09/19/96 42.4 0 0.000 -30.56 <50 <0.5 <0.5 <0.5 <2 <5 MW-5 11.84 -23.16 12/10/96 40.66 0 0.000 -28.84 MW-5 11.84 -23.16 03/18/97 38.16 0 0.000 -26.32 <50 <0.5 <0.5 <0.5 <2 <5 MW-5 11.84 -23.16 06/11/97 38.06 0 0.000 -26.22 MW-5 11.84 -23.16 09/23/97 nm nm nm MW-5 11.84 -23.16 12/16/97 37.97 0 0.000 -26.13 {t {s<50 ,liyQ'4 ` 3iI�'9j 2(`Gt! Eyi9 <5 0 MW-5 11.84 -23.16 03/11/98 35.11 0 0.000 -23.27 MW-5 11.84 -23.16 05/28/98 33.21 0 0,000 -21.37 <50 <0.5 <0.5 <0.5 <2 <5 I � ;��`s'obta�ne�{�n`�1�JtZf9, � e=cr{�es contaminateda:svit-h�vbmexaiklefpump�rr�;wFu�t1�'ahowed_�TPttg`��0�2y�igJL��,Benzen�%4�'� �`��