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TABLE 1-SUMMARY OF RESULTS OF GROUNDWATER MONITORING • WELL DATE OF CASING DEPTH TO GROUNDWATER TPH-G TPN-D TPH B T E X MTBE HVOC DO LAB 10 SAMPLING/ ELEVATION (a) WATER ELEVATION (b) (ugA) (ugA) (ugA) (ugA) (ugA) (ugA) (ugA) (ugA) (ugg) (ppm) MONITORING (Feet) (Feet) (Feet) i QC-2 (h) 04/04/93 --- --- --- ND<50 --- - ND<0 5 ND<0 5 NDN 5 NDN -_5 --- --- PACE QC-2 (h) 10/05/33 --- --- --- ND<50 --- NDN 5 NDN 5 ND<0 5 NDN 5 --- --- --- PACE 00-2 (h) 01/07/94 --- --- ND<50 --- --- NDN 5 NDN 5 NDN 5 ND<0 5 --- - --- PACE M QC-2 (h) 04/20/94 --- --- --- ND<50 --- --- ND<0 5 ND<0 5 ND<0 5 NDN 5 --- --- PACE QC-2 (h) 07/28/94 --- --- --- ND<50 --- NDN 5 ND<O 5 ND<0 5 NDN 5 PACE QC-2 (h) 12/09/94 --- --- --- ND<50 --- --- NDN 5 NDN 5 NDN 5 ND QC-2 (h) 03/03/95 --- --- -- ND<50 --- --- ND<050 ND<O50 ND<050 ND<10 -- --- --- ATI QC-2 (h) 04112/95 --- - ND<50 --- ND<O50 ND<O50 ND<O50 ND<10 --- — ATI QC-2 (h) 07/20/95 --- -- -- ND<50 -- — ND<0 50 ND<0 50 NDN 50 ND<1 0 --- --- ATI QC-2 (h) 11/02/95 --- --- ND<50 -- --- NDN 5 ND<0 5 NDN 5 ND<1 0 ND<5 0 --- --- ATI QC-2 (h) 01/16/96 --- --- - ND<50 --- --- ND<O 50 ND<O 50 ND<0 50 ND<1 0 ND<5 0 --- --- ATI QC-2 (h) 04/22/96 --- --- --- ND<50 --- --- N0<05 ND<1 ND<1 ND<1 ND<10 --- --- SPL QC-2 (h) 07/12/96 --- --- -- ND<50 --- ND<05 ND<1 ND<1 ND<1 ND<10 --- --- SPL ABBREVIATIONS NOTES TPH-G Total petroleum hydrocarbons as gasoline (a) Casing elevations surveyed to the nearest 0 01 foot relative to mean sea level TPH-D Total petroleum hydrocarbons as diesel TPH Total petroleum hydrocarbons (b) Groundwater elevations In feet above mean sea level B Benzene T Toluene (c) A copy of the documentation for this data is Included in Appendix C of Alisto report 10136-06-004 E Ethylbenzene X Total xylenes (d) Blind duplicate MTBE Methyl tort butyl ether HVOC Halogenated volatile organic compounds (e) MTBE peak present See documentation In Appendix C of Alisto report 10-136-06-004 DO Dissolved oxygen ugA Micrograms per liter (f) Sample pattern does not match gasoline standard pattern ppm Parts per million -- Not measured/analyzed/applicable (g) Detection limits vary,see laboratory report ND Not detected above reported detection limit PACE Pace,Inc (h) Travel blank ATI Analytical Technologies Inc SPL Southern Petroleum Laboratories (f) Well Inacessible Sj) Well casing bent,unable to sample Blalne Tech Services,Inc,Report 991014C-1,BP Oil If 193 at 3202 W Hammer Lane,Stockton,California page 8