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TABLE 1-SUMMARY OF RESULTS OF GROUNDWATER SAMPLING <br /> BP OIL COMPANY SERVICE STATION NO.11193 <br /> 3202 WEST HAMMER LANE,STOCIKTON,CALIFORNIA <br /> ALISTO PROJECT NO.10.136 <br /> WELL DATE OF CASING DEPTH TO GIROUNDWATER TPH-G TPH-D TPH B T E X MTBE HVOC DO LAB <br /> ID SAMPLING/ ELEVATION(a) WATER ELEVATION (b) (u94) (ug/1) (ug/1) (ugA) (ugA) (u94) (ug4) (ug/1) (ug+l) (ppm) <br /> MONITORING (Feet) (Feet) (Feet) <br /> 00•2 (t) 04/04/93 ND<50 - - ND<0.5 ND<0.5 ND<0.5 ND<0.5 --- - --- PACE <br /> OC-2 (f) 10/05/93 --- ND<50 - - ND<0.5 ND<0.5 ND<0.5 ND<0.5 -- - --- PACE <br /> QC-2 {f) 01/07/94 - - - ND<50 - --• ND<0.5 ND<0.5 ND<0.5 ND<0.5 - - PACE <br /> QC-2 (f) 04/20194 -- - --- ND<50 •-- --- ND<0.5 ND<0.5 ND<0.5 ND<0.5 - - PACE <br /> OC-2 (f) 07/28/94 - ND<50 - - ND<0.5 ND<0.5 ND<0.5 ND<0.5 - - --- PACE <br /> QC-2 (t) 12/09/94 --- - ... ND<50 --- --- ND<0.5 ND<0.5 ND<0.5 ND<1 - - PACE <br /> QC-2 {f) 03/03195 - - ND<50 --- --- ND<0.50 ND<0.50 ND<0.50 ND<1.0 - An <br /> QC-2 (f) 04112195 - - - ND<50 - - N0<0.50 ND<0.50 ND<0.50 ND<1.0 - - ATI <br /> QC-2 (f) 07/20/95 - - --- ND<50 - - ND<0.50 ND<0.50 ND<0.50 ND<1.0 - - --- ATI <br /> OC-2 {f) 11/02/95 .-- ND<50 --- - ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<5.0 - - ATI <br /> QC-2 (f) 01/16196 - -•- ND<50 --- - ND<0.50 ND<0.50 ND<0.50 ND<1.0 ND<5.0 - - ATI <br /> QC-2 {f) 04/22/96 --- ND<50 - - ND<0.5 ND<1 ND<1 ND<1 ND<10 - - SPL <br /> QC-2 {f) 07/12196 - - --- ND<50 -- - ND<0.5 ND<1 ND<1 ND<1 ND<10 - - SPL <br /> ABBREVIATIONS: NOTES: <br /> TPH-G Total petroleum hydrocarbons as gasoline (a) Casing elevations surveyed to the nearest 0.01 foot relative to mean sea level. <br /> TPH•D Total petroleum hydrocarbons as diesel <br /> TPH Total petroleum hydrocarbons (b) Groundwater elevations in feet above mean sea level. <br /> B Benzene <br /> T Toluene (c) Blind duplicate. <br /> E Ethylbenzene <br /> X Total xylenes (d) Sample pattern does not match gasoline standard pattern. <br /> MTBE Methyl tert butyl ether <br /> HVOC Halogenated volatile organic compounds (e) Detection limits vary;see laboratory report. <br /> DO Dissolved oxygen <br /> ugA Micrograms per liter (1) Travel blank <br /> Ppm Parts per million <br /> Not measured/analyzed/applicable <br /> ND Not detected above reported detection limit <br /> PACE Pace,Inc. <br /> ATI Analytical Technologies Inc. <br /> SPL Southern Petroleum Laboratories <br /> Ff/J1g4Ne1]FF11gQ7 <br /> 02Jan.137 PAGE 4 <br />