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TABLE 1-SUMMARY OF RESULTS OFF GROUNDWATER SAMPLING <br /> BP OIL COMPANY SERVICE STATION NO.11193 <br /> 3202 WEST HAMMER LANE,STOCKTON,CALIFORNIA <br /> ALISTO PROJECT NO.10.136 <br /> WELL DATE OF CASING DEPTH TO GROUNDWATER TPH-G TPH-0 TPH B T E x MTBE HVOC DO LAB <br /> IO SAMPLING! ELEVATION(a) WATER ELEVATION (b) (ug4) (u%4) (UgA) (UgA) (u9n) (UgA) (UgA) (U94) (ugA) (ppm) <br /> MONITORING (Feet) (Fset) (Feet) <br /> 00-2(f) 04/04/93 •-- -•- -- ND<% -- - ND<0.5 ND<0.5 ND<0.5 ND<0.5 - •-- -- PACE <br /> QC-2(f) 10/05193 - »• - ND<% -- -• NDN.S ND.0.6 ND<0.5 N13<0.5 - --- PACE <br /> OG-2(f) 01107!94 - - - ND<50 -- -• ND.0$ ND<0.5 ND<0.5 ND<0.5 -- -- - PACE <br /> OC-2(f) 04Md0194 »- -- -- ND<50 -- -- ND4.5 ND<0.5 ND<0.5 ND<0.5 - -- ••- PACE <br /> QC-2(r) 07/28/94 - -- - ND<50 -- - ND 0.5 ND<0.5 ND<0.5 ND<0.5 -- - PACE <br /> OC-2(f) 12/09/94 - - -- ND<50 -- ND<0.5 ND<0.5 ND<0.5 ND<1 -- - PACE <br /> OC-2(f) 03103/95 - -- - ND<50 - -- N04.50 ND<0.50 ND<0.50 ND<1.0 - - ATI <br /> OC-2(f) 04/12/95 -- - -- ND<50 - --- ND<0.50 ND<0.50 ND<0S0 ND<1.0 - - -- ATI <br /> QC-2(1) 07/20195 - - - ND<50 --• -- N04.50 ND<0.50 ND<0.60 ND<1.0 - - --- ATI <br /> Q'-'2(1) 11!02!95 -• -- ND<W - - ND<0.5 ND<0.5 ND<0.5 ND0.0 ND<5.0 -- ATI <br /> OC-2(f) 01116196 -- - -- ND<50 -- ND<0.50 ND4.50 NO<0.50 ND<1.0 ND<5.0 -- --- ATI <br /> OC-2(1) 0422196 - -• -- ND<50 - NOW.5 ND<1 ND<1 ND<t ND<10 - - SPL <br /> ABBREVIATIONS: NOTES: <br /> TPH-G Total petroleum hydrocarbons as gasoline (a) Casing elevations surveyed 10 the nearest 0.01 foot relative to mean sea level. <br /> TPH-D Total petrolamn hydrocarbons as diesel <br /> TPH Total petroleum hydrocarbons (b) Grourtdwater elevations in lest 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 votatte orgamc campounc6 (e) Detection limits vary;see laboratory repot. <br /> DO D4sdyad oxygen <br /> ugA Micrograms per titer {f7 Travel blank. <br /> ppm Parts per million <br /> -- Not rnsasured/an ed/appkable <br /> ND Not detected above reported detection krrtit <br /> PACE Pace,Inc. <br /> ATI Analytical Tadumlogies Inc. <br /> SPL SPL,Inc. <br /> 1'eY 61MIYN.rieR <br /> 13-May-96 PAGE 3 <br />