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' TABLE 2 <br /> ANALYTICAL RESULTS: GROUNDWATER <br /> SHELL SERVICE STATION <br /> 7910 LOWER SACRAMENTO ROAD, STOCKTON, CALIFORNIA <br /> ' (All results in parts-per-million) <br /> ' <br /> Monitoring Date Total Petroleum Aromatic Volatile Organics <br /> Well Collected Hydrocarbons <br /> Gasoline Benzene Toluene Ethyl- Total <br /> benzene Xylenes <br /> MW-1 08/15/89 + < 00006 < < < <br /> 05/11/90 + < 00011 < < < <br /> 10/11/90 + < < < < < <br /> 02/01/91 + < < < < < <br /> ' 05/08/91 + < < < < < <br /> 08/20/91 + < < < < < <br /> ' 11/21/91 + < < < < < <br /> 02/20/92++ < < < < < <br /> MW-2 08/15/89 + < < < < < <br /> 05/11/90 + < < < < < <br /> 10/11/90 + < < < < < <br /> 02/01/91 + < < < < < <br /> 05/08/91 + < < < < < <br /> 08/20/91 + < < < < < <br /> 11/21/91 + < < < < < <br /> 02/20/92++ < < < < < <br /> ' MW-3 08/15/89 + < < < < < <br /> 05/11/90 + < < < < < <br /> 10/11/90 + < < < < < <br /> ' 02/01/91 + < < < < < <br /> 05/08/91 + < < < < < <br /> 08/20/91 + < < < < < <br /> ' 11/21/91 + < < < < < <br /> 02/20/92++ < < < < < <br /> ' NOTES < - Below detection limits per 'Tri-Regional Board Staff Recommendations for Preliminary <br /> Evaluation and Investigation of Underground Tank Sites" (August 10, 1990) Practical <br /> Quantitation Reporting Limits (PQL for BTEX = 0 0005 ppm, TPH, as gasoline and <br /> diesel = 0 05 ppm) <br /> ' + Sampled by Delta Environmental Consultants, Inc, of Rancho Cordova, California <br /> ++ Sampled by Emcon Associates of Sacramento, California <br /> ' Aegis Enwronmentat Inc <br /> June 10 1992 <br />