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TABLE 2NUED) <br /> ANALYTICAL RESULTS: GROUNDWATER ' <br /> 4445 PERSHING AVENUE STOCKTON CALIFORNIA <br /> (Results in parts-per-million/pans-per-billion) <br /> Monitoring Date Total Aromatic Volatile Organics EDB Total Organic Coliform <br /> Well Petroleum (ppb) Lead Lead Total/Fecal <br /> Hydrocarbons (ppm) (ppm) (MPN/100ml) <br /> Gasoline Benzene Toluene Ethyl- Total <br /> (ppm) (ppb) (ppb) benzene Xylenes <br /> (ppb) (ppb) <br /> MW-3 07/23/90 < < < < < «0 01 --- — — — <br /> 10/09/90 < < < < < «0 01 --- <<1 0 --- --- <br /> 01/09/91 < < < < < «0 01 --- --- 5 1 <br /> 04/09/91 < < < < < «0 01 --- -- <br /> «1 0 <br /> --- <br /> 07/17/91 0 080 < 0 001 < < «0 01 <<1 0 --- <br /> 10/08/91 0 150 < < < < «0 01 0 008 --- - --- <br /> 01/21/92 <br /> -- <br /> 01/21/92 < < < < < «0 01 0 012 — -- — <br /> 04/21/92 < < < < < «0 02 --- --- --- --- <br /> 07/13/92 < < < < < <br /> 10/08/92 < < < < < <br /> 01/11/93* OBS OBS OBS OSS OBS --- -- <br /> MW-4 01/21/92 Oil 1 2 < 12 085 «0 01 0 012 --- --- --- <br /> 04/21/92 < < < < < «0 02 0 005 --- --- <br /> 07/13/92 < < < < < --- «0 005 --- --- --- <br /> 10/08/92 < < < < < --- 0 012 --- --- --- <br /> 01/11/93 0 230 57 12 1 3 8 7 --- «0 005 --- --- --- <br /> MW-40 10/08/92 < < < < < --- _-_ --- --- --- <br /> ("X-Dup") <br /> NOTES EDB - Ethylene dlbromlde <br /> < = Below Practical Quantitation Reporting Limits per "Tri Regional Board Staff Recommendations for Preliminary Evaluation and Investigation of <br /> Underground Tank Sties"(August 10, 1990) (PQL for BTEX=0 0005 ppm, TPH as gasoline and diesel=0 05 ppm) <br /> MPN/100 ml - Most probable number per 100 milliliters of sample <br /> = Not sampled,inaccessible <br /> Not analyzed <br /> << = Less than Indicated detection limit/mpn as Indicated on laboratory analytical report <br /> OBS = Obstructed,damaged vault lid <br /> D = Duplicate sample <br /> Aegis Environmental Inc <br /> 89 016/March 23 1993 <br />