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• T 2 0 <br /> ANALYTICAL RESU S. GROUNDWATER <br /> 4445 PERSHING AVENUE, STOC1(TON, CALIFORNIA <br /> Monitoring Date Total Aromatic Volatile Organics EDB Total Lead Organic Collform <br /> Well Petroleum (ppb) (ppm) Lead Total/Fecal <br /> Hydrocarbons (ppm) (MPH/100 ml) <br /> Gasoline Benzene Toluene Ethyl- Total <br /> (ppm) (ppm) (ppm) benzene Xylenes <br /> (ppm) (ppm) <br /> MW-4 01/21/92 Oil 00012 < 00012 000085 «0 01 0 012 — -- --- <br /> 04121/92 < < < < < «0 02 0 005 - --- -- <br /> 07/13/92 < < < < < — «0 005 — — — <br /> 10/08/92 < < < < < -- 0 012 — --01111/93 0 230 0 057 0 012 00013 00087 --- «0 005 — - <br /> 04/28/93 0 079 00036 < 00030 00062 — — — --- -- <br /> 08/26/93 0 130 00047 000086 00035 00066 — — — — — <br /> 10/01/93 0 050 00026 < 000066 < --- --- --- --- --- <br /> 11/22/93 0 055 00017 < < < - <br /> 02/15/94 0 064 000059 < < < <br /> 05/10/94 < < < < < <br /> 08/16/94 < < < < < --- <br /> Mw-4D 10/08/92 < < < < < -- -- <br /> ("DU P") 10/01/93 0 060 00029 < 000082 < --- — --- -- — <br /> 11/22/93 < 00015 < < < -- — — — — <br /> 02/15/94 0 055 00005 <br /> 05/10/94 < < - <br /> 08/16/94 < < < < <br /> NOTES EDB - Ethylene dibromde <br /> - Belau Practical Ouantihbon Reporting Lrmts per Tn Regional Board Staff Recommendations for Prelimnary Evaluation and Investigation of <br /> Underground Tank Sfte(August 10 1990}(POL for BTEX=0 0005 ppm,TPH as gasoline and dresei=0 06 ppm.) <br /> MPN/10o rrd = Most probable number per 100 milliliters of sample <br /> = Not analyzed <br /> OBS - Obstructed <br /> « = Leas than indicated detwbon hmWmpn as indicated an IabomWy ana"mi report <br /> D Duplicate sample <br /> ppm = Partaper mi0lon <br /> ppb = Parwper-billion <br /> Fugm <br /> SMIWAugust 1894 <br />