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TA BLE 2 ANALYTICAL RESULTS GROUND WATER _ SHELL SERVICE STATION (WIC No 204-7524-2408) 4445 PERSHING AVENUE, STOCKTON, CALIFORNIA Monitoring Date Total Aromatic Volatile Organics EDB Total Lead Organic Coliform Well petroleum (ppb) (ppm) Lead Totaffecal Hydrocarbons (ppm) (MPN1100 mi) Gasoline Benzene Toluene Ethyl Total (ppm) (ppm) (ppm) benzene Xylenes (ppm) (ppm) MW-4 0!!21/92 01l 00012 < 00012 000085 «001 0012 - 04l21/92 < < < < < «0 02 0 005 --- _ 07/13/92 < < < c < «0 005 - 10/08/92 < < < < < _ 0 012 --- 01/11/93 0 230 0 057 0 012 00013 00087 --- «0 005 --- 04/28/93 0 079 00036 < 00030 00062 ... --. __- _ 08/26/93 0 130 00047 000086 00035 00066 --- --- ___ --- 10/01/93 0 050 00026 < 000066 < _ _.. --- 11/2D93 0 055 00017 < < < 02/1"4 0 064 000059 < < < 05/10/94 < < < < < --- _ 08/16/94 < < < < < --- 11/10/94 < < < < < - 03/16/95 < < < < < 05/16/95 0 070 < 00008 < < 08/31/95 005 00008 < < < MW-4D 10/08/92 < < < < < _ ("DUP") 10/01/93 0 060 00029 < 000082 1 __ _ _ 11/22/93 < 00015 < < < __- _ 02/15/94 0 055 00005 < < < .._ 05110/94 < < < < c 08/16/94 < < < < < 11/10/94 < < < < < ___ 03/16/95 < < 00007 < < 05/16/95 008 < 00008 < < 08/31/95 < < 0 0006 < < _-- - NOTES EDB Ethylene dtbromide < Below Practical QuantRatim Reporting Lunits per eTn Regional BouJ Staff Recommendattons for Prehmtnary Evaluation and Inveetigation of Underground Tank Site@ (August 10 1990)(PQL for BTEX-00005 ppm TPH as gasoline and dteeel-005 ppm) MPNft00 ml Mat probable number per too milhliten of sample » Not analyzed OBS Obstrucied e< L ve than tndtcated detection limit u mdtcsted on labacatory analytical repon DUP Duplicate ample pill - PvU per million ppb - Parts per L01,on Fugro 9147901dAugus1 1993 i