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LE 2 <br /> ANALYTICAL RETS GROUNDWATER <br /> 4445 PERSHING AVENUE, STOCKTON, CALIFORNIA <br /> Monitoring Date Total Aromatic Volatile Organics E08 Total Organic Lead Coliform Tatal/Fecal <br /> Well Petroleum (ppb) Lead (ppm) (MPN/i 00 m!) <br /> Hydrocarbons (Ppm) <br /> Gasoline Benzene Toluene Ethyl- Total <br /> (ppm) (ppm) (ppm) benzene Xylenes <br /> (Ppm) (PPM) <br /> MW-2 07/23/90 < < < < < «0 01 — «1 0 — — <br /> 1 D109190 < < < c < «0 01 -- «1 0 ---01/09191 < < < < < «0 01 — — <br /> 04/09/91 < < < c < «0 01 — <<1 0 6 9 6 9 <br /> 07/17/91 006 < c < c «0 01 <<1 0 --- a23 X23 <br /> 10/08/91 006 < c < < «0 01 0 005 --- 6 9 69 <br /> 01121192 < < < < c <40 01 0 011 — — <38 <br /> 04/21/92 < c c < < «0 02 -- — — 19 <br /> 07/13/92 c < < < < — — --- — <38 <br /> 10/OM2 < < < < < c<2 0 <br /> 01111/93 < < < c < — — --- — 50 <br /> 04/28193 < < < c < — -- -- — — <br /> 08/26/93 0 051 00034 000069 00029 00061 -- — ---10/01/93 < 0 D0095 00024 < 00032 --- — — — --- <br /> 11/22/93 < < < < < --- — — — <br /> 02/15/94 < < < c < — --- -- -- — <br /> 05/10/94 c c < < < — — --- -- -- <br /> NOTES EDB = Ethylene dilommide <br /> Belmv Practical Ouanbtabon Reporting Units per'M Regional Board Staff Reeommendabons for Preliminary Evaluation and Investigation of <br /> Underground Tank SW(August 10 1 W(POL for BTEX=0 0005 ppm TPH as gasoline and diew=0 05 Ppm) <br /> MPNl100 ml = Most probable number per 100 rrullrlrters of sample <br /> Not analyzed <br /> OBS = Obstructed <br /> <s = Lets than indmated deteMon luratfmpn as indloated on laboratory ans"cal report <br /> D = Dupirple sample <br /> ppm = Par"r million <br /> ppb = Parts-per-illan <br /> Fugro <br /> 89.016may 1094 <br />