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TA 2 <br /> ANALYTICAL RESULTS GROUND WATER <br /> q <br /> SHELL SERVICE STATION (WIC No 204-7525-0104) <br /> 6131 PACIFIC AVENUE, STOCKTON, CALIFORNIA - <br /> (pads per trul[tan) <br /> Total Aromatic Volatile Organics <br /> Monitoring Date Petroleum Total Total Fecal <br /> Well Collected Hydrocarbons Lead Coliform Coliform <br /> (MPNI100m1) (MPN1100ml) <br /> Gasoline Benzene Toluene Ethyl- Total <br /> benzene Xylenes <br /> Mw 2 07/23/90 19 0 044 0 042 00071 0 021 - 33 «2 <br /> 10/09/90 0 570 0 078 0 043 < 0 027 «0 002 21 <<2 <br /> 01/10/90 12 036 0 075 < 0 053 - <<2 2 Neg <br /> 04/09/91 4 5 1 2 0 1 0 012 0 210 1 1 1 1 <br /> 07/17/91 7 2 3 6 0 440 0 140 0 710 — >23 >23 <br /> 10/08/91 100 76 0350 0260 0600 - 120 120 <br /> 02/26/92 170 7 4 0 220 0 320 13 <<2 <<2 <br /> 05/12/92 0 071 0 026 < 000085 00024 <<I <<3 8 <br /> 07/08/92 4 9 16 < 0 060 0 210 <<3 8 <<3 8 <br /> 10/15192 2 5 0 094 0 003 00042 00094 - <<3 8 <<3 8 <br /> 01/11/93 0 290 0 028 < 00063 < <<2 0 -- <br /> 04/28193 <br /> .04/28/93 0 790 0 030 00019 00055 0 003 - --- <br /> 08/26/93 0 390 00096 < < < <br /> 11/22/93 0 370* 00035 < < 00014 <br /> 02/15/94 0 790 0 035 <<0 002 <<O 002 c<0 002 <br /> 05/10/94 0 78 00096 < < < --_ <br /> 08/16/94 074 0 015 00013 0 001 00018 <br /> 11117/94 043 0 012 00018 < < <br /> 02/21/95 037 00067 00005 < < --- <br /> 05/16/95 036 00043 < 00011 00008 <br /> 10/05/95 0 12 00019 < < < -- --- .- <br /> MW-2D 07/08/92 5 0 17 < 0 061 0 230 --. -- <br /> ("Dup") 11/22/93 0 330* 00054 < < 000095 <br /> 02/15/94 0 720 0 033 < < < <br /> I <br /> NOTES — = Not analyzed <br /> K = Less than Practical Quantitation Reporting limits stated in the August 10 1990 'Tri Regional Board <br /> Staff Recommendations for Prehmtnary Evaluation and Investigation of Underground Tank Sites (0 050 ppm for TP1t <br /> 0 0005 ppm for BTEX) <br /> MPN710QmI = Most Probable Number(MPN)of bacteria per one hundred nullilnors <br /> « Less than the indicated detection Lind <br /> > Greater also or equal to <br /> = Positive response for petroleurn hydrocarbons as gasoline is due to the presence of an unbown hydrocarbon,not gasoline <br /> D - Duplicate sample <br /> Samples collected prior to July 27 1992 by Aegis Environmental Inc of Roseville Califorma <br /> Samples collected front July 27 lliniugh October 15 1992 by EMCON Associates of Sacramento Califorma <br /> Samples collected alter October t5 1992 by Blame Tech Services Inc of Sari Jose califonua <br /> Fugro <br /> 9347 0020A)ctober 19g5 <br />