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s T � s <br /> Groundwater Monitorin Data and Analytical Results <br /> I; Y <br /> Chevron Service Station#9-2033 <br /> 508 West Charter Way - <br /> Vertical Measurements are in feet Stockton,California Analytical results are in parts per billion(ppb) <br /> Well Ground Depth Total <br /> DATE Head Water To Notes TPH- TPH- Benzene Toluene Ethyl- Xylenes MTBE EPA 1,2-DCA Phenol Oil & Cr Cd Pb Ni Zn <br /> Elev Elev Water Diesel Gasolene Benzene 8270 Grease <br /> MW-1 <br /> 03/23/95 1038 -2322 3360 - -- -- -- -- -- -- -- -- -- -- -- <br /> 05/26/95 1038 -2191 1229 -- 170* 340 67 <0 5 11 7 2 7 9 14 <5000 44 15 59 110 <br /> 08/15/95 1038 -2140 3178 -- 54* 57 12 <0 5 079 067 - 5 8 <5 0 <5000 150 9 2 150 260 <br /> 11/16/95 1038 -2047 3085 -- 650* 4900 750 <12 100 150 17 8 3 <5000 <10 <100 <SO 20 <br /> 02/27/96 1018 -1906 2944 - 500* 1200 130 <2 5 45 28 - 17 <5 0 <5000 <10 - <100 <50 33 <br /> 05/15/96 1038 -1748 2786 -- 240 3 8 <05 21 <0 5 19 - -- -- -- -- -- -- -- <br /> 06/19/96 1018 -1703 2741 - 350* -- -- -- -- -- -- <5 0-<10 15 <5 0 <5000 <iO <100 <50 20 <br /> 08/22/96 1038 -1668 2706 -- 1800* 3500 590 <10 <10 270 510 ** 33 43 <5000 <10 <100 <50 17 <br /> 11/25/96 1038 -1627 2665 -- 1300* 8400 800 <10 140 550 110 <5 0-<10 81 12 7900 <10 <100 <50 35 <br /> 05/19/97 1038 -13 56 2394 -- 1600* 8600 1700 <20 420 430 1900 *** 49 32 <5000 <10 <100 <50 210 <br /> 08/21/97 1038 -1420 2458 -- 1000* 5900 1100 <10 340 330 1300 **** 44 9 3 <5000 <10 <100 <50 120 <br /> 11/17/97 1038 -15 17 2555 -- 1400* 5000 780 <10 180 150 1300 + 14 7 7 17,000 <10 <5 0 <50 35 <br /> 11/17/97 1038 -15 17 2555 EPA 8260++ - -- -- -- -- -- 1800 -- -- -- -- -- -- -- -- <br /> 02/09/98 1039 -2205 3243 -- 130* 620 110 18 15 23 280 <5 0-<10 8 2 <5 0 <5000 <10 <100 <50 85 <br /> 05/21/98 1038 -919 1957 -- 500* <50 <0 5 <0 5 <0 5 <0 5 4 1 <5 0-<10 <0 5 <5 0 <5000 <10 <100 <50 180 <br /> 05/21/98 1038 -9 19 1957 EPA 8260++ -- -- -- -- -- -- 4 9 -- -- -- -- -- <br /> 08/21/98 1038 -9 00 1939 -- 1000* 1200 71 4 5 2 0 7 9 300 A 47 <50 5500 <10 <5 0 <50 270 <br /> 11/09/98 1038 -10 14 2052 - 600* 2400 420 <10 12 30 7000 +++ 47 <5 0 <5000 <10 <5 0 <50 150 <br /> 02/17/99 1038 -927 1965 -- 220` 87 <0 5 077 0 6 <0 5 80 <10-<50 096 -- <5000 <10 <iO <5 0 <30 417 <br /> **2-Methylnaphtalene and Naphthalene were 8 7 and 33 ppb respectively <br /> ***2-Methylnaphtalene and Naphthalene were 8 7 and 50 ppb respectively <br /> ****Naphthalene was detected at 34 ppb <br /> +2-Methylnaphtalene and Naphthalene were 5 3 and 35 ppb respectively <br /> ++Ethanol,TBA,DIPE,TAME and ETRE by EPA 8260 were not detected,see lab report for detection limits <br /> +++Naphthalene was detected at 6 8 ppb <br /> ^Diethylphthalate was detected at 6 9 ppb <br /> 1 <br /> 9 2033 xlsl#386847 1 As of 05/11/00 <br />