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4 F--I1 r--T, 1-1 ■. 'JI r V F: r". r-7 ■ L r V i , r-t ■ l'. -.--4f F-7' <br /> Monitoring Report:7500 West Eleventh Street Tracy,CA <br /> Well Date TPHd TPHg Benzene Toluene Ethyl- Total TBA MTBE TAME DIPE ETBE 1,2-DCA EDB Ethanol Lead <br /> No. Sampled benzene Xylenes <br /> µg/L µg/L µ91L µ91L Ng/L µgll- µ91L µg/L µ91L µ91L µg/L µ91L 1491L µglL mg/L <br /> MW-12 04/11/02 280 7 570' ND ND ND ND NO ND ND NO NO n/a n/a NO n1a <br /> 07/29/02 15007 1,700 15 0.99 0.79 8.2 0.55 NO ND ND NO n/a n/a n1a n/a <br /> 10/25/02 110 7 280 1.3 NO ND ND NO ND ND ND ND n/a n1a ND n/a <br /> 01/20/03 98' ND ND NO NO NO ND ND ND NO ND n/a n1a ND n/a <br /> 04/15/03 ND 15 170 1.6 ND NO ND NO NO ND ND NO n/a n/a NO n/a <br /> 07/30/03 nls n/s n/s n/s nls n/s n/s n/s n/s n/s n/s nls nls n/s n/a <br /> 10127/03 1307.11 160 3.6 ND ND NO ND ND ND ND NO ND ND n/a n1a <br /> MW-12A 04/11/02 ND ND ND ND ND ND ND NO ND NO ND n1a n/a NO n1a <br /> 07/29/02 ND NO ND ND NO ND ND ND NO NO ND n/a n/a n1a n1a <br /> 10/25/02 ND 14 ND ND ND ND ND ND NO ND NO ND n1a n1a n/a n/a <br /> 01/20/03 ND ND ND ND ND ND ND ND ND ND ND n/a n/a n1a n1a <br /> 04/15/03 NO 15 NO ND ND ND ND ND NO NO ND NO n/a n1a Na n/a <br /> 07/30/03 n/s n/s nls n/s nts n/s n1s n/s n/s n/s n/s n/s n/s n/s n/a <br /> 10/27/03 n/s n/s n/s n/s n/s n/s nls n/s n/s nls n/s nls n/s n/s n/a <br /> Notes: <br /> (1) Chromatogram Pattern:Unidentified Hydrocarbons<C16 <br /> (2) Chromatogram Pattern:Unidentified Hydrocarbons>C16 <br /> (3) Chromatogram Pattern:Unidentified Hydrocarbons C9-C24 <br /> (4) Chromatogram Pattern:Gasoline C6-C12 <br /> (5) ND=Not Detected above the Method Detection Limit(MDL). <br /> (6) n/a=not analyzed <br /> (7) Hydrocarbon reported does not match the pattern of the laboratory's Diesel standard. <br /> (8) Hydrocarbon reported does not match the pattern of the laboratory's gasoline standard. <br /> (9) Hydrocarbon repotted is in the late Diesel range,and does not match the laboratory's Diesel standard <br /> (10)Sample contains discrete peak in addition to gasoline. <br /> (11)Floating Product in well. <br /> (12)Laboratory reported 130 pg/L of an organic analyte which is NOT a fuel hydrocarbon in sample. <br /> (13)Laboratory reported 100µglL of an organic analyte which is NOT a fuel hydrocarbon in sample_ <br /> (14)Laboratory reported 100 lag/L of an organic analyte which is NOT a fuel hydrocarbon in sample. <br /> (15)Sample aliquot treated with silica gel before analysis for diesel range compounds. <br /> (16)Sample aliquot filtered before analysis for diesel range compounds. <br /> (17) .n/s=Well Not Sampled <br /> Page 5 of 5 Results of Anayses sic <br />