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Site Characterization Report: 7500 West Eleventh Street, Tracy,CA <br /> f' <br /> r_- <br /> r:'s1 Boring Sample Date Depth TPHd TPHg Ben- Tolu- Ethyl- Total MTBE Total <br /> r. LD. ID' Sampled BGS (diesel)(gasoline) zone one benzene Xylenes Lead <br /> ft. mglKg mgft mg/Kg mWKg mg/Kg mg/Kg mg/Kg mg/Kg <br /> MW4 MW4-5.5 4127100 5.5 NO 3.8 r ND ND NO 0.017 nla nla <br /> MW4-11 4127100 11 122'2 1707 0.42 0.44 0.31 0.24 nla 8.5 <br /> MW4-15 4127100 15 NO ND NO NO NO ND n/a n/a <br /> f MW4-20.5 4127100 20.5 NO NO NO NO ND ND We n/a <br /> MW5 MW5-5 4126100 5 1.50'0 NO NO NO ND NO nla n/a <br /> MW5-10 4126100 10 ND NO ND NO NO NO nla 12 <br /> MW5-15 4126100 15 11.300 NO NO NO NO NO n1a nla <br /> MV15-20.5 4126100 20.5 1.10'0 NO NO ND NO NO n/a We <br /> MW6 MW6-5 4126100 5 1.500 5.2 3 ND NO 0.0064 0.012 n/a We <br /> MW6-10 4126100 10 1.5010 1.7 3 NO NO NO NO Wit 11 <br /> MW6-15 4126100 15 1.1010 NO NO NO NO NO nla We <br /> MW6-20.5 4/26100 20.5 NO NO NO NO NO NO n/a n/a <br /> I MW7 MW7-5 4/26100 5 1.00'0 4.73 0.016 NO 0.033 0.055 nla nla <br /> MW7.10 4/26100 10 279 70 1300 3 7.8 31 36 150 n/a 7.4 <br /> MWT-15.5 4126100 15.5 1.00 NO NO NO NO 0.0094 nla 7.4 <br /> MW7-20 4126100 20 1.40'0 1.23 NO 0.007 0.0098 0.041 n/a. 10 <br /> Notes: (1) Sample ID's from samples recovered from push-probe borings are designated In the form PPm-n, <br /> where m Is the push-probe number and m is the depth below ground surface. <br /> (2) Sample ID's from samples recovered from monitoring well borings are designated in the form <br /> MWm-n,where m is the monitoring well number and m Is the depth below ground surface. <br /> (3) Chromatogram Pattern:Gasoline C6-C12 <br /> (4) Discrete peaks <br /> ' (5) Chromatogram Pattern:Unidentified Hydrocarbons>C16 <br /> (6) Chromatogram Pattern:Unidentified Hydrocarbons<C16 <br /> (7) Chromatogram Pattern:Gasoline C6-C12+Unidentified Hydrocarbons>C10 <br /> j (9) Chromatogram Pattern:Gasoline C6-C12+Unidentified Hydrocarbons C6-C12 <br /> (9) Chromatogram Pattern:Weathered Diesel C9-C24+Unident.Hydrocarbons C9-C24 <br /> (10) Chromalogram Pattern-Unidentified Hydrocarbons C9-C24 <br /> (11) Results In the diesel organics range are primarily due to overlap from a heavy oil range <br /> (12) Chromatogram Pattern:Weathered Diesel C9-C24 <br /> (13) ND=Not Detected above the Method Detection Limit(MDL). <br /> (14) n/a=not analyzed <br /> i <br /> i <br /> I <br /> i l <br /> i <br /> V <br /> Results ojAnalyses ojSad Samples Page 3 oj3 sic <br />