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• <br />• <br />Table P-2 <br />Soil Data and Statistical Analysis! <br />Pathway Exclusion Analysts <br />Former Chevron Service Station 95775 <br />301 West Settleman Lane <br />Lodi, California <br />Sample ID <br />Date <br />Sampled <br />Sample <br />Depth <br />(ft bgs) <br />Benzene <br />(mg4W <br />Toluene <br />(mVW <br />y - <br />benzene <br />(-&4B} <br />Xylenes <br />(mVW <br />MtBE <br />(mWW <br />ELBE <br />(mWW <br />TAME <br />(-WW <br />MW -13@55' <br />6/30100 <br />55 <br /><0 005 <br /><0 005 <br />4) 005 <br /><0 005 <br /><0 005 <br />— <br />— <br />MW -14@55' <br />6/23100 <br />55 <br /><0 005 <br /><0 005 <br /><0 005 <br /><0 005 <br /><0 005 <br />-- <br />— <br />MW -14065' <br />6+23100 <br />65 <br /><0 005 <br /><0 005 <br /><0 005 <br /><0 005 <br />0189 <br />— <br />— <br />MW-20A/B <br />215101 <br />52 <br /><0 005 <br /><0 005 <br /><0 005 <br /><0 005 <br /><0 005 <br /><0 005 <br /><0 005 <br />MW-20AB <br />215/01 <br />55 <br /><0 005 <br /><0 005 <br /><0 005 <br /><0 005 <br /><0 005 <br />4005 <br /><0 005 <br />MW -19C <br />1/30101 <br />50 <br /><0 005 <br /><0 005 <br /><0 005 <br /><0 005 <br />40 <br /><2 0 <br /><2 0 <br />MW -19C <br />1130101 <br />58 <br />081 <br /><0 005 <br />005 <br /><0 005 <br />172 <br />0 647 <br />0 229 <br />MW -19C <br />1130101 <br />62-12 <br />061 <br /><0 005 <br />006 <br /><0 005 <br />753 <br />0 452 <br />0109 <br />MW -19C <br />I 1/30/01 <br />82 <br /><005 <br /><0 005 <br /><0 005 <br />.0005 <br /><0100 <br /><0100 <br /><0100 <br />Statistical Analysis` <br />Number of analyses <br />101 <br />101 <br />101 <br />101 <br />101 <br />21 <br />21 <br />Number of detections <br />49 <br />43 <br />20 <br />40 <br />60 <br />4 <br />2 <br />Frequency of detection (%) <br />49% <br />43% <br />20% <br />40% <br />59% <br />19% <br />10% <br />Minimum <br />0 005 <br />0 005 <br />0 005 <br />0 005 <br />0 086 <br />0 452 <br />0109 <br />Nfaxtrnurn <br />446 <br />28 <br />34 <br />200 <br />110 <br />1 <br />0 <br />mean <br />009 <br />040 <br />1 <br />4 <br />10 <br />7 <br />1 <br />Standard deviation <br />029 <br />283 <br />4 <br />25 <br />24 <br />5 <br />1 <br />5% confidence value <br />005 <br />046 <br />1 <br />4 <br />4 <br />2 <br />0 <br />SUCL 1 <br />01 <br />1 09 <br />13 <br />79 <br />137 1 <br />87 <br />18 <br />Abbreviations. <br />MtBE = Methyl tertiary butyl ether <br />EtBE = Ethyl tertiary butyl ether <br />TAME = Ternary amyl methyl ether <br />ft bgs = Feet below ground surface <br />m&ft = milligrams per lalogram <br />— = Not measured / not sampled / not applicable <br />< - - = concentration below detection licit <br />95UCL = 95 percent upper confidence lima on the arithmetic mean. <br />Footnotes <br />' Samples were analyzed by USEPA Method 8260 <br />Average result for sample and its duplicate was used for statistical purposes <br />° Half the detection limit was used for non detects when calculating statistical parameters. <br />M 1ProjecteNChevronU o"BCA.)dslSoil Data Page 3 of 3 4 51 PM, SWI <br />