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'2 <br /> Harding Lawson Assor•lolas <br /> Tables 5, Results of Chemical Analysis on Groundwater Samples <br /> (HLA Investigation) <br /> Ethyl TPH as Fecal <br /> Well Benzene Toluene benzene Xylenes Gasoline Coliform <br /> Number Date (nnbl _(npbl �(ppb (Ppb} - (grxnI �(monI <br /> MW-1 07-03-91 ND 0.7 ND NO ND NA <br /> 08-05-91 ND ND ND ND NA <br /> 09-03-91 NO NO NO NO ND NA <br /> MW-2 07-03-91 ND 1.7 NO 1.0 0.05 NA <br /> 08-05-91 NO ND NO ND ND NA <br /> 09-03-91 ND ND NO ND ND NA <br /> M114-3 07-03-91 NO ND NO NO ND NO <br /> 08-05-91 ND ND NO NO ND NO <br /> 09-03-91 NO NO NO NO ND NA <br /> MW-4 09-03-91 ND NO ND NO ND NA <br /> Trip Blank <br /> MW-5 09-03-91 ND ND ND NO ND NA <br /> 4� Equipment Blank <br /> COW 08-05-91 ND ND ND ND ND NA <br /> � Detection 0.5 0.5 0.5 0.5 0.5 0.05 2.2 <br /> Limits <br /> Drinking Water 110 100 680 1,750 --- 2.2 <br /> Standards* <br /> ND - Not detected <br /> TPH - Total petroleum hydrocarbons <br /> ppb - Parts per billion <br /> ppm - parts per million <br /> MPU - Most probable number of bacteria per one hundred milliliters of sample <br /> ZIA - Not analyzed <br /> - cDW - Cozad Domestic Well <br /> " - Maximum contaminant levels (MCLs) are specified by the Department of <br /> Health Services; where the MCLS have not been established; recommended <br /> Drinking Water Action levels (DWALs) are listed. <br /> ORva1P/R47 <br />