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1 <br /> LOWER DETECTION LIMIT ON EPA 602 ANALYSIS <br /> Lower Detection Limits on the 602 analysis ran on the water sampled from <br /> the excavation ranged from 2.5 ug/L (ppb) for water under the super <br /> unleaded tank Sample I.D. 88-2104-3 to 1250 ug/L (ppb) .for the water <br /> under the regular tank, Sample I.D. 88-2104-2. This variance in the <br /> lower detection limit occurs from interferances in the samples, where <br /> as the sample has to be diluted to insure reliable results from the analysis. , <br /> Examples of interferance are sediment clouding, high concentrations ranges <br /> of the contaminate(s) of interest, water chemistry irregularities, <br /> (PFI, EH, TOC, Etc. ). i <br /> J <br /> r <br /> i <br /> 7 <br /> I <br /> 1 <br /> _ � a <br /> } <br /> jJ. <br /> I <br /> I <br /> I <br /> f <br /> { <br />