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l k - <br /> Roby F. Weston, Inc . - Stockton Laboratory <br /> Case Narrative <br /> Client: SOUZA Project # :1+80111 <br /> LP # : 10588 <br /> N <br /> A <br /> Volatiles Case Narrative <br /> Calibration was verified for all samples analyzed. <br /> Surrogate recoveries were within acceptable limits for all <br /> samples . ,j <br /> The method blanks . associated with this group of samples were <br /> free from target 'analyte interferences at, or above, the <br /> reporting limits : <br /> Spike recoveries were within acceptable limits . <br /> Samples were 'received: at a temperature of 1.2 degrees C. <br /> Inorganics Case Narrative <br /> Samples wereireceived at 12 degrees centigrade. EPA <br /> recommends preservation at 4 degrees ,:plus or minus 2 degrees <br /> centigrade. <br /> The digested€jmartrix spike recoveries were 69 . 7% and 72 . 4% , <br /> values outside the 75-125% control limits. The post spike <br /> of a digestedsample resulted in 78 . 0% recovery, data <br /> outside the. <br /> I5 limits, however within the 40% lirit. r <br /> Analyses completed according to EPA protocol with exc --ption �. <br /> as noted above. <br /> l <br /> t €¢ <br /> k <br /> V� <br /> c� <br /> I <br /> 4 <br />