Laserfiche WebLink
Roy F. Weston, Inc. - Stockton Laboratory <br /> Case Narrative <br /> Project #:L90035 <br /> Client: DELTA TRUCK SALES <br /> T <br /> LF #: 11016 <br /> Inorganics Case Narr^.tive <br /> Lab ID 863043 is a composite Sample of the client ID's <br /> #1 #2, and #5- below the lab control limit of <br /> The arsenic :spike was 55.6$, <br /> 75%. A post spike for arsenic yielded 56.1$, below the <br /> post spike control limit of 85$. <br /> The selenium spike was 23.9$, below the lab control limit. <br /> The post spike yielded 47.0$, also below the lab control <br /> limit. <br /> The serial dilation results for the following analytes were <br /> above the 10% control limit: 13.6$ <br /> Chromium 12.1$ <br /> Cobalt 19,5$ <br /> Mickel 19.45 <br /> Zinc <br /> All lab control samples, preperation blanks, calibration <br /> standards, and calibration blanks were within the lab <br /> established control limits. <br /> .Analyses completed in accordance with the EPA methods <br /> cited with the exceptions noted above. <br /> ` volatiles Case Narrative <br /> TPH-G Analysis: les analyzed. <br /> Calibration was verified for all ramp <br /> Surrogate recoveries were within acceptabUe Of <br /> samples was <br /> The method blank associated with this group <br /> free from target interferences. <br /> Spike recoveries were within acceptable limits' <br /> BTXE analysis: <br /> Calibration was verified for all samples analyzed. <br /> Surrogate recoveries were within acceptable limits for all <br /> samples• with this roup of samples <br /> The method blank associated g <br /> te interferences at, or above, the <br /> were free of target analy <br /> reporting limits. <br /> Spike recoveries were within acceptable limits. les at a <br /> Sample matrix effects prevented an <br /> these ramp <br /> lower dilution- <br /> pesticides Case Narrative les in <br /> TEH: This narrative covers the analysisOf <br /> specified holding <br /> accordance-with SW-846,__3rd__.Editaan. -- ---- - —__-- _ <br /> time for this analysis was met. <br /> we�eowithin acc�Bptableed an <br /> this analysis. Spike recoverieshas a low recovery which re- <br /> limits, however the blank spikeflaks in <br /> salted in a high RPD. The presence of interfering spike on <br /> sample #1,2,5 Composite exceeded the matrix qualifiescany <br /> ra- <br /> tion as1c: required .a diluted analysis, which qu tar et <br /> recovery data. Thp,;method blank did not contain aortingg <br /> compounds, or interfering peaks at or above the rep <br />