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Roy F. '�iestor_, Inc . - Stockton Laboratory ;. .-.. <br /> Case Nar_at.ive <br /> Zro-�ect # : L89052 } I <br /> Client: THORPE OIL <br /> LP 11588 -- I <br /> Volatiles Case Narrative — <br /> TVH analysis : <br /> 1 . This narrative covers the analysis of 2 soils . <br /> 2 . All required holdig times were met. <br /> 3 . Initiacalibration criteria was met for this analysis . <br /> l <br /> 4 . Continuing c-a ibratior_ c=iteria was slightly low nor the -� j <br /> end of run standard. <br /> 5 . The method blanks associated with this group Of samples ' <br /> was free of target analyte interferences at, or above, the <br /> reporting limits. <br /> b . There was no surrogate used in this analysis . . <br /> 7 . Spike "ecovex es were within acceptable limits . <br /> BTEX Analysis : <br /> i . This narrative covers the analysis Of.. two soil samples . <br /> 2 . All required holding times were, met. <br /> 3 . Initial calibrationc_iteria was met for this analysis . <br /> . Continuing calibrat-cn was high ,due to carryover from <br /> a previous sample. <br /> 5 . The method blank associated with this group of samples <br /> ation <br /> tin <br /> contained Benzene below rep°rtheg�enzene reportedcfor+sample <br /> of 1 . 3 nub. For this reason, <br /> � 2_ SOUTH may be consider.d. Flaboratory artifacts . This sample <br /> was 'analy:zed by h-qh gavel also and showed no detectable <br /> . All other target <br /> analytes at the 25 ppb reporting limit <br /> in the method blank at, or above, <br /> analytes were not present <br /> � � } <br /> the repoz�i ng lxi,.. <br /> o . surrogate recoveries were w?-thin acceptable Limits . <br /> 7 . surto ate recces and R°10 values were within acceptable � <br /> R. di an, <br /> UnitLeyaer ¢+. <br /> �l <br />