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ON- <br /> �� �.� <br /> EYVIRONYENUL " � <br /> CHEWCAL ANALYSIS i LABORATORIES, INC. <br /> ' <br /> J.J,-UN.REG.CHEM.EHGF. <br /> PETROLEUM 4101)P!ERCE RD., BAKERSF!F.LD,CALIFORNIA 93308 PHONE 327-4911 <br /> T,PH DIESEL <br /> Q ;�1 ity Control Data <br /> Dames and Moore <br /> 9300 Tech Center Dr, Ste. 100 <br /> Sacramento, CA .'5$26 Analysis Date= 06--Mar-90 <br /> Attention: Duane Balch Matrix: !nater <br /> Units: ?�g/L <br /> Quality Control <br /> for Lab Nc:s: 1666-1. 1666-2., 1666-3, 1666-4, 1666-5, <br /> 1666-6 <br /> Qne sample in twenty is selectA as a representative matrix which is <br /> spiked. The percentage recovery (% Rec) of the spike is a relative <br /> masare of rhe aaw:ac7 of ttya analysis. The comparison of the spike <br /> T?ith a duplicate spike is a measure of the relative precision of the <br /> analysis. <br /> DuP <br /> Spike Spike Spike <br /> constituent % Rec Rec RPD ' <br /> ------------------ -----------_----------�-----_ ----------- --- - <br /> Tl7H Diesel 61.00 62:0! 1.63 <br /> qC connents: <br />