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NORTH
<br /> A.CREEK
<br /> =�ANALYTICAL
<br /> 18939 120th Avenue N E, Sun& 101 - Bothell, WA 98011-2569
<br /> Phone (las)481-9200- FAX (206)485-2992
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<br /> Steffen Robertson& Kirsten Client Project ID Diamond Lumber-Manteca 32504 22 Analyst R Uster 2
<br /> 15311 NE 90th Street Method EPA 5030/8020 S Stowell �<
<br /> ,{Redmond, WA 98052 Sample Matrbc Soil k;
<br /> ,Attention Dave Schwieger Unfts mg/kg Analyzed Dec 2, 1991,'
<br /> V v h v AwQC Sample # 111-1204 n v Yw V T „Reported Dec 5, 1991,:
<br /> NYwCl�x.+ S v y +J,.1wY.J.l Pk.rN4v.r$.., v
<br /> QUALITY CONTROL DATA REPORT
<br /> ANALYTE Ethyl
<br /> Benzene Toluene benzene Xylenes
<br /> Sample Conc: N D N D
<br /> P ND ND
<br /> Spike Conc.
<br /> Added: 050 050 050 150
<br /> Conc. Matrix
<br /> Spike: 035 038 045 131
<br /> M
<br /> Matrix Spike
<br /> ' %Recovery: 70 76 90 87
<br /> Conc. Matrix
<br /> ' Spike Dup.. 036 040 047 138
<br /> ' Matrix Spike
<br /> Duplicate
<br /> % Recovery: 76 80 94 92
<br /> ' Relative
<br /> • Difference: 28 51 43 52
<br /> I
<br /> i
<br /> kTH CREEK ANALYTICAL 96 Recovery Cane of M S -Conc of Sample x 100
<br /> Spike Conc Added
<br /> Relative%Werence Conc of MS -Conc ofMSQ x 100
<br /> ocanour (Conc of M S + Conc of M S D)12
<br /> �boratory Director
<br /> 1311201 SRK <5>
<br />
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