Laserfiche WebLink
SEQUOIA ANALYTICAL <br /> 819 Striker Avenue, Suite 8 • Sacramento, CA 95834 <br /> (916) 921-9600 • FAX (916) 921-0100 <br /> r , I arc hza 1 is >„wca.cs,t.�,.,a„ �s ,.ti,. ,o-s sw ay>k.•..4 J Oa r N>,.x-a...N. r.Y,c»ate <br /> EMCON Associates Client Project ID Shed, 6131 Pacific Ave, Stockton <br /> 1433 N Market Blvd <br /> Sacramento, CA 95834 <br /> IAttention Shelia Kruse QC Sample Group 2050313-14 x r Reported May 22, 1992hY M1 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE <br /> Benzene Toluene Ethyl benzene Xylerms <br /> Method EPA 8020 EPA 8020 EPA 8020 EPA a= <br /> Analyst C Chapman C Chapman C Chapman C Chapman <br /> Reporting Units ppb ppb ppb ppb <br /> Date Analyzed May 2o, 1992 May 20, 1992 May 20, 1992 May 20, 1992 <br /> QC Sample# 20502%A 20502M 20502M 20500M <br /> Sample Cone.: N D N D N D N D <br /> 10 Spike Conc. <br /> Added: 10 10 ip 20 <br /> Conc. Matnx <br /> Spike: 77 81 80 16 <br /> Matnx Spike <br /> %Recovery: 77 81 80 8o <br /> Conc. Matnx <br /> Spike Dup.: 80 85 82 17 <br /> Matrix Spike <br /> Duplicate <br /> % Recovery- 8o 85 82 85 <br />' Relative <br /> %Difference: 38 48 25 61 <br /> SEQUOIA ANALYTIC %Recovery Conc of M S -Conc of Sample x 100 <br /> Spike COf1C.Added <br /> Relative%Werence Conc of M S -Cone.of M S D x 100 <br /> Michael R Giles (Conc of M S + Conc of M S D) 2 <br /> Laboratory Director <br /> 2050313 EMC <2> <br /> I <br />