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SEQUOIA ANALYTICAL <br /> 89 <br /> 1 Striker Avenue Suite 8 • Sacramento, CA 95834 <br /> (916) 921-9600 9FAX (916) 821-0108 <br /> ^'t''^"'r""y�""`,�2'"'�� J r +r+,E+,�y4^c^^••w^ t'�"6'/r+v «✓`«V✓..N!F1..� yvlG.sewi'"' <br /> Groundwater Technology Glent Project ID Manteca Bean # <br /> 1401 Halyard Drive, Suite 140 <br /> West Sacramento,CA 95691 r <br /> Reported Nov 23, 1992 <br /> Attention Matt Sutton OC Sample Group 2110398-405 `} <br /> ,fin �� ai�•o}„.��c="Ko"ro+^'�u"'3' �0 ">."'�`"` y"'iy}o, r.r.v„f� { <br /> n^� n r <c,� > ya` �cacl�4:YnPYcv�.w.sP ��.a`�iQ.: Lc v.Gb..'�o»� �fiwfi �"''.6vX+.'GiR�Y'�•£ca,,,.,r%ci.`'7��c'.,'o.,d.X:.,k,c,vn+u.I.c-.£o-t <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE <br /> Benzene Totuene Ethylbenzene Xylenes <br /> i <br /> I <br /> Method EPA 602 EPA 602 EPA 602 EPA 602 <br /> Analyst Chtaravallob Ch:EravaPob Quaravalloti Chi:rZ tw1ot1 <br /> Reporting Units ug/L pg/L pg/L u9/L <br /> Date Analyzed Nov 19, 1%2 Nov 19, 1992 Nov 19, 1992 Nov 19, 1992 <br /> OC Sample# 211.0355 211-0355 211-0355 211-0355 <br /> Sample Cone.: N D N D N D N D <br /> Spike Conc. <br /> Added: 10 10 10 20 <br /> I <br /> Cone. Matrix <br /> Spike: 93 91 93 19 <br /> Matrix Spike <br /> %Recovery: 93 91 93 85 <br /> Cone. Matrix <br /> Spike Dup.: 96 95 96 19 <br /> Matrix Spike <br /> Duplicate 95 <br /> %Recovery: 96 95 96 <br /> Relative <br /> %Difference: 32 <br /> 4 3 3 2 0 0 <br /> SEQUOIA ANALYTICAL %Recovery Conc of M S -Conc of Sample X 100 <br /> Spake Ccnc Added <br /> Relative%Difference Cone of M S -Cone of M S D X 100 <br /> Michael R Giles (Cone cf M S + Cone e1 M S!)/2 <br /> Laboratory Director 2110398 GRw <3> <br />