Laserfiche WebLink
i <br /> j SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue • Suite LM • Concord, California 94520 <br /> (510) 686-9600 • FAX (510) 686-9689 <br /> k. 64. ^{,.^rte<cx <br /> Caprealian Engineering, Inc Client Project ID Unocal, 7303 Pacific Ave, itockton <br /> 2401 Stanwell Drive, Suite 400 <br /> Concord, CA 94520 ; <br /> Attention Mardo Kapreahan, P E OC Sample Group 2061093-1096 Reported Jul 7, 1992 <br /> r w ry v1vi c4 xvr n r kin+r..v W v v rry t r +•%`^%}r4,}++-+„Y N Y r } <' + v aA.ft. w r }+.v..+.. .4 r ~ ry v h ry v l xiv v+.4+.'.�5`nrS�S^k9'Y�kf ivy <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Trichloro- Chloro- <br /> 1,1-Dichioroethene ethene benzene <br /> Method EPA 8010 EPA 8010 EPA 8010 <br /> Analyst M Nguyen M Nguyen M Nguyen <br /> Reporting Units ug/L ug/L p9/L <br /> Date Analyzed Jul 2, 1992 Jul 2, 1992 Jul 2, 1992 <br /> OC Sample# Matrix Blank Matrix Blank Matrix Blank <br /> Sample Conc . N D N D N D <br /> Spike Conc <br /> Added 10 10 10 <br /> Conc Matrix <br /> Spike: 96 88 95 <br /> Matrix Spike <br /> %Recovery 96 88 95 <br /> Conc Matrix <br /> Spike Dup . 99 90 96 <br /> Matrix Spike <br /> Duplicate <br /> % Recovery: 99 90 96 <br /> Relative <br /> % Difference 31 22 1 1 <br /> Quality Assurance Statement All standard operating procedures and quality control requirements have been met <br /> 0 SEGIUOIA ANALYTICAL %Recovery Conc of M S -Conc of Sample x 100 <br /> Spike Conc Added <br /> Relative%Difference Conc of MS -Conc of M S D x 100 <br /> colt A hieffo (Conc of M S + Conc of M S D)/2 <br /> Project Manage 2061093 KEI 45> <br />