Laserfiche WebLink
SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue - Suite LM • Concord, California 94520 <br /> (510) 686-9600 • FAX (510) 686-9689 <br /> Kapreallan Engineering, Iric Client Project ID Unocal #5421, 7303 Pacific Ave , 8tockton <br /> 2401 Stanwell Drive, Suite 400 <br /> Concord, CA 94520 <br /> Attention Mardo Kapreallan, P E OC Sample Group 2110460-516 Reported Nov 25, 1992 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Trichloro- Chloro- 1,1 Dichloro- Trichloro- Chloro- <br /> 1,1-Dichloroethene ethene benzene ethene ethene benzene <br /> Method EPA 8010 EPA 8010 EPA 8010 EPA 8010 EPA 8010 EPA 8010 <br /> Analyst K Nill K Nill K Nill K Nill K Nill K Nill <br /> Reporting Units yg/kg Ng/kg ug/kg erg/kg Pg/kg Ng/kg <br /> Date Analyzed Nov 16, 1992 Nov 16, 1992 Nov 16, 1992 Nov 17, 1992 Nov 17, 1992 Nov 17, 1992 <br /> QC Sample # Matrix Blank Matrix Blank Matrix Blank Matrix Blank Matrix Blank Matrix Blank <br /> Sample Conc N D N D N D N D N D N D <br /> Spike Conc <br /> Added- 10 10 10 10 10 10 <br /> Conc Matrix <br /> Spike 11 11 10 10 10 92 <br /> Matrix Spike <br /> %Recovery 110 110 100 100 100 92 <br /> Conc Matrix <br /> Spike Dup 11 11 11 10 10 89 <br /> Matrix Spike <br /> Duplicate <br /> %Recovery 110 110 110 100 100 89 <br /> Relative <br /> %Difference 00 00 95 00 00 33 <br /> Quality Assurance Statement All standard operating procedures and quality control requirements have been met <br /> Laboratory Blank contained the following analytes None detected <br /> SEQ IA ANAL ICAL %Recovery Conc of M S -Conc of Sample x 100 <br /> Spike Conc Added <br /> Relative%Difference Conc of MS -Cone of M S D x 100 <br /> Scott A Chieff (Conc of MS + Conc of M S D)/2 <br /> Project Manager 2110502 KEI <197 <br />