Laserfiche WebLink
Sequoia680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX (415) 364 9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX (510) 988 9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento, CA 95834 (916) 921 9600 FAX (916) 921 0100 <br /> es <br /> GeoStrate iV h r V V rr Y x <br /> g Inc Client Project ID F=ormer Unocal # 0187 <br /> 3164 Gold Camp Dr, Suite 240 Matrix Soil <br /> ${ Rancho Cordova, CA 95670 ; <br /> {<Attention Greg Gurss QC Sample Group 7080805, 807, 809 Reported Sep 3, 1997 <br /> `r Y�»^K rn{ rrr , r r v t h ,ru v v v u ru n ur ,v r ♦ r ♦, „ r r} i .♦ <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Ethyl- <br /> Benzene Toluene Benzene Xylenes <br /> Method EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Analyst C Lee C Lee C Lee C Lee <br /> Concentration <br /> Spiked- 0 20 mg/kg 0 20 mg/kg 0 20 mg/kg 0 60 mg/kg <br /> LCS Batch# LCS082807 LCS082897 LCS082897 LCS082897 <br /> Date Prepared 08/28/97 08/28/97 08/28/97 08/28/97 <br /> Date Analyzed 08/28/97 08/28/97 08/28/97 08/28/97 <br /> Instrument I D #. GCHP-1 GCHP-1 GCHP-1 GCHP-1 <br /> . LCS % <br /> Recovery 103 96 97 96 <br /> Control Limits. 70-130 70-130 70-130 70-130 <br /> �; rr <br /> MS/MSD <br /> Batch # 7080805 7080805 7080805 7080805 <br /> Date Prepared 08/28/97 08/28/97 08/28/97 08/28/97 <br /> Date Analyzed 08/28/97 08/28/97 08/28/97 08/28/97 <br /> Instrument I D #- GCHP-1 GCHP-1 GCHP-1 GCHP-1 <br /> Matrix Spike <br /> % Recovery 94 92 96 96 <br /> Matrix Spike <br /> Duplicate % <br /> Recovery 94 92 95 95 <br /> Relative % <br /> Difference 00 00 10 10 <br /> BQUOIA ANALYTICAL Please Note <br /> The LCS is a control sample of known,interferent free matrix that is analyzed using the same reagents, <br /> n�� SC � preparation and analytical methods employed for the samples The LGS°�recovery data is used for <br /> validation of sample batch results Due to matrix effects,the QC limits for MS/MSD's are advisory only <br /> a lder and are not used to accept or reject batch results <br /> C'rolect Manager/Sacramento Labora ary <br /> 7080805 GSI C2> <br />