Laserfiche WebLink
Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 96W FAX(510) 988 9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916)921 0100 <br /> touchstone Developments Client Project 1D Chevron #9-8264 f Tracy <br /> P O Box 2554 Matrix Solid <br /> Santa Rosa, CA <br /> Attention Jeff Monroe QC Sample Group 5111031-036 Reported Nov 16, 1995 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Benzene Toluene Ethyl Xylenes Diesel Lead <br /> Benzene <br /> CSC Batch# SP111495 SP111495 SP111495 SP111495 SP111595 ME111395 <br /> 8020EXA 8020EXA 8020EXA 8020EXA 8015EXA 601OMDB <br /> Analy Method EPA 8020 EPA 8020 EPA 8020 EPA 8020 EPA 8015 EPA 7420 <br /> Prep Method EPA 5030 EPA 5030 EPA 5030 EPA 5030 EPA 3550 EPA 3050 <br /> Analyst K Nill K Nill K Nill K Nill S Le T Le <br /> MS/MSD # 5111033 5111033 5111033 5111033 - 5110804 <br /> Sample Cone ND N D ND N D 34 mg/kg <br /> Prepared Date. 11/14/95 11/14/95 11/14/95 11/14/95 - 11/13/95 <br /> Analyzed Date 11/14/95 11/14/95 11/14/95 11/14/95 - 11/14/95 <br /> Instrument I D # HP-4 HP-4 HP-4 HP-4 - MV-1 <br /> Conc Spliced 0 40 mg/kg 0 40 mg/kg 0 40 mg/kg 1 2 mg/kg 50 mg/kg <br /> Result 038 039 038 12 - 90 <br /> MS % Recovery 95 98 95 97 - 112 <br /> Dup Result 038 039 039 12 82 <br /> MSD % Recov 95 98 98 98 96 <br /> RPD 00 00 26 17 _ 93 <br /> RPD Limit 0-20 0-20 0-20 0-20 - 0-20 <br /> LCS # 2LCS111495 2LCS111495 2LCS111495 2LCS111495 LCS111595 BLK111395 <br /> Prepared Date 11/14/95 11/14/95 11/14/95 11/14/95 11/15/95 11/13/95 <br /> Analyzed Date 11/14/95 11/14/95 11/14/95 11/14/95 11/15/95 11/14/95 <br /> Instrument I D # HP-4 HP-4 HP-4 HP-4 HP-3B MV-1 <br /> Cone Spiked 20jug/L 20Ng/L 20ug/L 60yg/L 10 mg/kg 50 mg/kg <br /> LCS Result 19 20 20 62 88 43 <br /> LCS % Recov 96 101 102 103 88 86 <br /> LCS <br /> Control Limits 55-145 47-149 47-155 56-140 38-122 75-125 <br /> Please Note <br /> The LCS is a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> SlfQy9lJN ANALYTICAL, #1271 preparation,and analytical methods employed for the samples The matrix spike is an aliquot of sample <br /> fortified with known quantities of specific compounds and subjected to the entire analytical procedure If <br /> the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> interference,the LCS recovery is to be used to validate the batch <br /> en eth L Wlmer '*MS=Matrix Spike, MSD=MS Duplicate, RPD=Relative%Difference <br /> Pr t Manager <br /> 5111031 TTT <4> <br />