Laserfiche WebLink
Sequoia 680 Chesapeake Dnve Redwood City CA 94063 (415) 364 9600 FAX (415) 364 9233 <br /> (1) 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 /> Pacific Environmental Group Client Project ID 310-097 1B / #0123, Tracy, CA <br /> 2025 Gateway Place, Suite 440 Matrix SOLID <br /> San Jose, CA 95110 <br /> Attention Tim Rlpp Work Order # 9612053 01 Reported Dec 6, 1996 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> QC Batch# GC120396BTEXD(B GC120395BTEXEXB GC120396BTEXEXB GC120396BTEXEXB <br /> Analy Method EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Prep Method EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst A.Porter A- Porter A Porter A Porter <br /> MS/MSD# 9611D6305 9611D6305 9611D6305 96106305 <br /> Sample Conc N D N D N D N D <br /> Prepared Date 12/3/96 12/3/96 12/3/96 12/3/96 <br /> Analyzed Date. 12/3/96 12/3/96 12/3/96 12/3/96 <br /> Instrument I D # GCHP7 GCHP7 GCHP7 GCHP7 <br /> Conc Spiked 0 20 mg/Kg 0 20 mg/Kg 0 20 mg/Kg 0 60 mg/Kg <br /> Result 018 019 019 058 <br /> MS % Recovery 90 95 95 97 <br /> Dup Result. 017 018 019 057 <br /> .MSD % Recov .. 85 90 95 95 <br /> RPD 57 54 00 17 <br /> RPD Limit 0-25 0.25 0-25 0-25 <br /> LCS #. BLK120396 BLK120396 BLK120396 BLK120396 <br /> Prepared Date: 12/3/96 12/3/96 12/3/96 12/3/96 <br /> Analyzed Date- 12/3/96 12/3/96 12/3/96 12/3/96 <br /> Instrument I D.#: GCHP7 GCHP7 GCHP7 GCHP7 <br /> Conc. Spiked a 20 mg/Kg 0 20 mg/Kg 0 20 mg/Kg 0 60 mg/Kg <br /> LCS Result 021 0 22 022 067 <br /> LCS % Recov 105 110 110 112 <br /> 60-140 60-140 60-140 60-140 <br /> LCS 70-134 70-130 70-130 70.130 <br /> Control Limits <br /> Please Note <br /> The LCS is a control sample of known, interferent-free matrix that is analyzed using the same reagents, <br /> . SEQUOIA ANALYTICAL 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 R <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 /> Tod Granicher <br /> Project Manager **MS=Matrix Spike, MSD=MS Duplicate, RPD=Relative% Difference 9612053 PPP <I> <br />