Laserfiche WebLink
' Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> Sequoia 404 N Wtget Lane Walnut Creek CA 94598 (510) 989 9600 FAX(510)988 9673 <br /> Analytical 819 Straker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916)921 0100 <br /> eraghty & Miller, Inc Client Project ID Chevron #9-4275 <br /> 050 Marina Way South Matrix Solid <br /> ichmond, CA 94804 <br /> Attention Cynthia Hilton OC Sample Group 6111101-124 Reported Dec 12, 1996 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> QC Batch# SP112796 SPI12796 SPI12796 SP112796 <br /> 8020EXA 8020EXA 8020EXA 8020EXA <br /> Analy Method EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Prep Method EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> ' <br /> Analyst D Newcomb D Newcomb D Newcomb D Newcomb <br /> MS/MSD # 6111642 6111642 6111642 6111642 <br /> Sample Conc ND ND N D ND <br /> Prepared Date 11/27/96 11/27/96 11/27/96 11/27/96 <br /> Analyzed Date 11/27/96 11/27/96 11/27/96 11/27/96 <br /> strument I D # HP-4 HP-4 HP-4 HP-4 <br /> Cone Spliced 0 40 mg/kg 0 40 mg/kg 0 40 mg/kg 1 2 rng/kg <br /> Result 039 042 042 13 <br /> IMS %Recovery 98 105 105 108 <br /> ItDup Result 039 042 042 13 <br /> s D % Recov 98 105 105 108 <br /> I <br /> RPD 00 00 00 00 <br /> RPD Limit 0-25 0-25 0-25 025 <br /> LCS # 4LCS112796 4LCS112796 4LCS112796 4LCS112796 <br /> Prepared Date 11/27/96 11/27/96 11/27/96 11/27/96 <br /> Analyzed Date 11/27/96 11/27/96 11/27/96 11/27/96 <br /> nstrument I D # HP-4 HP-4 HP-4 HP 4 <br /> ' Conc Spiked 20lig/L 20ug/L 20Ng/L 60,ug/L <br /> LCS Result 17 18 18 56 <br /> LCS % Recov 85 90 90 93 <br /> LCS 60-140 60-140 60-140 60140 <br /> Control Limits <br /> Please Dote <br /> The LCS is a control sample of known,interferent free matrix that 1s analyzed using the same reagents, <br /> U01A 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 /> -thly1C a 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 /> Melissa A Brewer MS=Matrix Spike,MSD=MS Duplicate, RPD=Relative% Difference <br /> lient Services Representative <br /> 6111101 GER <8> <br />