Laserfiche WebLink
Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364-9233 <br /> 1900 Bates Avenue Suite L Concord,CA 94520 (510) 686 9600 FAX(510)686 9689 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921-0100 <br /> FRESNA Client Project ID 150087 01,Tracy Public Schools u <br /> 1710 Main Street Matrix Solid <br /> Escalon, CA 95320 <br /> ' Attention John Lane CSC Sample Group 4EA2801-3 Reported May 26, 1994' <br /> ' QUALITY CONTROL DATA REPORT <br /> ' ANALYTE Beryllium Cadmium Chromium Nickel <br /> Method: EPA 6010 EPA 6010 EPA 6010 EPA 6010 <br /> ' Analyst: S O'Donnell S O'Donnell S O'Donnell S ODonnell <br /> MS/MSD <br /> Batch#- 4E47201 4E47201 4E47201 41=47201 <br /> Date Prepared: 5/19/94 5/19/94 5/19/94 5/19/94 <br /> Date Analyzed- 5/20/94 5/20/94 5/20/94 5/20/94 <br /> ' Instrument I.D # MTJA-2 MTJA-2 MTJA-2 MTJA-2 <br /> Conc Spiked: 100 mg/kg 100 mg/kg 100 mg/kg 100 mg/kg <br /> Matrix Spike <br /> % Recovery 91 87 90 160 <br /> Matrix Spike <br /> ' Duplicate% <br /> Recovery: 91 86 70 60 <br /> Relative% <br /> ' Difference: 00 12 25 91 <br /> LCS Batch# BLK051994 BLK051994 BLK051994 BLK051994 <br /> ' Date Prepared 5/19/94 5/19/94 5/19/94 5/19/94 <br /> Date Analyzed: 5/20/94 5/20/94 5/20/94 5/20/94 <br /> Instrument I D.#: MTJA-2 MTJA-2 MTJA-2 MTJA-2 <br /> ' LCS% <br /> Recovery: 95 95 95 100 <br /> ' %Recovery <br /> Control Limits: 75-125 75-125 75-125 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 /> EQUOIA ANALYTICAL preparation,and analytical methods employed for the samples The matrix spike is an aliquot of sample <br /> i 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 /> Vickie Tague Clark <br /> Project Manager 4EA2801 WAT c3> <br />