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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364-%00 FAX(415) 364-9233 <br /> ' 1900 Bates Avenue Suite L Concord CA 94520 (510) 686-9600 FAX(510)686-9689 <br /> Analytical 819 Straker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> CWh <br /> Clerrs jest <br /> RESNA i Pro ID 150107 01, Manteca Unified <br /> 1710 Main Street Matnx Solid <br /> Escalon, CA 95320 <br /> tAttention Grey Stahl Work Order# 9412641-01-5 Reported Jan 5, 1995 <br /> QUALITY CONTROL DATA REPORT <br /> ' Analyte: Beryllium Cadmium Chromium Nickel <br /> ' OC Batch#: ME121994601OMDA ME121994601OMDA ME1219946010MDA ME121994601OMDA <br /> Analy. Method: EPA 6010 EPA 6010 EPA 6010 EPA 6010 <br /> Prep. Method: EPA 3050 EPA 3050 EPA 3050 EPA 3050 <br /> ' Analyst: S O'Donnell S O'Donnell S O'Donnell S O'Donnell <br /> MS/MSD#: 941264101 941264101 941264101 941264101 <br /> Sample Conc: N D N D 13 12 <br /> Prepared Date: 12/19/94 12/19/94 12/19/94 12/19/94 <br /> Analyzed Date: 12/20/94 12/20/94 12/20/94 12/20/94 <br /> Instrument LD#: MTJA2 MTJA2 MTJA2 MTJA2 <br /> Conc. Spiked: 100 mg/Kg 100 mg/Kg 100 mg/Kg 100 mg/Kg <br /> ' Result: 100 100 110 110 <br /> MS%Recovery: 100 100 97 98 <br /> Dup.Result: 98 99 110 110 <br /> MSD%Recov.: 98 99 97 98 <br /> ' RPD: 2.0 10 00 00 <br /> RPD Limit: 0-30 0.30 0-30 0-30 <br /> %pec}�xaa 4v0 O~ SSO 06 +MiO{iQ�C .29i.4CGS++'¢ Yry3 4A ,^w44 <br /> w iM}rS C AbQ. ,µt0`i^"'^'Y �x+%�3 ryi A4ixtiv r�ri-k"is <br /> '>i�3W.{M''x%WhWr}�CiNAPh03d�'n ��� <br /> ' LCS#: BLK121994 BLK121994 BLK121994 BLK121994 <br /> ' Prepared Date: 12/19/94 12/19/94 12/19/94 12/19/94 <br /> Analyzed Date: 12/20/04 12/20/94 12/20/94 12/20/94 <br /> Instrument I.D.#:- MTJA2 MTJA2 MTJA2 MTJA2 <br /> Conc.Spiked:- 1o0 mg/Kg 100 mg/Kg 100 mg/Kg 100 mg/Kg <br /> ' LCS Result: 96 97 98 96 <br /> LCS% Recov.: 96 97 98 96 <br /> LCS 75-125 75-125 75-125 75-125 <br /> ' Control Limits <br /> Please Note <br /> The LCS is a control sample of known,Interferent-tree matrix that 1s analyzed using the same reagents, <br /> SEQUOIA ANALYTICAL preparation,and artatyticai mettlods employed for the sarnpla& The matrix spike is an aliquot of sample <br /> fortified with known quantrtiss of apedtic compounds and subjected to the arthro analytical procedure it <br /> to neoowry of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> interWortoe,the LCS recovery is to be used to w9date the batch <br /> Vickie Tagus Clark <br /> Project Manager *'MS-Mstrix Spike,M80-MS Duplicate,RPD-Reh*m%Difference 9412541 WAT c2> <br />