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RWI �. % 2: _ <br /> x L <br /> REZVVED <br /> SEQUOIA, Analytical Laboratory <br /> 2549 Middlefield Rood <br /> RedW00(J ON,CA 94063 • (415)364.9222 <br /> QUALITY ASSURANCE/QUALITY CONTROL SUMMARY <br /> Our QA/GC program is deeigned to ensure the integrity of <br /> analytical results, in accordance with guidelines established <br /> by EPA and the California Department of Health Services. The <br /> following detailed <br /> Analv ical6Oualit2eControl manual s our QA/QC sismavailableouponrrequest. <br /> Sample Collection - - - -- - <br /> ■ Laboratory personnel use appropriate sampling devices <br /> to collect samples, which are field preserved using <br /> prescribed preservatives- identifiedandtransportation <br /> requirements, if any, <br /> are" When samples are collected by the client, sample <br /> containers are made available, free of charge, <br /> upon request.roceduresCeis also available <br /> necessarypreservatives, and <br /> samplingngp <br /> sample transport considerations. <br /> Sample Containers and Preservatives <br /> w Containers are purchased in large lots from commercial <br /> sources and are equivalent to those listed in 40 CPR <br /> Part 136. <br /> * Preservatives are prepared and added to the bottles in <br /> a designated area, clearly marked, and stored in an <br /> organized manner: Bottles for organic analyses are <br /> r purchased only from suppliers who certifythat <br /> containers were cleaned using EPA protocols. <br /> chain of Custody <br /> Samples collected by laboratory personnel are <br /> accompanied by a chain of custody form which includes <br /> date and time of collection, bottles and preservatives <br /> used in the field, and sample description. <br /> Chain of custody forms for samples collected by <br /> clients are signed and copied upon receipt. <br /> Sample Control <br /> • <br /> Samples received by the laboratory are immediately <br /> e log-in <br /> informationtis recorded he einto malarea. <br /> bound master notebook. <br />