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Section No. 10.0 <br /> Revision No. 6 <br /> Date 611188 <br /> Page 21 <br /> 10.0 PERFORMANCE AND SYSTEM AUDIT <br /> At Canonie Environmental Services laboratory there are two types of audits <br /> performed. Performance audits to determine the accuracy of the measurement <br /> system, and the system audits to determine the appropriateness of the <br /> methodology chosen. <br /> As part of an ongoing quality assessment program at the laboratory, external <br /> performance audit samples are routinely analyzed for potable and non-potable <br /> water parameters. The performance audit samples are issued by New York State <br /> Department of Health (potable and non-potable) and by USEPA (HS - Hater Supply <br /> !'.. and WP - Hater Pollution). Essentially, a set consisting of either the <br /> potable and HS or the non-potable and HP are sent to the laboratory on <br /> alternate quarters during the calendar year. <br /> Internal performance audit consists of reviewing control charts, method <br /> detection limits, and precision and accuracy data for each analytical <br /> parameter performed at the laboratory. As required by a specific project, <br /> scheduled participation in any other agency performance evaluation study may <br /> be undertaken. <br /> Once a quarter, internal system audits are performed by an audit team composed <br /> of the laboratory Director and Quality Assurance officer. This audit consists <br /> of notebook checks for content and timeliness, assuring that appropriate SOPs <br /> are followed and that the SOPS are kept current with any changes of <br /> instrumentation or technique, and evaluation of all required documentation. <br /> Canonise__:,;-!' <br />