Laserfiche WebLink
1 <br /> 5. Orange County Environmental Management Agency approval <br /> to analyze for metals, inorganics, halogenated pesti- <br /> cides and PCBs. <br /> J n. Submittal of applications and analysis of check samples <br /> for California DO11S certification for complete chemical <br /> analysis of hazardous wastes. <br /> C. Brown and Caldwell Interlaboratory Comparisons <br /> The exchange of samples between laboratories is a widely <br /> recognized quality assurance measure which provides <br /> information about procedural errors, contamination unique <br /> to a particular laboratory, and interlaboratory precision <br /> and accuracy. Since the Analytical Services Division <br /> consists of two independently operated but similarly <br /> equipped laboratories, interlaboratory studies may be <br /> carried out with particular convenience. In this way one <br /> laboratory can serve as the external quality assurance unit <br /> for the other. <br /> The Sample Control officer of each laboratory is in charge <br /> 1 of splitting samples for such comparative. purposes. Except <br /> for the exchange of standard solutions described earlier, <br /> the interlaboratory exchange program is usually reserved <br /> for major projects with special QA/QC requirements. <br /> D. Round Robin Studies <br /> :he Brown and Caldwell laboratories frequently par; '..7ipate <br /> in studies of methods or performance among groups of well- <br /> qualified environmental laboratories. Samples for such <br /> studies have been provided by Los Angeles County Sanitation <br /> Districts, Orange County Sanitation Districts, Electric <br /> Power Research institute, and other public agencies and <br /> trade associations. <br /> t <br /> i <br /> r ' <br /> VII-2 <br />