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AEGIS ENVIRONMENTAL, INC. <br /> STANDARD OPERATING PROCEDURES <br /> RE: LABORATORY ANALYTICAL QUALITY ASSURANCE AND CONTROL <br /> SOP-5 <br /> In addition to routine calibration of the analytical instruments with standards and clanks, <br /> the laboratory analyst is required to run duplicates and spikes on 10 percent of the i <br /> analyses to insure an added measure of precision and accuracy. Accuracy is also <br /> verified through the following: <br /> 1. J.S. Environmental Protection Agency (EPA) and State certification programs, <br /> } 2. Participation in an inter-laboratory or "round-robin" quality assurance program; <br /> 3• Verification of results with an alternative method. For example, calcium may be <br /> determined by atomic absorption, ion chromatography, or'btrimetr is methods. <br /> t E Volatile organic compounds may be determined through either purge and trap or <br /> i liquid-liquid extraction methods; and, <br /> 4. Miscellaneous checks of.equipment accuracy. Where trace analysis is involved, <br /> purity of the solvents, reagents and gases employed is of great concern. The <br /> `.. laboratory mal.stains a service contract on all major instrumentation, n"'fudin <br /> g gas <br /> chromatograph, atomic absorption, ion chromatography and total organic carbon <br /> i analyzers. Each of these instruments are serviced and maintained regularly. <br /> 3 <br /> E <br /> 1 <br /> ;.TTACHMENT/5CP•51June 1990 <br />