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tiWM: 07 <br /> — <br /> MI <br /> a <br /> - <br /> s <br /> A-1 <br /> 3.3 Analytical Quality Assurance <br /> In addition to routine calibration of the analytical instruments with standards and blanks, the analyst <br /> is required to run duplicates and spikes on 10 percent of the analyses to insure an added measure of <br /> precision and accuracy. Accuracy is also verified through the following: <br /> 1. EPA and State certification programs. <br /> 2. Participation in an interlaboratory or'raund-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 titrimetric methods. <br /> Volatile organics may be determined through either purge and trap or liquid-liquid <br /> extraction methods. <br /> 3.4 Miscellaneous Checks or Accuraag <br /> Where trace analysis is involved,puny of the Lolvents,reagents,and gases employed is of great concern <br /> The laboratory maintains a service coatracl on all major instrumentation-,gas chromatograph,atomic <br /> absorption, ion chromatography, and total organic carbon analyzers are all serviced and maintained <br /> regularly. <br /> The above progr--r i is more than sufficient for most needs. Additional quality assurance,such as spikes <br /> and duplicates on all analyses,will be provided if requested. <br /> r1 <br /> f <br /> s : <br /> rf <br />