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Effil <br /> { tom. :x:_rg <br /> .. .m ',..,�` -.���` <br /> ; Q ME �` ,"""z„ 'u,'�_a.;J..L'St" .-b 'Fi S <br /> APPENDIX D <br /> Methad�,Analytle-1 Procedures, <br /> Qualley Auuranu Plan,and <br /> Site Safety Plan <br /> Page D4 <br /> " ! ;surance <br /> In addition to rOutiue 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 /> i precision and accuracy. Accuracy is also verified through the following: <br /> 1. EPA,and State certification programs. <br /> ¢_e <br /> 2. Participation in an interlaboratory or"round-robin"quality assurance program. <br /> it <br /> 3. Verification of results with on alternative method. For example,calcium may be determined <br /> by atomi;absorption,ion chromatography,or titrimetric methods. Volatile organics may be <br /> { determined through either <br /> $ purge and trap or liquid-,quid extraction methods. <br /> [.i <br /> 4. Inclusion of a trip blank,(consisting of deionized or distilled water in a sample bottle that is <br /> prepared in a manner identical to the preparation of all other sample bottles for that analytical <br /> technique)in each shipment of sample bottles to a sampling location. <br /> t� <br /> 4 i !i ne us h k f Ac r <br /> i To insure that proper sampling procedures are followed in the field,one field blank will be collected <br /> t.l for every ten ground water samples collected in the field. Procedures for collection of the field <br /> blank will be identical to these for collection of the ground water samples, with the exception that <br /> t3 deionized (or distilled) water will be poured into a laboratory-cleaned, teflon bailer and then <br /> " discharged from the bailer to the appropriate sample bottle(s). <br /> j.x 2 I n <br /> k t urn <br /> Where trace analysis is involved, purity of the solvents, reagents, and gasas employed is of great <br /> concern. The laboratory maintains a service contract on all major instrumentation: gas <br /> chromatographs,atomic absorption, ion chromatography,and total organic carbon analyzers are all <br /> f` <br /> serviced and maintained regularly. <br /> The above program is more than sufficient for most needs. Additional quality assurance, such as <br /> spikes and duplicates on a!1 analyses, will be provided if requested. <br />