Laserfiche WebLink
,, <br /> S,. <br /> U14E ASSESWwT L=K pLAM <br /> Shell Station 420 W. KettLeman Lane <br /> Lodi, California <br /> Aegis Project me. 89-013 <br /> page 14 <br /> A chain--of-custody form will be used to record possession of the <br /> sample from time of collection to its arr;val at the laboratory. <br /> When the samples are shipped, the person in custody of them will <br /> relinquish the samples by signing the chain-of-custody form and <br /> noting the time. The sample-control officer at the laboratory <br /> will verify sample integrity and confirm that it was collected in <br /> the proper container, preserved correctly, and there is an <br /> adequate volume for analysis. <br /> If these conditions are met., the sample will be assigned a unique <br /> log number for identification throughout analysis and reporting. <br /> The log number will be recorded on the chain-of-custody form and <br /> in the legally-required log book maintained by the laboratory in <br /> the laboratory. The sample description, date received, client <br /> name and any other relevant information will also be recorded. Is <br /> -� 4.4.3_ Prnalvtical Ouslit �,ssuranae <br /> In addition to routine calibration of the analytical instru <br /> ' with standards and blanks, the analyst is re melts <br /> ! cates and spikes on 1O .percent of the <br /> .:analyseslto�ins run dupli- <br /> M.�,: measure of precision and accurac us <br /> an added <br /> through the following: y• Accuracy is als�. �erified <br /> 1. U•S. Environmental Protection Agency (EPA) and State <br /> j certification programs. <br /> f 2. Participa <br /> tion in an interlaboratory or "round-robin <br /> L assurance program. " quality <br /> 3. Verification of results with�( h an alternative method. For <br /> i example, calcium may be determined by atomic absorption, ion <br /> chromatography, or titrimetric methods. Volatile organics <br /> i r may be determined through either purge and trap or liquid- <br /> liquid extraction methods. <br /> 4.4.4 Misc®llaneous Checks of Accurac <br /> I Where trace analysis is involved, <br /> - reagents and gases employed is of purity of the solvents, <br /> ator <br /> maintains a service contract on all g majorearoinstrumentationoncern. The �rgas <br /> f <br /> chromatograph, atomic absorption, ion chromatography, and- total__— -- <br /> _organic-carbon-analyzers-are all-"serviced and "maintained <br /> a regularly. <br /> The above program is more than sufficient far. most needs. <br /> i ; J Additional quality assurance such as s <br /> r analyses, :will be pikes and duplicates' on ,all <br /> provided if requested. <br />