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a't ' VV <br /> .. <br /> - � G <br /> A chain-of-custody card (Figure 3) will be used to record <br /> possession of the sample from time of collection to its arrival at <br /> the laboratory. The sample control officer at the laboratory will, <br /> verify sample integrity and confirm that it was collected in the <br /> proper container, preserved correctly, and that there is an adequate <br /> volume for analysis. If these conditions are met, the sample will be <br /> assigned a unique log number for identification throughout analysis <br /> and reporting. The log number will be recorded on the chain-of- <br /> custody carr] and in the legally required I.og book Eureka maintains at <br /> the laboratory. The sample description, date received, client's <br /> name, and any other relevant information will also be recorded. <br /> Laboratory Analytical Quality Assurance <br /> H' In addition to routine calibration of the instruments with <br /> standards and blanks, the analyst is required to run duplicates and <br /> spikes on 10 percent of the analyses to ensure an added measure of <br /> precision and accuracy. Accuracy is also verified through the <br /> following: <br /> r � <br /> 1. Certification by California Department of Health Services. <br /> 2. Participation in interlaboratory or round-robin programs. <br /> is <br /> 3. "Blind" samples are submitted by the laboratory's quality <br /> assurance officer on a weekly basis. These are prepared from <br /> National Bureau of Standards or U.S. Environmental Protection <br /> Agency reference standards. <br /> safety Program <br /> 4 � It is important that the on-site safety program be designed to <br /> protect the worker from direct skin contact, inhalation, or ingestion <br /> of potentially hazardous materials that may be encountered at the <br /> ► site. It should also familiarize the worker with appropriate first <br /> aid procedures in the event of a harmful. exposure. In order to do <br /> this, the potentially hazardous properties of the materials and their <br /> toxic effects must be understood. Brown and Caldwell has reviewed ' <br /> t; the results of prior chemical analyses performed on samples obtained <br /> from similar sites. This information was used to develop the <br /> following site safety plan for this „Tori:. <br /> s <br /> Personnel Protection <br /> Y; <br /> The personnel protection plan for this project is designed to <br /> 6,; _ prevent sampling personnel from exposure to petroleum hydrocarbons <br /> which might be encountered on site. <br /> 4 <br /> a <br />