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6 <br /> A rchain-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 card and in the legally required log book Eureka maintains ut <br /> the laboratory. The sample description, date received, client's <br /> name, and any other relevant information will also be recorded. <br /> Laboratory Anal tical Quality Assurance <br /> In addition to routine calibration of the instruments with <br /> standards and blanks, the analyst is required to run duplicates and <br /> spikes on ZO percent of the analyses to er:pure an added measure of <br /> precision and accuracy. Accuracy is also verified through the <br /> following: <br /> 1. Certification by California Department of IIealt;i Services. <br /> 2. Participation in interlaboratory or round-robin programs. <br /> 3. "Blind" sanples ate submitted by the <br /> 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 /> w <br /> s safety Fro ram . <br /> c <br /> It is important that tae on-site safety program be designed to <br /> protect the worker from direct slain contact, inhalation, or ingestion <br /> of potentially hazardous materials that may be encountered at the <br /> site. xt. should also faiciliarize the worker with appropriate first <br /> aid procedures in the evsnt 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 /> 3 + ° 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. work. <br /> `j Personnel Protection <br /> C The personnel protection plan for this project is designed to <br /> i prevent sampling personnel from exposure to petroleum hydrocarbons <br /> " which might be encountered on site. <br /> i . <br /> r <br /> t <br />