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a 10 2 eV lamp calibrated to benzene for direct reading in parts per million (ppm) The <br /> sample-jar lid will be opened and the hNu probe immediately placed within the head space <br />' of the jar The highest observed reading will be recorded <br /> I 2.0 ANALYTICAL PROCEDIIRES <br /> All soil samples submitted to the laboratory will be analyzed by EPA Method 8015 for <br /> total petroleum hydrocarbons (TPH). Those samples containing more than 100 parts per <br />' million TPH will be analyzed for benzene, toluene, ethylbenzene, and xylenes by EPA <br /> Method 8020 <br /> ` 3.0 QUALITY ASS RANCE PLAN <br /> This item describes the field and analytical procedures to be followed throughout the <br />' investigation <br />' 3.1 General Sample Collection and Handline Procedures <br /> Proper collection and handling are essential to ensure the quality of a sample Each <br /> sample will be collected in a suitable container, preserved correctly for the intended <br />' analysis, and stored prior to analysis for no longer than the maximum allowable holding <br /> time Details on the procedure for collection and handling of soil and ground-water <br /> samples to be used on this project can be found in Section 1 0 <br /> 2 Sample Identification andChain-of-Custody Procedures <br /> Sample identification and chain-of-custody procedures ensure sample integrity and <br /> document sample possession from the time of collection to its ultimate disposal Each <br /> Isample container submitted for analysis will have a label affixed to identify the job <br /> number, sampler, date and time of sample collection, and a sample number unique to that <br />' sample This information, in addition to a description of the sample, field <br /> measurements made, sampling methodology, names of on-site personnel, and any other <br /> pertinent field observations will be recorded on the borehole log or in the field <br />' records All samples will be analyzed by a California State Certified Laboratory <br />' A chain-of-custody form will be used to record possession of the sample from time of <br /> collection to its arrival at the laboratory When the samples are shipped, the person <br /> in custody of them will relinquish the samples by signing the chain-of-custody form and <br />' noting the time of shipment The sample-control officer will verify sample integrity <br /> and confirm that it was collected in the proper container, preserved correctly, and that <br /> there is an adequate volume for analysis <br /> 1 <br /> 1 <br />