ARCHIVED REPORTS XR0000828 - Laserfiche WebLink

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44 • The water sample is collected, labeled, and handled according to the Quality Assurance Plan Water generated during the monitoring event is disposed of accruing to regulatory accepted method pertaining to the site UALITY ASSURANCE PLAN Procedures to provide data quality should be established and documented so that conditions adverse to quality, such as deficiencies, deviations, nonconforments, defective material, services, and/or equipment, can be promptly identified and corrected General Sample Collection and Handling Procedures Proper collection and handling are essential to ensure the quality of a sample Each sample as collected in a suitable container, preserved correctly for the intended analysis, and stored prior to analysis for no longer than the maximum allowable holding time Details on the procedures for collection and handling of samples used on this project can be found in this section Soil and Water Sample LabeIM2 and Preservation Label information includes a unique sample identification number, fob identification number, date, and time After labeling all soil and water samples are placed an a ZaplocOD type bag and placed an an ace chest cooled to approximately 4° Celsius Upon arnvang at Stratus` office the samples are transferred to a locked refrigerator cooled to approximately 4° Celsius Chemical preservation as controlled by the required analysis and as noted on the chain-of-custody form Trap blanks supplied by the laboratory accompany the groundwater sample containers and groundwater samples Upon recovery, the sample container is sealed to minimize the potential of volatilization and cross-contamination prior to chemical analysis Soil sampling tubes are typically closed at each end with Teflon® sheeting and plastic caps The sample is then placed an a Ziplocs type bag and sealed The sample is labeled and refiragerated at approximately 4° Celsius for delivery, under strict chain-of-custody, to the analytical laboratory Sample Identification and Chain-of-Custodv Procedures Sample identification and chain-of-custody procedures document sample possession from the time of collection to ultimate disposal Each sample container submitted for analysis has a label affixed to identify the fob number, sampler, date and time of sample collection, and a sample number unique to that sample This information, an addition to a description of the sample, field measurements made, sampling methodology, names of on-sate personnel, and any other pertinent field observations, as recorded on the borehole log or an the field records The samples are analyzed by a California-certified Iaboratory . A chain-of-custody form as used to record possession of the sample from time of collection to its arrival at the laboratory When the samples are shipped, the person an custody of them relinquishes the samples by signing the chain-of-custody foam and Page 2