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0 <br />1 All equipment will be checked daily and replaced if necessary by a <br />designated member of the field crew. Instrument manuals, including <br />5. QUALITY CONTROL AND QUALITY ASSURANCE PLAN <br />field. <br />The purpose of this plan is to describe field and laboratory quality control <br />1 <br />procedures that will be performed throughout this investigation. <br />The quality assurance objective for this investigation is to provide <br />representative data that are known to be of acceptable quality and is <br />statistically sound. The following field and laboratory procedures will be <br />implemented to ensure that this objective is met. <br />analytical laboratory. To ensure uniform treatment of all samples <br />5.1 Field Equipment Calibration <br />To ensure instrument reliability and consistency, the pH meter, electrical <br />conductivity meter, and photoionization detector will be calibrated each day <br />before beginning work. Calibration results and instrument repairs will be <br />recorded in a field notebook. <br />1 All equipment will be checked daily and replaced if necessary by a <br />' 5.2.1 Travel blanks <br />When sampling groundwater, travel blanks will be used to detect the <br />introduction of contaminants during transportation from the field to the <br />' laboratory. The travel blanks will be assembled by members of the field <br />staff at the TES laboratory. They will then be taken to the field and will <br />1 3542a/BAV102 25 <br />designated member of the field crew. Instrument manuals, including <br />calibration and repair information, will accompany each instrument into the <br />field. <br />5.2 Field Quality Control Samples <br />To ensure the quality of data collected in the field, and in accordance with <br />EPA SW duplicates 108 <br />-846, of of soil and water samples will be <br />collected and analyzed by Eureka Laboratories. One field and one travel <br />blank will be provided with every shipment of groundwater samples to the <br />analytical laboratory. To ensure uniform treatment of all samples <br />submitted, the identity of the field quality control samples will be unknown <br />by the laboratory. Table 3 summarizes field quality control sample measures <br />to be performed during this site investigation. <br />' 5.2.1 Travel blanks <br />When sampling groundwater, travel blanks will be used to detect the <br />introduction of contaminants during transportation from the field to the <br />' laboratory. The travel blanks will be assembled by members of the field <br />staff at the TES laboratory. They will then be taken to the field and will <br />1 3542a/BAV102 25 <br />