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CA ARNG Field Quality Assurance Project Plan <br />• Work performed; <br />• Sampling performed, including specifics (e.g., number of samples collected, borings drilled, wells <br />sampled, etc.); <br />• Quality control activities included; <br />• Field parameter measurements including calibration checks; <br />• Problems encountered and corrective actions taken; <br />• Next day's work schedule; and <br />• Signature of individual completing the report. <br />Sample Labels <br />9.1.9.14 A sample label will be affixed to all sample containers sent to the laboratory. This <br />identification label will be completed with the following information: <br />• Projectname and location; <br />• Sample location; <br />• Field identification number; <br />• Date and time of sample collection; <br />• Initials of sampler; <br />• Preservative used; and <br />• Analysis required. <br />9.1.9.15 After the samples have been collected and the information is entered onto the groundwater <br />sampling log, a COC record will be completed, as described below. <br />Chain -of -Custody Forms <br />9.1.9.16 Chain -of -custody procedures provide an accurate written record tracing the possession of <br />individual samples from the time of field collection through laboratory analysis. A sample is considered <br />in custody if it is: <br />• In a person's possession; <br />• In a secure area after having been in physical possession by a person; and <br />• In a designated secure area, restricted to authorized personnel. <br />field QAPP.DOC 9-17 May 2000 <br />