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Geosynte& consultants 7. CORRECTIVE ACTION This section identifies the corrective actions necessary to address field and laboratory data validation/verification problems. In general, corrective actions will be initiated whenever method performance criteria suggest that QA/QC specifications have not been met. Corrective actions will begin with identifying the source of the problem. Potential problem sources include failure to adhere to method procedures,improper data reduction, equipment malfunctions, or systemic contamination. The first level of responsibility for identifying problems and initiating corrective action lies with the analyst/field personnel. The second level of responsibility lies with the individual assigned to reviewing the data. Corrective actions may include more intensive staff training, equipment repair combined with an enhanced preventative maintenance program (if appropriate), or removal of the source of systemic contamination. The corrective and/or preventive actions, if any, will be fully documented in the interim and final reports. If QA/QC specifications were not met,the samples in question may need to be recollected and/or re-analyzed. 7.1 Field Corrective Action Problems that require corrective action may be encountered in the field. Any finding that requires corrective action must be documented to the Program Managers. The QA Manager will confirm that corrective and/or preventive actions have been implemented and that the problem has been resolved. If more easily addressed problems are encountered in the field, such problems will be addressed and the corrective action noted in the appropriate field memoranda. If an error is made on an accountable document assigned to one individual, that individual will make all corrections by crossing a line through the error, entering the correct information, and initialing and dating the correction. The erroneous information will not be obliterated. The person who made the entry will correct any subsequent error discovered on an accountable document. 7.2 Laboratory Corrective Action The laboratory will notify the QA Manager if a transportation problem (e.g., broken sample containers or nonconforming temperature blanks) has occurred. The laboratory QA/QC manager, in consultation with the QA Manager, is responsible for implementing corrective actions in the laboratory (from sample receipt to final data Quality Assurance Project Plan 13 30 April 2025