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CA AR-NG Field Quality Assurance Project Plan 10.0 DATA MANAGEMENT This section presents general guidance for field data recording,validation,reporting,and assessment;a more detailed description of procedures and requirements is included in the QAPP and the Data Exchange Protocol(attachment in the analytical QAPP). 10.1 Data Recording and Validation 10.1.1 Field Data 10.1.1.1 Field data will include field logbooks,process monitoring forms,field analytical results,and spatial data(e.g.,survey results and boring logs). A bound,numbered field notebook will be used to record field information.A unique field identification number will be assigned to each sample throughout the field effort.A corresponding laboratory identification number will be assigned and will be used to track each sample through the analytical process.For drilling locations,descriptions of the lithologies encountered and of the soil classification will be recorded on borehole logging forms.Process monitoring and performance test forms will be completed and signed by the person making the observations. 10.1.1.2 All pages of the field notebook will be signed and dated by the person entering the data.All data will be recorded in the field notebook or field data sheets using black ink only.All changes to documentation will be performed by striking out the incorrect data with a single line and initialing the dating the correction.The names and affiliations of all visitors on-site also will be noted on project progress,problems encountered,deviations from plans(with rationale),and so forth.The field sample identification number,along with sample collection location, sample collection date and time,sample identification number,required analysis,and preservation will be entered on the sample label for each container.Chain-of-custody documentation also will be completed to document the chain of possession - and track the samples throughout shipping,handling,and analysis. 10.1.1.3 Field data(i.e.,boring logs and water level measurements)will be validated through reviews of data sets to identify inconsistencies or anomalous values. Any inconsistencies discovered will be resolved immediately, if possible,by seeking clarification from those personnel responsible for data collection. All field personnel will be responsible for following the sampling and documentation procedures described in the project-specific work plan and in the QAPP to ensure that accurate and defensible data are obtained. 10.1.2 Laboratory Data 10.1.2.1 The laboratory will maintain logs(hard copy and electronic)to permanently record all data results,including sample identification numbers,analytical results,detection limits,analytical methods, and other related data.Both electronic and hard copy logs will be required as part of routine data transfer. 10.1.2.2 Laboratory personnel will assess data at the time of analysis and reporting through review of the raw data for any nonconformances to the analytical method protocols.Data validation will be performed by project quality control(QC)staff independently from the project laboratory as described in the QAPP. 10.2 Data Reporting 10.2.1 Measurement data generated during the field activities will be reported in tabular form from the computerized database to support data use and interpretation.The report formats vary depending on the field QAPP.DOC 10-1 1 May 2000