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The following data validation summary report covers environmental soil samples and associated field quality control (QC) samples collected from Camp Stanley Storage Activity (CSSA) during the period January 10 and 11, 2000 for the Area of Concern (AOC) investigation. The samples were analyzed for a reduced list of volatile organic compounds (VOCs), which included 1,1-dichloroethene, cis-1,2-dichloroethene, trans-1,2-dichloroethene, tetrachloroethene and trichloroethene. The samples were assigned to the following laboratory Sample Delivery Groups (SDGs):
4452 4453 4454 4455
Field quality control samples collected were trip blanks; equipment blanks; matrix spike/matrix spike duplicates (MS/MSD); and field duplicates. All field quality control samples were analyzed for VOCs.
All samples were collected by Parsons Engineering Science (Parsons ES). All analyses were performed by O�Brien & Gere Laboratories, Inc. following procedures outlined in the AFCEE QAPP, version 3.0.
The data submitted by the laboratory has been reviewed and validated following the guidelines outlined in the AFCEE QAPP, version 3.0. Information reviewed in the data packages include sample results; the summary of laboratory quality control results; case narrative; raw data; and chain-of-custody forms. The analyses and findings presented in this report are based on the reviewed information, and whether the guidelines in the AFCEE QAPP were met.
These SDGs consisted of fifty-nine (59) samples, including thirty-eight (38) confirmation environmental soil samples, six field duplicate soil samples, four matrix spike/matrix spike duplicate sets, three equipment blank samples and four trip blank samples. The samples were collected on January 13, 2000 and were analyzed for volatile organic compounds (VOCs).
The VOC analyses were performed using United States Environmental Protection Agency (USEPA) SW846 Method 8260B. Except where indicated in this report, all samples for these SDGs were analyzed following the procedures outlined in the AFCEE QAPP. All samples collected were prepared and analyzed within the holding times required by the method.
Accuracy was evaluated using the %R results for the MS/MSD samples; LCS samples; and surrogate spikes. Samples AOC38-SS30 (0-0.5), AOC38-SS58 (0.5-1), AOC39-SS05 (0-0.5) and AOC39-SS02 (0-0.5) were used as the MS/MSD samples in these SDGs.
All MSMSD, LCS and surrogate %Rs were within acceptance criteria.
Precision was evaluated using the Relative Percent Difference (RPD) results obtained from MS/MSD results; and the field duplicate analyte values Samples AOC38-SS30 (0-0.5), AOC38-SS58 (0.5-1), AOC39-SS05 (0-0.5) and AOC39-SS02 (0-0.5) were used as the MS/MSD samples in these SDGs. Sample AOC38-SS106 (0.5-1) was the field duplicate of sample AOC38-SS41 (0.5-1). Sample AOC38-SS103 (0.5-1) was the field duplicate of sample AOC38-SS30 (0.5-1). Sample AOC38-SS104 (0.5-1.5) was the field duplicate of sample AOC38-SS44 (0.5-1.5). Sample AOC38-SS105 (0.5-1) was the field duplicate of sample AOC38-SS58 (0.5-1). Sample AOC39-SS100 (0-0.5) was the field duplicate of sample AOC39-SS05 (0-0.5). Sample AOC39-SS101 (1-1.5) was the field duplicate of sample AOC39-SS01 (1-1.5).
All MS/MSD and field duplicate RPDs were within acceptance criteria.
Completeness has been evaluated by comparing the total number of samples collected with the total number of samples with valid analytical data.
All results for the samples in these SDGs were usable. The completeness for these SDGs is 100.0% compared to the minimum acceptance limit of 90%.
Representativeness expresses the degree to which sample data accurately and precisely represents actual site conditions. Representativeness has been evaluated by:
| Comparing the chain-of-custody procedures to those described in the AFCEE QAPP; | |
| Comparing actual analytical procedures to those described in the AFCEE QAPP; | |
| Evaluating holding times; and | |
| Examining field and laboratory blanks for cross contamination of samples during collection or analysis. |
All samples in these SDGs were analyzed following the chain-of-custody (COC) and analytical procedures described in the AFCEE QAPP with the exceptions noted in the introduction of this report. All samples were prepared and analyzed within the holding time required by the method.
| All instrument performance check criteria were met. | |
| All initial calibration criteria were met. | |
| All continuing calibration criteria were met. | |
| All second source verification criteria were met. | |
| All internal standard criteria were met. |
There were five method blanks, three equipment blanks and four trip blanks associated with the VOC analyses in these SDGs. All blanks were free of VOCs above the RL.