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Data Verification Report
for Package 32289

ITS Rework Data Verification Report
for

samples collected from

Camp Stanley Storage Activity

Boerne, Texas

Data Verifiers: Michelle Wolfe & Tammy Chang

Parsons ES

INTRODUCTION

The following data verification summary report covers environmental soil samples and associated field quality control (QC) samples collected from the Camp Stanley (for ITS rework) on March 23, 2000.  The samples in the following laboratory Sample Delivery Group (SDG) were analyzed for semivolatile organic compounds (SVOCs) and volatile organic compounds (VOCs):

Field quality control samples collected were trip blank; equipment blanks; matrix spike/matrix spike duplicates (MS/MSD); and field duplicates. During the initiation of this project, it was determined that ambient blanks were not necessary due to the absence of a source at the site. Trip blanks were analyzed for volatile organics only.  All other field quality control samples were analyzed for the same parameters as their associated samples.

All samples were collected by Parsons Engineering Science (Parsons ES).  All analyses were performed by APPL, Inc. following procedures outlined in the AFCEE QAPP, version 3.0.

EVALUATION CRITERIA

The data submitted by the laboratory has been reviewed and verified 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 guidelines in the AFCEE QAPP were met. 

SVOC SDG 32289

General

This SDG consisted of twenty-four (24) samples, including fifteen (15) confirmation environmental soil samples, three field duplicate soil samples, two sets of matrix spike/matrix spike duplicate samples and two equipment blank samples.  The samples were collected on March 23, 2000 and analyzed for semivolatile organic compounds (SVOCs).

SVOC analyses were performed using United States Environmental Protection Agency (USEPA) SW846 Method 8270C. All samples for this SDG 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

Accuracy was evaluated using the %R results for the MS/MSD samples; LCS samples; and surrogate spikes.  Samples RW-B26-SB03 (12.5-13.0�) and RW-B25-SS03 (0.0-0.5�) were used as the MS/MSD samples for this SDG.

The MS/MSD %Rs were within acceptance criteria except for as follows:

Sample RW-B26-SB03 (12.5-13.0�)

Sample RW-B25-SS03 (0.0-0.5�)

                 - The %R was compliant.

The results for the non-compliant analytes in the associated samples from the same site and with similar matrix as the MS/MSD sample were flagged �M� to indicate a matrix effect was present.

All LCS and surrogate %Rs were within acceptance criteria.

Precision

Precision was evaluated using the Relative Percent Difference (RPD) results obtained from MS/MSD results; and the field duplicate analyte values. Samples RW-B26-SB03 (12.5-13.0�) and RW-B25-SS03 (0.0-0.5�) were used as the MS/MSD samples for this SDG.  Sample RW-B26-SB02 (0.5-1.0�) FD was the field duplicate of sample RW-B26-SB02 (0.5-1.0�).  Sample RW-B26-SB03 (12.5-13.0�) FD was the field duplicate of sample RW-B26-SB03 (12.5-3.0�).  Sample RW-B25-SS03 (0.0-0.5�) FD was the field duplicate of sample RW-B25-SS03 (0.0-0.5�). 

The MS/MSD RPDs were within acceptance criteria except for as follows:

Sample RW-B25-SS03 (0.0-0.5�)

The results for the non-compliant analytes in the associated samples from site B25 with similar matrix as the MS/MSD sample were flagged �M� to indicate a matrix effect was present.

The field duplicate RPDs were within acceptance criteria.

Completeness

Completeness has been evaluated by comparing the total number of samples collected with the total number of samples with valid analytical data. 

All results were considered usable.  The completeness for this SDG is 100.0% compared to the minimum acceptance limit of 90%.

Representativeness

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 this SDG were analyzed following chain-of-custody forms (COCs) and analytical procedures described in the AFCEE QAPP. All samples were prepared and analyzed within the holding times required for the analysis.

• 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 four method blanks and one equipment blank associated with the SVOC analyses in this SDG.  The blanks were free of SVOCs above the RL.

VOC SDG 32289

General

This SDG consisted of twenty-nine (29) samples, including seventeen (17) confirmation environmental soil samples, three field duplicate soil samples, two sets of matrix spike/matrix spike duplicate samples, two equipment blank samples and three trip blank samples.  The samples were collected on March 23, 2000 and analyzed for volatile organic compounds (VOCs).

VOC analyses were performed using United States Environmental Protection Agency (USEPA) SW846 Method 8260B. All samples for this SDG 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

Accuracy was evaluated using the %R results for the MS/MSD samples; LCS samples; and surrogate spikes. Samples RW-B25-SS03 (0.0-0.5�) and RW-B08-SB02 (0.5-1.0�) were used as the MS/MSD samples for this SDG.

The MS/MSD %Rs were within acceptance criteria except for as follows:

Sample RW-B25-SS03 (0.0-0.5�)

Sample RW-B25-SS03 (0.0-0.5�) Continued

Sample RW-B08-SB02 (0.5-1.0�)

                     -  The %R was compliant.

The results for the non-compliant analytes in the associated samples from the same site as the MS/MSD samples and with similar matrix were flagged �M� to indicate a matrix effect was present.

All LCS and surrogate %Rs were within acceptance criteria.

Precision

Precision was evaluated using the Relative Percent Difference (RPD) results obtained from MS/MSD results; and the field duplicate analyte values. Samples RW-B25-SS03 (0.0-0.5�) and RW-B08-SB02 (0.5-1.0�) were used as the MS/MSD samples for this SDG. Sample RW-B26-SB02 (0.5-1.0�) FD was the field duplicate of sample RW-B26-SB02 (0.5-1.0�).  Sample RW-B25-SS03 (0.0-0.5�) FD was the field duplicate of sample RW-B25-SS03 (0.0-0.5�).  Sample RW-B08-SB02 (0.5-1.0�) FD was the field duplicate of sample RW-B08-SB02 (0.5-0.0�).

All MS/MSD RPDs were within acceptance criteria except for as follows:

Sample RW-B25-SS03 (0.0-0.5�)

Sample RW-B08-SB08 (0.5-1.0�)

The results for the non-compliant analytes in the associated samples from the same site as the MS/MSD sample and with similar matrix were flagged �M� to indicate a matrix effect was present.

All field duplicate RPDs were within acceptance criteria.

Completeness

Completeness has been evaluated by comparing the total number of samples collected with the total number of samples with valid analytical data. 

All results were considered usable.  The completeness for this SDG is 100.0% compared to the minimum acceptance limit of 90%.

Representativeness

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 this SDG were analyzed following chain-of-custody forms (COCs) and analytical procedures described in the AFCEE QAPP.. All samples were prepared and analyzed within the holding times required for the analysis.

•  All instrument performance check criteria was 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 ten method blanks, two equipment blanks and three trip blanks associated with the VOC analyses in this SDG.  The method and trip blanks were free of VOCs above the RL.  The equipment blanks contained the following:

The positive methylene chloride result in the associated samples was flagged �B� to indicate a blank contamination was present.