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Data Verification Report
for Package 32374

RL83 Data Verification Summary Report

for samples collected from

Camp Stanley Storage Activity

Boerne, Texas

Data Verifiers: Michelle Wolfe and Tammy Chang

INTRODUCTION

The following data verification summary report covers environmental soil samples and associated field quality control (QC) samples collected from the Camp Stanley (under RL83) on April 6, 2000. Samples in the following laboratory Sample Delivery Group (SDG) were analyzed for semivolatile organic compounds (SVOCs), volatile organic compounds (VOCs), and metals including barium, chromium, copper, nickel, zinc, arsenic, cadmium, lead and mercury:

32374

 

 

Field quality control samples collected were trip blank; equipment blank; 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. The trip blank was 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 32374

General

This SDG consisted of seventeen (17) samples, including twelve (12) confirmation environmental soil samples, two field duplicate soil samples, one set of matrix spike/matrix spike duplicate samples and one equipment blank sample.  The samples were collected on April 6, 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.  Sample B4-SB17 (4-6�) was used as the MS/MSD sample in this SDG.

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

Sample B4-SB17 (4-6�)

Analyte

MSD %R

QC

benzoic acid

19.4

25-172

                                      -  The %R result was compliant.

The benzoic acid result in samples from site B4 with similar matrix as the MS/MSD sample was flagged �M� to indicate a matrix effect was present.

The LCS %Rs were within acceptance criteria.

All surrogate %Rs were within acceptance criteria except for as follows:

Sample

Surrogate

%R

QC

B4-SB16 (0-0.5�) FD

2-fluorobiphenyl

32.2

34-135

The six analytes associated with the 2-fluorobiphenyl in this sample were considered unusable and flagged �R�.

Precision

Precision was evaluated using the Relative Percent Difference (RPD) results obtained from MS/MSD results; and the field duplicate analyte values. Sample B4-SB17 (4-6�) was used as the MS/MSD sample in this SDG.  Sample B4-SB16 (0.0-0.5�) FD was the field duplicate of sample B4-SB16 (0.0-0.5�).  Sample B4-SB17 (4-6�) FD was the field duplicate of sample B4-SB17 (4-6�).

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

Sample B4-SB14 (4-6�)

Analyte

RPD

QC

benzoic acid

32.9

30

The benzoic acid result in samples from site B4 with similar matrix as the MS/MSD sample was 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. 

The results for samples in this SDG were considered usable except the six analytes associated with the non-compliant surrogate recovery in sample B4-SB16 (0-0.5�) FD.  The completeness for this SDG is 99.4% 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 with 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 two method blanks and one equipment blank associated with the SVOC analyses in this SDG.  All blanks were free of SVOCs above the RL.

VOC SDG 32374

General

This SDG consisted of eighteen (18) samples, including twelve (12) confirmation environmental soil samples, two field duplicate soil samples, one set of matrix spike/matrix spike duplicate samples, one equipment blank sample and one trip blank sample.  The samples were collected on April 6, 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. Sample B4-SB17 (4-6�) was used as the MS/MSD sample in this SDG.

All MS/MSD, LCS and surrogate %Rs were within acceptance criteria except.

Precision

Precision was evaluated using the Relative Percent Difference (RPD) results obtained from MS/MSD results; and the field duplicate analyte values. Sample B4-SB17 (4-6�) was used as the MS/MSD sample in this SDG.  Sample B4-SB16 (0.0-0.5�) FD was the field duplicate of sample B4-SB16 (0.0-0.5�).  Sample B4-SB17 (4-6�) FD was the field duplicate of sample B4-SB17 (4-6�).

All MS/MSD and 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. 

The results for samples in this SDG 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.  All samples were prepared and analyzed with 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 five method blanks, one trip blank and one equipment blank associated with the VOC analyses in this SDG.  The method blanks and trip blank were free of VOCs above the RL.  The equipment blank, RL83-EB07 contained 1.10 mg/l of methylene chloride.  No action was needed for the samples since either the methylene chloride result in the samples was non-detect or less than the reporting limit.

METALS SDG 32374

General

This SDG consisted of seventeen (17) samples, including twelve (12) confirmation environmental soil samples, two field duplicate soil samples, one set of matrix spike/matrix spike duplicate samples and one equipment blank sample.  The samples were collected on April 6, 2000 and analyzed for metals; barium, chromium, copper, nickel, and zinc.

The barium, chromium, copper, nickel, and zinc analyses were performed using United States Environmental Protection Agency (USEPA) SW846 Method 6010B. 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 and LCS samples. Sample B4-SB17 (4-6�) was used as the MS/MSD sample in this SDG.

All MS/MSD and LCS %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. Sample B4-SB17 (4-6�) was used as the MS/MSD sample in this SDG.  Sample B4-SB16 (0.0-0.5�) FD was the field duplicate of sample B4-SB16 (0.0-0.5�).  Sample B4-SB17 (4-6�) FD was the field duplicate of sample B4-SB17 (4-6�).

All MS/MSD RPDs were within acceptance criteria.

All field duplicate RPDs were within acceptance criteria except for as follows:

Field Duplicate Pair

Analyte

%RPD

QC

B4-SB17 (4-6�) and

B4-SB17 (4-6�) FD

barium

21.7

20

The barium result in the associated samples collected on the same day as the field duplicate pair were considered estimated and flagged �J�.

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% 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 sample collection or analysis.

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

        All initial and continuing calibration criteria were met.

        All second source calibration criteria were met.

        All interference check criteria were met.

        All dilution test criteria were met except for as follows:

Sample B4-SB17 (4-6�)

Analyte

%D

QC

barium

15.7

10

The barium result in the associated samples were considered estimated and flagged �J�.  The chromium results were less than the reporting limit.  The five-fold diluted result for copper, nickel and zinc was less than the reporting limit.  Therefore, the dilution test was not applicable for the chromium, copper, nickel and zinc.

         All post digestion spike addition criteria were met except for as follows:

Sample B4-SB17 (4-6�)

Analyte

%R

QC

nickel

71.1

75-125

The nickel result in the associated samples were considered estimated and flagged �J�.

There were two method blanks, one equipment blank and several calibration blanks associated with the metal analyses in this SDG.  All blanks were free of any metals above the RL. 

MERCURY SDG 32374

General

This SDG consisted of seventeen (17) samples, including twelve (12) confirmation environmental soil samples, two field duplicate soil samples, one set of matrix spike/matrix spike duplicate samples and one equipment blank sample.  The samples were collected on April 6, 2000 and analyzed for mercury.

The mercury analyses were performed using USEPA SW846 Method 7470A/7471A. 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 and LCS samples. Sample B4-SB17 (4-6�) was used as the MS/MSD sample in this SDG.

The MS/MSD and LCS %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. Sample B4-SB17 (4-6�) was used as the MS/MSD sample in this SDG.  Sample B4-SB16 (0.0-0.5�) FD was the field duplicate of sample B4-SB16 (0.0-0.5�).  Sample B4-SB17 (4-6�) FD was the field duplicate of sample B4-SB17 (4-6�).

All MS/MSD and 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% 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 sample collection or analysis.

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

        All initial and continuing calibration criteria were met.

        All second source calibration criteria were met.

There were two method blanks and one equipment blank and several calibration blanks associated with the mercury analyses in this SDG.  All the blanks were free of any mercury above the RL except the equipment blank contained 0.0519 mg/l of mercury.  All sample results greater than the RL were flagged with �B�.

ARSENIC SDG 32374

General

This SDG consisted of seventeen (17) samples, including twelve (12) confirmation environmental soil samples, two field duplicate soil samples, one set of matrix spike/matrix spike duplicate samples and one equipment blank sample.  The samples were collected on April 6, 2000 and analyzed for arsenic.

The arsenic analyses were performed using United States Environmental Protection Agency (USEPA) SW846 Method 7060A. 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 and LCS samples. Sample B4-SB17 (4-6�) was used as the MS/MSD sample in this SDG.

The MS/MSD %Rs met the acceptance criteria.

The LCS %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. Sample B4-SB17 (4-6�) was used as the MS/MSD sample in this SDG.  Sample B4-SB16 (0.0-0.5�) FD was the field duplicate of sample B4-SB16 (0.0-0.5�).  Sample B4-SB17 (4-6�) FD was the field duplicate of sample B4-SB17 (4-6�).

The MS/MSD RPDs were within acceptance criteria.

The field duplicate RPDs was within acceptance criteria except for as follows:

Field Duplicate Pair

Analyte

%RPD

QC

B4-SB16 (0-0.5�) and

B4-SB16 (0-0.5�) FD

arsenic

41.4

15

The positive arsenic result in the associated samples that were collected on the same day as the field duplicate pair were considered estimated and flagged �J� and the non-detect arsenic result was considered unusable and flagged �R�.

Completeness

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

Three arsenic results were considered unusable and flagged �R� due to non-compliant field duplicate RPDs.  The completeness for this SDG is 82.3% 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 sample 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 with the holding times required for the analysis.

        All initial and continuing calibration criteria were met.

        All second source calibration criteria were met.

        The five-fold diluted arsenic result was less than the reporting limit.  Therefore, the dilution test results were not applicable.

        The recovery test criteria was not met:

 Sample B4-SB17 (4-6�)

Analyte

%R

QC

arsenic

74.6

85-115

The arsenic results in the associated samples were considered to be estimated and flagged �J�.

There were two method blanks, one equipment blank and several calibration blanks associated with the arsenic analyses in this SDG.  All blanks were free of any arsenic above the RL.

CADMIUM SDG 32374

General

This SDG consisted of seventeen (17) samples, including twelve (12) confirmation environmental soil samples, two field duplicate soil samples, one set of matrix spike/matrix spike duplicate samples and one equipment blank sample.  The samples were collected on April 6, 2000 and analyzed for cadmium.

The cadmium analyses were performed using United States Environmental Protection Agency (USEPA) SW846 Method 7131A. 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 and LCS samples. Sample B4-SB17 (4-6�) was used as the MS/MSD sample in this SDG.

The MS/MSD and LCS %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. Sample B4-SB17 (4-6�) was used as the MS/MSD sample in this SDG.  Sample B4-SB16 (0.0-0.5�) FD was the field duplicate of sample B4-SB16 (0.0-0.5�).  Sample B4-SB17 (4-6�) FD was the field duplicate of sample B4-SB17 (4-6�).

All MS/MSD and 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% 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 sample 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 with the holding times required for the analysis.

        All initial and continuing calibration criteria were met.

        All second source calibration criteria were met.

        The diluted cadmium result was less than the reporting limit.  Therefore, the dilution test results were not applicable.

        All recovery test criteria were met.

There were two method blanks, one equipment blank and several calibration blanks associated with the cadmium analyses in this SDG.  All blanks were free of any cadmium above the RL.

LEAD SDG 32374

General

This SDG consisted of seventeen (17) samples, including twelve (12) confirmation environmental soil samples, two field duplicate soil samples, one set of matrix spike/matrix spike duplicate samples and one equipment blank sample.  The samples were collected on April 6, 2000 and analyzed for lead.

The lead analyses were performed using United States Environmental Protection Agency (USEPA) SW846 Method 7421. 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 and LCS samples. Sample B4-SB17 (4-6�) was used as the MS/MSD sample in this SDG.

The MS/MSD and LCS %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. Sample B4-SB17 (4-6�) was used as the MS/MSD sample in this SDG.  Sample B4-SB16 (0.0-0.5�) FD was the field duplicate of sample B4-SB16 (0.0-0.5�).  Sample B4-SB17 (4-6�) FD was the field duplicate of sample B4-SB17 (4-6�).

The MS/MSD RPDs were within acceptance criteria.

The field duplicate RPDs were higher than the acceptance criteria:

Field Duplicate Pair

Analyte

%RPD

QC

B4-SB16 (0-0.5�) and

B4-SB16 (0-0.5�) FD

B4-SB17 (4-6�) and

B4-SB17 (4-6�) FD

lead

 

lead

37.4

 

44.4

25

 

25

The lead result in the associated samples that were collected on the same day as the field duplicate pair were considered estimated and flagged �J�.

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% 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 sample collection or analysis.

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

        All initial and continuing calibration criteria were met.

        All second source calibration criteria were met.

        The dilution test criteria were not met:

Sample B4-SB17 (4-6�)

Analyte

%D

QC

lead

17.3

10

The lead result in the associated samples was considered estimated and flagged �J�.

        All recovery test criteria were met.

There were two method blanks, one equipment blank and several calibration blanks associated with the lead analyses in this SDG.  The blanks were free of any lead above the RL.