[Home] ]

[Data Verification Reports Index]

RL83 DATA Verification Summary Report for Samples Collected from SWMU B-20 and SWMU B-24

Data Verifiers: Michelle Wolfe and 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 Sites B20 and B24 (under RL83) on March 28, 2000. The samples in the following laboratory Sample Delivery Group (SDG) were analyzed for semivolatile organic compounds (SVOCs) and metals including barium, chromium, copper, nickel, zinc, arsenic, cadmium, lead and mercury:

Field quality control samples collected were matrix spike/matrix spike duplicates (MS/MSD), field duplicates, and equipment blank. All 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 32313

General

This SDG consisted of seven (7) samples, including three (3) confirmation environmental soil samples, one field duplicate soil sample, one set of matrix spike/matrix spike duplicate samples and one equipment blank sample. The samples were collected on March 28, 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 time required by the method.

Accuracy

Accuracy was evaluated using the %R results for the MS/MSD samples, LCS samples, and surrogate spikes. Sample B20-SIFT06 (5-6�) was analyzed as the MS/MSD sample for this SDG.

All MS/MSD %Rs were within acceptance criteria except for the following:

Sample B20-SIFT06 (5-6�)

The benzoic acid results in the samples from the same site and of similar matrix as the MS/MSD sample were flagged �M� to indicate a matrix effect was present.

All LCS %Rs were within acceptance criteria except for the following:

LCS � 4/7/00 - Soil

After discussion with AFCEE team chief and chemist, a decision to not flag 4-chloroaniline with �R� was made. Only benzoic acid results in the associated soil samples were considered unusable and flagged �R�. All 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. Sample B20-SIFT6 (5-6�) was analyzed as the MS/MSD sample for this SDG. Sample B20-SIFT06 (5-6�) FD was the field duplicate of sample B20-SIFT06 (5-6�).

All MS/MSD RPDs were within acceptance criteria except for the following:

Sample B20-SIFT06 (5-6�)

The results for the non-compliant analytes in the 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 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 benzoic acid results in the soil samples were considered unusable and flagged �R� due to low LCS %Rs. The completeness for this SDG is 98.7% 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:

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 time required for the analysis.

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.

Metals SDG 32313

General

This SDG consisted of twenty-one (21) samples, including sixteen (16) confirmation environmental soil samples, two field duplicate soil samples, one set of matrix spike/matrix spike duplicate samples and one equipment blank. The samples were collected on March 28, 2000 and analyzed for metals (barium, chromium, copper, nickel, and zinc).

The metals 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 time required by the method.

Accuracy

Accuracy was evaluated using the %R results for the MS/MSD samples and LCS samples. Sample B20-SIFT06 (5-6�) was analyzed as the MS/MSD sample for this SDG.

All MS/MSD %Rs were within acceptance criteria except for the following:

Sample B20-SIFT06 (5-6�)

The results for the non-compliant analytes in the 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 %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 B20-SIFT06 (5-6�) was analyzed as the MS/MSD sample for this SDG. Sample B20-SIFT06 (5-6�) FD was the field duplicate of sample B20-SIFT06 (5-6�). Sample B20-SIFT14 (1.0�) FD was the field duplicate of sample B20-SIFT14 (1.0�).

All MS/MSD RPDs were within acceptance criteria except for the following:

Sample B20-SIFT06 (5-6�)

The barium and copper results in the samples from the same site with similar matrix as the MS/MSD samples were flagged �M� to indicate a matrix effect was present.

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

The barium and copper positive results in the 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:

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 within the holding time required for the analysis.

Sample B20-SIFT06 (5-6�)

Sample B20-SIFT07 (9-10.0�)

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

There were two method blanks, one equipment blank and several calibration blanks associated with the metal analyses in this SDG. All method and calibration blanks were free of any metals above the RL. The equipment blank, RL83-EB06, contained 0.021 mg/L of chromium. All positive chromium results in the samples associated with the equipment blank were flagged �B�.

Mercury SDG 32313

General

This SDG consisted of twenty-one (21) samples, including sixteen (16) 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 March 28, 2000 and analyzed for mercury.

The mercury analyses were performed using USEPA SW846 Method 7471A (soil) and 7470A (water). 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 time required by the respective method.

Accuracy

Accuracy was evaluated using the %R results for the MS/MSD samples and LCS samples. Sample B20-SIFT06 (5-6�) was analyzed as the MS/MSD sample for 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 B20-SIFT06 (5-6�) was analyzed as the MS/MSD sample for this SDG. Sample B20-SIFT06 (5-6�) FD was the field duplicate of sample B20-SIFT06 (5-6�). Sample B20-SIFT14 (1.0�) FD was the field duplicate of sample B20-SIFT14 (1.0�).

The MS/MSD RPD was within acceptance criteria.

All field duplicate RPDs were within acceptance criteria except for the following:

The positive mercury results in the samples collected on the same day as the field duplicate pair were considered estimated and flagged �J� and the non-detect mercury results were 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.

Two mercury results were considered unusable and flagged �R� due to non-compliant field duplicate RPDs. The completeness for this SDG is 90.5% 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:

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 within the holding time required for the analysis.

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

Arsenic SDG 32313

General

This SDG consisted of twenty-one (21) samples, including sixteen (16) confirmation environmental soil samples, two field duplicate soil samples, one set of matrix spike/matrix spike duplicate samples and one equipment blank. The samples were collected on March 28, 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 time required by the method.

Accuracy

Accuracy was evaluated using the %R results for the MS/MSD samples and LCS samples. Sample B20-SIFT06 (5-6�) was analyzed as the MS/MSD sample for this SDG.

All MS/MSD %Rs were within acceptance criteria except for the following:

Sample B20-SIFT06 (5-6�)

The arsenic results in the samples from the same site and of similar matrix as the MS/MSD sample were flagged �M� to indicate a matrix effect was present.

All 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 B20-SIFT06 (5-6�) was analyzed as the MS/MSD sample for this SDG. Sample B20-SIFT06 (5-6�) FD was the field duplicate of sample B20-SIFT06 (5-6�). Sample B20-SIFT14 (1.0�) FD was the field duplicate of sample B20-SIFT14 (1.0�).

The MS/MSD RPD was within acceptance criteria.

All field duplicate RPDs were within acceptance criteria except for the following:

All positive arsenic results 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 100.0% 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:

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 time required for the analysis.

Sample B20-SIFT06 (5-6�)

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

There were three 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 32313

General

This SDG consisted of twenty-one (21) samples, including sixteen (16) 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 March 28, 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 time required by the method.

Accuracy

Accuracy was evaluated using the %R results for the MS/MSD samples and LCS samples. Sample B20-SIFT06 (5-6�) was analyzed as the MS/MSD sample for 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 B20-SIFT06 (5-6�) was analyzed as the MS/MSD sample for this SDG. Sample B20-SIFT06 (5-6�) FD was the field duplicate of sample B20-SIFT06 (5-6�). Sample B20-SIFT14 (1.0�) FD was the field duplicate of sample B20-SIFT14 (1.0�).

The MS/MSD RPD was within acceptance criteria.

All field duplicate RPDs were within acceptance criteria except for the following:

All positive cadmium results 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:

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 time required for the analysis.

There were three 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 32313

General

This SDG consisted of twenty-one (21) samples, including sixteen (16) 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 March 28, 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 time required by the method.

Accuracy

Accuracy was evaluated using the %R results for the MS/MSD samples and LCS samples. Sample B20-SIFT06 (5-6�) was analyzed as the MS/MSD sample for this SDG.

All MS/MSD %Rs were within acceptance criteria except for the following:

Sample B20-SIFT06 (5-6�)

The lead results in the samples from the same site and of similar matrix as the MS/MSD were flagged �M� to indicate a matrix effect was present.

All 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 B20-SIFT06 (5-6�) was analyzed as the MS/MSD sample for this SDG. Sample B20-SIFT06 (5-6�) FD was the field duplicate of sample B20-SIFT06 (5-6�). Sample B20-SIFT14 (1.0�) FD was the field duplicate of sample B20-SIFT14 (1.0�).

The MS/MSD RPD failed to meet criteria as follows:

Sample B20-SIFT06 (5-6�)

The lead results in the samples from the same site and of similar matrix as the MS/MSD were flagged �M� to indicate a matrix effect was present.

All field duplicate RPDs were within acceptance criteria except for the following:

All positive lead results in the samples collected 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:

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 within the holding time required for the analysis.

Sample B20-SIFT06 (5-6�)

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