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KIRTLAND AIR FORCE BASE ALBUQUERQUE, NEW MEXICO ...

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APPENDIX C<br />

9. INTERNAL QUALITY CONTROL CHECKS<br />

This section describes all specific QC checks to be addressed for both field and laboratory analysis in<br />

order to comply with the requirements of the project investigation.<br />

2.28 Field Quality Control Checks<br />

QC procedures for field measurements will include:<br />

Calibrating the instruments as described in Section 7.0 of this QAPP<br />

Measuring duplicate samples<br />

Checking the reproducibility of measurements by taking multiple readings on a single sample<br />

or reference standard<br />

Comparing field measurements with NIST or other approved and traceable standards<br />

QC samples will be collected using methods described in the FSP (Appendix A of the BWP) and any<br />

project specific addenda to evaluate the quality of the associated samples. The field QC samples will<br />

include the following at the recommended frequencies:<br />

Trip blank—High grade laboratory water sampled that accompanies each cooler of samples<br />

for VOC analysis to the laboratory. This sample is to be analyzed for volatile compounds<br />

only.<br />

Ambient field blank—Collected during VOC sampling as required by project. The sample is<br />

to be analyzed for VOCs only.<br />

Equipment blank—Collected during sampling to ensure thorough equipment<br />

decontamination activity. Equipment blanks will be collected immediately after the<br />

equipment has been decontaminated. This blank will be analyzed for all laboratory analyses<br />

requested for environmental samples collected at the site.<br />

Field Duplicates—Field duplicates will be collected at a frequency of ten percent or as<br />

specified in the project-specific QAPP. Both the sample and its associated duplicate will be<br />

analyzed for the same parameters in the laboratory.<br />

Field Replicates—QA samples collected during sampling and sent to the USACE ECB<br />

laboratory for analysis. These samples are collected on a project-specific basis.<br />

2.29 Laboratory Quality Control Checks<br />

Laboratory QC checks include several procedures to ensure laboratory accuracy and precision during<br />

sample analysis. Types of laboratory quality control samples used during laboratory analyses include the<br />

following:<br />

Method Blanks—Method blanks consist of an analyte-free matrix to which all reagents are<br />

added in the same volumes or proportions as used in sample processing. A method blank is<br />

Kirtland AFB<br />

Quality Assurance Project Plan C-43 April 2004

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