Section 9 - Sample Analysis and Quality Control

The samples to be collected during the TO 0058 task order activities include surface soils, subsurface soils, groundwater, and soil gas. A majority of the sampling will be performed to assess site conditions for remedial purposes and will not require typical QA/QC protocols. However, a limited number of samples, such as the soil samples collected from the excavation during the removal action, may require appropriate QA/QC if the results will be submitted for documentation of closure attainment. Because of the difference in intended use of the sample data, different levels of quality control requirements will apply. A summary of the sampling to be completed and the quality control requirements are presented in the following sections.

9.1 - Sample Analytical Requirements

Soil, groundwater and soil gas samples collected during the task order activities will be submitted for laboratory analysis. Table 1.1 presents a summary of the sampling to be conducted under TO 0058 along with the analytical parameters and associated task order activity.

9.2 - Quality Control Requirements

Sampling conducted as part of SVE Treatability Tests at AOC-65 will comply with the requirements of the AFCEE QAPP, Version 3.0 and the Sampling and Analysis Plan, Volume 1, Environmental Encyclopedia, except where previously described in this document.

Analytical data collected during the task order activities will be analyzed by DHL Analytical (DHL), Round Rock, Texas. The project required detection limits will be below regulatory criteria, according to DHL laboratory-specific tolerances and limits. The laboratory data will be validated by a Parsons Chemist in accordance with the AFCEE QAPP, Version 3.0.

A majority of the data collected as part of the Treatability Study at AOC-65 is considered screening data. Therefore, no field duplicate, MS/MSD, or equipment blank samples will be collected. However, trip blanks will be collected for each day that VOC analysis samples are sent to the laboratory at a rate of one trip blank per cooler shipped.

One area where sample QA/QC requirements may be required is the excavation completed west of Building 90 during the removal actions. If field conditions indicate that all impacted soils have been removed during the excavation, post-excavation verification soil samples collected from the excavation will be tested in accordance with the AFCEE QAPP, Version 3.0, to document closure of soil media at the AOC-65 unit. If it is determined that the samples may be submitted to support closure of the unit, field duplicate, MS/MSD, and equipment blank samples will be collected.