SAP Addendum Specific to Field Sampling Plan  Remedial Actions under AFCEE ENRAC TO 0019

Section 5 - Sample Analyses and Quality Control

The samples to be collected during the TO 0019 activities include composite samples collected from the site for waste characterization purposes and discrete grab soil samples collected from the excavation base and sidewall for confirmation purposes. The waste characterization samples will not require QA/QC protocols. However, the confirmation soil samples collected from the excavation during the removal action will require appropriate QA/QC protocol in order to meet closure requirements. A summary of the sampling to be completed and the quality control requirements are presented in Table 2.1.

Sampling at the SWMUs and AOCs will comply with the requirements of the CSSA QAPP, Version 1.0 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 Agricultural and Priority Pollutants (APPL), Fresno, California. The project required detection limits will be below regulatory criteria, according to APPL laboratory-specific tolerances and limits. The laboratory data will be validated by a Parsons Chemist in accordance with the CSSA QAPP, Version 1.0.

A portion of the soil samples will be collected for waste characterization and characterization of stockpiled soils for use as backfill into an excavated area. Since these samples will be considered as screening data, no field duplicate, MS/MSD, or equipment blank samples will be collected.

When field conditions indicate that all impacted soils have been removed during the excavation, confirmation soil samples will be collected from the excavation and will be tested for site-specific COCs in accordance with the CSSA QAPP, Version 1.0, to document closure of soil media at each SWMU and AOC. The frequency of collection for the above QA/QC samples is as follows: one FD per 10 samples, one MS/MSD per 20 samples, one TB per cooler shipment of VOC samples and one equipment blank per sampling method performed at the site. The estimated number of QA/QC samples is shown in Table 2.1. Full QA/QC will be performed on these samples and 100% validation/verification will be required.