WORK PLANS - Laserfiche WebLink

Home Browse Search

Appendix A-Sampling and Analysis Plan BSK Project E19-016-01F Stockton Metropolitan Airport(SCK) March 1, 2023 Stockton, California Page 10 Groundwater Samples, including QA/QC samples would be collected and analyzed based on the DoD v5.1 or later version. Please note that the reporting levels shown in the attached Table A-3, are "target" reporting levels and may not be achieved in instances were factors such as matrix interference,dilution,etc.,occurs. 4.3.5.Investigative-Derived Waste Sampling After completion of sampling activities for the entire site,waste characterization samples will be collected from the 55-gallon drums and or roll-off bin(s) containing investigative-derived waste (IDW). A sample will be collected from each soil drum or roll-off bin using a stainless-steel trowel and hand auger to load soil into the stainless-steel sleeves. These samples will be field composited into a single sample for the entire investigation and submitted to the laboratory for analysis. Liquid IDW samples for the entire investigation will be field composited into appropriate laboratory supplied bottles using PFAS-free disposable bailers, drum thieves, or dippers. 4.4 Laboratory Analysis Soil (including sediment) and water samples will be analyzed for PFAS compounds by Department of Defense Quality Systems Manual Version 5.1 (DoD v5.1) or later version. Chemical analysis will be in accordance with the requirements set forth in the State Water Resources Control Board (SWRCB) Water Code Section 13267 Order for the Determination of the Presence of Per-and Polyfluoroalkyl Substances Order WQ 2019-0005-DWQ(Order)Attachment 2 Table 1 in conjunction with the CVRWQCB letter dated April 8,2022,specifically,Table 2. Table A-3 summarizes the list of PFAS analytes to be analyzed, methods, and holding times. IDW characterization samples for waste profiling will be analyzed for Toxicity Characteristic Leaching Procedure (TCLP) Resource Conservation and Recovery Act (RCRA) metals, Volatile Organic Compounds (VOCs), and Semi-volatile Organic Compounds (SVOCs), or as required by the disposal facility. Table A-4 summarizes the constituents to be analyzed, methods,and holding times. 4.5 Equipment Cleaning Drilling/non-disposable sampling equipment will be steam-cleaned, and/or pressure washed prior to and in between sampling locations with potable water. PFAS-free potable water sources will be identified prior to sampling activities. Liquinox° and a triple-rinse cleaning method will be used on smaller non- disposable sampling equipment (i.e., SimulProbe sampler). Rinsate (water and detergent) and steam cleaning and/or pressure washing fluids will be containerized for disposal. After sampling, all team members must immediately conduct personal decontamination. Gloves are to be removed and placed into a sealable plastic bag and hands washed with Liquinox°soap and rinsed with PFAS-free water.