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" } 1 ,,,.N�AR68018S Avh Ajwaojvr rbsewe„_a„an f.Wlusneme Sod a)drs ,p, rorb • Two duplicate gronnd water samples were analyzed for PCBs utilizing EPA Method 8082A. Ground water sample analyses for PCBs were performed by BE Laboratories. The analytical recalls for the duplicate samples for PCBs in ground water are provided in table 5. • Field Blanks. A field blank was poured at the sampling Identical to identify contamination Oaz may occur during the sample collection process. The field blank was analyzed for SVOC PAHs utilizing EPA Method 625 and for PCBs utilizing EPA MethoJ 8082A. The analytical results fa the field blank sample is provided in 'I'able 6. • cs (equipment blanks). "Twelve equipment blanks (B-EGSA-302] through B-EGSA-3038) were analyzed to determine the elfcefivenea of the decontamination process ad were collared prior to became equipment downhole in each subsequent borebole. All equipment blanks were analyzed for SVOCbPAI IS utilizing EPA Method 625 and for PCBs utilizing EPA Method 8og2A. SVOC:v?"s and PCBs were not detected in any of the 12 equipment blanks at concentrations above analytical method reporting limits. The analytical results far the equipment rinscate blank samples are provided in Table 2. No (rip blanks were collated as m, VOC analyses were required or m del IS part Of this characterization effort. Per U.S. EPA Sat-846 (July 2014), trip blacks are prepared during sampling events during which samples are collected far VOCs. 4, Characterization Results The analytical results for the subsurface soil samples anayzd for SVOCs and PAHs are discussed in Section 4.1. The analytical results far the subsurface soil and ground water samples analyzed for ICBs are discussed N Section 4.2. 4.1. SVOC/PAR Subsurface Soil Sample Results A Oral of 35 soil samples and three QC duplicate soil samples wee analyzed for SVOCs am PAHs using EPA Method 8270. The SVOCMAH analytical results for subsurface sell samples collected from the borehules in the Eastern GSA debris burial reach area arc presented in I able 3. No SVGCs or PAHs were detected in any of the soil samples above tine analytical method reporting bodies, including samples collected near morel debris enumintersed in the boreholm "I'he reporting limits are below the EPA industrial and residential soil Regional Screening Levels. Therefore, as specified in the Work Plan and agreed to by the regulatory agencies, the investigamium of SVOCs and PAHs in the fiaso m GSA debris burial trench area is considered complete, and no Nether action (i.e., additional soil sampling) For these constituents is needed. 41. PCB Subsurface Soil and Ground Water Sample Results The analytical results for the subsurface soil samples analyzed for PCBs and evaluation results for these data are discussed in Section 4.2.1. The analytical rents for the ground water samples analyzed for PCBs are discussed in Section 4.2.2.