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• Portions of the properties were the sites of solid waste disposal associated with the former <br />SSDS. Reportedly, these wastes were disposed of into pre-existing gravel pits. At this time it <br />is not known whether these wastes were burned or partially burned. <br />Subsequent to closure of the SSDS, portions of the properties were the sites of illegal <br />dumping and illegal dumping and burning. <br />Two to four samples are proposed to be collected from each trench and one to two of these <br />samples are proposed to be submitted for analytical testing. The criteria for analytical testing will <br />be based on the presence or absence of burned refuse and/or municipal solid waste. One to <br />two samples from each trench excavation are proposed to be analyzed for TPH (C6 -C44) carbon <br />range identification and CAM 5/CAM 17. One sample would likely be burned refuse (if present) <br />or if municipal solid waste is encountered, soil layers within the waste, (if present) and a sample <br />would likely be analyzed of the underlying soil at the base of the wastes. It is anticipated that a <br />maximum of one soil sample would be collected for analytical testing from trenches that do not <br />contain observed buried wastes. <br />Samples will be collected at approximately 5 -foot intervals during drilling for purposes of logging <br />the borings. It is anticipated that one to two samples of these samples will be analyzed from <br />each of the borings. The same sampling criteria will generally utilized for the trench excavation <br />sampling program will apply to the borings. <br />It is anticipated that approximately 10 samples will be additionally analyzed for semi volatile <br />organic compounds, (SVOCs), volatile organic compounds, (VOCs), organochlorine pesticides, <br />and polychlorinated biphenyls (PCBs). A maximum of three samples will be analyzed for dioxins <br />and furans. VOC analyses will primarily be assigned to soil samples collected within and <br />underlying landfilled wastes, as VOCs typically are not characteristic of burn sites. Municipal <br />solid waste will not be sampled and analyzed for reasons previously stated in this work plan. <br />Samples that contain metal concentrations that exceed 10 times their respective soluble <br />threshold limit concentration (STLC) may be tested for soluble metal concentrations by the Title <br />22 Waste Extraction Test (WET) method or for soluble metals by the synthetic precipitation <br />leaching procedure (SPLP). <br />Two to three background soil samples are proposed to be collected from trench excavations in <br />areas outlying buried wastes to obtain background metal concentrations. These samples will be <br />analyzed for CAM 17 metals. <br />Based on review of available data, it appears that groundwater in the site vicinity occurs at <br />depths of approximately 60 feet bgs. However, there is some indication that perched <br />groundwater may exist in the area. If groundwater is encountered during trench excavating or <br />drilling, samples will be taken for analytical testing. <br />Based on available information, the proposed analytical testing program at this time is <br />presented in the following table. <br />4-25 <br />