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ICES <br /> ICES collected five soil samples in March 2024 . The results of the <br /> preliminary sampling activities indicated that organochlorine <br /> pesticides, lead, and mercury were below their respective <br /> residential environmental screening levels (ESLs) and arsenic <br /> concentrations were within background levels . <br /> 4 .0 SAMPLING ACTIVITIES <br /> ICES collected additional soil samples on October 28, 2024 . <br /> A total of twenty-five soil samples were collected from twenty- <br /> five test pit locations . The approximate test pit locations are <br /> shown in Figure 2 . <br /> Soil samples were collected from the surficial sediments within the <br /> entire Site at a depth of approximately 6 to 9 inches below the <br /> existing ground surface (bgs) . The soil samples were collected by <br /> scraping the sidewalls of each test pit location at the selected <br /> depth directly into 4-ounce glass jars . <br /> After being sealed and labeled, the soil samples were immediately <br /> placed in a chilled cooler containing crushed ice for <br /> transportation to the laboratory. Proper documentation and field <br /> chain-of-custody procedures were followed. <br /> All equipment used during the sampling activities which might have <br /> come into contact with contaminated materials was thoroughly <br /> decontaminated before and after each use. This was accomplished by <br /> washing with Alconox (a laboratory-grade detergent) and rinsing <br /> with distilled water. <br /> 5 .0 LABORATORY ANALYSIS <br /> The soil samples were sent to McCampbell Analytical, Inc. of <br /> Pacheco, California, a state-certified laboratory and analyzed as <br /> follows . <br /> Organochlorine pesticides using EPA Method 8081B; and <br /> Arsenic, lead, and mercury using EPA Method 6020 . <br /> The samples were analyzed on a normal turnaround basis . <br /> 2 <br />