Laserfiche WebLink
Applied Geotechnology Inc. <br /> 6.3 Sediments <br /> 6.3.1 Metals <br /> Table 10 presents total metal results for sediment samples collected from <br /> drainage ditches on-site. These samples were taken from the property and <br /> roadside drainage ditches as shown on the Site Kan, Figure 1. Arsenic <br /> concentrations ranged from 1.7 to 8.6 mg/kg (dry weight) in Samples S-4 and <br /> S-1, respectively. Cadmium concentrations ranged from the detection limit <br /> (less than 1) to 2 mg/kg (dry weight) . Chromium concentrations ranged from <br /> 76 to 110 mg/kg (dry wt) . Copper concentrations ranged from 70 to 150 <br /> mg/kg (dry wt) . Lead concentrations ranged from 39 to 100 mg/kg (dry wt) . <br /> 5.3.2 Fuel Hydrocarbons <br /> Fuel hydrocarbons in the C14 to C24 hydrocarbon range were detected in the <br /> sediment sample taken at Location S-1 shown in Figure 1 (see Table 15) . <br /> This fuel hydrocarbon is in the diesel range and probably represents diesel <br /> fuel leaked from vehicles stored on the paved area. The trench where the <br /> S-1 soil samples was collected receives runoff from the paved area. <br /> f" <br /> Irl <br /> l -32- <br />