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1 <br />' ~.o <br /> <br /> <br /> <br />1 <br /> <br />1 <br /> <br /> <br /> <br /> <br /> <br />L1 <br /> <br /> <br /> <br />CONCLUSIONS AND RECOMMENDATIONS <br />• No detections of 2,4D and Dicamba were identified in any of the soil samples. <br />• Measured TPH concentrations in soil samples aze all below the most stringent <br />Colorado screening level of 100 mglkg (Colorado Petroleum Storage Tank Guidance <br />Document, February 1999). <br />• No limit has been established by the EPA or by the Colorado Department of Public <br />Health and Environment for Bromacil in soil. Nevertheless, the Colorado section <br />of EPA recommends a Drinking Water Equivalent Level (DWEL) of 5 mg/1 for <br />Bromacil. A corresponding soil equivalent level should be either equal or higher <br />than 5 mg/kg. Consequently, no concern exists with respect to the highest detected <br />concentration of 0.26 mg/kg of Bromacil in the soil. <br />• No detections of TPH, 2,4D, Dicamba and Bromacil were identified in all water <br />samples. <br />• Measured concentrations in soil, surface water and groundwater of Repco Kill II <br />components are either non-detect or were detected at very low concentrations that do <br />not pose a treat to htunan health and the environment. <br />• Based on the above results and conclusions, no remedial actions aze recommended <br />and no further actions are necessary for the rock pile and the original release azea. <br />Environmental Site Investigation <br />' TechLink Environmental, Inc. <br />12 <br />Montgomery Pit <br />B&B Excavating <br />1 <br />