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1 <br />material should rapidly lower in 2,4-D concentration and will be laboratory tested on a 20 feet x 20 <br />feet spacing until the concentration is less than 10 mg/Kg .The material will then be hauled to the <br />' disposal facility. <br />[n the more likely case of a correlation existing for all contaminants, the ATH tests using the PID <br />t would be used to guide the excavation and disposal planned for May 1999. The correlation will show <br />what PID reading will equate to a 2,4-D concentration of 10 mg/Kg or more. Such material will be <br />treated as described above. <br />May was selected to provide the earliest period when weather-related problems were not likely to <br />' occur. For the May 1999 excavation, a front end loader will be used to excavate the minus'/: inch <br />road base pile. At least 6 small samples will be collected at random from each machine bucket and <br />combined to conduct the PID readings. Depending on the correlated concentration of 2,4-D, the <br />' material will either be taken to the Eagle County disposal facility, left on site or treated on site and <br />then taken to the landfill. These alternatives are described in detail in Item 2. <br />The bag house dust has already been disposed of, as described in Item 3 of the next section. <br />1 <br /> <br /> <br /> <br /> <br />1 <br /> <br />~l <br />1 <br />