CH2M HILL, P.O. Box 91500, Bellevue, Washington 98009-2050

F -- GEOTECHNICAL DRILLING Sol Subcontract No. 214. Due 081195. Contact Point, Michelle Guttenberg, Contract Administrator, 206/453-5000. CH2M HILL under its ARCSWEST contract No. 68-W9-0031 with the Environmental Protection Agency is soliciting interested parties to provide geotechnical drilling services at the Bunker Hill Superfund Site in Kellogg, Idaho. The subcontractor shall provide a drill rig capable of advancing hollow-stem augers up to a maximum boring depth of 70 feet. Subsurface conditions are expected to consist of medium dense to very dense sand, silty sand and gravel materials. For each boring, standard penetration tests shall be performed at 5-foot intervals. Depending on soil conditions encountered other sampling methods such as Dames and Moore sampling and Shelby tubes will be required. Soil samples will be collected by the subcontractor and logged by CH2M HILL. The subcontractor will be required to submit a Site-Specific Health and Safety Plan (SSHP) prior to commencing the field investigation at the site. It is expected that all work associated with this investigation will be performed under Level D personal protection equipment. Borings for this investigation will be located at three distinct portions of the site: 1) Central Impoundment Area, 2) Shoshone County Airport, and Smelterville Flats. Some of the borings will be completed with a piezometer installation. (188)

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