Point of Contact; Sue Valenzuela, Purchasing Agent, Phone 206-764-6691, Fax 206-764-6817 or email [email protected] It is the intent and purpose of the work specified herein to drill and install monitoring wells and sample sub-surface materials as part of a Fort Lewis Logistics Center remedial action groundwater monitoring program. All monitoring wells shall be drilled by Air Rotary or Sonic drilling method and constructed to yield representative ground water samples of the screened interval for chemical analysis and to allow for the accurate measurement of ground water depths relative to the top of the well riser. Max imum drilling depth for the monitoring wells is 150 feet below ground surface. The work consists of furnishing all plant, labor, materials, transportation, supplies, and accessories required to accomplish the investigations, monitoring well completions, a nd all other operations incidental to the work in strict accordance with these specifications and applicable schedule. The Contractor shall provide personnel consisting of at least one experienced drilling rig operator, two helpers, and one traffic contro l flagger. The order of installation of monitoring wells will be determined by the contracting officers authorized representative (COR). The Governments intent is to be able to log subsurface materials in conjunction with drilling monitoring wells and have wells developed immediately after installation so that they can be sampled. Screen lengths and actual depths of wells may vary depending on sub-surface conditions encountered. The COR shall direct the Contractor on how to complete each individual wel l.

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