CX-001115: Categorical Exclusion Determination

Hand Auger Samples in East Fork Arroyo, Shiprock, New Mexico Disposal SiteCX(s) Applied: B3.1Date: 03/04/2010Location(s): Shiprock, New MexicoOffice(s): Legacy Management

Office of NEPA Policy and Compliance

March 4, 2010
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Hand Auger Samples in East Fork Arroyo, Shiprock, New Mexico Disposal Site
CX(s) Applied: B3.1
Date: 03/04/2010
Location(s): Shiprock, New Mexico
Office(s): Legacy Management

Identify the source of contaminated groundwater that is seeping into Many Devils Wash. Current studies indicate that the contamination may originate in the East Fork Arroyo, a tributary to the wash. A hand auger would be used in the East Fork Arroyo to obtain groundwater that would be tested for contaminants. Up to 50 locations may need to be augered before sufficient information is obtained to characterize the contaminant source.

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