CX-006721: Categorical Exclusion Determination

Permanent Borehole ArrayCX(s) Applied: B3.7, B3.11, B5.12Date: 04/20/2011Location(s): Casper, WyomingOffice(s): RMOTC

Office of NEPA Policy and Compliance

April 20, 2011
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Permanent Borehole Array
CX(s) Applied: B3.7, B3.11, B5.12
Date: 04/20/2011
Location(s): Casper, Wyoming
Office(s): RMOTC


The purpose of this project is to test the effectiveness of ION Geophysical's newly designed seismic receivers. A 3 inch Party Subcontract Seismic Rig will drill twelve (12) 4 inch open hole wellbores to a depth of 330 feet each in a 4 hole array at the following well locations, disturbing no land outside the current drill pads: 38-61-SX-34, 25-SX-3 and 23-1 -SX-2.

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