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CX-001732: Categorical Exclusion Determination

Tracers and Tracer Interpretation: Verification of Geothermal Tracer Methods in Highly Constrained Field Experiments
CX(s) Applied: B3.1, A9
Date: 03/30/2010
Location(s): California
Office(s): Energy Efficiency and Renewable Energy, Golden Field Office

This project is categorically excluded from further National Environmental Policy Act review for the following reasons: 1) The majority of the tasks proposed in this project are related to information gathering/data analysis/document preparation/dissemination and geological/geophysical surveys. Task 3 involves the drilling of 7.5 meter deep, 5 centimeter diameter holes on existing disturbance, and placing sensors in them; and Task 4 involves geophysical techniques (ground penetrating radar). 2) All field research would be conducted at the established Altona Flat Rock in Northeastern New York State (Altona, New York), an experimental site where extensive tracer experiments have been conducted. The Altona Flat Rock Research Site was established in 1994 and is supported by an onsite trailer that houses room for laboratory work and equipment storage. 3) Permits would be obtained, presumably from the State of New York for the use of non-hazardous tracers in the experiments. 4) This site has an existing array of 5 shallow wells in an X pattern, 10 meters on a side.

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