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CX-006029: Categorical Exclusion Determination

Acoustic Effects of Hydrokinetic Tidal Turbines
CX(s) Applied: B3.3, B3.6
Date: 05/25/2011
Location(s): Snohomish County, Washington
Office(s): Energy Efficiency and Renewable Energy, Golden Field Office

Snohomish County Public Utility District (PUD) is proposing to use Department of Energy and cost-share funding to study of the acoustic effects of hydrokinetic tidal turbines at the site of the District's Admiralty Inlet pilot project. Activities would include the purchase and configuration of instrumentation, the deployment and retrieval of the instrumentation packages on the seabed, the simulation and measurement of sound propagation by a tidal turbine, and experimentation (conducted at Pacific Northwest National Labs) on the effects of turbine noise signals on representative aquatic species.