CX-005381: Categorical Exclusion Determination

Casper Service Center Floor DrainDate: 02/28/2011Location(s): WyomingOffice(s): Western Area Power Administration-Rocky Mountain Region

Office of NEPA Policy and Compliance

February 28, 2011
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Casper Service Center Floor Drain

Date: 02/28/2011
Location(s): Wyoming
Office(s): Western Area Power Administration-Rocky Mountain Region

The Western Area Power Administration Casper Service Center requires floor drain hookup to the municipal sewer system. The existing floor drain in the Vehicle Storage Building is capped and creates a wet floor hazard inside the building. Western obtained permission to connect the floor system to the city sewer system. The new drain pipe will require trenching 4.5 feet deep for about 12 feet outside the building to connect to an existing sewer pipeline. A manhole will be installed along the pipe prior to connection with the sewer line. All work is in previously disturbed ground in a developed area. The existing drain system has an oil and grease separator already installed to prevent contamination.

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