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CX-005541: Categorical Exclusion Determination

331 Building Landscaping Alteration, Hanford Site
CX(s) Applied: B1.3
Date: 03/11/2011
Location(s): Washington
Office(s): Office of River Protection-Richland Office

Remove about 61,000 square feet of irrigated landscaping around the 331 building (primarily lawn and shrubs, leaving the majority of the existing trees); selectively remove portions of the irrigation system; install weed barrier fabric, sterilant, river rock and crushed basalt; mow strip, basalt column features, and plant deciduous trees (current design is 12) with associated drip lines, pressure regulating valve stations and backflow prevention.

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