Reasons for Exemption
The project will improve and expand an existing raw water storage tank and relocate approximately 5,000 ft. of pipeline. The permanent area of impact for the storage tank will be less than 1,500 sq ft. as the 100,000 gal tank is replacing a 5,000 gal tank.
The proposed project will not result in adverse impacts that are significant when viewed in connection with effects of past, current, and probable future projects. Construction-related impacts will be short-term and limited to the project site. As noted above, best management practices will be implemented to ensure construction-related impacts on sensitive resources are avoided or minimized. The project will not significantly adversely affect public services, geologic stability, soils, or health risk. In the near- and long-term, the project will improve late summer and early fall streamflow and provide for higher functioning aquatic and riparian habitat.
The proposed project is exempt under Class 33 as it restores streamflow in Little Butano Creek for aquatic habitat during the time that low flows are a principal limiting factor to the recovery of steelhead trout and coho salmon populations in the creek (Pescadero-Butano Watershed Assessment ESA 2004). By storing more water when streamflow is more abundant (winter and spring), the project will reduce and eliminate diversions when streamflow is dangerously low for aquatic species (late summer and early fall).