Reasons for Exemption
Project is the grading, earthmoving activities associated with the construction of a replacement road including a new bridge to cross an unnamed blue line stream designed to be built outside of the Top Of Bank to reduce hydrologic impacts from the existing crossing and two culverts to cross two drainage swales and associated outfall structures in addition to a restoration plan to replace existing vegetation located on shallow to steep slopes (slopes ranging typically from 0-35%) located within an area of approximately of 3.69 acres within an existing vineyard and agricultural road and adjacent chaparral and disturbed grassland. A geotechnical report was prepared for the project and all of the storm water conveyance facilities were designed to meet to 100 year storm event. The project area is mostly located on lands that have previously been disturbed by vineyard and the existing driveway. The proposed restoration plan would replace existing vegetation types where minor realignment takes place to improve the stream crossing. Existing improvements in the project area consist of vineyard, winery and agricultural accessory structures and residential structures. Pursuant to State Section numbers 15301 & 15302, the project is replacement/repair of existing facilities. The project area is not situated on a recognized hazardous waste site or would not exacerbate any known landslide. This project will not adversely affect cultural or scenic resources, and the project is conditioned to require protections for such resources if any are discovered. This project includes a vegetation restoration plan and will not adversely affect biological resources, and the project is conditioned to require other state and federal permits which include protections for such resources. The proposed project would not substantially interfere with the movement of wildlife. In addition it will not contribute to increases in local off-site stream flows or sediment levels, reductions in groundwater recharge, or groundwater levels, or changes in other environmental parameters. Finally, there are no unusual circumstances associated with this project that would cause it to have a significant effect on the environment: see project file at the Napa County Department of Planning, Building, and Environmental Services for documentation supporting these conclusions.