The goal of this project is to reduce road-related sediments and stormwater runoff from existing unpaved roads. The goal is consistent with implementing the Napa River sediment Total Maximum Dally Load to meet water quality objectives established by
the San Francisco Bay Regional Water Quality Control Board. Reducing road~related sediment and stormwater delivery to local waterways will be achieved by improving existing road surfaces (e.g., improving ditch relief, removing berms; and shaping the road via rolling dips, outsloping, crowning or insloping) to improve surface runoff dispersion. Road treatments may also Include adding, road rock or rock armor as needed to fortify existing road surfaces. The scope· of this project will address 3 miles of existing unpaved road, within the existing road footprint, and will not expand the existing use of the road or the property. In 2018 a Biological and Cultural Resources survey (BA) was conducted by Natural Resource Conservation Services (USDA, NRCS) staff. No special status wildlife or plant species, nor their habitats, were observed during field surveys of the project area. No cultural resources within the
project area were found.