Walt Ranch Erosion Plan Application #P11-00205-ECPA

Walt Ranch Erosion Plan Application #P11-00205-ECPA

The Walt Ranch Erosion Control Plan Application (ECPA) #P11-00205-ECPA proposes earhtmoving activities on slopes greater than five percent in connection with the development of 356 net acres of vineyard within 507 gross acres on the approx. 2,300 acre Walt Ranch (Proposed Project). A total of 65 vineyard blocks are proposed. The 507 gross acres include vineyard avenues that would be constructed around each of the proposed vineyards blocks, rock stockpile areas, and access roads that would be constructed or realigned from their existing configuration. Erosion control features that would be installed include: surface and subsurface drainage pipelines, drop inlets, out sloped level spreaders, rock checks, diversion ditches, rock sediment basins, and rolling dips. Up to three new groundwater wells and four new groundwater storage reservoirs would be constructed, along with water distribution pipelines. Deer fencing would surround individual vineyard blocks or clusters of vineyard blocks.

Yountville

Napa

Cal Fire, California Air Resources Board (ARB), California Department of Conservation (DOC), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Parks and Recreation, California Department of Transportation, District 4 (DOT), California Highway Patrol, California Native American Heritage Commission (NAHC), Department of Toxic Substances Control, Department of Water Resources, Office of Emergency Services, California, Office of Historic Preservation, Resources Agency

Other (vineyard)

Erosion Control Plan

Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Drainage/Absorption, Flood Plain/Flooding, Geology/Soils, Hazards & Hazardous Materials, Hydrology/Water Quality, Noise, Transportation, Vegetation, Wetland/Riparian