KJS and Sorrento Vineyard Conversion Erosion Control Plan Application (ECPA) #P17-00432


SCH Number
Lead Agency
Napa County
Document Title
KJS and Sorrento Vineyard Conversion Erosion Control Plan Application (ECPA) #P17-00432
Document Type
NOP - Notice of Preparation
Present Land Use
ag watershed/AWOS

Document Description
The project proposes vegetation removal and earthmoving activities on slopes greater than 5 % in connection with the development of 111.5 net acres of vineyard within 156.8 gross acres on a 972.8-acre project site. Proposed activities associated with vineyard development include removing vegetation within the proposed clearing limits, ripping, rock removal, soil cultivation, seeding a cover crop, mulching, trenching for irrigation pipelines, installing a trellis system and deer fence, laying out vine rows, and installing temporary and permanent erosion control measures. The proposed project includes Petitions for Change on Water Right License 9125 (Application 13943) and Permit 18459 (App 26165), which are pending review and processing with the SWRCB, Division of Water Rights. The petitions request an expansion of the place of use to 280 acres (which includes the existing vineyards on the project site as well as the proposed vineyards); the construction of a new 48-acre-ft capacity offstream reservoir; and the construction of a new diversion structure in Elder Creek. Existing Matheson Reservoir would be the point of diversion by collection to storage and a point of rediversion to an existing offstream pond just south of Matheson Reservoir, and the offstream pond would be a point of rediversion from Matheson Reservoir, allowing for the transfer of water between the points of diversion, reservoirs and pond. The project also includes the ongoing maintenance of erosion control measures and operations of approx 4.3 acres of existing vineyards, converted from grassland in 2015 w/o benefit of an ECPA. These vineyard areas are located within two larger vineyard blocks totaling 17.4 acres, all of which occur on lands with a slope of 5% or less and therefore, are not subject to an ECPA pursuant to NCC section 18.108.070(B) except for the aforementioned 4.3 acres occurring on slopes over 5%. Accordingly, the vineyard development area requiring ECPA coverage pursuant to NCC Section 18.108.070(B) will be included in this project.

Contact Information
Donald Barrella
Napa County
1195 Third Street, Room 210
Napa, CA 94559

Phone : (707) 229-1338


38°30'27.38"N 122°16'35.50"W
St. Helena
Cross Streets
Sage Canyon Rd
Total Acres
Parcel #
025-270-022, -025
State Highways
Elder Creek

Notice of Completion

Review Period Start
Review Period End
Development Type
Other (Vineyard - 156.8 gross acres)
Local Action
Other Action Other Action: ECP
Project Issues
Aesthetic/Visual Agricultural Land Air Quality Archaeologic-Historic Biological Resources Drainage/Absorption Flood Plain/Flooding Forest Land/Fire Hazard Geologic/Seismic Minerals Noise Population/Housing Balance Public Services Recreation/Parks Schools/Universities Septic System Sewer Capacity Soil Erosion/Compaction/Grading Solid Waste Toxic/Hazardous Traffic/Circulation Tribal Cultural Resources Vegetation Water Quality Water Supply Wetland/Riparian Growth Inducing Land Use Cumulative Effects Other Other Issues: GHG
Reviewing Agencies
Cal Fire California Department of Conservation California Department of Fish and Wildlife, Bay Delta Region 3 California Department of Parks and Recreation California Regional Water Quality Control Board, San Francisco Bay Region 2 California State Lands Commission Department of Pesticide Regulation Department of Water Resources Resources Agency State Water Resources Control Board, Division of Drinking Water State Water Resources Control Board, Division of Water Rights California Native American Heritage Commission California Department of Transportation, District 4

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.

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