Maxville Vineyard Conversion Agricultural Erosion Control Plan (ECP) - P23-00130
2 Documents in Project
Summary
SCH Number
2025110234
Lead Agency
Napa County
Document Title
Maxville Vineyard Conversion Agricultural Erosion Control Plan (ECP) - P23-00130
Document Type
NOD - Notice of Determination
Received
Posted
3/19/2026
Document Description
MAXVILLE VINEYARD: VINEYARD CONVERSION – ENVIRONMENTAL REVIEW of land disturbing activities on slopes greater than 5% associated with Agricultural Erosion Control Plan (ECP) #P23-00130-ECP, for the clearing of vegetation, earthmoving, and installation and maintenance of erosion control measures for conversion to vineyard of 56.2. gross acres of new vineyard (i.e., development area, proposed clearing limits) with 42 net planted acres in ten vineyard blocks (Blocks A through J) [reduced from original request of 83.5 acres and 14 blocks] of gentle to steeply sloped land (5-37% slope, with an average slope of 20% with 1.7 acres occurring on slopes over 30%) consisting of coast live oak woodland (2.8 acres out of 111.27 acres), oregon white oak woodland (0.8 acres out of 33.78 acres), blue oak woodland (6.9 acres out of 216.12), mixed oak forest (0.1 acres out of 121.43 acres), wild oat grassland (43.5 acres out of 301.65 acres), walnut orchard (0.15 acres out of 0.15 acres) and ruderal land (1.9 acres out of 30.55 acres) located within the Napa River Watershed (Chiles Creek) and the Sacramento River Watershed (Maxwell Creek – located within the Lake Hennessey Sensitive Domestic Water Supply Drainage) located on approximately 1,025 acres split across three (3) parcels (Assessors Parce Numbers [APNs]: 025-020-023-000, 025-020-027-000, and 025-020-028-000). The project also includes 32.4 acres identified for permanent preservation in addition to the 520 acres already in a Forever Wildland Conservation Easement under the oversight of the Napa County Land Trust.
Contact Information
Name
Dana Eleanor Morrison
Agency Name
County of Napa
Job Title
Supervising Planner - Conservation
Contact Types
Lead/Public Agency
Phone
Name
Coda Rainsford
Agency Name
Consulting Firm - HD Vine
Job Title
Engineer of Record
Contact Types
Project Applicant
Phone
Email
Name
Koko Nor Corporation
Agency Name
Property Owner
Job Title
Property Owner/Applicant
Contact Types
Parties Undertaking Project
Phone
Location
Coordinates
Cities
St. Helena, unincorporated area
Counties
Napa
Regions
Northern California, Unincorporated
Cross Streets
Chiles Pope Valley Road and Lower Chiles Valley Road
Zip
94574
Total Acres
1025
Jobs
1
Parcel #
025-020-023, 025-020-027 and 025-020-028
State Highways
None
Railways
None
Airports
None
Schools
None
Waterways
Creeks: Maxwell, Chiles, Hardin, Moore, and Uncle John
Township
08N
Range
05W
Section
1
Base
MDM
Notice of Determination
Approving Agency
County of Napa
Approving Agency Role
Lead Agency
Approved On
County Clerk
Napa
Final Environmental Document Available at
https://pbes.cloud/index.php/s/KEaTgLwamjiG9Jg
Determinations
(1) The project will have a significant impact on the environment
No
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
No
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
Yes
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
No
(3) Mitigated measures were made a condition of the approval of the project
Yes
(4) A mitigation reporting or monitoring plan was adopted for this project
Yes
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
Yes
Attachments
Notice of Determination
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