Knupp Creek Bank Repair (Notification of Lake or Streambed Alteration, No. EPIMS-SON-28434- R3)


SCH Number
Public Agency
California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW)
Document Title
Knupp Creek Bank Repair (Notification of Lake or Streambed Alteration, No. EPIMS-SON-28434- R3)
Document Type
NOE - Notice of Exemption
Document Description
The project is limited to bank stabilization including biotechnical boulder-anchored wood structures with planted willow (Salix sp.) stakes and other native riparian trees planted within the structure. Angular riprap will be added at the center of the structure and will also be planted with willow stakes. The total length of the bank stabilization is approximately 45 linear feet and will occupy approximately 340 square feet. The project will result in approximately 340 square feet of temporary impact to the riparian habitat from the construction of the structure and an additional 120 square feet of temporary impact from the need for rock fill to ensure safe access. The fill for access will be removed and the area restored when work has completed. Restoration plantings of the temporary impact areas is included in the design plans (Exhibit A). All work will be performed during the dry season when no or minimal water is present in Sonoma Creek. No in-water work will be conducted. No trees are to be removed as a part of the project. The work will be completed in a manner that minimizes erosion and does not negatively affect water quality. Erosion control measures such as fiber rolls and seeding and strawing of disturbed areas will prevent erosion.

Contact Information

James Hansen
Agency Name
Job Title
Environmental Scientist
Contact Types
Lead/Public Agency


Unincorporated area
Northern California, San Francisco Bay Area
Other Location Info
The project is located at Sonoma Creek, in an unincorporated area of the County of Sonoma, State of California; Latitude 38.397208°, Longitude -122.552740°; 1491 Dawn Hill Road, Kenwood, CA 95452.

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Class 4; California Code of Regulations, title 14, section 15304
Reasons for Exemption
Project consists of minor alterations in the condition of land, water, and/or vegetation which does not involve removal of healthy, mature, scenic trees.
County Clerk


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