Walker Creek Ranch Distaff Thistle Control Project

2 Documents in Project


SCH Number
Lead Agency
Marin County Office of Education (MCOE)
Document Title
Walker Creek Ranch Distaff Thistle Control Project
Document Type
NEG - Negative Declaration
Present Land Use
Outdoor Education/Agricultural
Document Description
The proposed project involves aerial (helicopter) and manual (backpack and side-by-side boom on ATV) application of herbicides to control the invasive Wooley Distraff Thistle on approximately 402 acres of grasslands at the Marin County Office of Education's Walker Creek Ranch Outdoor School and Conference Center in northern Marin County. The aerial spraying would occur over a one-to-three-day period during the late winter/spring growing season for the thistle, typically between January and April. Follow-up treatments also would occur.

Contact Information

Patrick McLaughlin
Agency Name
Principal, Walker Creek ranch Outdoor School
Contact Types
Lead/Public Agency


Cross Streets
Marshall-Petaluma Road
Total Acres
approx 500

Notice of Completion

State Review Period Start
State Review Period End
State Reviewing Agencies
California Air Resources Board (ARB), California Department of Conservation (DOC), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Fish and Wildlife, Marin Region 7 (CDFW), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of Pesticide Regulation (DPR), California Department of Transportation, District 4 (DOT), California Department of Water Resources (DWR), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB), California State Lands Commission (SLC), Department of Toxic Substances Control, State Water Resources Control Board, Division of Water Quality
Development Types
Other (Invasive Plant Control Project)
Local Actions
District Approval of Invasive Plant Control Plan
Project Issues
Biological Resources, Hazards & Hazardous Materials, Hydrology/Water Quality, Recreation, Schools/Universities, Vegetation, Wetland/Riparian


Notice of Completion [NOC] Transmittal form

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