Arroyo Conejo Invasive Plant Removal (Streambed Alteration Agreement No. EPIMS-VEN-21148- R5)


SCH Number
Public Agency
California Department of Fish and Wildlife, South Coast Region 5 (CDFW)
Document Title
Arroyo Conejo Invasive Plant Removal (Streambed Alteration Agreement No. EPIMS-VEN-21148- R5)
Document Type
NOE - Notice of Exemption
Document Description
The California Department of Fish and Wildlife has amended Streambed Alteration Agreement number EPIMS-VEN-21148-R5, pursuant to Section 1602 of the Fish and Game Code to Rancho Simi Recreation and Park District as represented by Brian Stark. The project is limited to the Arroyo Conejo Invasive Plant Removal project on Arroyo Conejo Creek. The Project consists of the restoration of riparian habitats and removal of non-native vegetation in a high fire hazard severity zone along Arroyo Conejo Creek in Thousand Oaks, CA. The target species for removal are giant reed (Arundo donax) and Mexican fan palm (Washingtonia robusta). The total area colonized by giant reed is approximately 2.02 acres and there are approximately 60 mature Mexican fan palms within the project reach. There are four reaches within the Project site. Project activities will proceed from Reach 1 to Reach 4, with initial giant reed and Mexican fan palm biomass removal scheduled to occur between October 1, 2022 and January 31, 2023. Due to elevated water levels, the low water crossing along Reach 2 is inaccessible. To allow equipment access, two mature willows (Salix lasiolepis) will be removed flush to the ground to access shallower water just adjacent to the original alignment. The willows will be cut flush to the ground and allowed to regrow.

Contact Information

Angela Castanon
Agency Name
California Department of Fish and Wildlife, South Coast Region
Job Title
Environmental Scientist
Contact Types
Lead/Public Agency


Thousand Oaks
Southern California
Cross Streets
See below "Other Location Info."
Other Location Info
The Arroyo Conejo Invasive Plant Removal project (Project) is located 1.8 miles downstream of Hillcrest Drive in Thousand Oaks, California, within Ventura County. The Project site can be located using the following information: Latitude 34.19122°, Longitude - 118.91641°; Assessor’s Parcel Numbers: 667-0-072-075, 663-0-060-185, 526-0-150-225, 526-0-162-195, and 526-0-110-385.

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Type – Class 33; California Code of Regulations, title 14, section 15333
Reasons for Exemption
This project is less than five acres, will not significantly impact any sensitive resources, and will remove non-native vegetation from the area.
County Clerk


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