The Unit W Wastewater Interceptor Condition Assessment Project (Streambed Alteration Agreement No. EPIMS-VEN-26963-R5)
3 Documents in Project
Summary
SCH Number
2021120485
Lead Agency
City of Thousand Oaks
Document Title
The Unit W Wastewater Interceptor Condition Assessment Project (Streambed Alteration Agreement No. EPIMS-VEN-26963-R5)
Document Type
NOD - Notice of Determination
Received
Posted
11/10/2025
Document Description
The California Department of Fish and Wildlife (CDFW) has amended Lake and Streambed Alteration Agreement No. EPIMS-VEN-26963-R5, pursuant to Section 1602 of the Fish and Game Code to The City of Thousand Oaks (Permittee), as represented by Nader Heydari.
The Project is limited to assessing the internal condition of the Unit W Interceptor and replacing broken isolation valves. The Project consists of nine components: creation of four temporary culvert creek crossings clearing of an area for staging and valve replacement for structure W-A, temporary excavation for installation of pipe access tees in two areas, shapell lateral valve replacement, and structure W-D and W-1 valve replacement. In 2025, a storm blew out materials related to the four crossings. The Agreement was amended to include differing materials and methodology for the temporary creek crossings. No new impacts will occur and the new crossing materials will fully span the creek, no materials will be placed in the channel.
Contact Information
Name
Angela Castanon
Agency Name
Department of Fish and Wildlife South Coast Region 5
Job Title
Environmental Scientist
Contact Types
Responsible Agency
Phone
Name
Nader Heydari
Agency Name
City of Thousand Oaks
Job Title
Public Works Director
Contact Types
Lead/Public Agency
Phone
Email
Location
Coordinates
Cities
Thousand Oaks
Counties
Ventura
Regions
Southern California
Parcel #
667-0-120-240 and 667-0-120-160
Other Location Info
The Unit W Interceptor Project (Project) is located at the terminus of Hill Canyon Road in Thousand Oaks, California, within Ventura County; and can be located using the following information: Latitude 34.20633, Longitude: - 118.91822; Assessor’s Parcel Numbers (APNs) 667-0-120-240 and 667-0-120-160.
Notice of Determination
Approving Agency
CDFW
Approving Agency Role
Responsible Agency
Approved On
County Clerk
Ventura
Final Environmental Document Available at
The Mitigated Negative Declaration prepared for the Project is available to the general public at the office location listed above for the Lead Agency. CDFW’s record of project approval as a Responsible Agency is available at CDFW’s regional office.
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
No
Attachments
Notice of Determination
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