Annual Temporary Flume (Streambed Alteration Agreement No. 1600-2017-0267-R5)


SCH Number
Public Agency
California Department of Fish and Wildlife, Region 5 (CDFW)
Document Title
Annual Temporary Flume (Streambed Alteration Agreement No. 1600-2017-0267-R5)
Document Type
NOE - Notice of Exemption
Document Description
California Department of Fish and Wildlife has executed Streambed Alteration Agreement number 1600-2017-0267-R5, pursuant to Section 1602 of the Fish and Game Code to the City of Thousand Oaks Hill Canyon Wastewater Treatment Plant represented by Santo Marquez. The project as proposed is a condition of the annual installation of a Parshall flume (flume) at the above described location. A flume has been installed at this location annually since 2000. The flume is a fiberglass hydraulic metering device placed within the stream to measure flow of water. Its has a 2.5 foot wide opening wide allowing water to funnel through a sandbag wall installed on either side to direct water towards the opening. The sandbag wall will beapproximately 3 to 4 feet wide and approximately 60 feet long. The sandbag wall will be covered the heavy duty plastic sheeting that is resistant to ultraviolet light. The flume will act as a temporary meter to measure the flow of water within the creek during the months of June through September as required by the City of Thousand Oaks. It will be installed in the last week of May and removed during the first week of October. Both installation and removal will primarily be done manually and will take place over the course of one day each. A Versahandler, with extendable forks, will be used to tranport the flume and pre-filled sandbags to the stream. The Vershandler will never enter the water. The area where the flume is installed, about 20 square feet, will be leveled by hand. The flume will be attached to the forks of the Versahandler and extended out to the leveled area within the creek. Pre-filled sandbags will be conveyed from the forklift, via "bucket brigade" and manually placedin the creek. Access to the stream will be from the existing paved road and dirt road on the east side of the stream. However, no vegetation exists on the roads, therefore, no vegetation will be impacted from installation of this project.

Contact Information

Sarah Rains
Agency Name
California Department of Fish and Wildlife, Region 5
Contact Types
Lead/Public Agency


Cross Streets
9600 Santa Rosa Road
Arroyo Conejo Creej, Hill Canyon Wastewater Treatment Plant

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
S: 15304, 15306
Reasons for Exemption
The project takes place on an area less than 500 acres with no permanent impact on the environment. The purpose of the project is to gather flow data and it does not result in any major disturbance to an environmental resource.

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613.

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