New Installation and Upgrades of Streamgaging Systems Project (CalSIP)
Summary
SCH Number
2025121206
Public Agency
Ventura County Watershed Protection District
Document Title
New Installation and Upgrades of Streamgaging Systems Project (CalSIP)
Document Type
NOE - Notice of Exemption
Received
Posted
12/30/2025
Document Description
The purpose of the project is to upgrade existing stream gaging infrastructure at three sites and install one new gaging station which will contribute to important flow data as a part of the California stream gage network. Watershed Protection District (WPD) has been awarded grant funding through the
Stream Gage Improvement Program (CalSlP) to conduct the improvements. Work involves no new maintenance in the streams, less than 10 square feet of concrete footing and bollards installed in previously disturbed areas, little to no vegetation removal or trimming, and no damage to scenic resources. No substantive increase in maintenance or site visits would occur for the existing stations; monthly to quarterly gage visits for data collection and gage maintenance would occur for the new site at Santa Clara River. The work falls under Categorical Exemption Article 19, Section 15301, Class 1 and Section 15304, Class 4.
Contact Information
Name
Ronald Marotto
Agency Name
Ventura County Watershed Protection District
Job Title
Hydrology Manager
Contact Types
Lead/Public Agency / Project Applicant / Parties Undertaking Project
Phone
Location
Coordinates
Counties
Ventura
Regions
Countywide
Cross Streets
Felix Road and Walnut Ave
Zip
93036
Total Acres
less than 1
Jobs
4
Parcel #
614001019
State Highways
118
Railways
N/A
Airports
N/A
Schools
Township Elementary, Valley View Middle School, Big Springs Elem
Waterways
Tapo Canyon
Township
3N
Range
19 W
Section
N/A
Other Location Info
Arroyo Tapo at Walnut
- Stream gage upgrade
- 34°17’49.70”N 118°43’15.60”W (Site ID 2724-01)
Other Information
Three additional locations:
1. Santa Clara River at RR Bridge above I5 (Likely to move to Torrey Road)
- New stream monitoring gage installation
- 34°25'33.34"N 118°34'44.24"W (Site ID 2719-01)
- (Torrey Rd Location 34°23'41.0"N 118°47'55.4"W)
2. Hopper Creek near Piru CA
- Stream gage upgrade and camera install
- 34°24’02.50”N 118°49’36.30”W (Site ID 2722-01)
3. Lake Casitas at Dam
- Lake level monitoring equipment upgrade
- 34°22’23.00”N 119°19’59.60”W (Site ID 2728-01)
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Class 1, Section 15301, Article 19
Reasons for Exemption
The project falls under Class 1 Section 15301-Existing
Facilities for the upgrades to three existing gage systems because it comprises operation, maintenance, and minor alteration of existing facilities involving negligible or no expansion of use. This includes alterations for the Lake Casitas, and Hopper Creek, and Arroyo Tapo station
upgrades. The new Santa Clara River station at either proposed location would be affixed to an existing bridge or culvert, therefore is also considered minor alteration of an existing facility (bridge). This work will not impact the surrounding habitat or cause ground disturbance.
Exempt Status
Categorical Exemption
Type, Section or Code
Class 4, Section 15304
Reasons for Exemption
Class 4 Section 15304- Minor Alterations to Land applies to the proposed new installation of the camera at Hopper Creek. Minor new concrete placement to support the camera pole in previously disturbed area would occur. Exceptions to the exemptions do not apply.
County Clerk
Ventura
Attachments
Notice of Exemption
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