Rocky Ridge Temporary Precipitation Forecasting System Project


SCH Number
Public Agency
Sonoma County Water Agency
Document Title
Rocky Ridge Temporary Precipitation Forecasting System Project
Document Type
NOE - Notice of Exemption
Document Description
The Project consists of a sublease agreement and temporary placement, operation, and maintenance of a precipitation forecasting system at Rocky Ridge, off Bollinger Canyon Road, in Castro Valley, California, with American Towers, LLC. The precipitation information system will improve the region’s early warning capabilities to avoid life-safety threats from potential land sliding, debris flows, flooding, erosion, road hazards or other fire related problems that could be compounded from heavy rain events. The temporary precipitation forecasting system also will give flood control managers, emergency responders, transportation officials, and media outlets more precise information on just where, when, and the intensity of expected rainfall.

Contact Information

Connie Barton
Agency Name
Sonoma County Water Agency
Contact Types
Lead/Public Agency / Project Applicant / Parties Undertaking Project


San Ramon, Santa Rosa
Contra Costa, Sonoma
Northern California, San Francisco Bay Area
Cross Streets
Bollinger Canyon Road, in Castro Valley, California,
Other Location Info
It is just outside the boundaries of Las Trampas Regional Wilderness Park.

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
CEQA Guidelines Sections 15303: New Construction or Conversion of Small Structures, 15306: Information Collection, and 1
Reasons for Exemption
Entering the sublease agreement and temporary placement of a precipitation forecasting information system at Rocky Ridge would not impact a scenic or historical resource and because the Project consists of data collection, research, and resource evaluation activities that would not degrade the quality of the environment and would not result in any significant or cumulative adverse effect upon the environment.
County Clerks
Contra Costa, Sonoma


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