Santa Barbara County and Twitchell Reservoir Cloud Seeding


SCH Number
Lead Agency
Livermore Valley Joint Unified School District
Document Title
Santa Barbara County and Twitchell Reservoir Cloud Seeding
Document Type
NEG - Negative Declaration
Present Land Use
Regional program focused on rural, sparsely populated areas of the Santa Ynez and Cuyama River watersheds.
Document Description
The Santa Barbara County Water Agency proposes to continue the cloud seeding activities currently being implemented. These activities have been ongoing since 1981 and serve to augment natural rainfall to increase available water supplies by inducing higher rates of groundwater basin recharge and runoff into surface reservoirs. The cloudseeding program targets two geographical areas: the Santa Ynez River watershed above Lake Cachuma in Santa Barbara County and the watershed area of the Twitchell Reservoir within Santa Barbara and San Luis Obispo counties.

Contact Information

Brian R. Baca
Agency Name
Santa Barbara County
Contact Types
Lead/Public Agency


Santa Maria, Solvang
San Luis Obispo, Santa Barbara
Parcel #
State Highways
Santa Ynez, Cuyama and Santa Maria Rivers

Notice of Completion

State Review Period Start
State Review Period End
State Reviewing Agencies
Air Resources Board, Major Industrial Projects, Cal Fire, California Department of Conservation (DOC), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Fish and Wildlife, South Coast Region 5 (CDFW), California Department of Health Care Services (DHCS), California Department of Parks and Recreation, California Department of Transportation, District 5 (DOT), California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, Central Coast Region 3 (RWQCB), California State Lands Commission (SLC), Department of Water Resources, Resources Agency, State Water Resources Control Board, Divison of Financial Assistance
Development Types
Water Facilities (Type Cloud Seeding)
Local Actions
Water Supply Program
Project Issues
Drainage/Absorption, Geology/Soils, Growth Inducement, Hydrology/Water Quality, Vegetation, Wetland/Riparian

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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