Lake Ranch Reservoir Outlet Works Improvements

5 Documents in Project


SCH Number
Lead Agency
Santa Clara County
Document Title
Lake Ranch Reservoir Outlet Works Improvements
Document Type
MND - Mitigated Negative Declaration
Present Land Use
Park & Reservoir/Hillside/Hillside/Regional Parks, Existing

Document Description
San Jose Water Co. is proposing to rehabilitate the Lake Ranch Reservoir in accordance with CA Division of Safety of Dams (DSOD) requirements. The reservoir was built between 1874-1876, with a capacity of about 70 million gallons. Due to the age of the embankments and lack of details on original construction, SJWC proposes to construct siphons over both dams and grout the existing outlet pipes, rather than replace them. Based on the DSOD's drawdown requirements, the siphon at Saratoga dam will consist of a 12-inch diameter pipe. At Beardsley dam, the siphon will consist of a 4-inch diameter pipe with 16-inch emergency pipe. The siphons will be constructed using high density polyethylene piping. The pipes will be buried and concrete-encased where they cross over the dam abutments, and will be mounted on the lake bottom with floating intakes.

Contact Information
Kimberly Brosseau
Santa Clara County
Lead/Public Agency
298 Garden HIll Drive
Los Gatos, CA 95032

Phone : (408) 355-2230


37°13'12"N 122°3'10"W
Santa Clara
Cross Streets
Skyline Blvd./Gist Rd.
Total Acres
Parcel #
State Highways
Lyndon Canyon Creek, unnamed tributary to Sanborn Creek

Notice of Completion

Review Period Start
Review Period End
Development Type
Water Facilities (Type reservoir)
Local Action
Project Issues
Biological Resources Cultural Resources Flood Plain/Flooding Geology/Soils Hydrology/Water Quality Recreation Transportation Vegetation Wetland/Riparian
Reviewing Agencies
California Air Resources Board (ARB) California Department of Conservation (DOC) California Department of Parks and Recreation California Department of Transportation, District 4 (DOT) California Native American Heritage Commission (NAHC) California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB) Resources Agency Resources, Recycling and Recovery San Francisco Bay Conservation and Development Commission (BCDC) State Water Resources Control Board, Division of Drinking Water State Water Resources Control Board, Division of Water Rights State Water Resources Control Board, Divison of Financial Assistance California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW)

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.

Download CSV New Search Print