Caporal Agricultural Reservoir


SCH Number
Lead Agency
Lake County
Document Title
Caporal Agricultural Reservoir
Document Type
MND - Mitigated Negative Declaration
Present Land Use
Agriculture - Orchard

Document Description
The project proposes construction of an Agricultural Reservoir on a 38.63 acre parcel with an existing orchard. The Reservoir will have a maximum capacity of approximately 5.07 acre feet and the surface area of the water will be approximately 0.75 acres. The reservoir will be 14 feet deep with a liner covered with 1 foot of soil. The design includes an inlet with a stand pipe and a trash grate that will allow any over flow to travel through an 18” buried pipe approximately 236 feet to a rocked outlet. The pipe will be placed through the embankment of the reservoir. The overflow outlet culvert is sized for a 100-year storm event and the rock in the outlet is sized to ensure runoff leaving the proposed drainage improvement will not have erosive flow velocities. The overflow will empty into Middle Creek. The proposed project will impact approximately 3.69 acres of the 38.63 acre parcel. The estimated volume of excavation is 9,115 cubic yards and 7,359 cubic yards of fill. Fill will be placed adjacent to the reservoir footprint on the site of a future residence. Prior to residential construction, compaction standards will be met. Any additional fill will be spread in the existing orchard. The area of disturbance has historically been managed for Agriculture and until recently was an orchard. The area of disturbance is ruderal and dominated by non-native grasses.

Contact Information
Tracy Cline
County of Lake Community Development Department
Lead/Public Agency
255 N. Forbes Street
Lakeport, CA 95453

Phone : (707) 263-2221


Cross Streets
Elk Mountain Road

Notice of Completion

Review Period Start
Review Period End
Development Type
Other (Agricultural)
Local Action
Grading Permit
Project Issues
Air Quality Cultural Resources Geology/Soils Hydrology/Water Quality Noise
Reviewing Agencies
California Air Resources Board (ARB) California Department of Conservation (DOC) California Department of Fish and Wildlife, North Central Region 2 (CDFW) California Department of Parks and Recreation California Department of Transportation, District 1 (DOT) California Department of Water Resources (DWR) California Native American Heritage Commission (NAHC) California Natural Resources Agency California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB) Central Valley Flood Protection Board Office of Historic Preservation State Water Resources Control Board, Division of Drinking Water State Water Resources Control Board, Division of Water Rights


Draft Environmental Document [Draft IS, NOI_NOA_Public notices, OPR Summary Form, Appx,]
Caporal Reservoir - Attachment A - Engineered Plans   PDF 5486 K Caporal Reservoir - Attachment B - Drainage Report   PDF 2593 K Caporal Reservoir - Attachment C - Geotechnical   PDF 506 K Caporal Reservoir - Attachment D - Mitigation Monitoring and Reporting Program   PDF 141 K Caporal Reservoir - NOI   PDF 1323 K Caporal Reservoir - Summary_Form_for_Document_Submittal   PDF 580 K Initial Study for Caporal Grading Permit (IS 20-115)   PDF 2796 K
Notice of Completion [NOC] Transmittal form
Caporal Reservoir - NOC - 4-30-21   PDF 266 K

Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, 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. For more information, please visit OPR’s Accessibility Site.

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