Pine Mountain Tunnel Tanks Project

4 Documents in Project


SCH Number
Lead Agency
Marin Municipal Water District
Document Title
Pine Mountain Tunnel Tanks Project
Document Type
MND - Mitigated Negative Declaration
Present Land Use
Vacant/Open Area/Open Space, Agricultural and Conservation
Document Description
Constructed in the late 1910s to convey water from Alpine Reservoir to Fairfax and San Rafael, Pine Mountain Tunnel was converted to a water storage facility in 1971 and remains in that use today. Marin Water proposes to cease using the Pine Mountain Tunnel for water storage, and to replace the existing storage by building two, 2-million-gallon concrete water storage tanks on Marin Water's watershed property. The tanks would be connected to an existing 30-inch pipeline in Concrete Pipe Road with minimal piping interconnecting the tanks. No Project-related activity is anticipated at the Pine Mountain Tunnel site, other than draining the Tunnel when the replacement tanks have been commissioned and are in use.

Contact Information

Alex Anaya
Agency Name
Marin Municipal Water District
Contact Types
Lead/Public Agency


Unincorporated Marin County
San Francisco Bay Area
Cross Streets
Bolinas Road adn Concrete Tank Road
Total Acres
Parcel #
Ross Valley Charter School
Bon Tempe Lake, Alpine Lake
Mt. Diab
Other Location Info
Nearest Community: Fairfax

Notice of Completion

State Review Period Start
State Review Period End
State Reviewing Agencies
California Air Resources Board (ARB), California Department of Conservation (DOC), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of Transportation, District 4 (DOT), California Department of Water Resources (DWR), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB), California State Lands Commission (SLC), Department of Toxic Substances Control, Office of Historic Preservation, State Water Resources Control Board, Division of Water Quality, State Water Resources Control Board, Divison of Financial Assistance, California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW)
State Reviewing Agency Comments
California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW)
Development Types
Water Facilities (Water Storage Tanks)(Type Storage, MGD 4)
Local Actions
Site Plan
Project Issues
Aesthetics, Air Quality, Biological Resources, Drainage/Absorption, Flood Plain/Flooding, Noise, Population/Housing, Public Services, Recreation, Septic System, Sewer Capacity, Solid Waste, Vegetation, Agricultural Land, Archeological/Historical, Forest Land/Fire Hazard, Geologic/Seismic, Minerals, Soil Erosion/Compaction/Grading, Toxic/Hazardous, Traffic/Circulation, Water Quality, Water Supply/Groundwater, Wetland/Riparian, Land Use, Cumulative Effects


Draft Environmental Document [Draft IS, NOI_NOA_Public notices, OPR Summary Form, Appx,]
Notice of Completion [NOC] Transmittal form
State Comment Letters [Comments from state reviewing agencies]

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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