Seminary Pump Station Project


SCH Number
Lead Agency
Marin County
Document Title
Seminary Pump Station Project
Document Type
MND - Mitigated Negative Declaration
Present Land Use
MF2 Multi-Family Residential (1 to 4 units per acre, FAR .1 to .3); R2 (Residential, Two Family)

Document Description
The goal of the project is to alleviate flooding at the intersection of Redwood Highway Frontage Road and De Silva Island Drive east of US 101. The project includes construction of a stormwater pump station, a new PG&E electrical panel and backup generator, and a series of the 3 buried vaults to house a wet well, valves, and a stormwater discharge structure. The pumps would be sized to convey the amount of stormwater anticipated from the 25 yr storm event out through the existing gravity main during high tide conditions and prevent backup and flooding of the intersection.

Contact Information
Tim Haddad
Marin County Community Development Agency
3501 Civic Center Drive, Room 308
San Rafael, CA 94903

Phone : (415) 499-6269


37°53'19.6"N 122°30'51.6"W
Mill Valley
Cross Streets
Redwood Highway Frontage Rd and De Silva Court
Total Acres
Parcel #
State Highways
Richardson Bay

Notice of Completion

Review Period Start
Review Period End
Development Type
Water Facilities (stormwater pump Type)
Local Action
Other Action Other Action: pump station
Project Issues
Air Quality Archaeologic-Historic Biological Resources Geologic/Seismic Toxic/Hazardous Water Quality
Reviewing Agencies
California Department of Fish and Wildlife, Bay Delta Region 3 California Department of Parks and Recreation California Department of Transportation, District 4 California Highway Patrol California Native American Heritage Commission California Regional Water Quality Control Board, San Francisco Bay Region 2 Department of Water Resources Office of Emergency Services, California Office of Historic Preservation Resources Agency State Water Resources Control Board, Division of Water Rights State Water Resources Control Board, Divison of Financial Assistance

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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