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
Agency Name
Marin County Community Development Agency
Contact Types
Lead/Public Agency


Mill Valley
Cross Streets
Redwood Highway Frontage Rd and De Silva Court
Total Acres
Parcel #
State Highways
Richardson Bay

Notice of Completion

State Review Period Start
State Review Period End
State Reviewing Agencies
California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Parks and Recreation, California Department of Transportation, District 4 (DOT), California Highway Patrol, California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB), 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
Development Types
Water Facilities (Type stormwater pump)
Local Actions
pump station
Project Issues
Air Quality, Biological Resources, Cultural Resources, Geology/Soils, Hazards & Hazardous Materials, Hydrology/Water Quality

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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