Wet Weather Flow Management Project

2 Documents in Project


SCH Number
Lead Agency
Mid-Coastside Sewer Authority
Document Title
Wet Weather Flow Management Project
Document Type
MND - Mitigated Negative Declaration
Present Land Use
Residential, Public

Document Description
The proposed project consists of installing two parallel, approximately 700-foot, 60-inch-diameter reinforced concrete under ground storage pipes to temporarily store excess sewage during peak flows or a storm event. The project site is located within a grassy field area known as Burnham Strip, between Highway 1 (Cabrillo Highway) and El Granada, from Coronada Avenue to Capistrano Road. As the peak flows subside, the sewage would drain from the pipes by gravity to the Portola Pump Station wet well. The storage pipes would be installed immediately east of the Montara interceptor pipeline, and would provide approximately 205,000 gallons of storage. An approximately 15-inch-diameter pipeline would connect witht he existing 15-inch Montara Interceptor.

Contact Information
John Foley III
Sewer Authority Mid-Coastside (SAM)
1000 N. Cabrillo Highway
Half Moon Bay, CA 94019

Phone : (650) 726-0124


Half Moon Bay
San Mateo
Cross Streets
Between Highway 1 and Obispo Road, from Coronado Ave. and Capistrano Rd.
State Highways
Carbillo Highway
Wilkinson School and Picasso Preschool
Other Location Info
El Granada

Notice of Completion

Review Period Start
Review Period End
Development Type
Other (A 600,000-gallon tank or 8,850-foot pipeline)
Local Action
Other Action
Project Issues
Air Quality Archaeologic-Historic Biological Resources Drainage/Absorption Flood Plain/Flooding Geologic/Seismic Noise Public Services Schools/Universities Soil Erosion/Compaction/Grading Toxic/Hazardous Traffic/Circulation Water Quality
Reviewing Agencies
California Department of Parks and Recreation Department of Fish and Wildlife, Region 3 Department of Toxic Substances Control Department of Water Resources Native American Heritage Commission Regional Water Quality Control Board, Region 2 Resources Agency Resources, Recycling and Recovery San Francisco Bay Conservation and Development Commission State Water Resources Control Board, Division of Water Rights Caltrans, District 4
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