Memorial Park Wastewater Treatment Facilities Improvement Project


SCH Number
Lead Agency
San Mateo County
Document Title
Memorial Park Wastewater Treatment Facilities Improvement Project
Document Type
MND - Mitigated Negative Declaration
Present Land Use
The zoning in most of the park is classified as RM (Resource Management). Adjacent to the park is land that is classified R-1 (One-Family Residential District) and TPZ (Timberland Preserve Zone) (County of San Mateo, 2017a). The County's Land Use Map shows the park as designated Rural and Public Recreation (San Mateo County, 2017b}. Adjacent lands are designated for low density residential, open space, timber production, and private recreation uses.

Document Description
The San Mateo County Parks Department and the Department of Public Works (hereafter referred to generally as the County) propose to implement the Memorial Park Wastewater Treatment Facilities Improvement Project within unincorporated San Mateo County, California. The proposed project includes improvements to the existing wastewater treatment system, including replacement of the existing wastewater treatment plant (WWTP), repairs and/or Replacement of pipes and manholes, and other necessary upgrades to the system from wastewater conveyance to disposal. Activities are proposed to occur in Memorial Park, which is near the community of Loma Mar, in unincorporated San Mateo County, California. Project construction would occur in phases. Phase 1, which would involve improvements to the WWTP, would begin in 2019 and be completed over an approximately 12-month period. Phase 2 would involve improvements to the wastewater collection system, and would also occur over an approximately 12-month period. The two phases could overlap by approximately 6 months. Construction activities would take place during daytime hours from 7:00 a.m. and 4:00 p.m., Monday through Friday.

Contact Information
Gilles Tourel
County of San Mateo Department of Public Works
555 County Center, 5th Floor
Redwood City, CA 94063-1665

Phone : (650) 363-4100


37°16'29.90"N 122°17'38.68"W
Loma Mar
San Mateo
Cross Streets
Pescadero Creek Road and Sequoia Flat Road
Total Acres
Parcel #
082080160, 084080030, 084070120
Exploring New Horizons Outdoor School
Pescadero Creek

Notice of Completion

Review Period Start
Review Period End
Development Type
Waste Treatment:Other (municipal; 30,00 MGD)
Local Action
Wastewater treatment
Project Issues
Aesthetic/Visual Agricultural Land Air Quality Archaeologic-Historic Biological Resources Flood Plain/Flooding Forest Land/Fire Hazard Geologic/Seismic Minerals Noise Population/Housing Balance Public Services Recreation/Parks Septic System Sewer Capacity Soil Erosion/Compaction/Grading Solid Waste Toxic/Hazardous Traffic/Circulation Vegetation Water Quality Water Supply Wetland/Riparian Land Use Cumulative Effects
Reviewing Agencies
Air Resources Board, Transportation Projects Cal Fire California Department of Fish and Wildlife, Bay Delta Region 3 California Department of Parks and Recreation California Department of Transportation, District 4 California Regional Water Quality Control Board, San Francisco Bay Region 2 Department of Toxic Substances Control Department of Water Resources Office of Historic Preservation Resources Agency State Water Resources Control Board, Division of Drinking Water State Water Resources Control Board, Divison of Financial Assistance California Native American Heritage Commission


Environmental Document
Memorial Park WWTP Faclities IS-MND   PDF 4301 K NOA_Summary Form   PDF 262 K
2nd page of NOC   PDF 321 K NOC   PDF 570 K
State Comments
065 nahc   PDF 1165 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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