Morro Bay-Cayucos Wastewater Treatment Plant Upgrade

5 Documents in Project


SCH Number
Lead Agency
Morro Bay, City of (City of Morro Bay)
Document Title
Morro Bay-Cayucos Wastewater Treatment Plant Upgrade
Document Type
EIR - Draft EIR

Document Description
The proposed project would provide full secondary treatment for all effluent discharged through the WWTP ocean outfall and provide tertiary filtration capacity equivalent to the peak season dry weather flow (PSDWF) of 1.5 million gallons per day (mgd). The tertiary filtered effluent would meet Title 22 standards for disinfected secondary-23 recycled water and as such could be used for limited beneficial uses. The proposed project would accommodate future improvements to produce disinfected tertiary recycled water for unrestricted use in accordance with Title 22 standards. The City of Morro Bat and Cayucos Sanitary District (collectively "MBCSD") anticipated reclaimed water end uses would include, but not be limited to, treatment process applications onsite at the WWTP, landscape irrigation around the perimeter of the WWTP, and offsite municipal and industrial (M&I) applications such as dust control, soil compaction, street cleaning, municipal landscape irrigation, and agricultural. Once the new treatment plant is constructed and brought online, the existing treatment plant would be demolished. The existing onsite composting program at the WWTP would be discontinued.

Contact Information
Rob Livick
City of Morro Bay
955 Shasta Avenue
Morro Bay, CA 93442



35°22'41.68"N 120°51'39.29"W
Morro Bay
San Luis Obispo
Cross Streets
Atascadero Road and Embarcadero
Total Acres
Parcel #
066-331-032, 033-034; 066-333-002, 003
State Highways
Hwy 1, 41
Morro Bay High
Morro Creek, Toro Creek, Estero Bay, Morro Bay

Notice of Completion

Review Period Start
Review Period End
Development Type
Water Facilities (WWTp Tertiary Type, 1.5 MGD)
Local Action
Local Coastal Permit Use Permit
Project Issues
Cumulative Effects Landuse Growth Inducing Water Quality Traffic/Circulation Toxic/Hazardous Solid Waste Soil Erosion/Compaction/Grading Sewer Capacity Schools/Universities Recreation/Parks Public Services Population/Housing Balance Noise Geologic/Seismic Flood Plain/Flooding Drainage/Absorption Coastal Zone Biological Resources Archaeologic-Historic Air Quality Aesthetic/Visual
Reviewing Agencies
California Coastal Commission State Water Resources Control Board, Divison of Financial Assistance California Department of Parks and Recreation California Department of Public Health California Highway Patrol California Public Utilities Commission Caltrans, District 5 Department of Fish and Wildlife, Region 4 Department of Toxic Substances Control Department of Water Resources Native American Heritage Commission Regional Water Quality Control Board, Region 3 Resources Agency Resources, Recycling and Recovery
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