RWCF Modifications ProjectEast Bank OutfallSupplemental Environmental Impact Report Council Water Committee
October 13, 2022
Agenda Item No. 3.2
RWCF Modifications ProjectSupplemental EIR (SEIR)
Original EIR
Use existing pipelines to convey to existing outfall on west bank CEQA and permitting to proceed to meet schedule
EIR certified at Council Meeting on July 29, 2019
Install temporary pipelines to serve until new outfall permitted and constructed Temporary solution for approximately five years
Purpose of East Bank Outfall: Consolidate operations on Main Plant (east side of River) Avoid cost of temporary pipelines and structures of about $1M Allow gravity discharge more than 90% of time
Comply with NPDES Discharge Permit
Work No Longer Needed (Temporary)
East Bank Outfall Construction
East Bank Outfall (EBO) SEIR
Evaluation
Located formerly-used outfall pipe through levee (circa 1970s) Considered its use for east bank outfall
Determined acceptable for EBO
Updated Design
Pipe suitable for reuse with lining
Modify Final Effluent Pump Station (FEPS)
Reroute effluent pipeline to existing outfall pipe
Extend existing outfall pipe out and down into river
East Bank Outfall SEIR
Resources Analysed In the SEIR
Hydrology
Water Quality
Terrestrial Biology
Aquatic Biology
Permitting
Central Valley Flood Protection Board (Flood Board)-complete Reclamation District 404 - in progress
Corp of Engineers (COE) - in progress
Endangered Species Act (ESA): National Marine Fisheries Service (NMFS), Biological Assessment & Biological Opinion California State Lands Commission Lease
EIR Process
Notice of Availability 2-25-22
Comment Period 2-25-22 to 4-11-22
Final EIR
Findings of Fact
Mitigation Monitoring and Reporting Program (MMRP)
Council Consideration of Final EIR
Findings
No significant and unavoidable impacts
Less-than-significant impacts
Hydrology
Water Quality
Less-than-significant impacts with mitigation
Terrestrial biology
Aquatic biology
East Bank OutfallSupplemental Environmental Impact Report Summary of Requested Actions
Adopt a resolution to certify that the Final Supplemental Environmental Impact Report (SEIR) prepared for the Regional Wastewater Control Facility (RWCF) Modifications Project has been completed in compliance with the California Environmental Quality Act, and finds the Final EIR adequately addresses the environmental issues of the RWCF Modifications Project Adopt the Findings of Fact
Adopt the Mitigation Monitoring and Reporting Program
Authorize City Manager to execute a lease agreement with the California State Lands Commission
Recommendation
Forward item to the City Council for consideration and approval 10