City of Sacramento Water+ Treatment Plants Resiliency and Improvements Project

City of Sacramento Water+ Treatment Plants Resiliency and Improvements Project

Consistent with the 2035 General Plan, the City is proposing the Water+ Treatment Plants Resiliency and Improvements Project to provide treatment resiliency for changing water quality in both the American and Sacramento Rivers, to address reliability of facilities with infrastructure currently approaching the end of its useful life, and to meet the projected potable water demand. Service area needs are anticipated to exceed the reliable surface water supply and treatment capacity by 2035. By 2050, it is estimated that an additional 150 MGD (410 MGD total) of treated surface water will be required. The proposed project includes the following components: Rehabilitation of infrastructure approaching the end of its effective life at both FWTP and SRWTP to improve treatment reliability; Integration of ozone generation and contact into the treatment process at both FWTP and SRWTP to reduce regulated disinfection byproducts and improve the ability for both treatment plants to address changing river water quality conditions; Installation of pipelines between both of the City's Sacramento River water intakes and SRWTP to assist with cleaning of these facilities; construction and operation of a replacement to the original Sacramento River Water Intake Structure in the Sacramento River and pipelines for transferring water to SRWTP and to improve surface water supply reliability during low river level conditions; Phased construction and operation of additional SRWTP water treatment capacity to match the projected service area needs; Conversion from chlorine gas to sodium hypochlorite as the primary chemical for disinfection of the water to improve facility, City staff, and public safety, and to help protect against reductions in chemical availability; Phased improvement of the water transmission and distribution system in the vicinity of SRWTP to match the demand and address critical hydraulic constrictions.

Sacramento

Sacramento

Northern California

California Air Resources Board (ARB), California Department of Conservation (DOC), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Parks and Recreation, California Department of Resources Recycling and Recovery, California Department of Transportation, District 3 (DOT), California Department of Water Resources (DWR), California Governor's Office of Emergency Services (OES), California Highway Patrol (CHP), California Natural Resources Agency, California Public Utilities Commission (CPUC), Central Valley Flood Protection Board, Delta Protection Commission, Delta Stewardship Council, Department of Toxic Substances Control, Office of Historic Preservation, State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Division of Drinking Water, District 9, State Water Resources Control Board, Division of Water Quality, State Water Resources Control Board, Division of Water Rights, State Water Resources Control Board, Divison of Financial Assistance, California Native American Heritage Commission (NAHC), California Department of Fish and Wildlife, North Central Region 2 (CDFW), California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB)

California Native American Heritage Commission (NAHC), California Department of Fish and Wildlife, North Central Region 2 (CDFW), California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB)

Water Facilities (Municipal Water/Infrastructure)(Type Water , MGD 150)

Infrastructure Improvements

Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Drainage/Absorption, Flood Plain/Flooding, Geology/Soils, Greenhouse Gas Emissions, Growth Inducement, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mandatory Findings of Significance, Mineral Resources, Noise, Public Services, Recreation, Schools/Universities, Solid Waste, Transportation, Tribal Cultural Resources, Utilities/Service Systems, Vegetation, Wetland/Riparian