San Jose Creek Water Reclamation Plant Stage III Primary Sedimentation System Expansion

Summary

SCH Number
2023010216
Lead Agency
Los Angeles County Sanitation District
Document Title
San Jose Creek Water Reclamation Plant Stage III Primary Sedimentation System Expansion
Document Type
MND - Mitigated Negative Declaration
Received
Document Description
The proposed project would include the following components: construction of two new Primary Sedimentation Tanks, extension of Channel 1 and Gallery 1, and repairs to the concrete and liner for Channel 2 and the Step Feed Channels at the SJCWRP. The proposed project would include construction of two new Primary Sedimentation Tanks (Tanks 6 and 7) along the southeast corner of the SJCWRP. The new Primary Sedimentation Tanks would be located south of the existing Primary Sedimentation Tanks and would be built to match the existing dimension and treatment capacity of the existing tanks. The Channel 1 and Gallery 1 structures are located near the inlet side of the existing Primary Sedimentation Tanks. The extensions would be constructed to match the existing design and would be approximately 42 feet long and 11 feet 10 inches wide. All corroded concrete and steel would be replaced at Channel 2 and the Step Feed Channels. Reinforcing steel that is corroded and has rust would be removed and replaced with new reinforcing steel. A bonding agent would be used to coat reinforcing steel and the surfaces of the existing concrete. The corroded channels would be restored to the original dimensions by installing concrete repair material. Damaged PVC liners would be removed and replaced. Operation of the project would require small mechanical equipment of approximately 5 horsepower and a chopper pump motor rated at 50 horsepower.

Contact Information

Name
Marvin Holmes
Agency Name
County Sanitation Districts of Los Angeles County
Job Title
Project Engineer
Contact Types
Lead/Public Agency

Location

Cities
Whittier
Counties
Los Angeles
Regions
Southern California
Cross Streets
Crossroads Pkwy and Workman Mill Rd
Zip
90601

Notice of Completion

State Review Period Start
State Review Period End
State Reviewing Agencies
California Air Resources Board (ARB), California Department of Fish and Wildlife, South Coast Region 5 (CDFW), California Department of Parks and Recreation, California Department of Transportation, District 7 (DOT), California Department of Water Resources (DWR), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Public Utilities Commission (CPUC), California Regional Water Quality Control Board, Los Angeles Region 4 (RWQCB), California State Lands Commission (SLC), Department of Toxic Substances Control, Office of Historic Preservation, San Gabriel and Lower Los Angeles Rivers and Mountains Conservancy (RMC), State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Division of Drinking Water, District 7, State Water Resources Control Board, Division of Water Quality, State Water Resources Control Board, Divison of Financial Assistance
Development Types
Other (Expansion of Existing Tanks at Water Reclamation Plant)
Local Actions
General Plan Element
Project Issues
Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Drainage/Absorption, Energy, 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, Population/Housing, Public Services, Recreation, Schools/Universities, Septic System, Sewer Capacity, Solid Waste, Transportation, Tribal Cultural Resources, Utilities/Service Systems, Vegetation, Wetland/Riparian, Wildfire
Local Review Period Start
Local Review Period End

Attachments

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