Delta Diablo Secondary Process Improvements
2 Documents in Project
Summary
SCH Number
2024080857
Lead Agency
Delta Diablo Sanitation District
Document Title
Delta Diablo Secondary Process Improvements
Document Type
MND - Mitigated Negative Declaration
Received
Present Land Use
Industrial/Light Industrial
Document Description
The Project would include a new secondary clarifier, new aeration basin, new 42-inch air header, new return activated sludge pump station, improvements to the primary influent pump station and blower building, secondary clarifier splitter box, and pipelines. All construction activity would be conducted within the existing treatment plant boundary; a vacant parcel owned by the District near the entrance to the WWTP would be used for staging, stockpiling of materials, and construction office trailers and parking. The District intends to construct these facilities as a single project, however given the uncertainty with project costs, may elect to construct the facilities in phases.
Contact Information
Name
Sean Williams
Agency Name
Delta Diablo
Job Title
Associate Engineer
Contact Types
Lead/Public Agency / Project Applicant
Phone
Email
Location
Coordinates
Cities
Antioch, Bay Point (Unincorporated), Pittsburg
Counties
Contra Costa
Regions
Citywide
Cross Streets
Arcy Land and Pittsburg-Antioch Highway
Zip
94509
Total Acres
25
Parcel #
083-230-037 and 074-040-037
State Highways
Highway 4
Railways
Burlington Northern and Santa Fe
Airports
NA
Schools
Martin Luther King Jr. Junior High School, Freemont Elementary
Waterways
New York Slough, San Joaquin River
Township
2N
Range
1E
Other Location Info
Base: Los medanos
Notice of Completion
State Review Period Start
State Review Period End
State Reviewing Agencies
California Air Resources Board (ARB), California Coastal Commission (CCC), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Fish and Wildlife, North Central Region 2 (CDFW), California Department of Parks and Recreation, California Department of Toxic Substances Control (DTSC), California Department of Transportation, District 4 (DOT), California Department of Water Resources (DWR), California Governor's Office of Emergency Services (OES), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Public Utilities Commission (CPUC), California San Joaquin River Conservancy (SJRC), California State Lands Commission (SLC), Central Valley Flood Protection Board, Delta Protection Commission, Delta Stewardship Council, Office of Historic Preservation, San Francisco Bay Conservation and Development Commission (BCDC), State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Division of Drinking Water, District 4, State Water Resources Control Board, Division of Water Quality, State Water Resources Control Board, Divison of Financial Assistance, California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB)
State Reviewing Agency Comments
California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB)
Development Types
Waste Treatment:Sewer (Improvements to secondary processes within existing facility.)(MGD 19.5)
Local Actions
Wastewater Treatment Improvements
Project Issues
Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Energy, Geology/Soils, Greenhouse Gas Emissions, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mandatory Findings of Significance, Mineral Resources, Noise, Population/Housing, Public Services, Recreation, Transportation, Tribal Cultural Resources, Utilities/Service Systems, Wildfire
Public Review Period Start
Public Review Period End
Attachments
Draft Environmental Document [Draft IS, NOI_NOA_Public notices, OPR Summary Form, Appx,]
Notice of Completion [NOC] Transmittal form
State Comment Letters [Comments from State Reviewing Agency(ies)]
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