SEIR for Ironhouse Sanitary District Wastewater Treatment Plant Expansion

6 Documents in Project


SCH Number
Lead Agency
Iron House Sanitary District
Document Title
SEIR for Ironhouse Sanitary District Wastewater Treatment Plant Expansion
Document Type
SIR - Supplemental EIR
Present Land Use
Public / Semi-Public

Document Description
Upgrade of Ironhouse Sanitary District's wastewater facilities and increase treatment and disposal capacity from 2.3 mgd to 8.6 mgd. Upgrade alternatives developed in the environmental document include: - Alternative A: Conveyance of treated effluent from ISD into the San Joaquin River for disposal. - Alternative B: Conveyance of raw sewage from ISD to Delta Diablo Sanitation District for treatment and disposal into the New York Slough. - Alternative C: Conveyance of treated effluent from ISD and City of Brentwood into New York Slough for disposal. - Alternative D: Conveyance of treated effluent from ISD and City of Brentwood into the Sacramento River for disposal.

Contact Information
Thomas Williams
Ironhouse Sanitary District
450 Walnut Meadows Drive
Oakley, CA 94561

Phone : (925) 625-2279


Contra Costa
Cross Streets
Walnut Meadows Drive, Vintage Parkway
Total Acres
735 +
Parcel #
037-191-033, 034
State Highways
4, 160
Vintage Parkway ES, Iron House ES, Delta Vista MS, Gehringer ES
San Joaquin River near Jersey Island

Notice of Completion

Review Period Start
Review Period End
Development Type
Waste Treatment:Sewer (Wastewater 8.6 mgd)
Local Action
Other Action Other Action: NPDES
Project Issues
Aesthetic/Visual Agricultural Land Air Quality Archaeologic-Historic Flood Plain/Flooding Geologic/Seismic Noise Public Services Recreation/Parks Sewer Capacity Soil Erosion/Compaction/Grading Toxic/Hazardous Traffic/Circulation Vegetation Water Quality Water Supply Wetland/Riparian Wildlife Cumulative Effects
Reviewing Agencies
Air Resources Board, Major Industrial Projects California Department of Fish and Wildlife, Bay Delta Region 3 California Department of Health Care Services California Department of Parks and Recreation California Native American Heritage Commission California Regional Water Quality Control Board, Central Valley Sacramento Region 5 California State Lands Commission Department of Toxic Substances Control Office of Historic Preservation Resources Agency Resources, Recycling and Recovery California Department of Transportation, District 4 Delta Protection Commission Department of Water Resources

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613.

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