Orinda Water Treatment Plant Disinfection Improvements Project


SCH Number
Lead Agency
East Bay Municipal Utility District
Document Title
Orinda Water Treatment Plant Disinfection Improvements Project
Document Type
NOP - Notice of Preparation
Project Applicant
East Bay Municipal Utility District
Present Land Use
Utility/Public, Semipublic, and Utility District (PS)/Utility

Document Description
The Project includes demolition of an existing maintenance building and construction of a new disinfection facility comprised of a new above-ground two-story maintenance and ultra-violet electrical (MAUVE) building with a below-grade UV structure and a below-grade chlorine contact basin (CCB), two electrical buildings, a standby generator, pipelines and vaults, and other supporting facilities. The MAUVE building with UV structure and the CCB would be adjacent and fully integrated facilities. Maintenance activities and associated uses previously housed in the existing maintenance building that will be demolished will be incorporated into the Project disinfection facility and grounds maintenance building with associated parking at the Orinda WTP site. The Project will also remove vegetation, replace existing and install new security fencing, and restore and landscape the site following construction.

Contact Information
Chien Wang
East Bay Municipal Utility District
375 11th Street
Oakland, CA 94607

Phone : (510) 287-1086


37°53'32.6"N 122°12'00.5"W
Contra Costa
Cross Streets
Camino Pablo Manzanita Drive
Total Acres
Parcel #
263-110-004-3 , 263-100-001-1
State Highways
San Pablo Creek
El Sob

Notice of Completion

Review Period Start
Review Period End
Development Type
Water Facilities (water disinfecti Type, 200 (maximum) MGD)
Local Action
Approval for Water Treatment Plant Project
Project Issues
Aesthetic/Visual Air Quality Archaeologic-Historic Biological Resources Geologic/Seismic Noise Public Services Soil Erosion/Compaction/Grading Toxic/Hazardous Traffic/Circulation Vegetation Water Quality Water Supply Cumulative Effects
Reviewing Agencies
California Department of Fish and Wildlife, Bay Delta Region 3 California Department of Parks and Recreation California Department of Transportation, District 4 California Energy Commission California Highway Patrol California Public Utilities Commission California Regional Water Quality Control Board, San Francisco Bay Region 2 Department of Toxic Substances Control Department of Water Resources Office of Emergency Services, California Resources Agency State Water Resources Control Board, Division of Drinking Water State Water Resources Control Board, Divison of Financial Assistance California Native American Heritage Commission


Environmental Document
Notice of Preparation - Orinda Water Treatment Plant Disinfection Improvements Project   PDF 1687 K
Letter   PDF 231 K NOC   PDF 2195 K
State Comments
2019080297_NAHC_NOP Orinda Water Treatment Plant Disinfection Improvements Project 8   PDF 167 K

Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613. For more information, please visit OPR’s Accessibility Site.

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