Jeffries Tank and Plant Improvements Project


SCH Number
Lead Agency
State Water Resources Control Board
Document Title
Jeffries Tank and Plant Improvements Project
Document Type
MND - Mitigated Negative Declaration
Present Land Use
Residential High (RH) -City of Monrovia Single Family Residence (R-1) -Los Angeles County
Document Description
The Project would include installation of a 1.25 MG above ground potable water storage tank, three booster pumps within a new block building, a new block disinfectant building, and associated fencing, lighting, landscaping, control panels and appurtenances at the Jeffries Plant site. Existing plant site piping would be modified as needed and the existing storage building, chemical building and motor control center (MCC) would be demolished. The existing Jeffries Well 4 currently pumps directly into the distribution system; after implementation of the Project, this well would pump into the proposed tank (see Figure 3a). The Project would not result in increased capacity.

Contact Information

Adrian Dela Calzada
Agency Name
State Water Resources Control Board
Job Title
Environmental Scientist
Contact Types
Lead/Public Agency

George Zakhari
Agency Name
Golden State Water Company - South Arcadia
Job Title
Water Quality Engineer
Contact Types
Project Applicant


Los Angeles
Southern California
Cross Streets
124 West Jeffries Avenue
Parcel #
8511-015-800, 801
Other Location Info
San Bernardino meridian of the U.S. Geological Survey (USGS) 7.5-minute Series El Monte Topographic quadrangle.
Other Information
A portion of the site is located within unincorporated Los Angeles County.

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 Regional Water Quality Control Board, Los Angeles Region 4 (RWQCB), 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, Division of Water Rights, State Water Resources Control Board, Divison of Financial Assistance
Development Types
Water Facilities (water storage tank, booster pumps, building, water treatment)(Type storage tank, MGD 1.25)
Local Actions
Use Permit
Project Issues
Air Quality, Biological Resources, Cultural Resources, Geology/Soils, Hazards & Hazardous Materials, Noise
Local Review Period Start
Local Review Period End


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 or via phone at (916) 445-0613. For more information, please visit OPR’s Accessibility Site.

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