Robert B. Diemer Treatment Plant North Access Road

6 Documents in Project


SCH Number
Lead Agency
Metropolitan Water District of Southern California
Document Title
Robert B. Diemer Treatment Plant North Access Road
Document Type
EIR - Draft EIR
Present Land Use
Pub Fac, Agricultural (A-1); Natural OS, Carbon Cyn Rd, Carbon Cyn SP; Rec & Ops; Area Plan - Shell Prpty, Shell MP Com SP

Document Description
A secondary access (north access road) is being proposed on the north side of the Diemer Plant to provide an emergency access point, greater Plant security, and an additional supplemental route to the Diemer Plant. The project is also being proposed to improve safety in the Chino Hills State Park.

Contact Information
Deirdre West
Metropolitan Water District of Southern California
Lead/Public Agency
700 N. Alameda Street
Los Angeles, CA 90012

Phone : (213) 217-6696


Cross Streets
Carbon Canyon Road and Telegraph Canyon Trail
Total Acres
State Highways
SR-142, SR-57
Telegraph Creek and Carbon Canyon Creek

Notice of Completion

Review Period Start
Review Period End
Development Type
Other (Access road to water treatment plant)
Project Issues
Aesthetics Air Quality Cultural Resources Cumulative Effects Drainage/Absorption Flood Plain/Flooding Geology/Soils Growth Inducement Hazards & Hazardous Materials Hydrology/Water Quality Land Use/Planning Noise Recreation Transportation Vegetation Wetland/Riparian Wildfire Wildlife
Reviewing Agencies
Cal Fire California Department of Health Care Services (DHCS) California Highway Patrol California Regional Water Quality Control Board, Santa Ana Region 8 (RWQCB) Department of Toxic Substances Control Department of Water Resources Office of Historic Preservation Resources Agency California Native American Heritage Commission (NAHC) California Department of Parks and Recreation California Department of Fish and Wildlife, South Coast Region 5 (CDFW) California Department of Transportation, District 12 (DOT)

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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