El Monte Pipeline No 2
Summary
SCH Number
2026060425
Lead Agency
City of San Diego
Document Title
El Monte Pipeline No 2
Document Type
MND - Mitigated Negative Declaration
Received
Present Land Use
AR-1-1, Public Right-of-Way
Document Description
The project proposes rehabilitation and repairs along 12.2 miles of the existing El Monte Pipeline, including the Grossmont Tunnel. The purpose of the rehabilitation is to extend the pipeline’s service life, enhance operational efficiency, and improve reliability. Improvements are proposed at approximately 69 locations comprising 1.35 acres along the existing pipeline, including improvements to and reconstruction of existing appurtenances, such as air valves, blowoffs, and access structures; installation of new isolation valves; and open trench replacement of approximately 450 feet of deteriorated pipeline along El Monte Road. The project would also include repairs to curbs and gutters, sidewalks, and Americans with Disabilities Act (ADA) ramps at affected intersections, repairs to ornamental landscape in previously developed areas and native plant revegetation in open space areas. The pipeline alignment is located in the cities of Santee, La Mesa, El Cajon, and San Diego and the unincorporated community of Lakeside. The project is approximately 12.2 miles long and extends from near Lake Jennings in the northeast to the Alvarado Water Treatment Plant at Lake Murray in the southwest (Navajo Community Planning Area, Council District 7).
Contact Information
Name
Nancy Graham
Agency Name
City of San Diego
Job Title
Program Manager
Contact Types
Lead/Public Agency / Project Applicant
Phone
Email
Location
Coordinates
Cities
El Cajon, La Mesa, Lakeside, San Diego, Santee
Counties
San Diego
Regions
Southern California
Zip
91942
State Highways
SR-52, I-8, SR 67
Railways
MTS
Airports
Gillespie Field
Schools
La Mesa-Spring Valley SD, Lakeside Union SD, Cajon Valley SD
Waterways
Lake Murray, Lake Jennings
Other Location Info
Navajo Community Planning Area (City of San Diego Council District 7)
Other Information
Zip Codes: 91942, 92020, 92071, 92040
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 Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of Toxic Substances Control (DTSC), California Department of Transportation, District 11 (DOT), California Department of Transportation, Division of Aeronautics (DOT), California Department of Transportation, Division of Transportation Planning (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 Regional Water Quality Control Board, San Diego Region 9 (RWQCB), California State Lands Commission (SLC), Office of Historic Preservation, State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Division of Drinking Water, District 14, State Water Resources Control Board, Division of Drinking Water, District 26, 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 (Pipeline)(Type Pipeline, MGD 0.000001)
Local Actions
Site Development Permit
Project Issues
Air Quality, Biological Resources, Cultural Resources, Archeological/Historical
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
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