Topham Trunk Line Replacement Project

2 Documents in Project


SCH Number
Lead Agency
Los Angeles Department of Water and Power
Document Title
Topham Trunk Line Replacement Project
Document Type
MND - Mitigated Negative Declaration
Present Land Use
Public Right of Way
Document Description
The Los Angeles Department of Water and Power (LADWP) proposes to install approximately 23,300 linear feet (LF) of a 36-inch diameter underground pipe along Victory Boulevard, Topham Street, and Oxnard Street, in the west San Fernando Valley area of the City of Los Angeles. The installation of the new 36-inch diameter trunk line (referred to herein as the Topham Trunk Line Replacement [TTLR] Project or the proposed project) would replace the aging and deteriorating existing 24-inch Topham Trunk Line to provide greater operational flexibility for water flow and delivery and to improve system redundancy and resiliency. The proposed project would also include approximately 6,599 LF of new 12-inch diameter underground distribution mainline that would connect the proposed TTLR Project to the existing distribution system on Mason Avenue, Victory Boulevard, and Topham Street. In addition, the proposed project would include approximately 3,429 LF of new 16-inch diameter underground distribution mainline that would replace the existing 8-inch diameter distribution mainline on Tampa Avenue, south of Topham Street.

Contact Information

Marshall Styers
Agency Name
Los Angeles Department of Water and Power
Job Title
Environmental Specialist
Contact Types
Lead/Public Agency / Project Applicant


Los Angeles
Los Angeles
Cross Streets
Victory Blvd, Topham St, Oxnard St
State Highways
Van Nuys
Pierce College
Los Angeles River

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 Transportation, Division of Aeronautics (DOT), California Department of Transportation, Division of Transportation Planning (DOT), California Department of Water Resources (DWR), 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, Los Angeles Region 4 (RWQCB), California Santa Monica Mountains Conservancy (SMMC), 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 Water Quality, State Water Resources Control Board, Divison of Financial Assistance
Development Types
Other (Water trunk line and mainline replacement)
Local Actions
Water trunk line and mainline replacements
Project Issues
Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Energy, Geology/Soils, Greenhouse Gas Emissions, Growth Inducement, Hazards & Hazardous Materials, Land Use/Planning, Mandatory Findings of Significance, Mineral Resources, Noise, Population/Housing, Public Services, Recreation, Sewer Capacity, Solid Waste, Transportation, Tribal Cultural Resources, Utilities/Service Systems, Vegetation, Wildfire
Local Review Period Start
Local Review Period End


Draft Environmental Document [Draft IS, NOI_NOA_Public notices, OPR Summary Form, Appx,]
Notice of Completion [NOC] Transmittal form

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.

Download CSV Download All Attachments New Search Print