Joint Transmission Main (JTM) Valve Replacement Project

2 Documents in Project

Summary

SCH Number
2014041043
Lead Agency
South Coast Water District
Document Title
Joint Transmission Main (JTM) Valve Replacement Project
Document Type
MND - Mitigated Negative Declaration
Received

Document Description
The South Coast water District (District) is the contract operator for a large water main known as the Joint Transportation Main (JTM). The District proposes the replacement of a 42-inch, 30-inch, 24-inch and 8-inch isolation valves along the 60-inch JTM and a 24-inch Eastern Transmission Main (ETM) located in the City of Laguna Woods. These valves and flow meter have not been operated in several decades and have become inoperable. The valves associated with the JTM will require repair and replacement. The valve vaults will be raised to grade for future safe access and maintenance. Due to the size, depth, and location of the vaults, the construciton activities will require large excavations and removal of some trees and other vegetation to provide contractor access.

Contact Information
Marissa Potter
South Coast Water District
31592 West Street
Laguna Beach, CA 92651

714 499-4555

Location

Cities
Laguna Woods
Counties
Orange
Cross Streets
Rondo Sevilla X Avenida Sevilla
Zip
92637
Waterways
Aliso Creek

Notice of Completion

Review Period Start
Review Period End
Development Type
Other (water pipeline valve & valve repair)
Local Action
Other Action Other Action: Water pipeline
Project Issues
Aesthetic/Visual Air Quality Biological Resources Vegetation Water Quality Wetland/Riparian
Reviewing Agencies
Air Resources Board California Department of Parks and Recreation California Highway Patrol Department of Fish and Wildlife, Region 5 Department of Water Resources Native American Heritage Commission Office of Emergency Services, California Regional Water Quality Control Board, Region 8 Resources Agency Resources, Recycling and Recovery State Water Resources Control Board, Divison of Financial Assistance Cal Fire Caltrans, District 12
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