Pipelines 3 and 4 Relining: State Route 52 to Lake Murray and Pipeline 3 30-inch Interconnect to Lake Murray Control Valve

SCH Number: 2010091003
Lead Agency: San Diego County Water Authority
Document Title: Pipelines 3 and 4 Relining: State Route 52 to Lake Murray and Pipeline 3 30-inch Interconnect to Lake Murray Control Valve
Document Type: MND - Mitigated Negative Declaration
Received: 9/2/2010

Document Description: The proposed project consists of the installation of half-inch thick, 69-inch diameter collapsed welded steel liners in approximately 19,200 linear feet of existing 72-inch-diameter pre-stressed concrete cylinder pipe. While underground activities would occur along the entire reach of the pipeline, above-ground disturbance activities would occur at specified portal locations and staging areas. Pipeline 4 would be accessed at 11 proposed portals extending over approximately 16,600 linear feet. Access to and relining of Pipeline 3 would occur over approximately 2,600 linear feet, through two more portal locations. In addition to the planned portals, access to the pipelines also would take place through up to 18 existing manhole structures and two temporary access shafts along the length of the project alignment.

Contact Information: Mark Tegio
San Diego County Water Authority
4677 Overland Avenue
San Diego, CA 92123
858-522-6753

Cities: San Diego
Counties: San Diego
Cross Streets: SR-52, Mission Gorge Road, Jackson Drive, Navajo Road, Lake Shore Drive, Baltimore Drive
Zip: various
Total Acres: 13.13
Parcel #: various
State Highways: SR-52, I-8
Railways: No
Airports: MCAS Miramar
Schools: Green, Dallard & Benchley Weinberger Elem.
Waterways: San Diego River
Township: 15,16s
Range: 2W
Section: unsec
Base: SBB&M

Review Period Start: 9/2/2010
Review Period End: 10/1/2010
Development Type: Water Facilities (water pipeline relining)
Project Issues: Aesthetic/Visual Agricultural Land Air Quality Archaeologic-Historic Biological Resources Drainage/Absorption Flood Plain/Flooding Forest Land/Fire Hazard Geologic/Seismic Minerals Noise Population/Housing Balance Public Services Recreation/Parks Schools/Universities Sewer Capacity Soil Erosion/Compaction/Grading Solid Waste Toxic/Hazardous Traffic/Circulation Vegetation Water Quality Water Supply Wetland/Riparian Growth Inducing Land Use Cumulative Effects
Reviewing Agencies: California Department of Parks and Recreation California Highway Patrol Caltrans, District 11 Department of Fish and Wildlife, Region 5 Department of Health Services Department of Water Resources Regional Water Quality Control Board, Region 9 Resources Agency State Water Resources Control Board, Division of Water Rights Native American Heritage Commission