OC-44 Pipeline Rehabilitation Project

2 Documents in Project

Summary

SCH Number
2015011044
Lead Agency
Mesa Consolidated Water District
Document Title
OC-44 Pipeline Rehabilitation Project
Document Type
MND - Mitigated Negative Declaration
Received
Present Land Use
Various

Document Description
The proposed project would rehabilitate approximately 1,700 linear feet of the OC-44 Pipeline by inserting a new pipeline inside the existing pipeline. Due to the biological and hydrologic sensitivity associated with San Diego Creek and Bonita Creek, it is impractical to utilize conventional open trench excavations (disrupting the surface conditions) to replace the existing OC-44 Pipeline. Thus, the project proposes a trenchless rehabilitation technique, termed, sliplining. Through this process, a new pipe is installed inside the existing deteriorated pipe. Rather than conducting open trench improvements in the project area, the project proposes to slipline the existing 42-inch pipeline with a new 30-inch Ductile Iron Pipe. In order to accommodate these improvements, a pipe jacking operation would be conducted. As part of the proposed project, three access pits would be required. Implementation of the proposed project would also require temporary access roads for personnel and equipment to access the proposed pit locations. Upon completion of construction, the project site would be re-contoured to pre-construction grades and then would be re-vegetated with a native paint mix. The project site is not listed on a list of hazardous materials sites compiled pursuant to Government Code Section 65962.5.

Contact Information
Phil Lauri
Mesa Consolidated Water District
1965 Placentia Avenue
Costa Mesa, CA 92627

Phone : (949) 574-1000

Location

Coordinates
33°39'1.78"N 117°51'47.79"W
Cities
Newport Beach
Counties
Orange
Cross Streets
University Drive and La Vida
Zip
92660
Total Acres
.69
Parcel #
442-071-15, -071-21, -061-05, -061-06, -061-12, -061-16
State Highways
SR 73
Airports
John Wayne Airport
Schools
UC, Irvine
Waterways
San Diego Creek, Bonita Creek
Township
6S
Range
9W
Section
57
Base
SBB&M

Notice of Completion

Review Period Start
Review Period End
Development Type
Water Facilities (Water Pipeline Type)
Local Action
Site Plan Local Coastal Permit
Project Issues
Aesthetic/Visual Agricultural Land Air Quality Archaeologic-Historic Biological Resources Coastal Zone Drainage/Absorption Flood Plain/Flooding Forest Land/Fire Hazard Geologic/Seismic Minerals Noise Population/Housing Balance Public Services Recreation/Parks Schools/Universities Septic System Sewer Capacity Soil Erosion/Compaction/Grading Solid Waste Toxic/Hazardous Traffic/Circulation Vegetation Water Quality Water Supply Wetland/Riparian Wildlife Growth Inducing Land Use Cumulative Effects
Reviewing Agencies
Air Resources Board California Coastal Commission California Department of Parks and Recreation California Highway Patrol Caltrans, Division of Aeronautics Department of Conservation Department of Fish and Wildlife, Region 5 Department of Water Resources Native American Heritage Commission Office of Emergency Services, California Office of Historic Preservation Regional Water Quality Control Board, Region 8 Resources Agency State Lands Commission Caltrans, District 12
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