OC-44 Pipeline Rehabilitation Project

2 Documents in Project


SCH Number
Lead Agency
Mesa Consolidated Water District
Document Title
OC-44 Pipeline Rehabilitation Project
Document Type
MND - Mitigated Negative Declaration
Present Land Use
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
Agency Name
Mesa Consolidated Water District
Contact Types
Lead/Public Agency


Newport Beach
Cross Streets
University Drive and La Vida
Total Acres
Parcel #
442-071-15, -071-21, -061-05, -061-06, -061-12, -061-16
State Highways
SR 73
John Wayne Airport
UC, Irvine
San Diego Creek, Bonita Creek

Notice of Completion

State Review Period Start
State Review Period End
State Reviewing Agencies
California Air Resources Board (ARB), California Coastal Commission (CCC), California Department of Conservation (DOC), California Department of Fish and Wildlife, South Coast Region 5 (CDFW), California Department of Parks and Recreation, California Highway Patrol, California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, Santa Ana Region 8 (RWQCB), California State Lands Commission (SLC), Caltrans, Division of Aeronautics, Department of Water Resources, Office of Emergency Services, California, Office of Historic Preservation, Resources Agency, California Department of Transportation, District 12 (DOT)
State Reviewing Agency Comments
California Department of Transportation, District 12 (DOT)
Development Types
Water Facilities (Type Water Pipeline)
Local Actions
Site Plan, Coastal Permit
Project Issues
Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Coastal Zone, Cultural Resources, Cumulative Effects, Drainage/Absorption, Flood Plain/Flooding, Geology/Soils, Growth Inducement, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mineral Resources, Noise, Population/Housing, Public Services, Recreation, Schools/Universities, Septic System, Sewer Capacity, Solid Waste, Transportation, Vegetation, Wetland/Riparian, Wildfire, Wildlife

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.

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