3.7 MG Zone 1 Reservoir Project

2 Documents in Project


SCH Number
Lead Agency
Irvine Ranch Water District
Document Title
3.7 MG Zone 1 Reservoir Project
Document Type
MND - Mitigated Negative Declaration

Document Description
IRWD proposes the construction of a 3.7-million gallon reservoir adjacent to IRWD's existing 15-MG Zone 1 reservoir to serve existing IRWD customers in the Irvine service area. The primary purpose of the project is to construct an additional permanent reservoir to allow for storage reliability and operational flexibility in the zone 1 domestic water system. The project would include construction of an aboveground 3.7-MG pre-stressed circular concrete tank. Proposed reservoir construction and operation would also require installation of tank inlet and outlet piping, overflow piping, drain pipe, valve vault to house the inlet and outlet piping. 1 butterfly valves, and roof hatches to allow for tank access. As part of the project, the reservoir management system will be upgraded to accommodate the new reservoir tank.

Contact Information
Jo Ann Corey
Irvine Ranch Water District
15600 Sand Canyon Avenue
Irvine, CA 92718

(949) 453-5326


33°41'20.6"N 117°44'45.3"W
Cross Streets
Sand Canyon Ave and Elysian
Total Acres
State Highways
I-5, SR 133
Cypress Village ES

Notice of Completion

Review Period Start
Review Period End
Development Type
Water Facilities (reservoir Type, 3.7 MGD)
Local Action
Other Action Other Action: Encroachment
Project Issues
Aesthetic/Visual Agricultural Land Air Quality Archaeologic-Historic Biological Resources Drainage/Absorption Economics/Jobs 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 Growth Inducing Land Use Cumulative Effects
Reviewing Agencies
Air Resources Board California Department of Parks and Recreation California Highway Patrol Caltrans, District 12 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 State Water Resources Control Board, Division of Drinking Water, District 8 State Water Resources Control Board, Division of Water Rights State Water Resources Control Board, Division of Drinking Water
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