Syphon Reservoir Geotechnical Investigations Project

Summary

SCH Number
2019029041
Lead Agency
Irvine Ranch Water District
Document Title
Syphon Reservoir Geotechnical Investigations Project
Document Type
MND - Mitigated Negative Declaration
Received

Document Description
The project would implement geotechnical investigations to evaluate geologic and seismic conditions at the existing Syphon Reservoir site. Additionally, geotechnical explorations would occur to verify the characteristics of the Center Valley Fault, which previously has been documented as inactive. The project would exploratory test pits, borings, and geophysical surveys to characterize the subsurface conditions of the soil and bedrock at each exploration location.

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

(949) 453-5300

Location

Coordinates
33°42'38"N 117°43'52"W
Cities
Irvine
Counties
Orange
Cross Streets
Portola Parkway and Bee Canyon Access Rd
Zip
92620
Total Acres
28
Parcel #
104-118-34
State Highways
133
Schools
Stonegate ES, Crean Lutheran HS, Eastwood EA

Notice of Completion

Review Period Start
Review Period End
Development Type
Other (Geotechnical investigation)
Project Issues
Cumulative Effects Landuse Growth Inducing Wildlife Wetland/Riparian Water Supply Water Quality Vegetation Traffic/Circulation Toxic/Hazardous Solid Waste Soil Erosion/Compaction/Grading Sewer Capacity Septic System Schools/Universities Recreation/Parks Public Services Population/Housing Balance Noise Minerals Geologic/Seismic Forest Land/Fire Hazard Flood Plain/Flooding Biological Resources Archaeologic-Historic Air Quality Agricultural Land Aesthetic/Visual
Reviewing Agencies
Department of Fish and Wildlife, Region 5 Department of Water Resources Air Resources Board, Major Industrial Projects California Coastal Commission California Department of Parks and Recreation California Highway Patrol Caltrans, District 12 Department of Conservation 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 State Water Resources Control Board, Division of Drinking Water

Attachments

Environmental Document
Draft_MND_Syphon_Geotech-Website   PDF 218065 K
NOC
Transmittal and 2nd page of NOC   PDF 362 K NOC   PDF 484 K
State Comments
CDFW Comment   PDF 533 K DWR Comment   PDF 512 K
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