Arroyo Las Positas Weir Replacement Project

Summary

SCH Number
2008092039
Lead Agency
Zone 7 Water Agency
Document Title
Arroyo Las Positas Weir Replacement Project
Document Type
MND - Mitigated Negative Declaration
Received
Present Land Use
Open Space/Agricultural

Document Description
Zone 7 Water Agency (Zone 7) proposes to remove an existing concrete pad currently used to control stream flow in Arroyo Las Positas under the North Livermore Avenue Bridge and to replace it with a V-notched concrete weir. Because of the increased flow through the Arroyo Las Positas, the existing concrete pad bas been unable to sufficiently control flow to allow accurate stage and discharge measurements at the Arroyo Las Positas near Livermore gauging station. The purpose of the project is to provide Zone 7 with a control structure that accommodates seasonal flows that will provide accurate stage and discharge data for the stream, especially during the periods of low flow.

Contact Information
Mary Lim
Zone 7 Water Agency
100 North Canyons Parkway
Livermore, CA 94551

Phone : (925) 454-5036

Location

Coordinates
37°42'0.62"N 121°46'25.4"W
Cities
Livermore
Counties
Alameda
Cross Streets
North Livermore Avenue
Zip
94550
State Highways
I-580
Waterways
Arroyo Las Positas

Notice of Completion

Review Period Start
Review Period End
Development Type
Other
Local Action
Other Action
Project Issues
Air Quality Archaeologic-Historic Biological Resources Drainage/Absorption Flood Plain/Flooding Geologic/Seismic Noise Soil Erosion/Compaction/Grading Solid Waste Toxic/Hazardous Traffic/Circulation Vegetation Water Quality Water Supply Wetland/Riparian Wildlife
Reviewing Agencies
California Department of Parks and Recreation California Highway Patrol Department of Fish and Wildlife, Region 3 Department of Toxic Substances Control Department of Water Resources Native American Heritage Commission Regional Water Quality Control Board, Region 2 Resources Agency Caltrans, District 4
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