Pacoima Spreading Grounds Improvement Project

2 Documents in Project


SCH Number
Lead Agency
Los Angeles County Flood Control District
Document Title
Pacoima Spreading Grounds Improvement Project
Document Type
MND - Mitigated Negative Declaration
Present Land Use
LACFCD Spreading Grounds/Open Space (OS-1XL-O)/Open Space

Document Description
Project involves improvements to existing facilities to increase water storage capacity from 530 af to 1,197 af; increase percolation rate from 65 cfs to 142 cfs; eliminate localize flooding; and improve efficiency of operations and maintenance. The improvements would include replacing the intake canal with underground pipeline; deepening and combining the basins to remove the underlying clay layer; and replacing interbasin and outlet structure. Approx 1.6 M cy of sediment would be excavated from the spreading basins; of this, approx 1.37 M cy would be exported to three gravel/sediment processing pits and one landfill. Sediment export would generate up to 239 round trips from 14-cy haul trucks or 186 round trips from 18-cy haul trucks per day, for approx 20 months beginning Fall 2019.

Contact Information
Ernesto Rivera
Los Angeles County Flood Control District
900 South Fremont Avenue, 11th floor
Alhambra, CA 91803

Phone : (626) 458-6110


34°15'26"N 118°26'52"W
Los Angeles Los Angeles, City of
Los Angeles
Cross Streets
Arieta Avenue and Paxton Street
Total Acres
State Highways
I-5, 405
Pacoima Wash
San Fern

Notice of Completion

Review Period Start
Review Period End
Development Type
Other (Flood Control Facility Improvements)
Local Action
Other Action Other Action: Flood Control
Project Issues
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 Soil Erosion/Compaction/Grading Solid Waste Toxic/Hazardous Traffic/Circulation Vegetation Water Quality Water Supply Wetland/Riparian Land Use Cumulative Effects Other Other Issues: GHG
Reviewing Agencies
Cal Fire California Department of Parks and Recreation California Highway Patrol California Public Utilities Commission Caltrans, District 7 Caltrans, Division of Aeronautics Native American Heritage Commission Office of Emergency Services, California Office of Historic Preservation Regional Water Quality Control Board, Region 4 Resources Agency Resources, Recycling and Recovery State Lands Commission State Water Resources Control Board, Division of Drinking Water Department of Fish and Wildlife, Region 5
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