Pacoima Spreading Grounds Improvement Project

3 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
Agency Name
Los Angeles County Flood Control District
Contact Types
Lead/Public Agency


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

State Review Period Start
State Review Period End
State Reviewing Agencies
Cal Fire, California Department of Parks and Recreation, California Department of Transportation, District 7 (DOT), California Highway Patrol, California Native American Heritage Commission (NAHC), California Public Utilities Commission (CPUC), California Regional Water Quality Control Board, Los Angeles Region 4 (RWQCB), California State Lands Commission (SLC), Caltrans, Division of Aeronautics, Office of Emergency Services, California, Office of Historic Preservation, Resources Agency, Resources, Recycling and Recovery, State Water Resources Control Board, Division of Drinking Water, California Department of Fish and Wildlife, South Coast Region 5 (CDFW)
State Reviewing Agency Comments
California Department of Fish and Wildlife, South Coast Region 5 (CDFW)
Development Types
Other (Flood Control Facility Improvements)
Local Actions
Flood Control
Project Issues
Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Drainage/Absorption, Economics/Jobs, Flood Plain/Flooding, Geology/Soils, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mineral Resources, Noise, Population/Housing, Public Services, Recreation, Schools/Universities, Solid Waste, Transportation, Vegetation, Wetland/Riparian, Wildfire, GHG

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 or via phone at (916) 445-0613.

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