Del Valle Sediment Placement Site
Summary
SCH Number
2009021057
Lead Agency
Los Angeles County
Document Title
Del Valle Sediment Placement Site
Document Type
MND - Mitigated Negative Declaration
Received
Present Land Use
Hillside Management/A2-2
Document Description
The proposed project involves the creation of a SPS for the deposition of sediment cleared from debris basins in the Santa Clarita Valley area. Debris basins are engineered earthen facilities constructed to control runoff from upland drainage areas that has the potential to pose a threat to human life or property. Regular sediment removal maintenance is required for debris basins to operate effectively and existing SPS facilities are reaching capacity. It is therefore necessary to increase sediment storage by obtaining additional sediment placement sites. The proposed SPS project site is an eroded gully located within the County of LA Fire Dept. Del Valle Training Facility that would have capacity to accommodate ~350,000 cy of sediment. The proposed project involves 2 major actions: site preparation and sediment placement. Site preparation involves the clearing/grubbing of onsite vegetation within the placement footprint required to accommodate future sediment deliveries. Sediment place activities would be ongoing throughout the year, although the majority of activity typically occurs in the summer/fall months. Only the portion of the project site that is needed to accommodate the delivered sediment would be cleared/grubbed; therefore, the proposed SPS would be filled with sediment incrementally over time and no initial mass-grading would be required.
Contact Information
Name
Yousesef Chebabi
Agency Name
Los Angeles County
Contact Types
Lead/Public Agency
Phone
Location
Coordinates
Counties
Los Angeles
Cross Streets
Henry Mayo Dr (SR 126) just west of Shiquito Canyon Rd
Total Acres
12.6
State Highways
126
Railways
No
Airports
No
Schools
No
Waterways
Santa Clara River
Other Location Info
City/Nearest Location: Val Verde
Notice of Completion
State Review Period Start
State Review Period End
State Reviewing Agencies
California Department of Conservation (DOC), California Department of Fish and Wildlife, South Coast Region 5 (CDFW), California Department of Parks and Recreation, California Highway Patrol, California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, Los Angeles Region 4 (RWQCB), California State Lands Commission (SLC), Department of Toxic Substances Control, Department of Water Resources, Office of Historic Preservation, Resources Agency, State Water Resources Control Board, Division of Water Quality, California Department of Transportation, District 7 (DOT)
State Reviewing Agency Comments
California Department of Transportation, District 7 (DOT)
Development Types
Other (sediment placement site)
Local Actions
Site Plan
Project Issues
Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Drainage/Absorption, Flood Plain/Flooding, Geology/Soils, Noise, Transportation, Vegetation
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 state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.