Granite Mine Expansion Project

6 Documents in Project


SCH Number
Lead Agency
Twentynine Palms, City of (City of Twentynine Palms)
Document Title
Granite Mine Expansion Project
Document Type
RIR - Revised Environmental Impact Rep
Present Land Use
Community Industrial (CI) and Rural Living

Document Description
The proposed project would expand the Twentynin Palms Sand and Gravel Surface Mining Facility from 113.5 acres to 469.5 acres. The proposed project affects 356 acres and includes a request for a General Plan Amendmentm and rezoning of 320 acres from RL 2.5, Rural Living, to CI, Community Industrial. Approximately 1/2 of the project site (178 acres) would be actively mined incrementally in planned phases, while the other half would be set aside for permanent wildlife habitat conservation. Mining currently takes place at the existing facility at an estimated annual rate of 330,000 tons per year and would increase to 450,000 tons per year by mining the additional 178 acres. Reclamation would be unirrigated open space, retention basin for flood control and habitat. The project requires a Statutory Development Agreement, Conditional Use Permit, and Reclamation Plan.

Contact Information
Charles La Claire
City of Twentynine Palms
6136 Adobe Road
Twentynine Palms, CA 92277

Phone : (760) 367-6799


34°06'51.8"N 115°59'16.3"W
Twentynine Palms
San Bernardino
Cross Streets
Twentynine Palms Highway (Highway 62)
Total Acres
Parcel #
591-301-004 005; 591-341-001, 006, 007, 008
State Highways
1, 6

Notice of Completion

Review Period Start
Review Period End
Development Type
Mining (Sand and Gravel Mineral)
Local Action
General Plan Amendment Rezone Use Permit Other Action Other Action: Reclamation Plan, Statutory Development Agreement
Project Issues
Aesthetic/Visual Air Quality Archaeologic-Historic Biological Resources Drainage/Absorption Flood Plain/Flooding Geologic/Seismic Minerals Noise Public Services Recreation/Parks Septic System Soil Erosion/Compaction/Grading Toxic/Hazardous Traffic/Circulation Vegetation Water Quality Water Supply Wetland/Riparian Growth Inducing Land Use Cumulative Effects
Reviewing Agencies
Air Resources Board, Major Industrial Projects California Department of Conservation California Department of Parks and Recreation California Department of Transportation, District 8 California Highway Patrol California Native American Heritage Commission California Regional Water Quality Control Board, Colorado River Basin Region 7 Caltrans, Division of Aeronautics Department of Water Resources Office of Historic Preservation Resources Agency Resources, Recycling and Recovery State Water Resources Control Board, Division of Water Rights Department of Toxic Substances Control Department of Fish and Wildlife, Region 6

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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