Sargent Ranch Quarry

Project Status: 

A draft Environmental Impact Report (EIR) has been prepared for the proposed 403-acre mining operation and is posted below.  The public comment period opened on July 25, 2022 and closed on November 7, 2022.

Please address questions to:
Robert Salisbury, Senior Planner
[email protected]

Description:​

Sargent Ranch Partners, LLC (Applicant) proposes to construct, operate for 30 years, and subsequently reclaim the Sargent Quarry Project on an approximately 403-acre site in Santa Clara County. The Project is a sand and gravel mining operation that includes an aggregate processing facility. The Project site is located in the Sargent Ranch property, approximately 4 miles south of the city of Gilroy and approximately 1 mile south of the U.S. 101 and Highway 25 interchange. The mined material (sand and gravel, collectively called “product”) would be extracted in four phases over 30 years and would be transported off-site by a combination of truck and train hauling. Final reclamation of the last surface mining phase and the aggregate processing facility would occur at the end of the Project’s life. The project requires adoption of a Reclamation Plan and issuance of a Conditional Use Permit for the 30-year life of the quarry.

• Draft Environmental Impact Report (EIR)
  • Draft Environmental Impact Report
  • DEIR Errata
  • Appendix A: Notice of Preparation and Scoping Comments
  • Appendix B: Mining and Reclamation Plan
  • Appendix C: General Plan Policies Consistency Analysis
  • Appendix D: Air Quality and Greenhouse Gas Calculations
  • Appendix E: Biological Resources
  • Appendix F: Energy Use Calculations
  • Appendix G: Geology, Soils, and Paleontology
  • Appendix H: Hazards (Phase 1 ESA)
  • Appendix I: Hydrology and Water Quality
  • Appendix J: Noise
  • Appendix K: Transportation
  • Appendix L: Fire Protection Plan
  • Appendix M: Cultural Resources - Redacted version available upon request.
    To request this Appendix, please email Robert Salisbury.
  • Notice of Availability
  • Notice of Time Extension - posted 9/23/2022
  • Notice of Completion

Application Materials

• Technical Reports
  • Traffic Report
  • 101 Access Acceleration Lanes Concept
  • Tar Creek Bridge Design​
  • Slope Stability Analysis Report
  • Biotic Evaluation
• Site Maps
  • Figure 1: Regional Location map
  • Figure 2: Surface Water Bodies and Site Location
  • Figure 3: Existing Conditions
  • Figure 4: Existing Drainage Plan
  • Figure 5: Ownership Map
  • Figure 6: Local Geology
  • Figure 7a: Biotic Habitats
  • Figure 7b: Special Status Species Observations
  • Figure 8: Aggregate Plant Site Plan
  • Figure 8a: Aggregate Plan Site Lighting Plan
• Plans and Specifications
  • Figure 9: Mining Site Plan
  • Figure 9a: Access Road
  • Figure 9b: Access Road_Phases 3 and 4
  • Figure 9c: Access and Truck Traffic Plan
  • Figure 10: Phase 3 and 4 Excavation Plan
  • Figure 11: Pit 1 Grading and Phasing Plan
  • Figure 12: Phase 1 Excavation Plan
  • Figure 13: Phase 2 Excavation and Phase 1 Reclamation
  • Figure 14: Mine Cross Sections
  • Figure 15: Mine Cross Sections
  • Figure 15a: Mine Cross Sections
  • Figure 16: Mine Drainage Plan
• ​Reclamation Plan​ - updated Feb 2022
  • Figure 17: Phase 3 and 4 Final Reclamation
  • Figure 18: Phase 1 and 2 Final Reclamation
  • Figure 19: Aggregate Plan Reclamation
  • Figure 20: Mine Reclamation Cross Sections
  • Figure 21: Mine Reclamation Cross Sections
  • Figure 22a: Mine Reclamation Planting Questions
  • Figure 22b: Mine Reclamation Planting
  • Figure 23: Revegetation Plan
  • Figure 24: Test Plot Plan

For more information on the project, contact Robert Salisbury, (408) 299-5785.