Welcome to California
California Home
Welcome to California - images of Golden Gate Bridge, ocean sunset, waterfall, flowers, and city skyline California Home Welcome to the California Environmental Protection Agency
California Integrated Water Quality System Project (CIWQS)
   Party At-A-Glance Report

  
   [VIEW PRINTER FRIENDLY VERSION] [EXPORT THIS REPORT TO EXCEL]

  
  
  
  
  
General Information
Party ID Party Name Party Classification Mailing Address Work Phone Email/Website
581241 Joseph Walters 5640 South Fairfax Avenue Los Angeles, CA 90056 323-298-2209 jwalters@sentinelpeakresources.com
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
Total Related Places: 0
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
544526 Sentinel Peak Resources California LLC (Former Freeport-McMoRan Oil & Gas) Organization Legally Responsible Official 11/01/2021 None Privately-Owned Business
562173 Sentinel Peak Resources California LLC Organization Legally Responsible Official 11/30/2018 None Privately-Owned Business
562173 Sentinel Peak Resources California LLC Organization Data Submitter 07/19/2018 11/29/2018 Privately-Owned Business
Total Related Parties: 3
  
  
  
  
Expand/Contract Regulatory Measures
Regulatory Measures (non-enforcement)
Reg. Measure ID Regulatory Measure Type Region WDID Status Program Order No. RM Effective Date RM Termination Date Relationship Relationship Start Date Relationship End Date Amended?
Total Regulatory Measures: 0
  
  
  
  
Expand/Contract Violations
Violations within the past year
Violation ID Occurrence Date Violation Type Violation Description(+) Violation Status Priority Source Facility Name Violated Reg. Meas. ID Violated Reg. Meas. Order No. Linked to Enf.
Report defaults to display violations within the last year. Click here to see last five years of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 0
*Click the "(+/-) Violation Description" link to expand and contract the violation description.
  
  
  
  
Expand/Contract Enforcement Actions
Enforcement Actions
Enforcement ID Enforcement Type Enf. Order No. Title Program Effective Date Status
Total Enforcement Actions: 0
  
  
  
  
Expand/Contract Enforcement Actions
Regulatory Measures linked to Related Parties
Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status
456108 Sentinel Peak Resources California LLC (Former Freeport-McMoRan Oil & Gas) Letter WDRMINING 01/10/2024 Historical
462456 Sentinel Peak Resources California LLC (Former Freeport-McMoRan Oil & Gas) Letter WDRMINING 09/08/2025 Active
461924 Sentinel Peak Resources California LLC (Former Freeport-McMoRan Oil & Gas) Enrollee - WDR WDRMINING 07/31/2025 Active
394303 Sentinel Peak Resources California LLC (Former Freeport-McMoRan Oil & Gas) Enrollee - WDR WDRMINING 12/16/2013 Active
460729 Sentinel Peak Resources California LLC (Former Freeport-McMoRan Oil & Gas) Letter WDRMINING 04/11/2025 Active
143609 Sentinel Peak Resources California LLC (Former Freeport-McMoRan Oil & Gas) WDR WDRMINING 04/24/1958 Active
452636 Sentinel Peak Resources California LLC (Former Freeport-McMoRan Oil & Gas) Letter WDRMINING 05/16/2023 Active
394305 Sentinel Peak Resources California LLC (Former Freeport-McMoRan Oil & Gas) Enrollee - WDR WDRMINING 12/16/2013 Historical
394381 Sentinel Peak Resources California LLC (Former Freeport-McMoRan Oil & Gas) Enrollee - WDR WDRMINING 12/24/2013 Active
460442 Sentinel Peak Resources California LLC (Former Freeport-McMoRan Oil & Gas) Enrollee - WDR WDRMINING 03/19/2025 Active
457357 Sentinel Peak Resources California LLC (Former Freeport-McMoRan Oil & Gas) Letter WDRMINING 06/18/2024 Historical
462611 Sentinel Peak Resources California LLC (Former Freeport-McMoRan Oil & Gas) Letter WDRMINING 09/23/2025 Active
383620 Sentinel Peak Resources California LLC NPDES Permit NPDNONMUNIPRCS 03/09/2013 Historical
392883 Sentinel Peak Resources California LLC (Former Freeport-McMoRan Oil & Gas) NPDES Permit NPDINDSML 02/01/2014 Historical
444437 Sentinel Peak Resources California LLC (Former Freeport-McMoRan Oil & Gas) NPDES Permit NPDINDSML 07/01/2021 Active
416564 Sentinel Peak Resources California LLC NPDES Permit NPDINDLRG 04/01/2018 Active
459296 Sentinel Peak Resources California LLC Enrollee - WDR LNDISPOTH 10/24/2024 Active
389308 Sentinel Peak Resources California LLC WDR LNDISPOTH 02/07/2013 Historical
311205 Sentinel Peak Resources California LLC (Former Freeport-McMoRan Oil & Gas) Enrollee LNDISPOTH 09/07/2006 Active
148289 Sentinel Peak Resources California LLC WDR LNDISPOTH 04/26/2001 Historical
458091 Sentinel Peak Resources California LLC (Former Freeport-McMoRan Oil & Gas) Letter DISCHLND 08/13/2024 Historical
458268 Sentinel Peak Resources California LLC (Former Freeport-McMoRan Oil & Gas) Letter DISCHLND 09/03/2024 Historical
400989 Sentinel Peak Resources California LLC (Former Freeport-McMoRan Oil & Gas) 13267 Letter (Non-Enforcement) DISCHLND 04/01/2015 Historical
Total Regulatory Measures linked to Related Parties: 23
  
  
The current report was generated with data as of: 11/03/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
Back to Main Page  |  Back to Top of Page

Conditions of Use | Privacy Policy
Copyright © 2024 State of California

The Board is one of six boards, departments, and offices under
the umbrella of the California Environmental Protection Agency.
Cal/EPA | ARB | DPR | DTSC | OEHHA | SWRCB