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   Party At-A-Glance Report

  
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General Information
Party ID Party Name Party Classification Mailing Address Work Phone Email/Website
28508 Mercer Fraser Company Eureka Office Privately-Owned Business Po Box 1006 Eureka, CA 95502 707-443-6371 None
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
900318 McKnight Gravel Extraction Operations Humboldt 1 Dredge/Fill Site None None None
899926 Fairway Lane Road Improvements Project 2025 Humboldt 1 Dredge/Fill Site Owner 02/25/2025 None
895480 Drake Gravel Bar Extraction Humboldt 1 Dredge/Fill Site None None None
879386 Patton - Van Duzen River Ranch Gravel Extraction Humboldt 1 Dredge/Fill Site Operator 02/11/2022 None
781360 Mercer Fraser Co - Cooks Valley Humboldt 1 Dredge/Fill Site Owner and Operator 05/15/2012 None
613179 Mercer Fraser Co Dinsmore Bar Gravel Extraction Trinity 1 Dredge/Fill Site None None None
272669 Mercer Fraser Company Willow Creek Bar Humboldt 1 Dredge/Fill Site Owner 06/26/2002 None
255536 Sandy Prairie/Canevari Humboldt 1 Dredge/Fill Site Owner 06/26/2002 None
240381 Mercer Fraser Company Willow Creek Humboldt 1 Sand and Gravel Mining Operator 09/28/2004 None
240380 Mercer Fraser Company Sandy Prairie Humboldt 1 Sand and Gravel Mining Owner 01/19/1984 None
240379 Mercer Fraser Company Essex Gravel Bar Extraction Humboldt 1 Sand and Gravel Mining Owner 01/19/1984 None
240378 Mercer Fraser Co. Cooks Valley Humboldt 1 Sand and Gravel Mining Owner 03/29/1984 None
Total Related Places: 12
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
630912 Justin Zabel Person Employee 02/11/2022 None None
556131 Megan Wolf Person Employee 02/11/2022 None None
535468 Mark Benzinger Person Employee 07/18/2012 None None
535468 Mark Benzinger Person Legally Responsible Official 02/25/2025 None None
206732 Justin Porteous Person Facility Contact 07/11/2005 None None
Total Related Parties: 5
  
  
  
  
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?
460423 401 Certification 1 1B25035WNHU Active CERFILLEXC None 06/16/2025 None Discharger 07/18/2012 03/09/2025 N
460074 401 Certification 1 1B25022WNHU Active CERFILLEXC None 04/22/2025 None Discharger 02/25/2025 None N
457517 401 Certification 1 1B24085WNHU Active CERMINING None 07/28/2025 None Discharger 04/15/2025 None N
446772 401 Certification 1 1B02100WNHU Active CERFILLEXC None 08/18/2022 None Discharger 07/18/2012 None N
446771 401 Certification 1 1B02102WNHU Active CERFILLEXC None 08/18/2022 None Discharger 07/18/2012 None N
446600 401 Certification 1 1B22016WNHU Active CERMINING None 05/11/2022 None Discharger 02/11/2022 None N
433618 401 Certification 1 1B02101WNHU Active CERMINING None 09/17/2019 None Discharger 08/16/2019 None N
414001 401 Certification 1 1B02100WNHU Historical CERFILLEXC None 08/10/2017 08/10/2022 Discharger 07/18/2012 None N
414000 401 Certification 1 1B02102WNHU Historical CERFILLEXC None 08/10/2017 08/10/2022 Discharger 07/18/2012 None N
387032 401 Certification 1 1B02100WNHU Historical CERFILLEXC None 08/15/2002 08/15/2007 Discharger 07/18/2012 None N
386525 401 Certification 1 1B02102WNHU Historical CERFILLEXC None 09/07/2012 09/07/2017 Discharger 07/18/2012 None N
386524 401 Certification 1 1B02101WNHU Historical CERFILLEXC None 09/13/2012 09/16/2019 Discharger 07/18/2012 None N
386523 401 Certification 1 1B02100WNHU Historical CERFILLEXC None 09/13/2012 09/12/2017 Discharger 07/18/2012 None N
386517 401 Certification 1 1B02099WNHU Historical CERFILLEXC None 12/12/2012 12/11/2017 Discharger 07/18/2012 None N
386497 401 Certification 1 1A05097WNTR Historical CERFILLEXC None 12/12/2012 12/11/2017 Discharger 07/18/2012 None N
332378 Enrollee - 401 Certification 1 1A05097WNTR Historical CERFILLEXC R1-2005-0011 08/29/2007 08/29/2012 Discharger 08/29/2007 None N
171967 Enrollee - 401 Certification 1 1B02102WNHU Historical CERFILLEXC R1-2005-0011 09/14/2007 09/14/2012 Discharger 06/17/2005 None N
171966 Enrollee - 401 Certification 1 1B02101WNHU Historical CERFILLEXC R1-2005-0011 08/24/2007 08/24/2012 Discharger 06/17/2005 None N
171965 Enrollee - 401 Certification 1 1B02100WNHU Historical CERFILLEXC R1-2005-0011 09/14/2007 09/14/2012 Discharger 06/17/2005 None N
171964 Enrollee - 401 Certification 1 1B02099WNHU Historical CERFILLEXC R1-2005-0011 09/21/2007 09/21/2012 Discharger 06/17/2005 None N
137501 WDR 1 1A84046OHUM Historical WDR 84-046 03/29/1984 08/24/1995 Discharger 03/29/1984 None N
137469 WDR 1 1B84045OHUM Historical WDR 84-045 03/29/1984 08/24/1995 Discharger 03/29/1984 None N
137458 WDR 1 1B84010OHUM Historical WDR 84-010 01/19/1984 08/24/1995 Discharger 01/19/1984 None N
137457 WDR 1 1B84009OHUM Historical WDR 84-009 01/19/1984 08/24/1995 Discharger 01/19/1984 None N
Total Regulatory Measures: 24
  
  
  
  
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
388652 Notice of Violation None NOV 11/20/2012 for Mercer Fraser Company Essex CERFILLEXC 11/20/2012 Historical
388651 Notice of Violation None NOV 11/20/2012 for Mercer Fraser Company Willow Creek/McKnight CERFILLEXC 11/20/2012 Historical
388650 Notice of Violation None Enforcement NOV - Mercer Fraser Company Sandy Prairie/Canevari CERFILLEXC 11/20/2012 Historical
224594 Staff Enforcement Letter None Enforcement - 1B1HU759NSL Mercer Fraser Company SLIC 12/24/1999 Historical
Total Enforcement Actions: 4
  
  
  
  
Expand/Contract Enforcement Actions
Regulatory Measures linked to Related Parties
Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status
446772 Mark Benzinger 401 Certification CERFILLEXC 08/18/2022 Active
446772 Mark Benzinger 401 Certification CERFILLEXC 08/18/2022 Active
446771 Mark Benzinger 401 Certification CERFILLEXC 08/18/2022 Active
446771 Mark Benzinger 401 Certification CERFILLEXC 08/18/2022 Active
446600 Justin Zabel 401 Certification CERMINING 05/11/2022 Active
446600 Megan Wolf 401 Certification CERMINING 05/11/2022 Active
446595 Mark Benzinger 401 Certification CERMINING 05/12/2022 Active
446595 Mark Benzinger 401 Certification CERMINING 05/12/2022 Active
433618 Mark Benzinger 401 Certification CERMINING 09/17/2019 Active
433618 Mark Benzinger 401 Certification CERMINING 09/17/2019 Active
414001 Mark Benzinger 401 Certification CERFILLEXC 08/10/2017 Historical
414001 Mark Benzinger 401 Certification CERFILLEXC 08/10/2017 Historical
414000 Mark Benzinger 401 Certification CERFILLEXC 08/10/2017 Historical
414000 Mark Benzinger 401 Certification CERFILLEXC 08/10/2017 Historical
387032 Mark Benzinger 401 Certification CERFILLEXC 08/15/2002 Historical
387032 Mark Benzinger 401 Certification CERFILLEXC 08/15/2002 Historical
386525 Mark Benzinger 401 Certification CERFILLEXC 09/07/2012 Historical
386525 Mark Benzinger 401 Certification CERFILLEXC 09/07/2012 Historical
386524 Mark Benzinger 401 Certification CERFILLEXC 09/13/2012 Historical
386524 Mark Benzinger 401 Certification CERFILLEXC 09/13/2012 Historical
386523 Mark Benzinger 401 Certification CERFILLEXC 09/13/2012 Historical
386523 Mark Benzinger 401 Certification CERFILLEXC 09/13/2012 Historical
386517 Mark Benzinger 401 Certification CERFILLEXC 12/12/2012 Historical
386517 Mark Benzinger 401 Certification CERFILLEXC 12/12/2012 Historical
386497 Mark Benzinger 401 Certification CERFILLEXC 12/12/2012 Historical
386497 Mark Benzinger 401 Certification CERFILLEXC 12/12/2012 Historical
Total Regulatory Measures linked to Related Parties: 26
  
  
The current report was generated with data as of: 10/31/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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