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California Integrated Water Quality System Project (CIWQS)
   Party At-A-Glance Report

  
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General Information
Party ID Party Name Party Classification Mailing Address Work Phone Email/Website
20720 Humboldt Bay Municipal Water Dist. Community Organization Po Box 95 Eureka, CA 95502 707-443-5018 hbmwd@northcoast.com
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
834586 Humboldt Bay Municipal Water District Mad River Channel Dredging Trinity 1 Dredge/Fill Site Owner and Operator 04/19/2017 None
834889 Humboldt Bay Municipal Water District WS Humboldt 1 Utility Structure Owner and Operator 05/01/2017 None
902763 Arcata Water Transmission Pipeline Repair Project Humboldt 1 Dredge/Fill Site Owner 09/05/2025 None
239094 Mad River Slough Pipeline Humboldt 1 Dredge/Fill Site Owner 10/31/2002 None
253586 Humboldt Bay Municipal Water District, R.W. Mathews Dam/Ruth Lake Operations Trinity 1 Dredge/Fill Site Owner 11/29/2004 None
857090 HBMWD Mad River Pump Station 4 Emergency Project Humboldt 1 Dredge/Fill Site Operator 03/21/2019 None
723052 Essex at Mad River (Humboldt County) Humboldt 1 Dredge/Fill Site Operator 11/29/2004 None
774734 EX 1-11EX-240 TRI Trinity 1 Timber Harvesting Land Owner 12/16/2011 None
Total Related Places: 8
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
526583 Paul Helliker Person Legally Responsible Official 05/01/2017 12/23/2020 None
652343 Michiko Mares Person Legally Responsible Official 09/04/2025 None None
652343 Michiko Mares Person Employee 09/05/2025 None None
595973 John Friedenbach Person Legally Responsible Official 03/21/2019 None None
57838 Carol Rische Person Legally Responsible Official 10/31/2002 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?
458216 401 Certification 1 1B03079WNHU Active CERFILLEXC None 09/23/2025 None Discharger 11/29/2004 None Y
413002 Enrollee - NPDES 1 4DW0732 Active NPDNONMUNIPRCS 2014-0194-DWQ 07/01/2016 None Discharger 07/01/2016 None N
382579 Enrollee - Waiver 1 1B111EX240TRI Active TH R1-2014-0011 12/16/2011 None Discharger 12/16/2011 None N
458225 401 Certification 1 1A05156WNTR Active CERFILLEXC None 09/03/2025 None Discharger 08/29/2024 None N
412818 Enrollee - 401 Certification 1 1A170420WNTR Historical CERDREDGE RGP 5 04/26/2017 04/26/2018 Discharger 04/19/2017 None N
402577 401 Certification 1 1B04156WNHU Historical CERFILLEXC None 09/15/2015 01/25/2023 Discharger 06/17/2005 None N
402576 401 Certification 1 1B03079WNHU Historical CERFILLEXC None 09/15/2015 09/22/2025 Discharger 11/29/2004 None N
173806 401 Certification 1 1B04156WNHU Historical CERFILLEXC None 01/07/2010 01/07/2015 Discharger 06/17/2005 None N
349372 401 Certification 1 1B03079WNHU Historical CERFILLEXC None 01/07/2010 01/06/2015 Discharger 11/29/2004 None N
171520 401 Certification 1 1B02177WNHU Historical CERFILLEXC None 01/23/2003 01/23/2008 Discharger 06/17/2005 None N
Total Regulatory Measures: 10
  
  
  
  
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
Total Regulatory Measures linked to Related Parties: 0
  
  
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.
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