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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
642980 Jonathan Koehler 415-945-1191 jkoehler@marinwater.org
  
  
  
  
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
27786 Marin Municipal Water District Organization Legally Responsible Official 12/08/2023 None Special District
Total Related Parties: 1
  
  
  
  
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
146296 Marin Municipal Water District Reclamation Requirements REC 04/20/1976 Historical
146307 Marin Municipal Water District Reclamation Requirements REC 11/16/1976 Historical
141614 Marin Municipal Water District Reclamation Requirements REC 07/19/1989 Active
141615 Marin Municipal Water District Reclamation Requirements REC 07/19/1989 Active
146291 Marin Municipal Water District Reclamation Requirements REC 02/17/1976 Historical
146304 Marin Municipal Water District Reclamation Requirements REC 07/20/1976 Historical
146305 Marin Municipal Water District Reclamation Requirements REC 07/20/1976 Historical
133342 Marin Municipal Water District NPDES Permit NPDESWW 03/17/2005 Historical
403786 Marin Municipal Water District Enrollee - NPDES NPDNONMUNIPRCS 11/03/2015 Active
455247 Marin Municipal Water District Enrollee - 401 Certification CERFILLEXC 03/28/2024 Active
406223 Marin Municipal Water District Enrollee - 401 Certification CERFILLEXC 06/17/2016 Historical
342101 Marin Municipal Water District Enrollee NPDNONMUNIPRCS 10/23/2015 Active
393412 Marin Municipal Water District Enrollee NPDNONMUNIPRCS 10/09/2013 Historical
386379 Marin Municipal Water District 401 Certification CERFILLEXC 09/22/2010 Historical
391258 Marin Municipal Water District 401 Certification CERFILLEXC 05/20/2011 Historical
392301 Marin Municipal Water District 401 Certification CERFILLEXC 08/30/2013 Historical
399756 Marin Municipal Water District 401 Certification CERREST 02/08/2016 Active
456344 Marin Municipal Water District 401 Certification CERFILLEXC 06/07/2024 Active
418291 Marin Municipal Water District 401 Certification CERFILLEXC 07/24/2020 Active
433167 Marin Municipal Water District 401 Certification CERFILLEXC 09/19/2019 Active
435944 Marin Municipal Water District 401 Certification CERFILLEXC 06/04/2020 Active
447285 Marin Municipal Water District 401 Certification CERFILLEXC 07/28/2022 Active
378599 Marin Municipal Water District 401 Certification CERFILLEXC 10/05/2009 Historical
378447 Marin Municipal Water District 401 Certification CERFILLEXC 08/24/2009 Historical
384481 Marin Municipal Water District 401 Certification CERFILLEXC 06/04/2012 Historical
386365 Marin Municipal Water District 401 Certification CERFILLEXC 09/22/2010 Historical
Total Regulatory Measures linked to Related Parties: 26
  
  
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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