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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
25426 Lakeport City Municipal Sewer District City Agency 225 Park Street Lakeport, CA 95453 707-263-5615(+) None
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
630847 Mun Sewer Dist No 1 Plan No 1 CS Lake 5S Collection_System Owner 04/03/2006 03/25/2009
237951 Lakeport MS4 Phase II Lake 5S MS4 Owner 10/27/2003 None
241869 Lakeport City WWTP Lake 5S Wastewater Treatment Facility Owner and Operator 09/12/1980 None
Total Related Places: 3
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
529848 Matthew Johnson Person Legally Responsible Official 03/30/2012 01/15/2013 None
300342 Mark Brannigan Person Legally Responsible Official 03/30/2012 04/03/2017 None
486814 Daniel Buffalo Person Legally Responsible Official 03/30/2012 04/03/2017 None
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?
139468 WDR 5S 5A170103001 Historical WDR 80-122 09/12/1980 01/28/1988 Discharger 09/12/1980 None N
139961 WDR 5S 5A170103001 Historical WDR 88-008 01/29/1988 09/24/1992 Discharger 01/29/1988 None N
140808 WDR 5S 5A170103001 Historical WDR 92-196 09/25/1992 10/22/1998 Discharger 09/25/1992 None N
147059 WDR 5S 5A170103001 Historical WDRMUNILRG 98-207 10/23/1998 03/29/2012 Discharger 10/23/1998 None N
194435 Enrollee 5S 5A17NP00005 Historical MNSTW2 2003-0005-DWQ 07/06/2004 06/30/2013 Discharger 09/01/2005 None N
360314 Enrollee 5S 5SSO11006 Historical SSOMUNISML 2006-0003-DWQ None 01/28/2009 Discharger 01/28/2009 None N
368729 WDR 5S 5A170103001 Active WDRMUNILRG R5-2012-0025 03/30/2012 None Discharger 10/23/1998 None N
Total Regulatory Measures: 7
  
  
  
  
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.
1143652 02/07/2025 OEV Total Coliform Monthly Maximum limit is 240 MPN/100 mL and reported value was 16 Violation None Report Lakeport City WWTP 368729 R5-2012-0025 Y
1143650 12/04/2024 CAT1 Nitrate, Total (as N) Monthly Average limit is 10 mg/L and reported value was 11 Violation None Report Lakeport City WWTP 368729 R5-2012-0025 Y
1143649 11/06/2024 CAT1 Nitrate, Total (as N) Monthly Average limit is 10 mg/L and reported value was 11 Violation None Report Lakeport City WWTP 368729 R5-2012-0025 Y
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: 3
*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
461185 Staff Enforcement Letter None SEL 05/29/2025 for Lakeport City Municipal Sewer District WDRMUNILRG 05/29/2025 Historical
446391 Staff Enforcement Letter None SEL 01/24/2022 for Lakeport City Municipal Sewer District WDRMUNILRG 01/24/2022 Historical
232120 Oral Communication None OC 04/27/2000 for Lakeport City WWTP WDR 04/27/2000 Historical
231155 Oral Communication None OC 07/24/2000 for Lakeport City WWTP WDR 07/24/2000 Historical
376774 Notice to Comply None NSNC 10/05/2010 for Lakeport City Municipal Sewer District, Lakeport MS4 Phase I MNSTW2 10/05/2010 Historical
318758 Notice of Violation None NOV 01/09/2007 for City of Lakeport Municipal Sewer District WDR 01/09/2007 Historical
381599 Notice of Violation None NOV 11/12/2011 for Lakeport City Municipal Sewer District WDR 09/30/2011 Historical
249792 Notice of Violation None NOV 01/29/2004 for Lakeport City, Mun Sewer Dist No 1 Plan No WDR 01/29/2004 Historical
380527 Notice of Violation None NOV 08/03/2011 for Lakeport City Municipal Sewer District WDR 08/03/2011 Historical
249407 Notice of Violation None NOV 01/15/2004 for Lakeport City, Mun Sewer Dist No 1 Plan No 1 WDR 01/15/2004 Historical
393011 Notice of Violation None NOV 08/28/2013 for Lakeport City Municipal Sewer District WDRMUNILRG 08/28/2013 Historical
323427 Notice of Violation None NOV 08/03/2006 for City of Lakeport Mun. Sewer Dist., Lakeport City WWTP WDR 08/03/2006 Historical
339658 Notice of Violation None NOV 01/08/2008 for City of Lakeport WDR 01/08/2008 Historical
362188 Notice of Violation None NOV 03/03/2009 for City of Lakeport WDR 03/03/2009 Historical
314226 Notice of Violation None NOV 02/08/2006 for City of Lakeport Mun Sewer Dist WDR 02/08/2006 Historical
417186 Notice of Violation None NOV 11/22/2017 for Lakeport City Municipal Sewer District WDRMUNILRG 11/22/2017 Historical
325576 Cease and Desist Order R5-2007-0010 CDO R5-2007-0010 03/15/2007 for City of Lakeport Municipal Sewer Dist. WDR 03/15/2007 Historical
224014 Cease and Desist Order R5-1988-0024 CDO R5-1988-0024 for Lakeport City, Municpal Sewer District 1 WDR 01/29/1988 Historical
224038 Cease and Desist Order R5-1994-0027 CDO R5-1994-0027 for Lakeport City, Mun Sewer Dist No 1 Plan No 1 WDR 01/28/1994 Historical
223814 Admin Civil Liability R5-1989-0117 ACLO R5-1989-0117 for Lakeport City, Mun Sewer Dist No 1 Plan No 1 WDR 06/23/1989 Historical
Total Enforcement Actions: 20
  
  
  
  
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: 10/31/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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