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California Integrated Water Quality System Project (CIWQS)
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Place ID 241869 		  
  
  
  
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General Information
Region Place ID Place Name Place Type Place Address Place County
5S 241869 Lakeport City WWTP Wastewater Treatment Facility 795 Linda Lakeport, CA, 95453 Lake
Expand/Contract Related Parties
Related Parties
Party Party Type Party Name Role Classification Relationship Start Date Relationship End Date
486814 Person Daniel Buffalo Contact 04/01/2009 04/03/2017
25426 Organization Lakeport City Municipal Sewer District Owner and Operator City Agency 09/12/1980
Total Related Parties: 2
Expand/Contract Regulatory Measures
Regulatory Measures
Reg Measure ID Reg Measure Type Region Program Order No. WDID Effective Date Expiration Date Status Amended?
368729 WDR 5S WDRMUNILRG R5-2012-0025 5A170103001 03/30/2012 03/30/2022 Active N
147059 WDR 5S WDRMUNILRG 98-207 5A170103001 10/23/1998 10/22/2008 Historical N
140808 WDR 5S WDR 92-196 5A170103001 09/25/1992 09/24/1997 Historical N
139961 WDR 5S WDR 88-008 5A170103001 01/29/1988 01/29/1993 Historical N
139468 WDR 5S WDR 80-122 5A170103001 09/12/1980 Historical N
Total Reg Measures: 5
Expand/Contract Violations
Violations
Violation ID Occurred Date Violation Type (-) Violation Description Corrective Action Status Classification Source
1143652 02/07/2025 OEV Total Coliform Monthly Maximum limit is 240 MPN/100 mL and reported value was 1600 MPN/100 mL. Violation B Report
1143650 12/04/2024 CAT1 Nitrate, Total (as N) Monthly Average limit is 10 mg/L and reported value was 11 mg/L. Violation B Report
1143649 11/06/2024 CAT1 Nitrate, Total (as N) Monthly Average limit is 10 mg/L and reported value was 11 mg/L. Violation B Report
1143647 10/24/2024 Order Conditions Total coliform organisms reported in MW-1 and MW-3 above 2.2 MPN/100 mL during the 2023 second semi-annual monitoring event in violation of Groundwater Limitation G.1 of the WDRs. Violation B Report
1143648 10/11/2024 Order Conditions Total coliform organisms reported in MW-5 above 2.2 MPN/100 mL during the 2024 second semi-annual monitoring event in violation of Groundwater Limitation G.1 of the WDRs. Violation B Report
1143651 03/15/2024 OEV Total Coliform Monthly Maximum limit is 240 MPN/100 mL and reported value was 1600 MPN/100 mL. Violation B Report
1099333 12/31/2020 Order Conditions Total coliform exceeded the 7-day median groundwater limitation for MW-4, and MW-6. Violation B Report
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 7 Priority Violations: 0
*Click the "(+/-) Violation Description" link to expand and contract the violation description.
*As of 5/20/2010, the Water Board's Enforcement Policy requires that all violations be classified as 1, 2 or 3, with class 1 being the highest. Prior to this, violations were simply classified as Yes or No. If a 123 classification has been assigned to a violation that occurred before this date, that classification data will be displayed instead of the Yes/No data.
Violation Types
CAT1 = Category 1 Pollutant (Effluent Violation for Group 1 Pollutant) Order Conditions = Order Conditions
OEV = Other Effluent Violation
Expand/Contract Enforcement Actions
Enforcement Actions
Enf Id Enf Type Enf Order No. Effective Date Status
461185 Staff Enforcement Letter null 05/29/2025 Historical
446391 Staff Enforcement Letter 01/24/2022 Historical
417186 Notice of Violation 11/22/2017 Historical
393011 Notice of Violation 08/28/2013 Historical
381599 Notice of Violation 09/30/2011 Historical
380527 Notice of Violation 08/03/2011 Historical
362188 Notice of Violation null 03/03/2009 Historical
339658 Notice of Violation null 01/08/2008 Historical
325576 Cease and Desist Order R5-2007-0010 03/15/2007 Historical
318758 Notice of Violation null 01/09/2007 Historical
323427 Notice of Violation null 08/03/2006 Historical
314226 Notice of Violation null 02/08/2006 Historical
249792 Notice of Violation 01/29/2004 Historical
249407 Notice of Violation 01/15/2004 Historical
231155 Oral Communication 07/24/2000 Historical
232120 Oral Communication 04/27/2000 Historical
224038 Cease and Desist Order R5-1994-0027 01/28/1994 Historical
223814 Admin Civil Liability R5-1989-0117 06/23/1989 Historical
224014 Cease and Desist Order R5-1988-0024 01/29/1988 Historical
Total Enf Actions: 19
Expand/Contract Inspections
Inspections
Inspection ID Inspection Type Lead Inspector Actual End Date Planned Violations Attachment
59693786 B Type compliance inspection Guy Childs 04/09/2025 Y 0 Download
45116284 B Type compliance inspection Guy Childs 08/18/2021 Y 2 File Unavailable
30412129 B Type compliance inspection Guy Childs 10/19/2017 N 1 Download
13558941 B Type compliance inspection Guy Childs 07/17/2013 Y 1 [Attachments]
320870 B Type compliance inspection Sherry K. Constancio 09/26/2001 Y 0 N/A
320872 A Type compliance inspection Sherry K. Constancio 12/21/2000 Y 0 N/A
320873 A Type compliance inspection Sherry K. Constancio 04/27/2000 Y 0 N/A
320874 B Type compliance inspection Sherry K. Constancio 06/30/1999 Y 0 N/A
320871 B Type compliance inspection Arnie Inouye 06/24/1998 Y 0 N/A
320868 B Type compliance inspection Paul Marshall 03/17/1994 Y 0 N/A
320869 B Type compliance inspection Paul Marshall 05/27/1993 Y 0 N/A
Total Inspections: 11 Last Inspection: 04/09/2025
  
The current report was generated with data as of: 11/21/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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