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 California Integrated Water Quality System Project (CIWQS)
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Place ID 243845
  
  
  
  
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General Information
Region Place ID Place Name Place Type Place Address Place County
5S 243845 Napa Berryessa WTF Wastewater Treatment Facility 1465 Steele Canyon Napa, CA, 94558 Napa

Expand/Contract Related Parties
Related Parties
Party Party Type Party Name Role Classification Relationship Start Date Relationship End Date
530980 Person Kevin Berryhill Contact 05/31/2013
31155 Organization Napa Berryessa Resort IMP Dist Owner and Operator Special District 11/19/1965
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?
368742 WDR 5S WDRMUNILRG R5-2013-0065 5A280103002 05/31/2013 05/30/2023 Active Y
146474 WDR 5S WDRMUNILRG 95-173 5A280103002 06/23/1995 06/23/2005 Historical N
139802 WDR 5S WDRMUNILRG 85-331 5A280103002 12/06/1985 12/04/1995 Historical N
138825 WDR 5S WDRMUNILRG 66-046 5A280103002 11/19/1965 Historical N
Total Reg Measures: 4

Expand/Contract Violations
Violations
Violation ID Occurred Date Violation Type (-) Violation Description Corrective Action Status Classification Source
1128272 02/02/2024 Deficient Reporting The “Sludge Monitoring” section of the MRP states: “A composite sample of digested sludge be collected at least once per year when sludge is removed from the wastewater treatment system for disposal in accordance with EPA’s POTW Sludge Sampling and Analysis Guidance Document, August 1989, and analyzed for cadmium, nickel, chromium, lead, and zinc.” The 2023 Annual Monitoring Report states that there were no records available for sludge sampling during 2023. Violation B Report
1128268 10/31/2023 Order Conditions The September 2023 monitoring report states that due to multiple process failures that ultimately required the replacement of sheet membranes at the plant, the treatment plant was offline. Untreated wastewater was discharged in one the lined wastewater storage ponds until it could be treated, tested and discharged to the land application area. Violation B Report
1128271 09/30/2023 Order Conditions During the third quarter 2023 monitoring event, monitoring well (MW-3) was not sampled due to insufficient water. Violation B Report
1128267 09/30/2023 Order Conditions The September 2023 monitoring report states that due to multiple process failures that ultimately required the replacement of sheet membranes at the plant, the treatment plant was offline. Untreated wastewater was discharged in one the lined wastewater storage ponds until it could be treated, tested and discharged to the land application area. Violation B Report
1128266 08/31/2023 Order Conditions The August 2023 monitoring report states that due to multiple process failures that ultimately required the replacement of sheet membranes at the plant, the treatment plant was offline. Untreated wastewater was discharged in one the lined wastewater storage ponds until it could be treated, tested and discharged to the land application area. Violation B Report
1128265 07/31/2023 Order Conditions The July 2023 monitoring report states that due to multiple process failures that ultimately required the replacement of sheet membranes at the plant, the treatment plant was offline. Untreated wastewater was discharged in one the lined wastewater storage ponds until it could be treated, tested and discharged to the land application area. Violation B Report
1128270 06/30/2023 Order Conditions During the second quarter 2023 monitoring event, monitoring well (MW-3) was not sampled due to insufficient water. Violation B Report
1128264 06/30/2023 Order Conditions The June 2023 monitoring report states that due to multiple process failures that ultimately required the replacement of sheet membranes at the plant, the treatment plant was offline. Untreated wastewater was discharged in one the lined wastewater storage ponds until it could be treated, tested and discharged to the land application area. Violation B Report
1128263 05/31/2023 Order Conditions The May 2023 monitoring report states that due to multiple process failures that ultimately required the replacement of sheet membranes at the plant, the treatment plant was offline. Untreated wastewater was discharged in one the lined wastewater storage ponds until it could be treated, tested and discharged to the land application area. Violation B Report
1128262 04/30/2023 Order Conditions The April 2023 monitoring report states that due to multiple process failures that ultimately required the replacement of sheet membranes at the plant, the treatment plant was offline. Untreated wastewater was discharged in one the lined wastewater storage ponds until it could be treated, tested and discharged to the land application area. Violation B Report
1128261 03/31/2023 Order Conditions The March 2023 monitoring report states that due to multiple process failures that ultimately required the replacement of sheet membranes at the plant, the treatment plant was offline. Untreated wastewater was discharged in one the lined wastewater storage ponds until it could be treated, tested and discharged to the land application area. Violation B Report
1128260 02/28/2023 Order Conditions The February 2023 monitoring report states that due to multiple process failures that ultimately required the replacement of sheet membranes at the plant, the treatment plant was offline. Untreated wastewater was discharged in one the lined wastewater storage ponds until it could be treated, tested and discharged to the land application area. Violation B Report
1128259 01/31/2023 Order Conditions The January 2023 monitoring report states that due to multiple process failures that ultimately required the replacement of sheet membranes at the plant, the treatment plant was offline. Untreated wastewater was discharged in one the lined wastewater storage ponds until it could be treated, tested and discharged to the land application area. Violation B Report
1128269 12/31/2022 Order Conditions During the fourth quarter 2022 monitoring event, monitoring well (MW-3) was not sampled due to insufficient water. Violation B Report
1105402 12/17/2021 Order Conditions Total Coliform Organisms reported in Groundwater Monitoring Wells (MWs 3, 4 and 5) at concentrations of 33, 7.8 and 7.8 MPN/100 mL during the Fourth Quarter 2021 sampling event in violation of Groundwater Limitations F.2 of the WDRs. Violation B Report
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 15 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
Deficient Reporting = Deficient Reporting Order Conditions = Order Conditions

Expand/Contract Enforcement Actions
Enforcement Actions
Enf Id Enf Type Enf Order No. Effective Date Status
457161 Staff Enforcement Letter null 06/03/2024 Historical
448146 Staff Enforcement Letter 06/15/2022 Historical
428633 Notice of Violation 02/05/2019 Historical
407871 Notice of Violation 07/22/2016 Historical
391827 Notice of Violation 06/28/2013 Historical
387117 Time Schedule Order R5-2012-0900 08/20/2012 Historical
381240 Admin Civil Liability R5-2012-0556 08/20/2012 Historical
380281 Notice of Violation 07/20/2011 Historical
377028 Notice of Violation 12/31/2010 Historical
376186 Cease and Desist Order R5-2010-0101 09/23/2010 Historical
374496 Notice of Violation 07/01/2010 Historical
374176 Notice of Violation 05/10/2010 Historical
373881 Notice of Violation 04/22/2010 Historical
379161 Notice of Violation 03/03/2010 Historical
344691 Notice of Violation null 04/28/2008 Historical
328814 Notice of Violation null 07/17/2007 Historical
322323 Notice of Violation null 03/05/2007 Historical
316454 Cease and Desist Order R5-2006-0113 10/26/2006 Historical
314360 Notice of Violation null 03/21/2006 Historical
251736 13267 Letter 07/14/2004 Historical
252273 Notice of Violation 04/07/2004 Historical
249862 Notice of Violation 01/30/2004 Historical
245856 Notice of Violation 01/27/2003 Historical
224767 Cease and Desist Order R5-1996-0232 09/20/1996 Historical
Total Enf Actions: 24

Expand/Contract Inspections
Inspections
Inspection ID Inspection Type Lead Inspector Actual End Date Planned Violations Attachment
55161795 B Type compliance inspection Guy Childs 03/07/2024 Y 0 N/A
46692734 B Type compliance inspection Guy Childs 01/19/2022 Y 0 N/A
34674888 B Type compliance inspection Guy Childs 12/05/2018 N 1 N/A
24404504 B Type compliance inspection Guy Childs 04/21/2016 N 1 N/A
17219321 B Type compliance inspection Guy Childs 08/06/2014 N 0 N/A
2098561 B Type compliance inspection Guy Childs 01/28/2010 N 2 [Attachments]
714070 B Type compliance inspection Brendan Kenny (Multiple) 05/17/2006 N 0 [Attachments]
716141 B Type compliance inspection Guy Childs 12/08/2005 N 1 N/A
335215 B Type compliance inspection Guy Childs 07/01/2004 Y 0 N/A
333621 B Type compliance inspection Guy Childs 03/11/2004 Y 0 N/A
320960 B Type compliance inspection Dan J Little 02/20/2002 Y 0 N/A
328427 Follow-up inspection (noncompliance) Dan J Little 01/30/2002 Y 0 N/A
320958 B Type compliance inspection Unknown u 01/05/1999 Y 0 N/A
320957 Complaint inspection Kathryn Gaffney 11/29/1993 Y 0 N/A
320959 Follow-up inspection (noncompliance) Mary Knieriem 12/02/1992 Y 0 N/A
Total Inspections: 15 Last Inspection: 03/07/2024
  
The current report was generated with data as of: 11/27/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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