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Place ID 266439 		  
  
  
  
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General Information
Region Place ID Place Name Place Type Place Address Place County
5S 266439 Northwest WWTF Wastewater Treatment Facility 3000 Airport Rio Vista, CA, 94571 Solano
Expand/Contract Related Parties
Related Parties
Party Party Type Party Name Role Classification Relationship Start Date Relationship End Date
544702 Person Derek Dill Is Onsite Manager For 04/06/2023
585607 Person Manuel Molina Is Onsite Manager For 11/08/2022 03/27/2023
526437 Person John Bailey Is Onsite Manager For 07/07/2022 09/20/2024
545655 Person Scott Anthony Biocic Is Onsite Manager For 01/09/2018 05/31/2022
553207 Organization Rio Vista City Land Owner City Agency 12/11/2015
553450 Person David S Melilli Contact 12/11/2015 09/30/2021
520752 Person Fermin Garcia Is Onsite Manager For 10/15/2015 09/20/2024
585607 Person Manuel Molina Is Onsite Manager For 06/25/2015 09/01/2015
585607 Person Manuel Molina Pending-is a data submitter for 06/24/2015 06/25/2015
321250 Person Stephen J. Danehy Is Onsite Manager For 08/15/2013 06/24/2015
520218 Person Chris McAuliffe Is Onsite Manager For 09/29/2011 08/13/2014
300355 Person David Melilli Is Onsite Manager For 09/12/2011 08/01/2013
477080 Person Kirt Hunter Contact 09/16/2010 09/30/2021
524678 Organization Veolia Water North America - West, LLC Operator 09/16/2010
37437 Organization Rio Vista City Owner City Agency 02/22/1995
Total Related Parties: 15
Expand/Contract Regulatory Measures
Regulatory Measures
Reg Measure ID Reg Measure Type Region Program Order No. WDID Effective Date Expiration Date Status Amended?
442757 NPDES Permit 5S NPDMUNILRG R5-2021-0004 5A480108001 04/01/2021 03/31/2026 Active N
440457 Co-Permitee SB SLIC 2020-0015-DWQ 5A480108001 07/09/2020 Active N
404089 NPDES Permit 5S NPDMUNILRG R5-2015-0141 5A480108001 02/01/2016 01/31/2021 Historical N
375998 NPDES Permit 5S NPDMUNILRG R5-2010-0081-02 5A480108001 09/16/2010 09/15/2015 Historical Y
132912 NPDES Permit 5S NPDMUNIOTH R5-2004-0092 5A480108001 07/20/2004 07/20/2009 Historical N
131504 NPDES Permit 5S NPDMUNIOTH 02-099 5A480108001 06/07/2002 06/07/2007 Historical N
147160 NPDES Permit 5S NPDMUNIOTH 95-215 5A480108001 09/22/1995 09/01/2000 Historical N
141722 NPDES Permit 5S NPDMUNIOTH 94-096 5A480108001 04/22/1994 04/19/2004 Historical N
Total Reg Measures: 8
Expand/Contract Violations
Violations
Violation ID Occurred Date Violation Type (-) Violation Description Corrective Action Status Classification Source
1136775 10/22/2024 Order Conditions Subsequent anomaly event where lamps were discovered to be off by operator without phone notification. Event was limited to minutes and was discovered at start of shift 10/22/24. Programmer troubleshooting, forthcoming estimate for protective programming integration. Additional checks of the UV system incorporated by operators in the interim. Events are thus far unique to channel 2. Channel 1 brought online to scrutinize further. Violation U eSMR
1136774 10/16/2024 Order Conditions UV Minimum dose of 13 mj/cm2 not met with a value of 0 mj/cm2. The duration of the event was 22 hours that included 10/16/24 until condition was discovered by operator (lamps off without alarm notification). Anomaly event. Programmer troubleshooting, forthcoming estimate for protective programming integration. Additional checks of the UV system incorporated by operators in the interim Violation U eSMR
1136773 10/15/2024 Order Conditions UV Minimum dose of 13 mj/cm2 not met with a value of 0 mj/cm2. The duration of the event was 22 hours that included 10/16/24 until condition was discovered by operator (lamps off without alarm notification). Anomaly event. Programmer troubleshooting, forthcoming estimate for protective programming integration. Additional checks of the UV system incorporated by operators in the interim. Violation U eSMR
1113374 02/02/2023 LREP Annual SMR ( TECHRPT ) (WDR VI.C.3.a Hg PPP Annual Progress) report for 2023 (2462987) was due on 01-FEB-23 Violation B Report
1112896 12/31/2022 DMON Discharger did not monitor chlorpyrifos or diazinon during 2022 as required, nor report ADWF as required. Missed sample was discovered in 2023, too late to re-sample. Violation B eSMR
1113584 12/31/2022 Deficient Reporting Discharger did not monitor and/or report effluent EC, copper, nitrate, nitrite, nitrate plus nitrite, TDS, or pyrethroid pesticides monitoring during Q4 2022; or monitor receiving water flow direction, pyrethroid pesticides monitoring, or water column toxicity monitoring during Q4 2022. Violation B Report
1111647 11/30/2022 CAT1 Ammonia, Total (as N) Monthly Average limit is 1.3 mg/L and reported value was 2.1 mg/L at EFF-001. Staff will begin to perform weekly ammonia sampling to reduce the risk of a monthly average violation. Violation B eSMR
1110771 10/31/2022 DMON Discharger did not monitor BOD during the week ending 10/8, or report the type of wastewater diverted to the pond on 10/16. A letter explaining the BOD lab error is attached with this report. Violation B eSMR
1110667 09/30/2022 DMON Discharger did not conduct characterization or pyrethroid monitoring at EFF-001; or pyrethroid, water toxicity, and flow direction monitoring at RSW-001. Violation B Report
1108107 06/30/2022 DMON Discharger did not conduct quarterly monitoring for nitrate or nitrite at EFF-001. In addition, discharger did not conduct characterization, pyrethroid, or water column toxicity monitoring during the Q2 2022 as required in the WDRs. Violation B Report
1108106 06/30/2022 DMON Discharger did not monitor effluent flow, flow at UVS-0001, or 7-day median UV dose throughout the month of June. Violation B Report
1108105 05/31/2022 DMON Discharger did not monitor effluent flow, flow at UVS-0001, or 7-day median UV dose throughout the month of May. Violation B Report
1108104 04/30/2022 DMON The discharger did not monitor effluent flow, flow at UVS-001, or 7-day UV dose throughout the month of April. In addition, the discharger did not indicate the type of wastewater diverted to the ESB on 4/10 and 4/17. Violation B Report
1104587 03/31/2022 DMON Discharger did not monitor effluent flow or flow through the UV system during March due to a failed meter. Violation B Report
1104586 02/28/2022 DMON Discharger did not monitor effluent flow or flow through the UV system during February due to a failed meter. Violation B Report
1104585 01/31/2022 DMON Discharger did not monitor effluent flow or flow through the UV system during 6-31 January as required in the MRP, due to a failed flow meter. Violation B Report
1101328 01/19/2022 OEV Temperature Difference Between Sample and Upstream Instantaneous Maximum limit is 20 Degrees F and reported value was 21 Degrees F at RSW-001. A review of temperature calibration procedures will be conducted, with the goal of discovering contributing anomalies and improving the quality of analytical results. Violation B eSMR
1104689 12/17/2021 Order Conditions UV dose was 0 mJ/cm2 for three hours on 12/17/22, in violation of UV system specification VI.C.4.b.ii. Violation B Report
1100028 12/17/2021 UAUTHDISC Discharger discharged approx. 19,800 gallons of undisinfected treated effluent over a span of 3 hours in violation of Discharge Prohibition A. Both channels have been operated in-hand at 100% power since the incident. The inlet gate was repaired on 1/5/2022 and UV Channel 1 taken offline for corrective maintenance. Xylem engineers have been contracted to troubleshoot the proprietary control system. Violation B eSMR
1102264 11/30/2021 Deficient Reporting Discharger did not report monitoring results for turbidity at FIL-001, and flow, #banks, UVT, and UVD at UVS-001 during the month of November as required in the WDRs. Violation B Report
1097416 10/27/2021 Order Conditions UV Dose 1-Hour Average (Mean) limit is 12 mJ/cm2 and reported value was 0 mJ/cm2 at EFF-001. Staff are working on developing some type of interlock to prevent this from happening again. Violation B eSMR
1105958 10/27/2021 UAUTHDISC Discharger discharged approx. 45,300 gallons of undisinfected treated effluent over a three-hour period in violation of Discharge Prohibition A. Discharger is addressing the programming malfunction. Violation B Report
1087005 11/10/2020 Deficient Reporting The discharger did not report UV transmittance results for the period between 4 November 2020 at 23:47 and 10 November 2020 at 13:13, or UV dose results for 6 November 2020, due to problems with the SCADA reporting system Violation B Report
1080580 09/19/2020 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average limit is 15 mg/L and reported value was 56 mg/L at EFF-001. None at this time. Violation B eSMR
1080578 09/16/2020 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 20 mg/L and reported value was 56 mg/L at EFF-001. There are no proposed corrective actions at this time. Violation B eSMR
1069917 12/31/2019 OEV Electrical Conductivity @ 25 Deg. C Annual Average (Mean) limit is 1500 umhos/cm and reported value was 1551 umhos/cm at EFF-001. Make the City aware of this violation so changes can be made at the source. Violation B eSMR
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 26 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) DMON = Deficient Monitoring
Deficient Reporting = Deficient Reporting LREP = Late Report
Order Conditions = Order Conditions OEV = Other Effluent Violation
UAUTHDISC = Unauthorized Discharge
Expand/Contract Enforcement Actions
Enforcement Actions
Enf Id Enf Type Enf Order No. Effective Date Status
451325 Notice of Violation null 02/22/2023 Historical
450342 Notice of Violation null 11/30/2022 Historical
449197 Notice of Violation null 09/14/2022 Historical
448458 Admin Civil Liability R5-2022-0504 09/08/2022 Historical
447888 Notice of Violation null 06/01/2022 Historical
447845 Notice of Violation 05/27/2022 Historical
447029 Notice of Violation null 03/18/2022 Historical
442429 Notice of Violation null 03/02/2021 Historical
441353 Notice of Violation null 11/19/2020 Historical
440896 Notice of Violation null 10/16/2020 Historical
436534 Notice of Violation null 01/22/2020 Historical
436514 Notice of Violation null 01/22/2020 Historical
433396 Notice of Violation null 08/02/2019 Historical
428964 Notice of Violation null 02/20/2019 Historical
425538 Notice of Violation null 10/02/2018 Historical
419710 Notice of Violation 02/23/2018 Historical
406946 Notice of Violation 04/20/2016 Historical
402959 Admin Civil Liability R5-2015-0542 10/15/2015 Historical
402890 Notice of Violation 09/09/2015 Historical
402212 Notice of Violation 06/16/2015 Historical
436439 Notice of Violation 02/23/2015 Historical
396236 Notice of Violation 05/12/2014 Historical
394097 Notice of Violation 12/02/2013 Historical
390333 Admin Civil Liability R5-2013-0541 05/14/2013 Historical
385507 Notice of Violation 06/05/2012 Historical
390024 Notice of Violation 05/25/2012 Historical
385055 Notice of Violation 05/01/2012 Historical
382983 Notice of Violation 01/11/2012 Historical
382780 Notice of Violation 01/09/2012 Historical
382621 Notice of Violation 12/23/2011 Historical
382335 Notice of Violation 11/18/2011 Historical
382617 Notice of Violation 10/07/2011 Historical
381635 Notice of Violation 09/21/2011 Historical
380933 Notice of Violation 08/12/2011 Historical
380536 Notice of Violation 07/18/2011 Historical
377970 Admin Civil Liability WQ-2011-0001-EXEC 01/28/2011 Historical
375947 Admin Civil Liability R5-2010-0539 09/13/2010 Historical
375168 Notice of Violation 07/14/2010 Historical
372513 Notice of Violation 11/23/2009 Historical
367485 Notice of Violation 04/10/2009 Historical
344795 Admin Civil Liability R5-2008-0525 05/05/2008 Historical
256536 Notice of Violation 02/28/2005 Historical
254698 Oral Communication 11/09/2004 Historical
255837 Cease and Desist Order R5-2004-0093 07/09/2004 Historical
251522 Oral Communication 06/28/2004 Historical
252109 Admin Civil Liability R5-2004-0526 06/25/2004 Historical
251840 Oral Communication 03/18/2004 Historical
250583 Oral Communication 12/31/2003 Historical
249817 Oral Communication 10/08/2003 Historical
242959 Oral Communication 07/02/2003 Historical
244855 Oral Communication 04/29/2003 Historical
256948 Oral Communication 02/05/2003 Historical
256930 Oral Communication 01/10/2003 Historical
256924 Oral Communication 11/20/2002 Historical
256920 Oral Communication 09/24/2002 Historical
256905 Oral Communication 08/29/2002 Historical
246527 Admin Civil Liability R5-2002-0513 07/10/2002 Historical
256903 Oral Communication 07/09/2002 Historical
256879 Oral Communication 05/01/2002 Historical
256918 Oral Communication 03/06/2002 Historical
231396 Oral Communication 08/22/2000 Historical
231195 Staff Enforcement Letter 06/09/2000 Historical
232435 Oral Communication 04/18/2000 Historical
232122 Oral Communication 03/15/2000 Historical
231639 Oral Communication 02/01/2000 Historical
Total Enf Actions: 65
Expand/Contract Inspections
Inspections
Inspection ID Inspection Type Lead Inspector Actual End Date Planned Violations Attachment
49174959 B Type compliance inspection Jon Rohrbough 10/20/2022 Y 0 [Attachments]
42565909 B Type compliance inspection Jon Rohrbough 12/14/2020 N 0 Download
34186559 B Type compliance inspection Ayda Soltani 10/24/2018 Y 0 Download
27893284 B Type compliance inspection Ayda Soltani 03/15/2017 N 0 [Attachments]
21409882 Complaint inspection Lucio Orellana 07/30/2015 N 0 [Attachments]
20879168 Prerequirement inspection Danielle Goode (Multiple) 06/12/2015 N 0 Download
20334602 B Type compliance inspection Lucio Orellana 04/23/2015 N 0 Download
12431470 B Type compliance inspection Lucio Orellana 05/07/2013 N 0 N/A
8658508 B Type compliance inspection Jake Albright 04/02/2012 N 0 N/A
8336950 B Type compliance inspection Matthew Reusswig 04/02/2012 N 0 Download
4932982 B Type compliance inspection Michael A Fischer 06/22/2011 N 1 N/A
1922461 B Type compliance inspection Oscar Biondi 09/17/2009 N 1 N/A
1654127 B Type compliance inspection Oscar Biondi 02/10/2009 N 1 N/A
1211095 Miscellaneous inspection Barry Hilton 07/20/2007 N 0 [Attachments]
1027903 B Type compliance inspection Kelly Jacques 01/18/2007 N 0 [Attachments]
322197 B Type compliance inspection Anand R Mamidi 12/12/2001 Y 0 N/A
322198 A Type compliance inspection Renan Jauregui 06/27/2001 Y 0 N/A
322196 B Type compliance inspection Renan Jauregui 05/10/2000 Y 0 N/A
322199 B Type compliance inspection Jim Maughan 05/21/1998 Y 0 N/A
Total Inspections: 19 Last Inspection: 10/20/2022
  
The current report was generated with data as of: 12/02/2024
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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