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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
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
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
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
1062913 07/18/2019 CAT1 Total Suspended Solids (TSS) Daily Maximum limit is 20 mg/L and reported value was 23 mg/L at EFF-001. Spoke with the operations staff in regard to proper sampling procedures and emphasis on cleaning the sampler carboys. Violation B eSMR
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 24 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: 05/03/2024
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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