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Place ID 241598 		  
  
  
  
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General Information
Region Place ID Place Name Place Type Place Address Place County
5S 241598 Mountain House WWTP Wastewater Treatment Facility 251 East Mountain House Mountain House, CA, 95391 San Joaquin
Expand/Contract Related Parties
Related Parties
Party Party Type Party Name Role Classification Relationship Start Date Relationship End Date
520230 Person Gregory Wiltfong Is Onsite Manager For 10/08/2024
547654 Person Lauren Mancuso Is A Data Submitter For 08/07/2024
522034 Person Bonita Dennedy Is A Data Submitter For 02/15/2024
632448 Person Ron A Tobey Is Onsite Manager For 11/27/2023
559346 Person Karen L Morgan Is A Data Submitter For 06/27/2023
120215 Person Michael Joseph Buckley Is Onsite Manager For 03/22/2023
621385 Person kulwinder singh Is Onsite Manager For 02/10/2021 03/20/2024
621385 Person kulwinder singh Is A Data Submitter For 01/19/2021 02/10/2021
581899 Person Antrena Trimble Is Onsite Manager For 01/18/2019 11/04/2019
583712 Person Hamid Parsa Is Onsite Manager For 09/11/2018
113453 Person Kathy Stone Is Onsite Manager For 03/28/2017 10/17/2018
548838 Person Joel C Lindsey Is Onsite Manager For 09/20/2016 10/17/2018
557326 Person David Jesse Hernandez Is Onsite Manager For 08/08/2016 10/25/2016
524090 Person Roger Alan Migchelbrink Is Onsite Manager For 03/01/2016 06/01/2017
247391 Person James M Hampton Is Onsite Manager For 12/28/2015 02/09/2016
538982 Person Nader Shareghi Contact 01/31/2013
538983 Organization SWWC Services, Inc. Operator Privately-Owned Business 01/31/2013
29366 Organization Mountain House CSD Owner Special District 01/31/2013
523106 Person Juan Herrera Is A Data Submitter For 06/21/2010 09/30/2014
508790 Person John Miller Is Onsite Manager For 04/12/2010 12/30/2016
522034 Person Bonita Dennedy Is A Data Submitter For 04/12/2010 10/08/2019
524090 Person Roger Alan Migchelbrink Is A Data Submitter For 04/12/2010 03/01/2016
Total Related Parties: 22
Expand/Contract Regulatory Measures
Regulatory Measures
Reg Measure ID Reg Measure Type Region Program Order No. WDID Effective Date Expiration Date Status Amended?
453528 NPDES Permit 5S NPDMUNILRG R5-2023-0033 5B391078003 08/01/2023 07/31/2028 Active N
440494 Co-Permitee SB SLIC 2020-0015-DWQ 5B391078003 07/09/2020 Active N
435482 Enrollee - WDR 5S WDRNONMUNIPRCS 2003-0003-DWQ 5B39NC00297 11/22/2019 11/21/2024 Historical N
416414 NPDES Permit 5S NPDMUNILRG R5-2017-0119 5B391078003 02/01/2018 01/31/2023 Historical N
389443 NPDES Permit 5S NPDMUNILRG R5-2013-0004 5B391078003 03/22/2013 01/01/2018 Historical Y
327492 NPDES Permit 5S NPDMUNILRG R5-2007-0039 5B391078003 06/23/2007 05/01/2012 Historical N
146802 NPDES Permit 5S NPDMUNILRG R5-1998-0192 5B391078003 09/11/1998 09/01/2003 Historical N
Total Reg Measures: 7
Expand/Contract Violations
Violations
Violation ID Occurred Date Violation Type (-) Violation Description Corrective Action Status Classification Source
1135184 10/21/2024 LREP Annual SMR ( PROGRPT ) (WDR VI.C.7.a) report for 2023 (2010166) was due on 20-OCT-24 Violation B Report
1135183 10/21/2024 LREP Annual SMR ( PROGRPT ) (WDR VI.C.3.a) report for 2023 (2010094) was due on 20-OCT-24 Violation B Report
1131507 08/20/2024 OEV pH Instantaneous Minimum limit is 6.5 SU and reported value was 6.4 SU at EFF-001. Fixed new SCADA settings for PH alarms. PH alarms working as of 8/23/2024. Violation U eSMR
1132936 08/14/2024 OEV pH Instantaneous Minimum limit is 6.5 SU and reported value was 5.8 SU at EFF-001. Back pulse duration following citric acid maintenance clean cycles was increased by three times to ensure all residual product has been neutralized before resuming normal operations. Violation U eSMR
1131509 07/30/2024 OEV pH Instantaneous Minimum limit is 6.5 SU and reported value was 6.3 SU at EFF-001. Fixed new SCADA settings for PH alarms. PH alarms working as of 8/23/2024. Violation U eSMR
1131508 07/21/2024 OEV pH Instantaneous Minimum limit is 6.5 SU and reported value was 6.4 SU at EFF-001. Fixed new SCADA settings for PH alarms. PH alarms working as of 8/23/2024. Violation U eSMR
1131104 06/30/2024 Order Conditions The Discharger violated the UV system operating specification for UV dose contained in the WDRs/NOA, as listed in Table C. The Discharger stated that they lowered the target dose to 80 mJ/cm2 according to new MBR process guidelines rather than maintaining permit requirement of 100 mJ/cm2. The Discharger increased the target dose back to 105 mJ/cm2 when they realized the permit limit had not been amended. After returning to the higher target dose, the Discharger noted average dose was still dipping below the setpoint and identified several UVI sensors that were causing the dose to be calculated artificially low. The Discharger replaced the faulty sensors in July 2024 and UVI dose calculations are now above the 100 mJ/cm2 permit requirement. Violation B Report
1128632 06/02/2024 LREP Annual SMR ( PROGRPT ) (WDR VI.C.3.c) report for 2023 (2010133) was due on 01-JUN-24 Violation B Report
1131103 05/31/2024 DMON The Discharger stated the missing temperature results at EFF-002 during May 2024 were due to a miscommunication between the programmable logic controller (PLC) and the supervisory control and data acquisition (SCADA) system. The miscommunication was corrected on 29 May 2024 and EFF-002 temperature monitoring and reporting returned to normal operation. Violation B Report
1131102 05/31/2024 Order Conditions The Discharger violated the UV system operating specification for UV dose contained in the WDRs/NOA, as listed in Table C. The Discharger stated that they lowered the target dose to 80 mJ/cm2 according to new MBR process guidelines rather than maintaining permit requirement of 100 mJ/cm2. The Discharger increased the target dose back to 105 mJ/cm2 when they realized the permit limit had not been amended. After returning to the higher target dose, the Discharger noted average dose was still dipping below the setpoint and identified several UVI sensors that were causing the dose to be calculated artificially low. The Discharger replaced the faulty sensors in July 2024 and UVI dose calculations are now above the 100 mJ/cm2 permit requirement. Violation B Report
1131101 04/30/2024 Order Conditions The Discharger violated the UV system operating specification for UV dose contained in the WDRs/NOA, as listed in Table C. The Discharger stated that they lowered the target dose to 80 mJ/cm2 according to new MBR process guidelines rather than maintaining permit requirement of 100 mJ/cm2. The Discharger increased the target dose back to 105 mJ/cm2 when they realized the permit limit had not been amended. After returning to the higher target dose, the Discharger noted average dose was still dipping below the setpoint and identified several UVI sensors that were causing the dose to be calculated artificially low. The Discharger replaced the faulty sensors in July 2024 and UVI dose calculations are now above the 100 mJ/cm2 permit requirement. Violation B Report
1131100 03/31/2024 Order Conditions The Discharger violated the UV system operating specification for UV dose contained in the WDRs/NOA, as listed in Table C. The Discharger stated that they lowered the target dose to 80 mJ/cm2 according to new MBR process guidelines rather than maintaining permit requirement of 100 mJ/cm2. The Discharger increased the target dose back to 105 mJ/cm2 when they realized the permit limit had not been amended. After returning to the higher target dose, the Discharger noted average dose was still dipping below the setpoint and identified several UVI sensors that were causing the dose to be calculated artificially low. The Discharger replaced the faulty sensors in July 2024 and UVI dose calculations are now above the 100 mJ/cm2 permit requirement. Violation B Report
1131099 03/19/2024 DMON The Discharger stated the effluent pH meter would not maintain calibration and was providing inaccurate results from 06 February 2024 through 19 March 2024. A combination of daily and hourly grab samples were collected for pH during this time period. The continuous effluent pH meter probe was replaced on 19 March 2024. Violation B Report
1131094 03/06/2024 OEV pH Instantaneous Minimum limit is 6.5 SU and reported value was 6.2 SU at EFF-001. Violation B Report
1126792 03/06/2024 CAT2 Dichlorobromomethane Monthly Average limit is 1.7 ug/L and reported value was 3.49 ug/L at EFF-001. Staff is investigating root cause of exceedance and will report on findings in subsequent report. Violation B eSMR
1131093 03/05/2024 OEV pH Instantaneous Minimum limit is 6.5 SU and reported value was 6.2 SU at EFF-001. Violation B Report
1131092 03/04/2024 OEV pH Instantaneous Minimum limit is 6.5 SU and reported value was 6.4 SU at EFF-001. Violation B Report
1131091 03/01/2024 OEV pH Instantaneous Minimum limit is 6.5 SU and reported value was 6.2 SU at EFF-001. Violation B Report
1131098 02/29/2024 DMON The Discharger stated the effluent pH meter would not maintain calibration and was providing inaccurate results from 06 February 2024 through 19 March 2024. A combination of daily and hourly grab samples were collected for pH during this time period. The continuous effluent pH meter probe was replaced on 19 March 2024. Violation B Report
1131095 02/29/2024 Order Conditions The Discharger violated the UV system operating specification for UV dose contained in the WDRs/NOA, as listed in Table C. The Discharger stated that they lowered the target dose to 80 mJ/cm2 according to new MBR process guidelines rather than maintaining permit requirement of 100 mJ/cm2. The Discharger increased the target dose back to 105 mJ/cm2 when they realized the permit limit had not been amended. After returning to the higher target dose, the Discharger noted average dose was still dipping below the setpoint and identified several UVI sensors that were causing the dose to be calculated artificially low. The Discharger replaced the faulty sensors in July 2024 and UVI dose calculations are now above the 100 mJ/cm2 permit requirement. Violation B Report
1125444 02/29/2024 CAT1 Nitrite Plus Nitrate (as N) Monthly Average limit is 10 mg/L and reported value was 17.7 mg/L at EFF-001. High nitrite+nitrate (as N) levels will be within permit limits once MBR process is fully implemented. Violation B eSMR
1131090 02/24/2024 OEV pH Instantaneous Minimum limit is 6.5 SU and reported value was 6.4 SU at EFF-001. Violation B Report
1131089 02/15/2024 OEV pH Instantaneous Minimum limit is 6.5 SU and reported value was 6.4 SU at EFF-001. Violation B Report
1125443 02/14/2024 CAT1 Nitrite Plus Nitrate (as N) Weekly Average limit is 16 mg/L and reported value was 17.7 mg/L at EFF-001. High nitrite+nitrate (as N) levels will be within permit limits once MBR process is fully implemented. Violation B eSMR
1131097 02/07/2024 DMON Influent pH not continuously performed Violation B Report
1131088 02/06/2024 OEV pH Instantaneous Minimum limit is 6.5 SU and reported value was 6.4 SU at EFF-001. Violation B Report
1125442 02/03/2024 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 15 mg/L and reported value was 18.2 mg/L at EFF-001. Transition to MBR process only eliminated high TSS concentrations. Violation B eSMR
1124267 02/02/2024 LREP Annual SMR ( MONNPDES ) report for 2023 (2009893) was due on 01-FEB-24 Violation B Report
1124247 02/02/2024 LREP Annual SMR ( MONNPDES ) report for 2023 (2741197) was due on 01-FEB-24 Violation B Report
1124268 02/02/2024 LREP Annual SMR ( PROGRPT ) (MRP X.D.3) report for 2023 (2010041) was due on 01-FEB-24 Violation B Report
1131086 01/31/2024 DMON The Discharger stated the missed monthly sampling at INF-001 and EFF-001 in January 2024 was due to a changeover in staffing and an error in the Water Information Management Solution (WIMS) software. The errors were corrected, and monthly sampling was conducted according to the MRP during the subsequent monitoring periods. Violation B Report
1131087 01/31/2024 DMON The Discharger stated the missed monthly sampling at INF-001 and EFF-001 in January 2024 was due to a changeover in staffing and an error in the Water Information Management Solution (WIMS) software. The errors were corrected, and monthly sampling was conducted according to the MRP during the subsequent monitoring periods. Violation B Report
1131085 01/31/2024 Order Conditions The Discharger violated the UV system operating specification for UV dose contained in the WDRs/NOA, as listed in Table C. The Discharger stated that they lowered the target dose to 80 mJ/cm2 according to new MBR process guidelines rather than maintaining permit requirement of 100 mJ/cm2. The Discharger increased the target dose back to 105 mJ/cm2 when they realized the permit limit had not been amended. After returning to the higher target dose, the Discharger noted average dose was still dipping below the setpoint and identified several UVI sensors that were causing the dose to be calculated artificially low. The Discharger replaced the faulty sensors in July 2024 and UVI dose calculations are now above the 100 mJ/cm2 permit requirement. Violation B Report
1124686 01/31/2024 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 13 MPN/100 mL at UVS-001. MBR process online Violation B eSMR
1124690 01/31/2024 CAT1 Total Suspended Solids (TSS) Monthly Average (Mean) limit is 10 mg/L and reported value was 20.5 mg/L at EFF-001. MBR process online Violation B eSMR
1124689 01/30/2024 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at UVS-001. MBR process online Violation B eSMR
1124685 01/28/2024 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 15 mg/L and reported value was 31.1 mg/L at EFF-001. MBR process online Violation B eSMR
1124692 01/26/2024 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at UVS-001. MBR process online Violation B eSMR
1124691 01/25/2024 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at UVS-001. MBR process online Violation B eSMR
1124687 01/21/2024 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 15 mg/L and reported value was 22.8 mg/L at EFF-001. MBR process online Violation B eSMR
1124688 01/07/2024 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 15 mg/L and reported value was 17.3 mg/L at EFF-001. MBR process online Violation B eSMR
1121844 11/02/2023 LREP Quarterly SMR ( MONNPDES ) report for Q3 2023 (2705680) was due on 01-NOV-23 Violation B Report
1121617 10/21/2023 LREP Annual SMR ( PROGRPT ) (WDR VI.C.7.a) report for 2022 (2010165) was due on 20-OCT-23 Violation B Report
1135217 10/21/2023 LREP Annual SMR ( PROGRPT ) (WDR VI.C.7.a) report for 2022 (2915503) was due on 20-OCT-23 Violation B Report
1121618 10/21/2023 LREP Annual SMR ( PROGRPT ) (WDR VI.C.3.a) report for 2022 (2010093) was due on 20-OCT-23 Violation B Report
1135216 10/21/2023 LREP Annual SMR ( PROGRPT ) (WDR VI.C.3.a) report for 2022 (2915509) was due on 20-OCT-23 Violation B Report
1135470 09/30/2023 DMON Quarterly DOC was not sampled for third quarter because it was a requirement for new permit that went into effect after 3rd quarter sampling was completed. Added DOC to quarterly sampling for 4th quarter Violation U eSMR
1125209 09/23/2023 DMON The Discharger stated the ultraviolet (UV) dose and transmittance violations occurred in August 2023 and September 2023 due to issues with the transition to the new UV system. This issue has been resolved and the new UV system is continuously recording UV dose and transmittance Violation B Report
1125208 08/26/2023 DMON The Discharger stated the ultraviolet (UV) dose and transmittance violations occurred in August 2023 and September 2023 due to issues with the transition to the new UV system. This issue has been resolved and the new UV system is continuously recording UV dose and transmittance. Violation B Report
1125206 08/15/2023 Order Conditions The Discharger violated the Filtration System Operating Specifications contained in the WDRs, as listed below. The Discharger stated that the August 2023 turbidity exceedances were caused by the intrusion of sludge into the Surge Basin and ongoing problems with the Decanters. The failed Decanters were removed in September 2023 and Surge Basin cleaning restored the turbidity to levels within the Order Condition limitations. Violation B Report
1120809 08/11/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001. Cleaned the surge basin Violation B eSMR
1125207 08/06/2023 DMON Monitoring and Reporting violations are shown in Table D. The Discharger stated the ultraviolet (UV) dose and transmittance violations occurred in August 2023 and September 2023 due to issues with the transition to the new UV system. This issue has been resolved and the new UV system is continuously recording UV dose and transmittance Violation B Report
1125199 08/03/2023 OEV pH Instantaneous Maximum limit is 8.5 SU and reported value was 8.8 SU at EFF-001. The Discharger stated that the effluent pH sensor has been malfunctioning and several instantaneous high pH values have been recorded that do not indicate true effluent pH. However, the effluent pH exceedance on 3 August 2023 lasted longer than the other high pH readings during the month and could not be positively attributed to a malfunctioning pH sensor. A new primary pH sensor has been installed and a backup pH sensor is stored on site. Violation B Report
1119771 07/30/2023 Order Conditions Exceeded average daily turbidity limitation on multiple days in July 2023. The Discharger indicated the turbidity exceedances in were due to complications during replacement of the supervisory control and data acquisition (SCADA) system. The sequencing batch reactor (SBR) decanting and aeration cycle was interrupted by the SCADA system failure. The turbidity issues were resolved when the new SCADA system installation was complete and functioning properly. Removed fuse so the valve cannot open again. Violation B eSMR
1119772 07/19/2023 Order Conditions Turbidity Daily Maximum limit is 10 NTU and reported value was 12 NTU on 7/17/2023 and 11 NTU on 7/19/2023 at UVS-001. Same as previous Turbidity violation for Jule Violation B eSMR
1118912 06/29/2023 Order Conditions Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 2.5 NTU at EFF-001. Reduced the sludge flow rate to the centrifuge. Violation B eSMR
1118911 06/28/2023 Order Conditions Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 2.5 NTU at EFF-001. Reduced sludge flow rate to the centrifuge. Violation B eSMR
1120142 06/12/2023 Order Conditions UVT transmittance below 55% (reported at 47%) on 12 June 2023. The Discharger did not provide a suspected cause of the low UV transmittance (UVT) reported value, but UVT values have been consistent and in compliance since the low value recorded on 12 June 2023. Violation B Report
1117903 06/02/2023 LREP Annual SMR ( PROGRPT ) (WDR VI.C.3.c) report for 2022 (2010132) was due on 01-JUN-23 Violation B Report
1116207 03/31/2023 OEV pH Instantaneous Minimum limit is 6.5 SU and reported value was 6.2 SU at EFF-001. Clean the pH probe more often. Violation B eSMR
1113280 02/01/2023 LREP Once Only OneTime ( TECHRPT ) (TSO 3.viii) report for 2023/01/31 (2010202) was due on 31-JAN-23 Violation B Report
1112687 12/06/2022 Order Conditions Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 2.9 NTU at FIL-001. Replaced with a new pump and cleaned surge basin Violation B eSMR
1102732 02/11/2022 Order Conditions Turbidity Daily Average (Mean) limit is 2.0 JTU and reported value was 2.57 JTU at FIL-001. We switched to another decant valve and hose to fix the problem. The filter channel was cleaned to remove solids from the surge basin. Violation B eSMR
1102730 02/10/2022 Order Conditions Turbidity Daily Average (Mean) limit is 2.0 NTU and reported value was 02.72 NTU at FIL-001. We switched to another decant valve and hose to fix the problem. The filter channel was cleaned to remove solids from the surge basin. Violation B eSMR
1102734 02/09/2022 Order Conditions Turbidity Daily Average (Mean) limit is 2.0 NTU and reported value was 03.08 NTU at FIL-001. We switched to another decant valve and hose to fix the problem. The filter channel was cleaned to remove solids from the surge basin. Violation B eSMR
1102733 02/08/2022 Order Conditions Turbidity Daily Average (Mean) limit is 2.0 NTU and reported value was 3.2 NTU at FIL-001. We switched to another decant valve and hose to fix the problem. The filter channel was cleaned to remove solids from the surge basin. Violation B eSMR
1102731 02/07/2022 Order Conditions Turbidity Daily Average (Mean) limit is 2.0 NTU and reported value was 3.4 NTU at FIL-001. We switched to another decant valve and hose to fix the problem. The filter channel was cleaned to remove solids from the surge basin. Violation B eSMR
1101299 01/20/2022 OEV Total Coliform 7-Day Median limit is 02.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at UVS-001. We switched to a different decanter hose and did an 8-hour thorough cleaning of the surge basin which corrected the problem. Violation B eSMR
1099362 12/06/2021 OEV Total Coliform Instantaneous Maximum limit is 240.0 MPN/100 mL and reported value was 1600.0 MPN/100 mL at UVS-001. At present UV system is running in manual mode until the contractor¿s repair (Auto restart and Low-level Alarm) Violation B eSMR
1097209 10/14/2021 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 3.3 MPN/100 mL at UVS-001. Operators are trying to optimize the process to avoid the violation Violation B eSMR
1097215 10/06/2021 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 6.9 MPN/100 mL at UVS-001. Operators are trying to optimize the process to avoid the violation Violation B eSMR
1097210 10/05/2021 Order Conditions Turbidity Daily Average (Mean) limit is 2.0 NTU and reported value was 2.64 NTU at UVS-001. Operators are trying to optimize the process to avoid the violation Violation B eSMR
1097214 10/05/2021 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 11.2 MPN/100 mL at UVS-001. Operators are trying to optimize the process to avoid the violation Violation B eSMR
1097208 10/04/2021 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 13.0 MPN/100 mL at UVS-001. Operators are trying to optimize the process to avoid the violation Violation B eSMR
1097206 10/02/2021 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 13.0 MPN/100 mL at UVS-001. Operators are trying to optimize the process to avoid the violation Violation B eSMR
1097218 10/01/2021 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 13 MPN/100 mL at UVS-001. Operators are trying to optimize the process to avoid the violation Violation B eSMR
1098281 09/23/2021 Order Conditions Turbidity Daily Average (Mean) limit is 2.0 NTU and reported value was 2.59 NTU at UVS-001. Operation is trying to optimize the process. Violation B eSMR
1092730 06/25/2021 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 6.2 MPN/100 mL at EFF-001. Settled solids in the surge basin are being removed by the trailer-mounted pump. Violation B eSMR
1092731 06/24/2021 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.9 MPN/100 mL at EFF-001. Settled solids in the surge basin are being removed by the trailer-mounted pump. Violation B eSMR
1092737 06/23/2021 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 6.2 MPN/100 mL at EFF-001. Settled solids in the surge basin are being removed by the trailer-mounted pump. Violation B eSMR
1092729 06/22/2021 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 3.3 MPN/100 mL at EFF-001. Settled solids in the surge basin are being removed by the trailer-mounted pump. Violation B eSMR
1091510 05/31/2021 CAT1 Ammonia, Total (as N) Monthly Average (Mean) limit is 0.80 % and reported value was 00.848 % at EFF-001. The mixed liquor TSS was increased to ensure adequate treatment for Ammonia. Violation B eSMR
1092248 03/31/2021 CAT1 Ammonia, Total (as N) Monthly Average limit is 0.80 mg/L and reported value was 0.85 mg/L at EFF-001. The Discharger indicated the ammonia violation was due to incorrect sludge wasting. The issue was resolved by decreasing the wasting rate to increase the mixed liquor suspended solids (MLSS). Violation B Report
1089650 03/16/2021 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 6.8 MPN/100 mL at EFF-001. Taking more precautions at the time of sampling. Violation B eSMR
1092250 03/04/2021 DMON The Discharger indicated missing UV Dose data between 4 March 2021 and 10 March 2021 was due to a failure of the human machine interface (HMI) panel. The issue was resolved on 10 March 2021 by the Facility¿s SCADA contractor. The issue was resolved on 10 March 2021 by the Facility¿s SCADA contractor. Violation B Report
1089649 03/03/2021 CAT1 Ammonia, Total (as N) Weekly Average limit is 1.7 mg/L and reported value was 01.84 mg/L at EFF-001. Decreased wasting rate slowly to increase MLSS Violation U eSMR
1092249 02/28/2021 DMON The Discharger failed to conduct Emergency Storage Basin monitoring for wastewater diversions to the basins in February 2021. The Discharger indicated staff have been reminded regarding the monitoring requirements contained in the MRP when wastewater is diverted to the Emergency Storage Basins. The Discharger indicated staff have been reminded regarding the monitoring requirements contained in the MRP when wastewater is diverted to the Emergency Storage Basins. Violation B Report
1084615 12/24/2020 DMON Sample was taken (effluent BOD) and the lab signed for, but did not place sample bottle in their cooler. They left it in the refrigerator. Staff now checks refrigerator after sample pick up Violation B eSMR
1084614 12/24/2020 DMON Sample was taken (effluent TSS) and the lab signed for, but did not place sample bottle in their cooler. They left it in the refrigerator. Staff now checks refrigerator after sample pick up. Violation U eSMR
1085819 12/21/2020 Order Conditions Daily average UV transmittance fell below the required amount of >/= 55% on 12/21/2020 and 12/22/2020 (recorded at 34% and 49% respecively) Violation B Report
1084617 12/21/2020 OEV Total Coliform 7-Day Median limit is 02.2 MPN/100 mL and reported value was 3.3 MPN/100 mL at UVS-001. complete construction Violation B eSMR
1084616 12/17/2020 OEV Total Coliform 7-Day Median limit is 02.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at UVS-001. complete construction. Violation B eSMR
1081816 10/02/2020 Order Conditions The 1/4" tube that fed the UVT meter sprung a seep and the inside of the UVT meter got water in it causing the couvette to fog up. You could clean the couvette and the UVT would go back up to >70%, but that only lasted until the couvette fogged up again. The desiccant bag inside the meter was changed as soon as one could be found and UVT raised above 75% consistently. We now have a stock of ten desiccant bags incase this were to happen again. Violation B eSMR
1080885 09/22/2020 OEV Total Coliform Not to exceed a specific limit more than once within any 30-day period. limit is 23 MPN/100 mL and reported value was 49 MPN/100 mL at UVS-001. UV channel past UV is now scrubbed and then any algae and debris netted before any sample. Once a month during cleaning, UV channel is disinfected. Violation B eSMR
1080884 09/21/2020 OEV Total Coliform Not to exceed a specific limit more than once within any 30-day period. limit is 23 MPN/100 mL and reported value was 33 MPN/100 mL at UVS-001. UV channel past UV is now scrubbed and then any algae and debris netted before any sample. Once a month during cleaning, UV channel is disinfected. Violation B eSMR
1080883 09/08/2020 OEV Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 540 MPN/100 mL at UVS-001. UV channel past UV is now scrubbed and then any algae and debris netted before any sample. Once a month during cleaning, UV channel is disinfected. Violation B eSMR
1078787 07/13/2020 OEV Total Coliform 7-Day Median limit is 02.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at UVS-001. reset UV channel depth by adjusting slide gate buoyancy, scrubbed channel, disinfected channel and raised the MLVSS. Violation B eSMR
1078792 07/10/2020 OEV Total Coliform 7-Day Median limit is 02.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at UVS-001. reset UV channel depth by adjusting slide gate buoyancy, scrubbed channel, disinfected channel and raised the MLVSS. Violation B eSMR
1078791 07/09/2020 OEV Total Coliform 7-Day Median limit is 02.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at UVS-001. reset UV channel depth by adjusting slide gate buoyancy, scrubbed channel, disinfected channel and raised the MLVSS. Violation B eSMR
1078790 07/08/2020 OEV Total Coliform 7-Day Median limit is 02.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at UVS-001. reset UV channel depth by adjusting slide gate buoyancy, scrubbed channel, disinfected channel and raised the MLVSS. Violation B eSMR
1072942 02/24/2020 UAUTHDISC There was an unauthorized discharge of biosolids from the temporary centrifuge outside of the Biosolids Dewatering Room on 24 February 2020. The Facility¿s Sludge Centrifuge was out of service for repairs during the Board inspection of the Facility. A temporary centrifuge was being used by to dewater the biosolids. A malfunction occurred with the temporary centrifuge discharge pump causing a spill of approximately 1,500 gallons of biosolids on the paved and unpaved surfaces on the east side of the Facility. The weather was dry when the spill occurred and the biosolids did not reach surface water. Facility staff recovered some of the dried biosolids from spill by raking and shoveling the spill area. Recovered biosolids were placed in the sludge haul truck and the grit disposal container. Violation B Inspection
1071904 02/10/2020 OEV Temperature Instantaneous Maximum limit is 20 Degrees F and reported value was 21 Degrees F at EFF-002. There is little that can be done to alter the effluent temperature currently. Violation B eSMR
1071295 01/31/2020 Order Conditions There were two peak turbidities in excess of 10 ntu (one happened during a cleaning procedure where the meter was not placed on hold) and day of average turbidity > 2 ntu. Staff is continuing to work with decanter manufacturers and engineers and filter manufacturers in an attempt to lower turbidity. Violation B eSMR
1071294 01/23/2020 OEV Temperature Instantaneous Maximum limit is 20 Degrees F and reported value was 21 Degrees F at EFF-002. There is no corrective action at this time Violation B eSMR
1073490 12/31/2019 Order Conditions Exceeded Daily Average and Instantaneous Maximum turbidity limitations on multiple occasions in December 2019 Violation B Report
1073491 12/31/2019 Order Conditions UV Transmittance fell below 55% on 12/16/2019 and 12/17/2019. Violation B Report
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 106 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) CAT2 = Category 2 Pollutant (Effluent Violation for Group 2 Pollutant)
DMON = Deficient Monitoring 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
458208 Notice of Violation null 08/23/2024 Historical
456398 Notice of Violation null 03/25/2024 Historical
454593 Notice of Violation null 09/20/2023 Historical
452622 Notice of Violation null 04/25/2023 Historical
448460 Admin Civil Liability R5-2022-0508 09/08/2022 Historical
447384 Notice of Violation null 04/07/2022 Historical
445593 Admin Civil Liability R5-2021-0531 01/27/2022 Historical
446273 Notice of Violation null 12/29/2021 Historical
444410 Notice of Violation null 07/26/2021 Historical
442897 Admin Civil Liability R5-2020-0567 02/25/2021 Historical
445081 Notice of Violation null 02/11/2021 Historical
440763 Notice of Violation null 10/05/2020 Historical
438226 Expedited Payment Letter R5-2020-0528 05/22/2020 Withdrawn
440937 Notice of Violation null 05/01/2020 Historical
437727 Notice of Violation null 03/27/2020 Historical
437019 Notice of Violation null 02/27/2020 Historical
435524 Admin Civil Liability R5-2019-0535 01/09/2020 Historical
433155 Admin Civil Liability R5-2019-0513 09/09/2019 Historical
433698 Notice of Violation null 08/20/2019 Historical
429405 Notice of Violation null 03/11/2019 Historical
426673 Admin Civil Liability R5-2018-0536 01/04/2019 Historical
425097 Notice of Violation 08/31/2018 Historical
422405 Notice of Violation 06/19/2018 Historical
420712 Notice of Violation 04/05/2018 Historical
416416 Time Schedule Order R5-2017-0120 02/01/2018 Active
413786 Notice of Violation 06/08/2017 Historical
412557 Notice of Violation 04/03/2017 Historical
409904 Notice of Violation 10/12/2016 Historical
409239 Notice of Violation 08/25/2016 Historical
402851 Admin Civil Liability R5-2015-0539 10/09/2015 Historical
401986 Notice of Violation 07/02/2015 Historical
390427 Notice of Violation 05/30/2013 Historical
389022 Notice of Violation 02/08/2013 Historical
389444 Time Schedule Order R5-2013-0005 01/31/2013 Historical
387596 Notice of Violation 09/13/2012 Historical
387143 Time Schedule Order R5-2012-0073 08/03/2012 Historical
385403 Notice of Violation 06/01/2012 Historical
380511 Notice of Violation 07/18/2011 Historical
379284 Notice of Violation 05/18/2011 Historical
378298 Notice of Violation 03/22/2011 Historical
377701 Notice of Violation 02/11/2011 Historical
377384 Notice of Violation 01/26/2011 Historical
377383 Notice of Violation 01/26/2011 Historical
376966 Notice of Violation 12/07/2010 Historical
376401 Notice of Violation 10/26/2010 Historical
375877 Notice of Violation 09/13/2010 Historical
375605 Notice of Violation 08/18/2010 Historical
375162 Notice of Violation 07/20/2010 Historical
374788 Notice of Violation 06/22/2010 Historical
374809 Notice of Violation 05/25/2010 Historical
372504 Notice of Violation 12/23/2009 Historical
362559 Admin Civil Liability R5-2009-0516 03/16/2009 Historical
361807 Time Schedule Order R5-2009-0013 02/05/2009 Historical
353441 Admin Civil Liability R5-2008-0571 09/17/2008 Historical
350874 Notice of Violation 08/19/2008 Historical
361806 Time Schedule Order R5-2007-0040 05/04/2007 Historical
Total Enf Actions: 56
Expand/Contract Inspections
Inspections
Inspection ID Inspection Type Lead Inspector Actual End Date Planned Violations Attachment
51271258 B Type compliance inspection Paul Wadding 03/16/2023 N 0 Download
44281047 B Type compliance inspection Paul Wadding 06/08/2021 N 0 Download
39716900 B Type compliance inspection Paul Wadding 02/25/2020 N 1 Download
35303087 B Type compliance inspection Mohammad Farhad (Multiple) 01/23/2019 N 0 Download
26905952 B Type compliance inspection Mohammad Farhad 11/22/2016 N 2 N/A
19319936 B Type compliance inspection Mohammad Farhad 01/22/2015 N 0 [Attachments]
9224095 B Type compliance inspection Mohammad Farhad 07/18/2012 N 0 Download
8594082 B Type compliance inspection Mohammad Farhad 05/25/2012 N 0 N/A
7395364 B Type compliance inspection Kari Holmes (Multiple) 02/08/2012 N 0 Download
4233768 B Type compliance inspection Luz Slauter 12/16/2010 N 0 [Attachments]
2475249 B Type compliance inspection Ann Palmer 02/03/2010 N 0 N/A
1770071 B Type compliance inspection Tetra Tech 5S-NPDES 02/19/2009 N 1 N/A
1462279 B Type compliance inspection Tetra Tech 5S-NPDES 05/29/2008 N 8 N/A
466974 Prerequirement inspection Barry Hilton (Multiple) 03/13/2006 N 0 N/A
321646 B Type compliance inspection Karen Y Niiya 06/29/2000 Y 0 N/A
Total Inspections: 15 Last Inspection: 03/16/2023
  
The current report was generated with data as of: 11/29/2024
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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