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Place ID 259171 		  
  
  
  
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General Information
Region Place ID Place Name Place Type Place Address Place County
8 259171 Corona WWRF #1 Wastewater Treatment Facility 2205 Railroad Corona, CA, 92880-5413 Riverside
Expand/Contract Related Parties
Related Parties
Party Party Type Party Name Role Classification Relationship Start Date Relationship End Date
623238 Person Mauro Casas Is Onsite Manager For 04/14/2021
621724 Person Korina Rangel Is A Data Submitter For 02/01/2021
524675 Organization Corona City DWP Owner City Agency 09/18/2020
603713 Person Kristian Alfelor Is Onsite Manager For 05/18/2020 02/28/2023
597842 Person William Carrasco Is A Data Submitter For 05/16/2019 07/28/2022
554847 Person Amy Betancourt Is A Data Submitter For 03/01/2016 06/07/2017
553560 Person Kathryn Hockett Is Onsite Manager For 01/28/2016
553560 Person Kathryn Hockett Is A Data Submitter For 11/02/2015 01/28/2016
524015 Person Tom Moody Is Onsite Manager For 09/14/2015
539836 Person Melissa Estrada-Maravilla Is A Data Submitter For 05/28/2015
551231 Person Marissa Flores Is A Data Submitter For 05/18/2015 07/30/2015
507685 Person Adoga Kiharangwa Is Onsite Manager For 08/26/2014 11/20/2015
546276 Person Jennifer McMullin Is A Data Submitter For 04/30/2014 02/07/2022
514029 Person Shelley Zmija Is A Data Submitter For 10/28/2009 08/19/2014
359778 Person Stacy Joyce Is A Data Submitter For 03/14/2007
306461 Person Paul Bishop Is A Data Submitter For 04/27/2006 06/01/2009
306458 Person Vijay Korisal Is A Data Submitter For 04/27/2006 06/01/2009
313867 Person Lyndy Lewis Is Onsite Manager For 04/27/2006 01/04/2011
306493 Person Christopher Nutter Is A Data Submitter For 04/27/2006 06/01/2009
300977 Person Rudy Fandel Is Onsite Manager For 02/28/2006 06/01/2009
149706 Person Kathy Irene Uhles Is A Data Submitter For 12/09/2005 06/01/2009
149588 Person Frank Jude Garza Is Onsite Manager For 12/07/2005 02/08/2024
524675 Organization Corona City DWP Owner and Operator City Agency 10/05/1995
Total Related Parties: 23
Expand/Contract Regulatory Measures
Regulatory Measures
Reg Measure ID Reg Measure Type Region Program Order No. WDID Effective Date Expiration Date Status Amended?
388612 Unregulated Never Active N
440342 Co-Permitee SB SLIC 2020-0015-DWQ 8 330108001 07/09/2020 Active N
422466 NPDES Permit 8 NPDMUNILRG R8-2020-0021 8 330108001 07/01/2020 06/30/2025 Active N
388613 NPDES Permit 8 NPDMUNILRG R8-2012-0008 8 330108001 01/01/2013 12/31/2017 Historical N
327028 NPDES Permit 8 NPDMUNILRG R8-2007-0005 8 330108001 03/02/2007 03/02/2012 Historical N
131149 NPDES Permit 8 NPDMUNILRG R8-2001-0055 8 330108001 12/19/2001 12/01/2006 Historical N
147654 NPDES Permit 8 NPDMUNILRG 98-002 8 330108001 04/17/1998 07/01/2001 Historical N
147653 NPDES Permit 8 NPDMUNILRG 96-020 8 330108001 07/12/1996 07/01/2001 Historical N
138389 NPDES Permit 8 NPDMUNILRG 84-112 8 330108001 12/14/1984 12/12/1994 Historical Y
Total Reg Measures: 9
Expand/Contract Violations
Violations
Violation ID Occurred Date Violation Type (-) Violation Description Corrective Action Status Classification Source
1139469 12/03/2024 CAT2 Dieldrin Daily Maximum limit is 0.00028 ug/L and reported value was 0.013 ug/L at M-001. Staff did not find abnormal activity that may have contributed to this detection. The City will continue to monitor dieldrin monthly at the influent and effluent of WRF No. 1 and will continue to review and update the PMP. Violation U eSMR
1139468 12/03/2024 CAT2 Dieldrin Monthly Average limit is 0.00014 ug/L and reported value was 0.0065 ug/L at M-001. Staff did not find abnormal activity that may have contributed to this detection. The City will continue to monitor dieldrin monthly at the influent and effluent of WRF No. 1 and will continue to review and update the PMP. Violation U eSMR
1138195 11/18/2024 DMON On November 27th, the City was notified by the sublab, that the WRF No. 1 BOD influent sample collected on November 18th was reanalyzed past hold time due to failure of quality control parameters in the initial analysis. The root cause was due to a drop off in the PolySeed performance over the 14-hour work day. The sublab found refrigeration of the PolySeed with removal of aliquots throughout the day for setting up of additional batches has improved the vitality of the seed. The lab will continue this path with samples being run in tandem using the natural seed until they are certain that it is sustainable. A corrective action report was requested from the lab and is attached to this report. Violation U eSMR
1138194 11/05/2024 CAT2 Cyanide, Free Available Monthly Average limit is 4.3 ug/L and reported value was 7.10 ug/L at M-001. The City will work with the lab to review results collected this year under both methods 4500CN and OIA 1677 and to determine where cyanide is being generated. Violation U eSMR
1136552 10/16/2024 DMON On October 16th, the City was notified by the laboratory that the Lab Control Sample had low bias readings for WRF No. 1 BOD influent sample collected on 10/7/24 due to instrument malfunction/stirrer on DO probe not stirring. On October 23rd, the City was notified by the laboratory that the Lab Control Sample failed for WRF No. 1 BOD influent sample collected on 10/14/24 due to low seed strength. On October 16th, the City was notified by the laboratory that the Lab Control Sample had low bias readings for WRF No. 1 BOD influent sample collected on 10/7/24. The lab conducted an investigation and found the stirrer on the DO probe was not spinning, a malfunction staff was unable to troubleshoot. The final BOD reading was made without stirring, which resulted in the bias-low readings. The WRF No. 1 BOD influent sample was reanalyzed past hold time and was within historical range. A corrective action report is included in this report. On October 23rd, the City was notified by the laboratory that the Lab Control Sample failed for WRF No. 1 BOD influent sample collected on 10/14/24 due to low seed strength. As noted in the previous corrective action report, the lab had successful trials with PolySeed with the use of bottled spring water, however, the water was ¿too clean¿ to sustain the biological activity of PolySeed. The lab is currently vetting the use of tap water and has undergone successful rounds. The natural seed remained in use and has started to fail acceptance criteria in the third week of use. Delivery was updated from every three weeks to every two weeks and has been passing viability testing. The WRF No. 1 BOD influent sample was reanalyzed past hold time and was within historical range. A corrective action report is included in this report. Violation U eSMR
1131233 07/03/2024 DMON On July 12, 2024, the City was notified by the contract laboratory, Eurofins, that the CalScience sub-laboratory had been experiencing contamination issues with one of their BOD instruments and have had failing Unseeded Control Blank and Laboratory Control Samples. They have been working on mitigating the issue by ordering new parts to replace instrument tubing and to conduct decontamination cleanups. Samples impacted include WRF No. 1 July 3rd weekly effluent BOD sample and the July 8th weekly BOD influent sample. Impacted samples with results that did not align with historical values were reanalyzed past hold time for result confirmation. A corrective action report was requested for these samples and is included in this report. The backup instrument was prepared for the next batches and troubleshooting the contamination began. The plan was to replace all tubing and carboys. Most were available in stock and some had to be ordered. The bottle cap cleaning regimen was changed to using bleach and oven drying. Once the ordered tubing had been received and all tubing was replaced, a blank study was performed. The study took the entire five days. The results were still showing detections in the USB. There was a small length of tubing that was used to extend the seed tube dispenser that had been overlooked. This tube was removed and was not replaced. Another blank study was performed. This time the blank was clean. Corrective Action: 1. Bottle cap cleaning regimen was changed to using bleach and oven drying. 2. Replacement of tubing on a schedule. Contamination of the BOD instrument system is a common issue in this analysis. The 5-day closed system leaves the outcome uncertain. We make best efforts to sustain a clean system with the unclean samples we expose it to. An additional blank study was begun on 8/19/2024 as an additional quality control measure. We expect that study to return clean and the instrument can be put back on line. Violation U eSMR
1128065 04/30/2024 DMON On May 8, 2024, the City was notified by the contract laboratory (Eurofins) that the sample for Bis (2-Ethylhexyl) Phthalate was lost by the sub lab, CalScience, during the concentration phase and re-extraction was performed past hold time. Notification was received after the monitoring period, therefore, a resample was not collected. The root cause of the issue was due to a lack of immediate notification from the sub lab to Project Managers when issues arise during extraction process. Corrective actions from CalScience include Operations initiating continuous training sessions with the Extractions Team Leads on sending Non-Conformance Memos promptly to Project Managers, City of Corona will be added to the daily emails that follows specific jobs through the laboratory to ensure they are completed on time, and another possible strategy would be to split the Calscience and/or other subcontract work off into a job 2, 3, etc. on log in. Job 2 will go to job complete quicker than the remainder of the work and could be checked before the job due date, which would double check any missing work from subcontract labs. Violation U eSMR
1128064 04/30/2024 CAT2 Cyanide, Free Available Monthly Average (Mean) limit is 4.3 ug/L and reported value was 5.5 ug/L at M-001. The City is looking into potential sources of contamination and has increased monitoring for amenable cyanide. Violation U eSMR
1126801 03/16/2024 OEV Turbidity Other limit is 10 NTU and reported value was 10 NTU at M-002. The 1B Secondary Clarifier #1 was placed back in service, turned polymer on to the 1B Clarifiers, and increased flow to WRF #1, Plant 1A, and WRF #2 to reduce the flow into Plant 1B. The EQ basins were also set-up to perform as settling tanks to help capture more solids. The RWQCB was notified of the exceedance. All violations are noted in the cover letter and included in CIWQS. Violation U eSMR
1126802 03/16/2024 OEV Turbidity Other limit is 10 NTU and reported value was 10 NTU at REC-001. The 1B Secondary Clarifier #1 was placed back in service, turned polymer on to the 1B Clarifiers, and increased flow to WRF #1, Plant 1A, and WRF #2 to reduce the flow into Plant 1B. The EQ basins were also set-up to perform as settling tanks to help capture more solids. The RWQCB was notified of the exceedance. All violations are noted in the cover letter and included in CIWQS. Violation U eSMR
1126799 03/16/2024 OEV Turbidity Other limit is 5 NTU and reported value was 10 NTU at M-002. The 1B Secondary Clarifier #1 was placed back in service, turned polymer on to the 1B Clarifiers, and increased flow to WRF #1, Plant 1A, and WRF #2 to reduce the flow into Plant 1B. The EQ basins were also set-up to perform as settling tanks to help capture more solids. The RWQCB was notified of the exceedance. All violations are noted in the cover letter and included in CIWQS. Violation U eSMR
1126800 03/16/2024 OEV Turbidity Other limit is 5 NTU and reported value was 10 NTU at REC-001. The 1B Secondary Clarifier #1 was placed back in service, turned polymer on to the 1B Clarifiers, and increased flow to WRF #1, Plant 1A, and WRF #2 to reduce the flow into Plant 1B. The EQ basins were also set-up to perform as settling tanks to help capture more solids. The RWQCB was notified of the exceedance. All violations are noted in the cover letter and included in CIWQS. Violation U eSMR
1125313 02/06/2024 DMON Following the monitoring period on March 12, 2024, the City of Corona was notified by the contract laboratory, Eurofins, that the WRF No. 1 monthly effluent sample for Bis (2-Ethylhexyl) Phthalate was not analyzed/prepared within hold time by the sub lab, CalScience. The City requested a Corrective Action Report for this incident and will be included in the March monthly report. Violation U eSMR
1124646 01/10/2024 DMON On January 16, 2024, the City of Corona was notified by the contract laboratory, Eurofins, that the WRF No. 1 total coliform sample, collected on January 10th, did not meet the 48-hour incubation requirement due to laboratory error. During the transfer to the confirmation phase, the transferred samples were not incubated, rendering unreportable results. This was an error by the analyst, where they switched the prior day's completed samples with the January 10th samples by accident. The City requested a Corrective Action Report for this incident and is included in this report: As a means of prevention of recurrence of this issue, the laboratory is using color tape to distinguish each day of the week of analysis, thereby creating a very visible means to identify potential errors. The noted corrective action plan should prevent a recurrence of such an issue. Violation U eSMR
1122968 11/25/2023 DMON On November 27, 2023, the City of Corona was notified by the contracted laboratory, Eurofins Drinking Water Testing (Eurofins), that all samples collected on November 25th by the Eurofins field technician were not preserved on ice and are not valid for compliance. This includes the WRF No. 1 daily effluent total coliform, TSS, and Ammonia-N samples. The City has requested a Corrective Action Report from the lab and will be included in the December monitoring report. Violation U eSMR
1112956 12/06/2022 CAT2 Dieldrin Daily Maximum limit is 0.00028 ug/L and reported value was 0.0037 ug/L at M-001. The City is looking into possible causes of the exceedance and will continue to monitor results monthly. Violation U eSMR
1112955 12/06/2022 CAT2 Dieldrin Monthly Average limit is 0.00014 ug/L and reported value was 0.0037 ug/L at M-001. The City is looking into possible causes of the exceedance and will continue to monitor results monthly. Violation U eSMR
1112958 12/06/2022 CAT2 Heptachlor Daily Maximum limit is 0.00042 ug/L and reported value was 0.03 ug/L at M-001. Heptachlor was added to the PMP in January 2023. The City is looking into possible causes of the exceedance and will continue to monitor results monthly. Violation U eSMR
1112957 12/06/2022 CAT2 Heptachlor Monthly Average limit is 0.00021 ug/L and reported value was 0.03 ug/L at M-001. Heptachlor was added to the PMP in January 2023. The City is looking into possible causes of the exceedance and will continue to monitor results monthly. Violation U eSMR
1111629 11/08/2022 CAT2 4,4-DDT Daily Maximum limit is 0.0012 ug/L and reported value was 0.0021 ug/L at M-001. The City is looking into possible sources of pollution. Violation U eSMR
1111628 11/08/2022 CAT2 4,4-DDT Monthly Average (Mean) limit is 0.00059 ug/L and reported value was 0.0021 ug/L at M-001. The City is looking into possible sources of pollution. Violation U eSMR
1109716 09/06/2022 CAT2 Cyanide, Free Available Daily Maximum limit is 8.5 ug/L and reported value was 18 ug/L at M-001. The City is looking into possible sources of pollution and will continue to monitor monthly. Violation U eSMR
1109714 09/06/2022 CAT2 Cyanide, Free Available Monthly Average limit is 4.3 ug/L and reported value was 18 ug/L at M-001. The City is looking into possible sources of pollution and will continue to monitor monthly. Violation U eSMR
1108842 08/13/2022 DMON 8/13/22 TSS sample lost by lab. No data available. The City has requested a Corrective Action Report from the lab for this sample. Violation U eSMR
1108836 08/02/2022 CAT2 Bis (2-Ethylhexyl) Phthalate Daily Maximum limit is 11.8 ug/L and reported value was 61 ug/L at M-001. The City is investigating potential sources of pollution. Violation U eSMR
1108839 08/02/2022 CAT2 Bis (2-Ethylhexyl) Phthalate Monthly Average limit is 5.9 ug/L and reported value was 61 ug/L at M-001. The City is investigating potential sources of pollution. Violation U eSMR
1106611 06/29/2022 CAT2 Bis (2-Ethylhexyl) Phthalate Monthly Average limit is 5.9 ug/L and reported value was 9.1 ug/L at M-001. The City is investigating potential sources of pollution. Violation B eSMR
1112163 05/16/2022 CAT2 Bis (2-Ethylhexyl) Phthalate Daily Maximum limit is 11.8 ug/L and reported value was 15 ug/L at M-001. The City has investigated potential sources of pollution as soon as it became aware of the exceedance, despite lab reporting delays. The City had reached out to the pretreatment team and replaced all sampling tubing and believes the issue has been resolved based on more recent lab results. Violation U eSMR
1112164 05/16/2022 CAT2 Bis (2-Ethylhexyl) Phthalate Monthly Average limit is 5.9 ug/L and reported value was 15 ug/L at M-001. The City has investigated potential sources of pollution as soon as it became aware of the exceedance, despite lab reporting delays. The City had reached out to the pretreatment team and replaced all sampling tubing and believes the issue has been resolved based on more recent lab results. Violation U eSMR
1101369 01/12/2022 OEV Turbidity Other limit is 5 NTU and reported value was 9.99 NTU at M-001. Operations staff turned EQs into a clarifier to capture most of the solids from going out in the effluent.  Ran polymer to keep solids from washing out of the clarifiers and alum as required per our permit.  Violation U eSMR
1101349 01/11/2022 OEV Turbidity 24-hour Average limit is 2 NTU and reported value was 4.74 NTU at M-001. Operations staff turned EQs into a clarifier to capture most of the solids from going out in the effluent.  Ran polymer to keep solids from washing out of the clarifiers and alum as required per our permit.  Violation U eSMR
1101346 01/11/2022 OEV Turbidity Other limit is 10 NTU and reported value was 11 NTU at M-001. Operations staff turned EQs into a clarifier to capture most of the solids from going out in the effluent.  Ran polymer to keep solids from washing out of the clarifiers and alum as required per our permit.  Violation U eSMR
1101372 01/11/2022 OEV Turbidity Other limit is 5 NTU and reported value was 9.99 NTU at M-001. Operations staff turned EQs into a clarifier to capture most of the solids from going out in the effluent.  Ran polymer to keep solids from washing out of the clarifiers and alum as required per our permit.  Violation U eSMR
1101354 01/10/2022 OEV Turbidity 24-hour Average limit is 2 NTU and reported value was 3.35 NTU at M-001. Operations staff turned EQs into a clarifier to capture most of the solids from going out in the effluent.  Ran polymer to keep solids from washing out of the clarifiers and alum as required per our permit.  Violation U eSMR
1101341 01/10/2022 OEV Turbidity Other limit is 10 NTU and reported value was 11 NTU at M-001. Operations staff turned EQs into a clarifier to capture most of the solids from going out in the effluent.  Ran polymer to keep solids from washing out of the clarifiers and alum as required per our permit.  Violation U eSMR
1101348 01/10/2022 OEV Turbidity Other limit is 5 NTU and reported value was 9.99 NTU at M-001. Operations staff turned EQs into a clarifier to capture most of the solids from going out in the effluent.  Ran polymer to keep solids from washing out of the clarifiers and alum as required per our permit. Violation U eSMR
1101374 01/09/2022 OEV Turbidity 24-hour Average limit is 2 NTU and reported value was 3.73 NTU at M-001. Operations staff turned EQs into a clarifier to capture most of the solids from going out in the effluent.  Ran polymer to keep solids from washing out of the clarifiers and alum as required per our permit.  Violation U eSMR
1101377 01/09/2022 OEV Turbidity Other limit is 10 NTU and reported value was 11 NTU at M-001. Operations staff turned EQs into a clarifier to capture most of the solids from going out in the effluent.  Ran polymer to keep solids from washing out of the clarifiers and alum as required per our permit.  Violation U eSMR
1101368 01/09/2022 OEV Turbidity Other limit is 5 NTU and reported value was 9.99 NTU at M-001. Operations staff turned EQs into a clarifier to capture most of the solids from going out in the effluent.  Ran polymer to keep solids from washing out of the clarifiers and alum as required per our permit.  Violation U eSMR
1101360 01/08/2022 OEV Turbidity 24-hour Average limit is 2 NTU and reported value was 3.98 NTU at M-001. Operations staff turned EQs into a clarifier to capture most of the solids from going out in the effluent.  Ran polymer to keep solids from washing out of the clarifiers and alum as required per our permit.  Violation U eSMR
1101370 01/08/2022 OEV Turbidity Other limit is 10 NTU and reported value was 11 NTU at M-001. Operations staff turned EQs into a clarifier to capture most of the solids from going out in the effluent.  Ran polymer to keep solids from washing out of the clarifiers and alum as required per our permit.  Violation U eSMR
1101347 01/08/2022 OEV Turbidity Other limit is 5 NTU and reported value was 9.99 NTU at M-001. Operations staff turned EQs into a clarifier to capture most of the solids from going out in the effluent.  Ran polymer to keep solids from washing out of the clarifiers and alum as required per our permit.  Violation U eSMR
1101342 01/07/2022 OEV Turbidity Other limit is 10 NTU and reported value was 11 NTU at M-001. Operations staff turned EQs into a clarifier to capture most of the solids from going out in the effluent.  Ran polymer to keep solids from washing out of the clarifiers and alum as required per our permit.  Violation U eSMR
1101359 01/07/2022 OEV Turbidity Other limit is 5 NTU and reported value was 9.99 NTU at M-001. Operations staff turned EQs into a clarifier to capture most of the solids from going out in the effluent.  Ran polymer to keep solids from washing out of the clarifiers and alum as required per our permit.  Violation U eSMR
1098567 11/29/2021 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 6.1 MPN/100 mL at M-001. The cause of the coliform exceedance is unknown, however, the City has initiated an audit of all contracted samplers to ensure proper sampling techniques are being used. Violation U eSMR
1098556 11/16/2021 OEV Turbidity Other limit is 10 NTU and reported value was 11 NTU at M-001. The cause of the high turbidity was due to lack of sludge hauling trailers. Operations staff made operational changes and coordinated with sludge hauling contractors in order to bring the turbidity below permit limits. Violation U eSMR
1098564 11/07/2021 OEV Turbidity Other limit is 10 NTU and reported value was 11 NTU at M-001. The cause of the high turbidity was due to lack of sludge hauling trailers. Operations staff made operational changes and coordinated with sludge hauling contractors in order to bring the turbidity below permit limits. Violation U eSMR
1098563 11/07/2021 OEV Turbidity Other limit is 5 NTU and reported value was 11 NTU at M-001. The cause of the high turbidity was due to lack of sludge hauling trailers. Operations staff made operational changes and coordinated with sludge hauling contractors in order to bring the turbidity below permit limits. Violation U eSMR
1097176 10/05/2021 CAT2 4,4-DDE Daily Maximum limit is 0.0012 ug/L and reported value was 0.0031 ug/L at M-001. The City continues to implement the Pollutant Minimization Program (PMP) for this constituent and is currently conducting additional monitoring. Violation U eSMR
1097174 10/05/2021 CAT2 4,4-DDE Monthly Average limit is 0.00059 ug/L and reported value was 0.0031 ug/L at M-001. The City continues to implement the Pollutant Minimization Program (PMP) for this constituent and is currently conducting additional monitoring. Violation U eSMR
1095946 09/13/2021 OEV Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 3 NTU at M-001. Corrective actions included requesting more trailers and reducing flow from WRF No. 2 to alleviate the stress on WRF 1B. No additional violations occurred during the month of September. Violation U eSMR
1093413 07/29/2021 OEV Turbidity 24-hour Average limit is 2 NTU and reported value was 3 NTU at M-001. Operators immediately stopped draining of digester #3 when turbidity increased, and no additional violations occurred. Violation U eSMR
1093420 07/06/2021 CAT2 4,4-DDE Daily Maximum limit is 0.0012 ug/L and reported value was 0.0053 ug/L at M-001. The City continues to implement the Pollutant Minimization Program (PMP) for this constituent and is currently conducting additional monitoring. Violation U eSMR
1093419 07/06/2021 CAT2 4,4-DDE Monthly Average limit is 0.00059 ug/L and reported value was 0.0053 ug/L at M-001. The City continues to implement the Pollutant Minimization Program (PMP) for this constituent and is currently conducting additional monitoring. Violation U eSMR
1092615 06/24/2021 OEV Turbidity 24-hour Average limit is 2 NTU and reported value was 3 NTU at M-001. Lowered the flow to WRF 1B and performed enhanced chemical treatment: turned on polymer for the secondary clarifiers and ran alum at the filter structure.  Violation U eSMR
1092611 06/23/2021 OEV Turbidity 24-hour Average limit is 2 NTU and reported value was 3 NTU at M-001. Lowered the flow to WRF 1B and performed enhanced chemical treatment: turned on polymer for the secondary clarifiers and ran alum at the filter structure.  Violation U eSMR
1092609 06/22/2021 OEV Turbidity 24-hour Average limit is 2 NTU and reported value was 3 NTU at M-001. Lowered the flow to WRF 1B and performed enhanced chemical treatment: turned on polymer for the secondary clarifiers and ran alum at the filter structure.  Violation U eSMR
1092616 06/21/2021 OEV Turbidity 24-hour Average limit is 2 NTU and reported value was 3 NTU at M-001. Lowered the flow to WRF 1B and performed enhanced chemical treatment: turned on polymer for the secondary clarifiers and ran alum at the filter structure.  Violation U eSMR
1092612 06/20/2021 OEV Turbidity 24-hour Average limit is 2 NTU and reported value was 4 NTU at M-001. Lowered the flow to WRF 1B and performed enhanced chemical treatment: turned on polymer for the secondary clarifiers and ran alum at the filter structure.  Violation U eSMR
1092627 06/20/2021 OEV Turbidity Other limit is 5 NTU and reported value was 7.16 NTU at M-001. Lowered the flow to WRF 1B and performed enhanced chemical treatment: turned on polymer for the secondary clarifiers and ran alum at the filter structure.  Violation U eSMR
1092628 06/19/2021 OEV Turbidity 24-hour Average limit is 2 NTU and reported value was 4 NTU at M-001. Lowered the flow to WRF 1B and performed enhanced chemical treatment: turned on polymer for the secondary clarifiers and ran alum at the filter structure.  Violation U eSMR
1092631 06/19/2021 OEV Turbidity Other limit is 5 NTU and reported value was 5.50 NTU at M-001. Lowered the flow to WRF 1B and performed enhanced chemical treatment: turned on polymer for the secondary clarifiers and ran alum at the filter structure.  Violation U eSMR
1092622 06/18/2021 OEV Turbidity 24-hour Average limit is 2 NTU and reported value was 4 NTU at M-001. Lowered the flow to WRF 1B and performed enhanced chemical treatment: turned on polymer for the secondary clarifiers and ran alum at the filter structure.  Violation U eSMR
1092613 06/18/2021 OEV Turbidity Other limit is 5 NTU and reported value was 5.15 NTU at M-001. Lowered the flow to WRF 1B and performed enhanced chemical treatment: turned on polymer for the secondary clarifiers and ran alum at the filter structure.  Violation U eSMR
1092604 06/17/2021 OEV Turbidity 24-hour Average limit is 2 NTU and reported value was 3 NTU at M-001. Lowered the flow to WRF 1B and performed enhanced chemical treatment: turned on polymer for the secondary clarifiers and ran alum at the filter structure.  Violation U eSMR
1089446 03/23/2021 OEV Turbidity Other limit is 5 NTU and reported value was 8.7 NTU at M-001. The cause of the high turbidity was due to hi-solids inventory overload in the system. Operations staff closely monitored turbidity levels and were able to maintain compliance with no additional turbidity exceedances. The RWQCB was immediately notified on the day of the violation. Violation U eSMR
1089450 03/02/2021 CAT2 4,4-DDE Daily Maximum limit is 0.0012 ug/L and reported value was 0.0051 ug/L at M-001. The City has implemented a PMP to locate and minimize any potential sources. Violation U eSMR
1089451 03/02/2021 CAT2 4,4-DDE Monthly Average limit is 0.00059 ug/L and reported value was 0.0036 ug/L at M-001. The City has implemented a PMP to locate and minimize any potential sources. Violation U eSMR
1088200 02/17/2021 CAT2 4,4-DDE Maximum Daily (MDEL) limit is 0.0012 ug/L and reported value was 0.0054 ug/L at M-001. This constituent has been added to the PMP. The City is also working with its contract laboratory to ensure results are received during the same month. Violation U eSMR
1088197 02/17/2021 CAT2 4,4-DDE Monthly Average limit is 0.00059 ug/L and reported value was 0.0054 ug/L at M-001. This constituent has been added to the PMP. The City is also working with its contract laboratory to ensure results are received during the same month. Violation U eSMR
1088198 02/17/2021 CAT2 Dieldrin Maximum Daily (MDEL) limit is 0.00028 ug/L and reported value was 0.004 ug/L at M-001. This constituent has been added to the PMP. The City is also working with its contract laboratory to ensure results are received during the same month. Violation U eSMR
1088196 02/17/2021 CAT2 Dieldrin Monthly Average limit is 0.00014 ug/L and reported value was 0.004 ug/L at M-001. This constituent has been added to the PMP. The City is also working with its contract laboratory to ensure results are received during the same month. Violation U eSMR
1080706 09/15/2020 CAT2 Heptachlor Epoxide Daily Maximum limit is 0.00022 ug/L and reported value was 0.0076 ug/L at M-001. The City has began to implement a PMP for Heptachlor Epoxide. Violation U eSMR
1080705 09/15/2020 CAT2 Heptachlor Epoxide Monthly Average limit is 0.00011 ug/L and reported value was 0.0076 ug/L at M-001. The City has began implementing a PMP for Heptachlor Epoxide. Violation U eSMR
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 74 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
CAT2 = Category 2 Pollutant (Effluent Violation for Group 2 Pollutant) DMON = Deficient Monitoring
OEV = Other Effluent Violation
Expand/Contract Enforcement Actions
Enforcement Actions
Enf Id Enf Type Enf Order No. Effective Date Status
454294 Admin Civil Liability R8-2023-0042 10/17/2023 Active
451949 Notice of Violation R8-2020-0021 03/08/2023 Active
378890 Admin Civil Liability R8-2011-0033 07/12/2011 Historical
369841 Time Schedule Order R8-2009-0039 07/20/2009 Historical
316826 Admin Civil Liability R8-2006-0067 12/01/2006 Historical
310390 Notice of Violation null 02/09/2006 Historical
255098 Admin Civil Liability R8-2004-0114 01/13/2005 Historical
251367 Admin Civil Liability R8-2004-0030 03/09/2004 Historical
238075 Admin Civil Liability R8-2001-0108 10/19/2001 Historical
236786 Admin Civil Liability R8-2001-0104 09/28/2001 Historical
237410 Notice of Violation 09/21/2001 Historical
237413 Admin Civil Liability R8-2001-0054 09/21/2001 Historical
234897 Oral Communication 05/17/2001 Historical
236508 Oral Communication 05/16/2001 Historical
233262 Admin Civil Liability R8-2000-0063 06/26/2000 Historical
234011 Oral Communication 12/10/1999 Historical
221751 Cease and Desist Order 99-078 10/07/1999 Historical
222971 Cease and Desist Order 96-008 07/12/1996 Historical
223083 Cease and Desist Order 95-035 05/26/1995 Historical
Total Enf Actions: 19
Expand/Contract Inspections
Inspections
Inspection ID Inspection Type Lead Inspector Actual End Date Planned Violations Attachment
56425334 A Type compliance inspection Kathleen Fong 06/20/2024 N 0 N/A
56415337 B Type compliance inspection Kathleen Fong 05/30/2024 N 0 Download
52241111 B Type compliance inspection Kathleen Fong 05/23/2023 N 0 Download
47985334 B Type compliance inspection Kathleen Fong 06/07/2022 N 0 N/A
20998508 B Type compliance inspection Kathleen Fong 06/23/2015 N 0 Download
16058957 B Type compliance inspection Ken Theisen 04/16/2014 N 0 Download
10993635 B Type compliance inspection Ken Theisen 01/09/2013 N 0 Download
6809761 B Type compliance inspection Jane Qiu 01/19/2012 N 0 Download
3041680 B Type compliance inspection Jane Qiu 11/16/2010 Y 0 Download
2062372 B Type compliance inspection Jane Qiu 02/04/2010 Y 0 Download
2006068 Pretreatment compliance Jane Qiu 11/05/2009 N 0 Download
1712624 B Type compliance inspection Julio Lara 05/14/2009 N 0 Download
1419694 A Type compliance inspection Julio Lara 05/01/2008 N 0 Download
1115437 A Type compliance inspection Julio Lara 03/29/2007 Y 0 Download
715177 Follow-up inspection (enforcement) Najah Amin 05/26/2006 Y 0 N/A
714077 A Type compliance inspection Julio Lara 03/09/2006 Y 0 Download
714069 Follow-up inspection (enforcement) Julio Lara 01/19/2006 Y 0 N/A
713452 Follow-up inspection (enforcement) Julio Lara 12/08/2005 Y 0 N/A
713235 Follow-up inspection (enforcement) Julio Lara 11/01/2005 Y 0 N/A
338658 A Type compliance inspection Julio Lara 06/02/2005 Y 0 N/A
338419 Pretreatment compliance Julio Lara 04/19/2005 Y 0 N/A
338383 B Type compliance inspection Julio Lara 11/18/2004 Y 0 N/A
334012 A Type compliance inspection Julio Lara 01/29/2004 Y 0 N/A
330194 A Type compliance inspection Julio Lara 04/29/2003 Y 0 N/A
329373 Pretreatment compliance Julio Lara 02/25/2003 Y 0 N/A
330224 Miscellaneous inspection Julio Lara 12/18/2002 Y 0 N/A
326877 B Type compliance inspection Julio Lara 11/20/2002 Y 0 N/A
279230 Pretreatment compliance Julio Lara 06/05/2002 Y 0 N/A
279136 A Type compliance inspection Julio Lara 03/22/2002 Y 0 N/A
279140 Miscellaneous inspection Julio Lara 08/30/2001 Y 0 N/A
279138 B Type compliance inspection Julio Lara 08/16/2001 Y 0 N/A
279139 Miscellaneous inspection Julio Lara 08/02/2001 Y 0 N/A
279141 Complaint inspection Julio Lara 07/23/2001 Y 0 N/A
279137 Complaint inspection Julio Lara 07/05/2001 Y 0 N/A
279107 B Type compliance inspection Julio Lara 05/17/2001 Y 0 N/A
279108 B Type compliance inspection Julio Lara 05/16/2001 Y 0 N/A
279229 Pretreatment compliance Jane Qiu 02/06/2001 Y 0 N/A
279074 Follow-up inspection (noncompliance) Julio Lara 10/06/2000 Y 0 N/A
279073 Follow-up inspection (noncompliance) Julio Lara 10/05/2000 Y 0 N/A
279072 A Type compliance inspection Julio Lara 09/27/2000 Y 0 N/A
279071 Follow-up inspection (noncompliance) Julio Lara 09/26/2000 Y 0 N/A
279069 Follow-up inspection (noncompliance) Julio Lara 09/15/2000 Y 0 N/A
279070 Follow-up inspection (noncompliance) Julio Lara 09/14/2000 Y 0 N/A
279068 Follow-up inspection (noncompliance) Julio Lara 09/08/2000 Y 0 N/A
279067 B Type compliance inspection Julio Lara 09/05/2000 Y 0 N/A
279095 B Type compliance inspection Julio Lara 01/09/2000 Y 0 N/A
279109 B Type compliance inspection Steve Mayville 12/15/1999 Y 0 N/A
279110 A Type compliance inspection Julio Lara 10/28/1999 Y 0 N/A
279098 A Type compliance inspection Julio Lara 09/21/1998 Y 0 N/A
279097 A Type compliance inspection Wanda Cross 04/28/1998 Y 0 N/A
279076 Miscellaneous inspection Mark Adelson 03/12/1997 Y 0 N/A
279049 B Type compliance inspection Tom Mbeke-Ekanem 09/06/1995 Y 0 N/A
279103 B Type compliance inspection Chuck Griffin 11/16/1994 Y 0 N/A
279105 A Type compliance inspection Chuck Griffin 05/18/1994 Y 0 N/A
279104 A Type compliance inspection Chuck Griffin 10/26/1993 Y 0 N/A
279077 A Type compliance inspection Athar Khan 04/08/1993 Y 0 N/A
279075 A Type compliance inspection Dan Brown 05/14/1991 Y 0 N/A
279129 B Type compliance inspection Getachu Eshete 01/17/1991 Y 0 N/A
279106 B Type compliance inspection Getachu Eshete 10/04/1990 Y 0 N/A
279127 A Type compliance inspection Getachu Eshete 06/06/1990 Y 0 N/A
279130 A Type compliance inspection John Mijares 05/10/1989 Y 0 N/A
279131 B Type compliance inspection John Mijares 01/25/1989 Y 0 N/A
279128 B Type compliance inspection John Mijares 10/06/1988 Y 0 N/A
279096 Miscellaneous inspection John Mijares 08/09/1988 Y 0 N/A
279100 A Type compliance inspection John Mijares 05/12/1988 Y 0 N/A
279101 Miscellaneous inspection John Mijares 04/01/1988 Y 0 N/A
279102 Miscellaneous inspection John Mijares 01/29/1988 Y 0 N/A
279099 B Type compliance inspection John Mijares 01/12/1988 Y 0 N/A
279134 B Type compliance inspection John Mijares 01/06/1988 Y 0 N/A
279135 B Type compliance inspection John Mijares 09/30/1987 Y 0 N/A
279133 A Type compliance inspection John Mijares 06/17/1987 Y 0 N/A
279132 B Type compliance inspection John Mijares 03/27/1987 Y 0 N/A
Total Inspections: 72 Last Inspection: 06/20/2024
  
The current report was generated with data as of: 02/20/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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