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California Integrated Water Quality System Project (CIWQS)
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Place ID 254881 		  
  
  
  
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General Information
Region Place ID Place Name Place Type Place Address Place County
2 254881 South San Francisco-San Bruno WQCP Wastewater Treatment Facility 195 Belle Air South San Francisco, CA, 94080 San Mateo
Expand/Contract Related Parties
Related Parties
Party Party Type Party Name Role Classification Relationship Start Date Relationship End Date
624466 Person kunning zhu Is Onsite Manager For 05/25/2021
563067 Person Patrick Karinja Case Worker 03/28/2017 10/12/2018
547429 Person Andrew Wemmer Is Onsite Manager For 05/19/2015
547429 Person Andrew Wemmer Pending-is a data submitter for 05/15/2015 05/19/2015
515375 Person Jessica Watkins Case Worker 09/08/2014 03/28/2017
539657 Person Janice Chapman Is Onsite Manager For 04/11/2014
537534 Person Robert Lecel Is Onsite Manager For 01/30/2014 07/26/2017
537534 Person Robert Lecel Is A Data Submitter For 01/22/2014 07/26/2017
526698 Person Abby Partin Is Onsite Manager For 06/11/2013
41591 Organization South San Francisco City Owner 05/20/2013
539377 Person Brian Schumacker Is A Data Submitter For 04/01/2013
537534 Person Robert Lecel Is Onsite Manager For 11/08/2012 04/08/2013
303300 Person Cassie Prudhel Is A Data Submitter For 05/26/2010
139554 Person Derek A. Whitworth Regulating 05/26/2010 07/31/2014
221146 Person David Castagnola Is Onsite Manager For 05/23/2007 04/05/2013
41591 Organization South San Francisco City Owner 06/21/2006 04/05/2013
320069 Person John Madigan Case Worker 06/03/2006 06/30/2010
Total Related Parties: 17
Expand/Contract Regulatory Measures
Regulatory Measures
Reg Measure ID Reg Measure Type Region Program Order No. WDID Effective Date Expiration Date Status Amended?
162815 Unregulated 2 PTPRG 2 417038001 Never Active N
432955 NPDES Permit 2 NPDMUNILRG R2-2019-0021 2 417038001 09/01/2019 08/31/2024 Active Y
430643 Co-Permitee 2 NPDMUNILRG R2-2024-0013 2 417038001 07/01/2019 09/30/2029 Active N
395656 NPDES Permit 2 NPDMUNILRG R2-2014-0012 2 417038001 06/01/2014 05/31/2019 Historical N
389155 Co-Permitee 2 NPDMUNILRG R2-2017-0041 01/01/2013 12/31/2017 Active Y
378832 Co-Permitee 2 NPDMUNILRG R2-2011-0012 04/01/2011 12/31/2012 Historical N
355399 NPDES Permit 2 NPDMUNILRG R2-2008-0094 2 417038001 01/01/2009 12/31/2013 Historical Y
360538 Co-Permitee 2 NPDMUNILRG R2-2007-0077 03/01/2008 12/31/2012 Historical N
131614 NPDES Permit 2 NPDMUNILRG R2-2003-0010 2 417038001 04/01/2003 01/22/2008 Historical N
143136 NPDES Permit 2 NPDMUNILRG 97-086 2 417038001 07/16/1997 07/16/2002 Historical Y
142290 NPDES Permit 2 NPDMUNILRG 92-034 2 417038001 04/15/1992 04/15/1997 Historical Y
141011 NPDES Permit 2 NPDMUNILRG 87-026 2 417038001 04/15/1987 04/15/1992 Historical Y
145965 NPDES Permit 2 NPDMUNILRG 84-01303 2 417038001 03/21/1984 03/21/1989 Historical N
145560 NPDES Permit 2 NPDMUNILRG 82-016 2 417038001 04/21/1982 04/21/1987 Historical N
Total Reg Measures: 14
Expand/Contract Violations
Violations
Violation ID Occurred Date Violation Type (-) Violation Description Corrective Action Status Classification Source
1138316 11/10/2024 DMON The NPDES permit requires WQCP to monitor pH at the E-001 site. Since June 1, 2023, WQCP has implemented real-time pH monitoring at E-001 using a HACH Digital pH sensor (model #: DPD1P1), with data transmitted to SCADA via the HACH controller (model#: SC200). In November 2024, technical issues with the controller caused data transmission failures on 7 days, resulting in 3 days with data gaps more than 60 minutes and the total time of data gaps during the calendar month more than 7 hours and 26 minutes. These conditions are specified for compliance determinations using a continuous monitor (Order No. R2-2019-0021, Table 4, footnote 1). Despite the missing data, the effluent pH remained within the compliance range of 6-9 s.u., as confirmed by the upstream pH analyzer, located after the aeration basins and before the secondary clarifiers. The upstream analyzer typically records pH values similar to those measured at E-001 and demonstrated consistent compliance within the 6.0¿9.0 range throughout the month. A thorough investigation was conducted by the Lead Plant Mechanic Kenneth de Leon and Lead Operator Ryan Estrada. Hardware, communication, environmental, and SCADA-related causes were ruled out (see table below). However, software glitches or bugs remain a possible, undetermined factor. It was observed that when the analyzer sent a warning signal to the controller, data transmission between the controller and SCADA is paused. To prevent future pH data gaps occurring from data transmission problems, the following corrective actions were implemented: Disabled the Warning Signal Interruption The warning function that paused data transmission between the controller and SCADA was disabled by Kenneth de Leon. This ensures continuous data transmission even when the analyzer triggers minor warnings. Enabled Internal Data Recording Backup The data recording function within the controller was activated as a backup measure. This ensures that pH data are stored locally for at least 6 months and can be retrieved in case of any communication issues with SCADA. SCADA Modification The E-001 pH and the upstream pH (measured before E-001) will be added to the operations page of SCADA for better visibility. An alarm notification will be triggered by SCADA if there is a communication failure. When missing data are detected, the Operations Team will conduct manual measurements using the benchtop pH meter, and notify the Maintenance Team for investigation and resolution. Data Review and Report The Laboratory will compile and review the data for compliance reporting. If data are found to be missing, the Laboratory will notify both the Maintenance and Operations Teams for follow-up and resolution. Violation U eSMR
1097290 10/24/2021 CAT2 Chlorine, Total Residual Event Discharge limit is 0 mg/L and reported value was 4.25 mg/L at OV-n. WQCP staff and contractors completed the repairs to the broken subterranean sodium bisulfite dosing line on November 1, 2021. Plant Management also updated the Wet Weather Addendum of the O&M Manual to help prevent future instances, which reads: Test run water flow through the shallow water discharge sodium bisulfite line. Verify flow is accurate on the flowmeter, and that flow is exiting at the dosing location of the shallow water discharge, next to the Chlorine Contact Tanks. Make sure to valve the dosing point into the designated testing line to prevent water from entering shallow water discharge. Violation U eSMR
1097291 10/24/2021 CAT2 Chlorine, Total Residual Event Discharge limit is 0 mg/L and reported value was 6.1 mg/L at OV-n. WQCP maintenance technicians replaced the failed fans on October 26, 2021, with higher airflow capacity fans and upsized fuses to handle the additional fan amperage capacity. WQCP plant operators will continue to test the pond fill pumps on their normal preventative maintenance cycle and any time before an extensive weather system enters the forecasts. WQCP maintenance supervisor created a monthly preventative work order to inspect and test the fans to ensure they are working as designed to cool the VFDs. Violation U eSMR
1080548 06/15/2020 OEV Enterococci Monthly 90th% limit is 110 MPN/100 mL and reported value was 171 MPN/100 mL at E-001. Discharger will continue to use the 90th percentile method for reporting effluent enterococcus limitations measured at Monitoring Location EFF-001. Discharger will increase enterococcus sampling as necessary. Violation U eSMR
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 4 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
439575 Admin Civil Liability R2-2020-1029 11/03/2020 Historical
412395 Oral Communication 01/06/2016 Historical
412396 Oral Communication 01/06/2015 Historical
373102 Admin Civil Liability R2-2011-0044 07/05/2011 Historical
355003 Admin Civil Liability SWB-2008-2-0027 11/19/2008 Historical
304110 Admin Civil Liability R2-2006-0012 04/17/2006 Historical
253766 Admin Civil Liability R2-2004-0075 12/02/2004 Historical
253168 Staff Enforcement Letter 06/30/2004 Historical
242851 Admin Civil Liability R2-2002-0119 09/17/2003 Historical
242748 Admin Civil Liability R2-2001-0150 02/27/2002 Historical
226726 Oral Communication 01/18/2001 Historical
226725 Oral Communication 12/15/2000 Historical
226724 Oral Communication 12/14/2000 Historical
226723 Oral Communication 10/25/2000 Historical
225595 Admin Civil Liability R2-2000-0096 10/18/2000 Historical
226722 Oral Communication 10/10/2000 Historical
226715 Oral Communication 09/01/2000 Historical
226713 Oral Communication 08/18/2000 Historical
226714 Oral Communication 08/18/2000 Historical
226712 Oral Communication 08/07/2000 Historical
225580 Oral Communication 01/25/2000 Historical
222156 Cease and Desist Order 97-104 08/20/1997 Active
219629 Admin Civil Liability 91-106 08/21/1991 Historical
219968 Clean-up and Abatement Order 90-001 01/22/1990 Active
Total Enf Actions: 24
Expand/Contract Inspections
Inspections
Inspection ID Inspection Type Lead Inspector Actual End Date Planned Violations Attachment
51324392 B Type compliance inspection Gaurav Mittal 04/13/2023 N 0 Download
42295636 B Type compliance inspection Gaurav Mittal 11/18/2020 N 0 Download
32670016 B Type compliance inspection Patrick Karinja 06/01/2018 Y 0 Download
45514538 Preatment Audit Mike Chee 04/05/2018 N 0 Download
45514537 Pretreatment compliance Christine Wong 04/27/2016 N 0 [Attachments]
22010771 B Type compliance inspection Bill J Johnson (Multiple) 09/30/2015 Y 0 [Attachments]
15884164 B Type compliance inspection Derek A. Whitworth 03/25/2014 N 0 Download
8255338 B Type compliance inspection 03/28/2012 N 0 Download
1965491 B Type compliance inspection Brenner Perryman 10/05/2009 N 0 Download
1764142 B Type compliance inspection Daniel Connally 02/23/2009 N 0 Download
1442205 B Type compliance inspection Danny O'Connell 04/18/2008 N 0 Download
1049828 B Type compliance inspection Danny O'Connell (Multiple) 02/01/2007 N 0 [Attachments]
554439 B Type compliance inspection Mark Amendola 02/06/2006 N 0 [Attachments]
337856 B Type compliance inspection Greg Walker 01/12/2005 Y 0 N/A
335047 Pretreatment compliance Sue Ma 03/08/2004 Y 0 N/A
331538 B Type compliance inspection Ray Balcom 08/29/2003 Y 0 N/A
328057 Pretreatment compliance Sue Ma 01/31/2003 Y 0 N/A
327252 B Type compliance inspection Ray Balcom 12/18/2002 Y 0 N/A
289198 B Type compliance inspection Joseph Ernest 06/24/2002 Y 0 N/A
289199 Pretreatment compliance Sue Ma 12/13/2001 Y 0 N/A
289186 A Type compliance inspection Ray Balcom 03/11/2000 Y 0 N/A
289193 B Type compliance inspection Vijay Patel 08/12/1999 Y 0 N/A
289194 B Type compliance inspection Vijay Patel 04/16/1999 Y 0 N/A
289196 B Type compliance inspection Vijay Patel 02/08/1999 Y 0 N/A
289197 B Type compliance inspection Vijay Patel 09/22/1998 Y 0 N/A
289195 B Type compliance inspection Vijay Patel 01/23/1998 Y 0 N/A
289192 B Type compliance inspection Ray Balcom 09/25/1997 Y 0 N/A
289187 B Type compliance inspection Ray Balcom 03/18/1997 Y 0 N/A
289188 B Type compliance inspection Ray Balcom 03/11/1996 Y 0 N/A
289189 A Type compliance inspection Ray Balcom 08/18/1995 Y 0 N/A
289190 A Type compliance inspection Ray Balcom 05/30/1995 Y 0 N/A
289191 A Type compliance inspection Ray Balcom 02/01/1995 Y 0 N/A
Total Inspections: 32 Last Inspection: 04/13/2023
  
The current report was generated with data as of: 03/12/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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