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California Integrated Water Quality System Project (CIWQS)
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Place ID 244566 		  
  
  
  
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General Information
Region Place ID Place Name Place Type Place Address Place County
2 244566 North San Mateo County Sanitation District WWTP Wastewater Treatment Facility 153 Lake Merced Daly City, CA, 94015 San Mateo
Expand/Contract Related Parties
Related Parties
Party Party Type Party Name Role Classification Relationship Start Date Relationship End Date
495866 Person Joshua Cosgrove Is Onsite Manager For 11/30/2022
569108 Person Tharanga Abeysekera Is A Data Submitter For 10/17/2017
569027 Person Thomas J Piccolotti Is A Data Submitter For 10/10/2017 08/30/2022
566505 Person Ward Donnelly Is A Data Submitter For 08/09/2017 01/24/2024
553657 Person William Burrell Case Worker 01/10/2017
530402 Person Gregory M. Krauss Is Onsite Manager For 05/05/2016
529972 Person Marcia Liao Case Worker 01/01/2012 07/31/2016
530402 Person Gregory M. Krauss Is A Data Submitter For 12/06/2011 05/03/2016
539736 Person Cynthia Royer Is Onsite Manager For 03/09/2010 12/31/2016
523279 Person Kevin J Brown Operator 12/18/2008
523279 Person Kevin J Brown Is Onsite Manager For 12/18/2008 05/04/2016
331124 Person Patricia Martel Jurisdiction Over 06/30/2006
78769 Person Patrick Sweetland Is Onsite Manager For 06/30/2006 06/07/2018
331124 Person Patricia Martel Responsibility For 06/30/2006 05/04/2016
226646 Person Mark Baker Contact 06/03/2006 12/18/2008
539736 Person Cynthia Royer Contact 06/03/2006 12/31/2016
31673 Organization North San Mateo County Sanitation District Owner Special District 06/20/1984
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?
450528 NPDES Permit 2 NPDMUNILRG R2-2022-0036 2 417021002 02/01/2023 01/31/2028 Active N
414390 NPDES Permit 2 NPDMUNILRG R2-2017-0026 2 417021001 09/01/2017 08/31/2022 Historical N
383103 NPDES Permit 2 NPDMUNILRG R2-2012-0013 2 417021001 04/01/2012 03/31/2017 Historical N
313195 NPDES Permit 2 NPDMUNILRG R2-2006-0068 2 417021001 12/01/2006 11/30/2011 Historical Y
147250 NPDES Permit 2 NPDMUNILRG R2-2000-0017 2 417021001 03/15/2000 03/15/2005 Historical N
143378 NPDES Permit 2 NPDMUNILRG 94-140 2 417021001 10/19/1994 10/19/1999 Historical N
141622 NPDES Permit 2 NPDMUNILRG 89-147 2 417021001 09/20/1989 09/20/1994 Historical Y
145981 NPDES Permit 2 NPDMUNILRG 84-034 2 417021001 06/20/1984 06/20/1989 Historical N
Total Reg Measures: 8
Expand/Contract Violations
Violations
Violation ID Occurred Date Violation Type (-) Violation Description Corrective Action Status Classification Source
1130101 06/30/2024 CAT1 Carbonaceous Biochemical Oxygen Demand (CBOD) (5-day @ 20 Deg. C) Monthly Average limit is 25 mg/L and reported value was 32 mg/L at EFF-001. Reactor project expected to be completed by the end of 2024. Violation U eSMR
1128968 05/31/2024 CAT1 Carbonaceous Biochemical Oxygen Demand (CBOD) (5-day @ 20 Deg. C) Monthly Average limit is 25 mg/L and reported value was 34 mg/L at EFF-001. Reactor project expected to be completed by the end of 2024. Violation U eSMR
1128967 05/11/2024 DMON For the week starting 5/5/2024 ending 5/11/2024: cBOD sampled on 5/8/2024 was sent to Alpha Analytical Lab for analysis. 5/9/2024 and 5/10/2024 cBOD samples were sent to CEL Analytical Lab for analysis. Alpha Analytical Lab reported cBOD as > 22mg/L. CEL Analytical lab invalidated the samples sent on 5/9/2024 and 5/10/2024. Therefore, we did not have a cBOD result for the week ending 5/11/2024. Spoke with both analytical labs and put in corrective actions to prevent future errors. Alpha Analytical will analyze additional dilutions and CEL analytical has modified their seed preparation. Violation U eSMR
1112686 12/31/2022 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 50 mg/L at EFF-001. Please see cover letter. Violation U eSMR
1090661 04/22/2021 CAT2 Chlorine, Total Residual Instantaneous Maximum limit is 4.3 mg/L and reported value was 6.0 mg/L at EFF-001. Letter attached Violation U eSMR
1083369 11/30/2020 CAT1 Total Suspended Solids (TSS) Monthly Average limit is 30 mg/L and reported value was 31.7 mg/L at EFF-001. Please see submittal letter. Violation U eSMR
1083370 11/21/2020 CAT1 Total Suspended Solids (TSS) Weekly Average limit is 45 mg/L and reported value was 53.5 mg/L at EFF-001. Please see submittal letter. Violation U eSMR
1082154 10/31/2020 CAT1 Carbonaceous Biochemical Oxygen Demand (CBOD) (5-day @ 20 Deg. C) Monthly Average limit is 25 mg/L and reported value was 44.3 mg/L at EFF-001. Please see submittal letter. Violation U eSMR
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 8 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
Expand/Contract Enforcement Actions
Enforcement Actions
Enf Id Enf Type Enf Order No. Effective Date Status
450967 Admin Civil Liability R2-2023-1005 05/02/2023 Historical
407976 Staff Enforcement Letter 10/05/2015 Historical
407979 Oral Communication 02/17/2015 Historical
394024 Notice of Violation null 11/22/2013 Historical
393906 Oral Communication 09/26/2013 Historical
393889 Oral Communication 08/01/2013 Historical
381768 Admin Civil Liability R2-2012-0080 01/15/2013 Historical
389772 Oral Communication 11/30/2012 Historical
255345 Admin Civil Liability R2-2004-0097 02/04/2005 Historical
250023 Admin Civil Liability R2-2002-0036 09/17/2003 Historical
Total Enf Actions: 10
Expand/Contract Inspections
Inspections
Inspection ID Inspection Type Lead Inspector Actual End Date Planned Violations Attachment
56482136 B Type compliance inspection William Burrell 06/27/2024 N 0 Download
48218418 B Type compliance inspection William Burrell 06/22/2022 N 0 Download
36374937 B Type compliance inspection William Burrell 05/15/2019 N 0 Download
28517007 B Type compliance inspection William Burrell 04/24/2017 N 0 [Attachments]
19667911 B Type compliance inspection Marcia Liao 02/11/2015 N 0 [Attachments]
11095041 B Type compliance inspection Jared Richardson 10/19/2012 N 0 Download
6832242 Field Oversight Tong Yin 02/24/2011 N 0 N/A
3174420 B Type compliance inspection Jared Richardson 09/09/2010 N 0 Download
2111267 B Type compliance inspection Matt Oxsalida 12/08/2009 N 0 Download
1557744 B Type compliance inspection Carole Leong 10/29/2008 Y 0 Download
1308468 B Type compliance inspection Mark Amendola 11/07/2007 N 0 [Attachments]
987637 B Type compliance inspection Kelly Jacques 11/02/2006 N 0 [Attachments]
555341 B Type compliance inspection Matt Oxsalida 03/22/2006 N 0 [Attachments]
335029 B Type compliance inspection Greg Walker 05/18/2004 Y 0 N/A
331518 B Type compliance inspection Ray Balcom 09/04/2003 Y 0 N/A
327238 B Type compliance inspection Ray Balcom 12/09/2002 Y 0 N/A
290024 B Type compliance inspection Joseph Ernest 06/24/2002 Y 0 N/A
290032 A Type compliance inspection Ray Balcom 06/26/2001 Y 0 N/A
290023 B Type compliance inspection James Nusrala 06/28/2000 Y 0 N/A
290030 B Type compliance inspection Judy Huang 04/23/1999 Y 0 N/A
290031 B Type compliance inspection Judy Huang 09/21/1998 Y 0 N/A
290025 B Type compliance inspection Judy Huang 10/17/1997 Y 0 N/A
290027 B Type compliance inspection Ray Balcom 10/13/1995 Y 0 N/A
290029 B Type compliance inspection Ray Balcom 08/11/1995 Y 0 N/A
290026 B Type compliance inspection Judy Huang 06/30/1995 Y 0 N/A
290028 A Type compliance inspection Ray Balcom 06/20/1994 Y 0 N/A
Total Inspections: 26 Last Inspection: 06/27/2024
  
The current report was generated with data as of: 10/23/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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