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California Integrated Water Quality System Project (CIWQS)
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Place ID 255139 		  
  
  
  
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General Information
Region Place ID Place Name Place Type Place Address Place County
2 255139 SAM WWTP (Sewer Authority Mid-Coastside WWTP) Wastewater Treatment Facility 1000 North Cabrillo Half Moon Bay, CA, 94019-1466 San Mateo
Expand/Contract Related Parties
Related Parties
Party Party Type Party Name Role Classification Relationship Start Date Relationship End Date
527476 Person Kristin Kerr Is A Data Submitter For 05/10/2022
532542 Person Kishen Prathivadi Is Onsite Manager For 07/02/2020
569705 Person Sophie De Beukelaer Pending-is a data submitter for 11/30/2017
559962 Person Beverli Marshall Is Onsite Manager For 02/24/2017 12/19/2025
553657 Person William Burrell Case Worker 01/12/2017
542548 Person Gabriel Aguilar Is Onsite Manager For 06/02/2015
549243 Person Timothy Joseph Costello Is Onsite Manager For 12/05/2014
529972 Person Marcia Liao Case Worker 01/01/2012 07/31/2016
529978 Person Steve Leonard Is Onsite Manager For 11/04/2011 05/19/2015
323486 Person Tony Pullin Contact 11/06/2008 05/19/2015
323486 Person Tony Pullin Is Onsite Manager For 06/20/2006 05/19/2015
299851 Person John Foley Contact 06/03/2006 05/31/2010
40516 Organization SEWER AUTHORITY MID-COASTSIDE Owner Special District 09/19/1984
Total Related Parties: 13
Expand/Contract Regulatory Measures
Regulatory Measures
Reg Measure ID Reg Measure Type Region Program Order No. WDID Effective Date Expiration Date Status Amended?
451900 NPDES Permit 2 NPDMUNILRG R2-2023-0002 2 417068001 05/01/2023 04/30/2028 Active N
417027 NPDES Permit 2 NPDMUNILRG R2-2017-0040 2 417068001 01/01/2018 12/31/2022 Historical N
386885 NPDES Permit 2 NPDMUNILRG R2-2012-0061 2 417068001 10/01/2012 12/31/2017 Historical N
319608 NPDES Permit 2 NPDMUNILRG R2-2007-0003 03/01/2007 02/28/2012 Historical Y
147249 NPDES Permit 2 NPDMUNILRG R2-2000-0016 2 417068001 03/15/2000 03/15/2005 Historical N
143373 NPDES Permit 2 NPDMUNILRG 94-126 2 417068001 09/21/1994 09/21/1999 Historical N
141623 NPDES Permit 2 NPDMUNILRG 89-148 2 417068001 09/20/1989 09/20/1994 Historical N
146013 NPDES Permit 2 NPDMUNILRG 84-059 2 417068001 09/19/1984 09/19/1989 Historical N
Total Reg Measures: 8
Expand/Contract Violations
Violations
Violation ID Occurred Date Violation Type (-) Violation Description Corrective Action Status Classification Source
1139127 12/31/2024 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average limit is 30 mg/L and reported value was 33.8 mg/L at EFF-001D. We had some high eff BOD numbers that caused us to start accelerated monitoring. Due to working around the holidays and the contract lab schedule we were unable to get enough samples in to drive the monthly average down. Violation B eSMR
1139126 12/07/2024 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 mg/L and reported value was 47.5 mg/L at EFF-001D. Check of equipment and possible sampling issue, could find nothing obvious. Day one had a 70 mg/L followed by a 25 the very next day. High likely hood something cam in from the collection system. Violation B eSMR
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 2 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)
Expand/Contract Enforcement Actions
Enforcement Actions
Enf Id Enf Type Enf Order No. Effective Date Status
448319 Admin Civil Liability R2-2022-1014 10/25/2022 Historical
373093 Oral Communication 02/03/2010 Historical
355052 Admin Civil Liability SWB-2008-2-0028 11/19/2008 Historical
238926 Admin Civil Liability R2-2001-0128 11/05/2001 Historical
235728 Admin Civil Liability R2-2001-0033 03/21/2001 Historical
221804 Cease and Desist Order R2-1998-0125 12/16/1998 Active
223031 Admin Civil Liability 95-025 08/23/1995 Withdrawn
223046 Cease and Desist Order 95-150 07/19/1995 Historical
Total Enf Actions: 8
Expand/Contract Inspections
Inspections
Inspection ID Inspection Type Lead Inspector Actual End Date Planned Violations Attachment
988998 B Type compliance inspection N 0 N/A
60461023 B Type compliance inspection William Burrell 06/12/2025 Y 0 Download
48218419 B Type compliance inspection William Burrell 09/29/2022 Y 0 [Attachments]
44502856 B Type compliance inspection William Burrell 06/25/2021 Y 0 Download
36619420 B Type compliance inspection William Burrell 06/11/2019 N 0 Download
29037623 B Type compliance inspection William Burrell 06/01/2017 N 0 [Attachments]
19738942 B Type compliance inspection Marcia Liao 02/13/2015 N 0 [Attachments]
11969300 B Type compliance inspection Danny O'Connell 11/29/2012 N 0 Download
3174424 B Type compliance inspection Jared Richardson 09/10/2010 N 0 Download
1965490 B Type compliance inspection Luz Slauter 09/16/2009 N 0 Download
1558649 B Type compliance inspection Carole Leong 11/25/2008 Y 0 Download
1308464 B Type compliance inspection Mark Amendola 11/14/2007 N 0 [Attachments]
988999 B Type compliance inspection Kelly Jacques 11/03/2006 N 0 N/A
433300 B Type compliance inspection Tetra Tech Inspector 08/03/2005 N 0 N/A
434913 B Type compliance inspection 08/03/2005 N 0 N/A
336354 B Type compliance inspection Myriam Zech 07/15/2004 Y 0 N/A
435341 B Type compliance inspection 07/15/2004 N 0 N/A
332354 B Type compliance inspection Ray Balcom 12/01/2003 Y 0 N/A
328336 B Type compliance inspection Ray Balcom 02/04/2003 Y 0 N/A
290094 B Type compliance inspection Ray Balcom 06/03/2002 Y 0 N/A
290090 B Type compliance inspection Judy Huang 10/22/1999 Y 0 N/A
290095 B Type compliance inspection Judy Huang 12/30/1998 Y 0 N/A
290088 B Type compliance inspection Judy Huang 01/27/1998 Y 0 N/A
290096 B Type compliance inspection Ray Balcom 06/13/1997 Y 0 N/A
290089 B Type compliance inspection Judy Huang 03/12/1996 Y 0 N/A
290093 B Type compliance inspection Ray Balcom 10/25/1995 Y 0 N/A
290091 B Type compliance inspection Ray Balcom 10/19/1995 Y 0 N/A
290092 B Type compliance inspection Ray Balcom 05/30/1995 Y 0 N/A
Total Inspections: 28 Last Inspection: 06/12/2025
  
The current report was generated with data as of: 08/11/2026
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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