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Place ID 631006 		  
  
  
  
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General Information
Region Place ID Place Name Place Type Place Address Place County
2 631006 San Mateo CIty CS Collection_System 330 West 20Th San Mateo, CA, 94403 San Mateo
Expand/Contract Related Parties
Related Parties
Party Party Type Party Name Role Classification Relationship Start Date Relationship End Date
653405 Person Gustavo Lopez Is A Data Submitter For 12/05/2025
650117 Person jose godinez Is A Data Submitter For 03/28/2025
649568 Person Paulesia Maile Is A Data Submitter For 03/03/2025
649335 Person David Patton Is A Data Submitter For 02/20/2025
646288 Person Aukuso Kaufusi Is A Data Submitter For 07/17/2024
632393 Person sosefo latu veamatahau Is A Data Submitter For 04/04/2022
632221 Person manuel fuentes Is A Data Submitter For 03/29/2022 02/10/2025
632156 Person William Antonio Aviles Navarro Is A Data Submitter For 03/28/2022 03/03/2025
540176 Person Eric Morkve Is Onsite Manager For 03/16/2022
545517 Person Sarah Scheidt Is Onsite Manager For 03/02/2022 08/21/2023
624358 Person Carlos Gudino Is A Data Submitter For 05/14/2021 10/26/2021
624357 Person Richard Cisneroz Is A Data Submitter For 05/14/2021 09/06/2023
621559 Person John DiMatteo Is A Data Submitter For 01/26/2021
540176 Person Eric Morkve Is A Data Submitter For 01/05/2021 01/06/2021
540176 Person Eric Morkve Is A Data Submitter For 04/13/2020 12/09/2020
593404 Person Jose Antonio Baltodano Is Onsite Manager For 01/10/2019
593229 Person Rick-Gabriel Pina Is Onsite Manager For 01/03/2019 02/03/2020
553509 Person Curt Pihl Is A Data Submitter For 10/28/2015 01/23/2019
499591 Person Steve Camilleri Is Onsite Manager For 07/16/2015 03/12/2025
544796 Person Bryan McKevitt Is A Data Submitter For 01/08/2014 08/01/2014
543983 Person Raymond Jackson Is Onsite Manager For 11/07/2013 10/31/2018
452008 Person Bob Correa Is Onsite Manager For 08/08/2013 04/20/2017
540176 Person Eric Morkve Is A Data Submitter For 05/23/2013 01/04/2019
536261 Person Robert Learmonth Is A Data Submitter For 08/16/2012 03/28/2022
536256 Person Eric Morkue Is A Data Submitter For 08/16/2012 10/21/2013
536260 Person Silvia Pauli Is A Data Submitter For 08/16/2012 01/04/2019
536262 Person Noel Padilla Is A Data Submitter For 08/16/2012 01/04/2019
521728 Person Gerri Mattocks Is A Data Submitter For 03/18/2010 01/27/2011
499591 Person Steve Camilleri Is A Data Submitter For 02/13/2009 07/16/2015
537801 Person Ed Vigil Is Onsite Manager For 07/24/2008 07/08/2013
479647 Person Sarah Parrish Is Onsite Manager For 07/24/2008 12/27/2012
447507 Person Rob Lecel Is A Data Submitter For 11/16/2007 01/27/2011
447506 Person Alan Atwater Is A Data Submitter For 11/16/2007 01/27/2011
97989 Person Darla Reams Is Onsite Manager For 08/07/2007 01/27/2011
377988 Person Walter Dabney Is A Data Submitter For 05/11/2007 10/21/2013
375159 Person Sarah DeMeo Is A Data Submitter For 04/24/2007 10/21/2013
73292 Person Larry Patterson Is Onsite Manager For 04/03/2006 10/21/2013
39800 Organization San Mateo City Owner City Agency 04/03/2006
Total Related Parties: 38
Expand/Contract Regulatory Measures
Regulatory Measures
Reg Measure ID Reg Measure Type Region Program Order No. WDID Effective Date Expiration Date Status Amended?
300189 Enrollee 2 SSOMUNILRG 2022-0103-DWQ 2SSO10183 12/14/2006 Active N
Total Reg Measures: 1
Expand/Contract Violations
Violations
Violation ID Occurred Date Violation Type (-) Violation Description Corrective Action Status Classification Source
1149811 12/02/2025 SSOS Type: Category 1 Spill; Other (specify below),Flow Exceeded Capacity (Separate Collection System Only) caused 200 gallons of sewage to spill from Manhole at 2051 S Norfolk to Surface Water,Street/Curb and Gutter (2 3) Other (specify below). Thoroughly vetted plant shutdown, minor spill from unforeseen surcharged portion of system Violation A SSO
1149809 11/25/2025 SSOS Type: Category 1 Spill; Debris-Rags,Collection System Maintenance Failure (specify below),Fats, Oil and Grease (FOG) caused 27000 gallons of sewage to spill from Manhole at 3418 Shasta Dr. San Mateo Ca. to Drainage Conveyance System that discharges to surface water Inspected Sewer Using CCTV to Determine Cause. Follow up jet to sewer main that caused overflow, cctv to investigate any left over roots or possible broken pipe. Violation A SSO
1149812 08/27/2025 SSOS Type: Category 1 Spill; Root Intrusion caused 3750 gallons of sewage to spill from Inside Building or Structure at 294 w 39th ave san mateo to Drainage Conveyance System,Drainage Conveyance System that discharges to surface water,Street/Curb and Gutter (2 3),Building or Structure,Paved Surface Post Spill CCTV. CCTV could not locate a definitive problem Violation A SSO
1149813 08/13/2025 SSOS Type: Category 1 Spill; Fats, Oil and Grease (FOG) caused 165 gallons of sewage to spill from Gravity Mainline at 831 W. Hillsdale Blvd to Drainage Conveyance System that discharges to surface water Inspected Sewer Using CCTV to Determine Cause. CCTV Violation A SSO
1142177 02/15/2025 SSOS Type: Category 1 Spill; Other (specify below) caused 613500 gallons of sewage to spill from Manhole at 3905 Kingridge Drive to Surface Water Adjusted Schedule/Method of Preventive Maintenance,Other (specify below),Inspected Sewer Using CCTV to Determine Cause. completed inspections of 6 manholes for condition, remainder of manholes to be completed within 30 days, photographs attached to inspection tasks yearly inspections of manholes added to inspections Violation B SSO
1141079 02/15/2025 SSOS Type: Category 1 Spill; Other (specify below) caused 684000 gallons of sewage to spill from Manhole at 3905 Kingridge Drive to Surface Water Inspected Sewer Using CCTV to Determine Cause,Adjusted Schedule/Method of Preventive Maintenance,Other (specify below). completed inspections of 6 manholes for condition, remainder of manholes to be completed within 30 days, photographs attached to inspection tasks yearly inspections of manholes added to inspections Violation B SSO
1140508 02/13/2025 SSOS Type: Category 1 Spill; Flow Exceeded Capacity (Separate Collection System Only) caused 270000 gallons of sewage to spill from Manhole at Saratoga UFES to Surface Water Other (specify below). The WWTP plans to adjust the Underground Flow Equalization System SOP depending on the rain event to Equalization System to avoid maxing out the storage system. Violation B SSO
1139833 01/30/2025 SSOS Type: Category 1 Spill; Other (specify below),Damage by Others Not Related to Collection System Construction/Maintenance caused 707 gallons of sewage to spill from Other (specify below) at Mariners Island 3 Force Main to Drainage Conveyance System that discharges to surface water Repaired Facilities or Replaced Defect. Current industry standard compression couplings were used to minimize future failure. Violation B SSO
1138589 12/31/2024 SSOS Type: Category 1 Spill; Fats, Oil and Grease (FOG) caused 3200 gallons of sewage to spill from Manhole,Gravity Mainline at S Norfolk st. and Lago st. to Drainage Conveyance System that discharges to surface water Post Spill CCTV,Adjusted Schedule/Method of Preventive Maintenance. At the time of the plug, the sewer main was hydro jetted to get the sewer flow going. Follow up consisted of follow up hydro jetting and CCTV. Violation B SSO
1138285 12/14/2024 SSOS Type: Category 1 Spill; Other (specify below) caused 19500 gallons of sewage to spill from Manhole at Saratoga between Delaware and UFES to Street/Curb and Gutter (2 3) Other (specify below). Met with treatment plant supervisor and engineering staff to confirm appropriate SCADA setting for isolation valve operation. Violation B SSO
1138282 12/14/2024 SSOS Type: Category 1 Spill; Other (specify below) caused 5400 gallons of sewage to spill from Manhole at Saratoga between Delaware and UFES to Street/Curb and Gutter (2 3) Other (specify below). Met with treatment plant supervisor and engineering staff to confirm appropriate SCADA setting. Violation B SSO
1133797 06/24/2024 SSOS Type: Category 1 Spill; Root Intrusion caused 1200 gallons of sewage to spill from Manhole at 931 Viewridge to Surface Water, Unpaved Surface Inspected Sewer Using CCTV to Determine Cause. 6/28, jetted entire easement, CCTV immediately after Violation B SSO
1149964 04/16/2024 SSOS Type: Category 1 Spill; Fats, Oil and Grease (FOG) caused 7300 gallons of sewage to spill from Lateral Clean Out (Private) at 312 Clark to Drainage Conveyance System that discharges to surface water,Paved Surface,Street/Curb and Gutter (2 3) Inspected Sewer Using CCTV to Determine Cause,Post Spill CCTV. CCTV to determine location and cause Violation A SSO
1133796 01/23/2024 SSOS Type: Category 1 Spill; Fats, Oil and Grease (FOG) caused 5300 gallons of sewage to spill from Manhole at 1630 Bayridge Way to Unpaved Surface Inspected Sewer Using CCTV to Determine Cause. CCTV and monitor Violation B SSO
1133795 01/22/2024 SSOS Type: Category 1 Spill; Debris-wipes/Non-disposables, Root Intrusion caused 1850 gallons of sewage to spill from Manhole at Bromfield and Chester way to Surface Water Inspected Sewer Using CCTV to Determine Cause. Root foamed in the last week, cleaning scheduled for 60-90 days after, CCTV again for any other defects Violation B SSO
1133794 12/20/2023 SSOS Type: Category 1 Spill; Other (specify below) caused 75600 gallons of sewage to spill from Gravity Mainline, Lateral Clean Out (Private), Manhole at Hillsdale and Saratoga to Drainage Conveyance System Other (specify below). Made notes to the sanitary conveyance system that the Santa Clara flow cannot be sent to Bay Meadows during a rain event to avoid overwhelming the pump station. Violation B SSO
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 16 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
SSOS = Sanitary Sewer Overflow/Spill/
Expand/Contract Enforcement Actions
Enforcement Actions
Enf Id Enf Type Enf Order No. Effective Date Status
433037 Staff Enforcement Letter null 07/17/2019 Active
421643 Notice of Violation 05/24/2018 Active
415772 Notice of Violation null 08/14/2017 Historical
409833 Notice of Violation null 10/14/2016 Historical
362423 Cease and Desist Order R2-2009-0020 03/11/2009 Active
362435 Admin Civil Liability R2-2009-0015 03/11/2009 Historical
352343 Admin Civil Liability R2-2008-0067 09/16/2008 Historical
362625 13267 Letter 12/01/2004 Historical
Total Enf Actions: 8
Expand/Contract Inspections
Inspections
Inspection ID Inspection Type Lead Inspector Actual End Date Planned Violations Attachment
36949754 B Type compliance inspection Habte T Kifle 03/12/2019 N 0 N/A
Total Inspections: 1 Last Inspection: 03/12/2019
  
The current report was generated with data as of: 12/23/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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