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General Information
Party ID Party Name Party Classification Mailing Address Work Phone Email/Website
39802 San Mateo County DPW County Agency 555 County Center 5th Floor Redwood City, CA 94063 650-599-7311(+) None
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
227352 Glenwood Boys Ranch WWTP San Mateo 2 Wastewater Treatment Facility Owner 06/17/1980 None
255417 San Mateo Co Honor Camp WWTP San Mateo 2 Wastewater Treatment Facility Owner 09/21/1983 None
229507 Half Moon Bay Landfill San Mateo 2 Land fill Owner 08/15/1978 None
248074 Pescadero Solid Waste Disposal Site San Mateo 2 Land fill Owner 07/12/1996 None
770958 Pescardero Creek Road Culvert maintenance San Mateo 2 Facility Owner 06/17/2013 None
832877 Maintenance Dredging Coyote Point Marina San Mateo 2 Dredge/Fill Site Owner 02/17/2017 None
858369 County of San Mateo Routine Maintenance Program Manual San Mateo 3 Dredge/Fill Site Owner 05/17/2019 None
827623 Alpine Road Drainage And Road Restoration Project San Mateo 2 Dredge/Fill Site Owner 08/30/2016 None
751768 Montara Culvert Replacement Project San Mateo 2 Dredge/Fill Site Owner 03/26/2012 None
768900 Gazos Creek Watershed Improvements San Mateo 3 Dredge/Fill Site Owner 07/25/2011 None
867486 Mirada Road Ped Brdg Replmnt and Bank Stabilization Project San Mateo 2 Dredge/Fill Site Owner 06/17/2020 None
855100 Columbia and Vassar Beach Access Improvement Project San Mateo 2 Dredge/Fill Site Owner 01/08/2019 None
834671 Sunshine Valley Road Culvert And Road Repair Project San Mateo 2 Dredge/Fill Site Owner 04/24/2017 None
832676 Emergency Gazos Creek Road Slip-Out Repair San Mateo 3 Dredge/Fill Site Owner 02/10/2017 None
900174 February 2025 Storm- Emergency Repairs San Mateo 2 Dredge/Fill Site Owner 03/07/2025 None
851142 Alpine Road at Pescadero Creek Road Culvert Replacement and Bank Stabilization San Mateo 2 Dredge/Fill Site Owner 09/20/2018 None
877867 Emergency slip-out repair on Alpine Road San Mateo 2 Dredge/Fill Site Owner 12/01/2021 None
903128 Entrada Way Culvert Slip-out Bank Stabilization Project San Mateo 2 Dredge/Fill Site Owner 10/08/2025 None
767900 Pigeon Point Road Maintenance Project San Mateo 3 Dredge/Fill Site Operator 06/28/2011 None
751757 San Gregorio Stage Road Slip-Out Repair Project San Mateo 2 Dredge/Fill Site Owner 03/26/2012 None
823225 Alpine Road Trail Improvements Project San Mateo 2 Dredge/Fill Site Owner 03/23/2016 None
839714 2017 Storm Season Emergency Repair Project San Mateo 2 Dredge/Fill Site Owner 09/07/2017 None
902979 Wurr Road, Pescadero Creek Road, And Cloverdale Road Culvert Repairs Project San Mateo 2 Dredge/Fill Site Owner 09/25/2025 None
872257 CZU Lightning Complex -- Gazos Creek Road Emergency Culvert Replacement San Mateo 3 Dredge/Fill Site Owner 02/16/2021 None
889891 Canada Road Emergency Road Slip-Out and Culvert Repair San Mateo 2 Dredge/Fill Site Owner 08/16/2023 None
900539 Wurr Road, Pescadero Creek Road, and Cloverdale Road Culvert Repair Project San Mateo 2 Dredge/Fill Site Owner 04/01/2025 None
879194 Emergency Slip-Out on Tunitas Creek Road- Mile 2.2 San Mateo 2 Dredge/Fill Site Owner 02/01/2022 None
828810 Belmont Creek Maintenance Dredging (2016) San Mateo 2 Dredge/Fill Site None None None
870969 San Carlos Airport Levee Emergency Repair Project San Mateo 2 Dredge/Fill Site Owner 12/15/2020 None
827302 Ramona Road Drainage Improvement Project San Mateo 2 Dredge/Fill Site Owner 08/16/2016 None
832403 Alpine Road Embankment Repair Project San Mateo 2 Dredge/Fill Site Owner 02/01/2017 None
855109 Emergency Debris Removal at Cloverdale Road San Mateo 2 Dredge/Fill Site Owner 01/08/2019 None
890880 Gazos Creek Road Emergency Road Repairs San Mateo 3 Dredge/Fill Site Owner 10/19/2023 None
893649 Lobitos Creek Emergency Debris Removal San Mateo 2 Dredge/Fill Site Owner 02/27/2024 None
858037 County of San Mateo Routine Maintenance Program Manual San Mateo 2 Dredge/Fill Site Owner 05/01/2019 None
892021 January 2023 Emergency Storm Repairs San Mateo 2 Dredge/Fill Site Owner 01/16/2024 None
839710 2017 Storm Season Emergency Repair Project- Entrada Way And Alipne Road Trail San Mateo 2 Dredge/Fill Site Owner 09/07/2017 None
823553 Mirada Road Emergency Slope Protection Project San Mateo 2 Dredge/Fill Site Owner 04/01/2016 None
857561 Pescadero Creek Road San Mateo 2 Dredge/Fill Site Owner 04/10/2019 None
878497 Tunitas Emergency Slip-out San Mateo 2 Dredge/Fill Site Owner 01/04/2022 None
898015 Slip-Out Repair And Bank Stabilization Near 1780 Higgins Canyon Road Project San Mateo 2 Dredge/Fill Site Owner 12/16/2024 None
751762 Recreation Drive Culvert Replacement Project San Mateo 2 Dredge/Fill Site None None None
864801 Emergency Culvert Clearing Polhemus Creek San Mateo 2 Dredge/Fill Site Owner 02/12/2020 None
833617 Emergency Road Repair #2 At Entrada Way San Mateo 2 Dredge/Fill Site Owner 03/10/2017 None
877563 Emergency Slip-Out Repair on Higgins Canyon Road San Mateo 2 Dredge/Fill Site Owner 11/15/2021 None
854318 2018 Cloverdale Rd Bridge Emergency Debris Removal San Mateo 2 Dredge/Fill Site Owner 12/13/2018 None
752081 County of San Mateo Sewer Maintenance SD CS San Mateo 2 Collection_System Owner 06/15/2010 None
752095 Scenic Heights CSD San Mateo 2 Collection_System Owner 06/15/2010 None
752092 Emerald Lake Heights SMD San Mateo 2 Collection_System Owner 06/15/2010 None
630821 San Mateo County CS San Luis Obispo 2 Collection_System Owner 04/03/2006 None
752094 Oak Knoll SMD (San Mateo County) San Mateo 2 Collection_System Owner 06/15/2010 None
735021 Tower Road Complex CS San Mateo 2 Collection_System Owner 03/16/2009 None
752082 Burlingame Hills SMD San Mateo 2 Collection_System Owner 06/15/2010 None
752089 Devonshire CSD San Mateo 2 Collection_System Owner 06/15/2010 None
752088 Crystal Springs CSD CS San Mateo 2 Collection_System Owner 06/15/2010 None
752093 Fair Oaks SMD San Mateo 2 Collection_System Owner 06/15/2010 None
Total Related Places: 56
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
519917 Mark Chow Person Legally Responsible Official 11/02/2009 None None
462533 Gary Behrens Person Legally Responsible Official 03/19/2008 None None
553608 Anna Mui Person Employee 11/05/2015 None None
620714 Aaron Francis Person Employee 12/15/2020 None None
651923 Martina Lin Person Data Submitter 11/14/2025 None None
568435 Krzysztof Lisaj Person Legally Responsible Official 02/16/2021 None None
555526 Julie Casagrande Person Legally Responsible Official 04/01/2016 None None
641056 Alan Velasquez Person Legally Responsible Official 08/16/2023 None None
556516 Leon Bruk Person Data Submitter 05/18/2016 None None
450656 Julie Young Person Data Submitter 12/14/2007 None None
558733 Joseph Lococo Person Legally Responsible Official 08/16/2016 None None
61168 Don Williams Person Board member 07/12/1996 None None
651257 Neli Avramova Person Legally Responsible Official 11/06/2025 None None
56479 Ann Stillman Person Legally Responsible Official 04/03/2006 None None
541177 Sam Herzberg Person Legally Responsible Official 02/17/2017 None None
540379 Edelzar Garcia Person Legally Responsible Official 06/13/2013 None None
651923 Martina Lin Person Data Submitter 07/29/2025 None None
555405 James Porter Person Legally Responsible Official 03/23/2016 None None
520372 America Sanchez Person Data Submitter 11/02/2009 None None
629094 Khoa Vo Person Legally Responsible Official 11/15/2021 None None
596142 Amanda Tse Person Data Submitter 03/27/2019 04/18/2023 None
538700 Kristen Lau Person Data Submitter 02/13/2013 02/08/2021 None
374226 Norman Merrill Person Data Submitter 04/17/2007 05/26/2016 None
374226 Norman Merrill Person Data Submitter 05/08/2007 05/26/2016 None
Total Related Parties: 24
  
  
  
  
Expand/Contract Regulatory Measures
Regulatory Measures (non-enforcement)
Reg. Measure ID Regulatory Measure Type Region WDID Status Program Order No. RM Effective Date RM Termination Date Relationship Relationship Start Date Relationship End Date Amended?
142175 WDR 2 2 417042001 Active WDRMUNIOTH 88-140 09/21/1988 None Discharger 09/21/1988 None N
145607 WDR 2 2 417059001 Historical WDRMUNIOTH 83-034 09/21/1983 09/21/1988 Discharger 09/21/1983 None N
374012 Enrollee 2 2SSO10226 Active SSOMUNISML 2022-0103-DWQ 03/23/2010 None Discharger 06/15/2010 None N
383754 401 Certification 3 None Historical CERFILLEXC None 05/08/2012 05/07/2017 Discharger 03/14/2012 None N
383952 401 Certification 2 None Historical CERFILLEXC None 05/18/2010 05/18/2015 Discharger 03/26/2012 None N
391591 401 Certification 2 None Historical CERREST None 10/25/2012 10/25/2017 Discharger 06/25/2013 None N
405314 401 Certification 2 2 CW405314 Active CERFILLEXC None 09/30/2016 None Discharger 03/23/2016 None N
142197 WDR 2 2 417059001 Active WDRMUNIOTH 88-141 09/21/1988 None Discharger 09/21/1988 None N
143125 WDR 2 2 417076001 Active LFNONOPER 97-048 04/16/1997 None Discharger 04/16/1997 None N
374013 Enrollee 2 2SSO10227 Active SSOMUNISML 2022-0103-DWQ 03/23/2010 None Discharger 06/15/2010 None N
411776 401 Certification 3 34117WQ01 Historical CERFILLEXC None 05/01/2018 06/09/2022 Discharger 02/10/2017 None N
411884 401 Certification 2 2 CW411884 Historical CERDREDGE None 06/01/2017 01/22/2018 Discharger 02/17/2017 None N
299870 Enrollee 2 2SSO10122 Historical SSOMUNILRG 2006-0003-DWQ 11/27/2006 06/30/2009 Discharger 04/10/2006 None N
380461 401 Certification 3 34409WQ12 Historical CERFILLEXC None 08/17/2009 08/17/2014 Discharger 07/25/2011 None N
390569 Enrollee - 401 Certification 2 None Historical CERMINING 2004-0004-DWQ 06/07/2011 06/05/2016 Discharger 06/07/2013 None N
430262 401 Certification 2 2 CW430262 Active CERFILLEXC R2-2021-0005 07/12/2021 None Discharger 05/01/2019 None N
374011 Enrollee 2 2SSO10225 Active SSOMUNISML 2022-0103-DWQ 03/23/2010 None Discharger 06/15/2010 None N
374014 Enrollee 2 2SSO10228 Active SSOMUNILRG 2022-0103-DWQ 03/23/2010 None Discharger 06/15/2010 None N
374015 Enrollee 2 2SSO10229 Active SSOMUNISML 2022-0103-DWQ 03/23/2010 None Discharger 06/15/2010 None N
459436 401 Certification 2 2 CW459436 Active CERFILLEXC None 05/30/2025 None Discharger 12/16/2024 None N
362546 Enrollee 2 2SSO11539 Active SSOMUNISML 2022-0103-DWQ 03/16/2009 None Discharger 03/16/2009 None N
374008 Enrollee 2 2SSO10223 Historical SSOMUNISML 2006-0003-DWQ 10/20/2006 06/04/2023 Discharger 06/15/2010 None N
375780 401 Certification 2 None Historical CERFILLEXC None 05/18/2010 05/18/2015 Discharger 05/18/2010 None N
391260 Enrollee - 401 Certification 2 None Historical CERFILLEXC 2004-0004-DWQ 09/23/2011 09/21/2016 Discharger 06/17/2013 None N
391439 401 Certification 2 None Historical CERFILLEXC None 05/04/2011 05/02/2016 Discharger 06/21/2013 None N
409586 401 Certification 2 2 CW409586 Active CERFILLEXC None 08/31/2017 None Discharger 09/21/2017 None N
430585 401 Certification 3 34119WQ01 Active CERFILLEXC None 11/17/2020 None Discharger 05/17/2019 None N
374010 Enrollee 2 2SSO10224 Active SSOMUNISML 2022-0103-DWQ 04/30/2010 None Discharger 06/15/2010 None N
460285 Enrollee - WDR 2 2 CW460285 Historical CERFILLEXC 2023-0058-DWQ 04/22/2025 04/23/2025 Discharger 03/07/2025 None N
455959 Enrollee - 401 Certification 2 2 CW455959 Historical CERFILLEXC 2023-0058-DWQ None 05/08/2024 Discharger 02/27/2024 None N
438735 401 Certification 2 2 CW438735 Historical CERFILLEXC None 03/25/2021 01/29/2025 Discharger 06/17/2020 None N
143051 WDR 2 2 417077001 Historical LNDISP 96-153 11/20/1996 12/13/2006 Discharger 11/20/1996 None N
145186 WDR 2 2 417076001 Historical LNDISP 78-065 08/15/1978 04/16/1997 Discharger 08/15/1978 None N
146245 WDR 2 2 417077001 Historical LNDISP 73-042 04/15/1973 None Discharger 04/15/1973 None N
316748 WDR 2 2 417077001 Active LFNONOPER R2-2006-0083 12/13/2006 None Discharger 11/20/1996 None N
379956 401 Certification 3 None Historical CERFILLEXC None 04/27/2011 04/25/2016 Discharger 02/22/2011 None N
383953 401 Certification 2 None Historical CERFILLEXC None 05/18/2010 05/18/2015 Discharger 03/26/2012 None N
411674 401 Certification 2 2 CW411674 Historical CERFILLEXC None 03/26/2019 01/08/2025 Discharger 02/01/2017 None N
454780 Enrollee - WDR 3 34123WQ02 Historical CERFILLEXC 2023-0058-DWQ 11/13/2023 11/20/2023 Discharger 10/19/2023 None N
374019 Enrollee 2 2SSO10230 Active SSOMUNISML 2022-0103-DWQ 03/23/2010 None Discharger 06/15/2010 None N
391134 401 Certification 2 None Historical CERFILLEXC None 07/12/2012 07/12/2017 Discharger 06/13/2013 None N
428191 401 Certification 2 2 CW428191 Historical CERFILLEXC None 01/08/2020 09/01/2021 Discharger 01/08/2019 None N
442227 Enrollee - 401 Certification 3 34121WQ01 Historical CERFILLEXC 2019-0044-EXEC 10/01/2020 04/13/2021 Discharger 02/16/2021 None N
145251 WDR 2 2 417042001 Historical WDRMUNIOTH 80-031 06/17/1980 09/21/1988 Discharger 06/17/1980 None N
Total Regulatory Measures: 44
  
  
  
  
Expand/Contract Violations
Violations within the past year
Violation ID Occurrence Date Violation Type Violation Description(-) Violation Status Priority Source Facility Name Violated Reg. Meas. ID Violated Reg. Meas. Order No. Linked to Enf.
1143711 05/14/2025 Sanitary Sewer Overflow/Spill/ Type: Category 1 Spill; Other (specify below),Fats, Oil and Grease (FOG) caused 4575 gallons of sewage to spill from Manhole at 3454 Rolison Rd to Drainage Conveyance System that discharges to surface water,Paved Surface,Street/Curb and Gutter (2 3) Violation None SSO Fair Oaks SMD 374014 2022-0103-DWQ N
1140721 02/13/2025 Sanitary Sewer Overflow/Spill/ Type: Category 1 Spill; Other (specify below) caused 1550 gallons of sewage to spill from Manhole at 3001 Hoover Street to Street/Curb and Gutter (2 3),Drainage Conveyance System that discharges to surface water,Paved Surface Violation None SSO Fair Oaks SMD 374014 2022-0103-DWQ N
1140739 02/13/2025 Sanitary Sewer Overflow/Spill/ Type: Category 1 Spill; Other (specify below) caused 4025 gallons of sewage to spill from Manhole at 1081 8th Avenue to Paved Surface,Drainage Conveyance System that discharges to surface water,Street/Curb and Gutter (2 3) Violation None SSO Fair Oaks SMD 374014 2022-0103-DWQ N
Report defaults to display violations within the last year. Click here to see last five years of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 3
*Click the "(+/-) Violation Description" link to expand and contract the violation description.
  
  
  
  
Expand/Contract Enforcement Actions
Enforcement Actions
Enforcement ID Enforcement Type Enf. Order No. Title Program Effective Date Status
443718 Staff Enforcement Letter None SEL for San Mateo County DPW SSOMUNISML 07/01/2021 Active
412577 Notice of Violation None NOV 01/12/2017 for San Mateo County DPW SSOMUNISML 01/12/2017 Historical
409840 Notice of Violation None NOV 10/14/2016 for San Mateo County DPW SSOMUNISML 10/14/2016 Historical
401567 Oral Communication None Oral Com 04/01/2015 for San Mateo County WDRMUNIOTH 04/01/2015 Historical
362542 Admin Civil Liability R2-2009-0013 ACLO No. R2-2009-0013 SSOMUNILRG 03/11/2009 Historical
362423 Cease and Desist Order R2-2009-0020 Cease and Desist Order (CDO) R2-2009-0020 NPDMUNILRG 03/11/2009 Active
246180 Notice of Violation UNKNOWN Enforcement - 2 417077001 LNDISP 11/01/2002 Historical
238839 Staff Enforcement Letter UNKNOWN Enforcement - 2 41AGT414U AGT 11/06/2001 Historical
238840 Oral Communication UNKNOWN Enforcement - 2 41AGT414U AGT 11/05/2001 Historical
224694 13267 Letter UNKNOWN Enforcement - 2 417077001 LNDISP 07/01/1999 Historical
224954 Oral Communication UNKNOWN Enforcement - 2 417077001 LNDISP 07/01/1999 Historical
Total Enforcement Actions: 11
  
  
  
  
Expand/Contract Enforcement Actions
Regulatory Measures linked to Related Parties
Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status
Total Regulatory Measures linked to Related Parties: 0
  
  
The current report was generated with data as of: 11/26/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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