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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
374226 Norman Merrill Person Data Submitter 05/08/2007 05/26/2016 None
450656 Julie Young Person Data Submitter 12/14/2007 None None
558733 Joseph Lococo Person Legally Responsible Official 08/16/2016 None None
538700 Kristen Lau Person Data Submitter 02/13/2013 02/08/2021 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
596142 Amanda Tse Person Data Submitter 03/27/2019 04/18/2023 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
556516 Leon Bruk Person Data Submitter 05/18/2016 None None
641056 Alan Velasquez Person Legally Responsible Official 08/16/2023 None None
374226 Norman Merrill Person Data Submitter 04/17/2007 05/26/2016 None
555526 Julie Casagrande Person Legally Responsible Official 04/01/2016 None None
568435 Krzysztof Lisaj Person Legally Responsible Official 02/16/2021 None 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?
391134 401 Certification 2 None Historical CERFILLEXC None 07/12/2012 07/12/2017 Discharger 06/13/2013 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
390569 Enrollee - 401 Certification 2 None Historical CERMINING 2004-0004-DWQ 06/07/2011 06/05/2016 Discharger 06/07/2013 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
391591 401 Certification 2 None Historical CERREST None 10/25/2012 10/25/2017 Discharger 06/25/2013 None N
383952 401 Certification 2 None Historical CERFILLEXC None 05/18/2010 05/18/2015 Discharger 03/26/2012 None N
383754 401 Certification 3 None Historical CERFILLEXC None 05/08/2012 05/07/2017 Discharger 03/14/2012 None N
375780 401 Certification 2 None Historical CERFILLEXC None 05/18/2010 05/18/2015 Discharger 05/18/2010 None N
380461 401 Certification 3 34409WQ12 Historical CERFILLEXC None 08/17/2009 08/17/2014 Discharger 07/25/2011 None N
454780 Enrollee - WDR 3 34123WQ02 Historical CERFILLEXC 2023-0058-DWQ 11/13/2023 11/20/2023 Discharger 10/19/2023 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
430585 401 Certification 3 34119WQ01 Active CERFILLEXC None 11/17/2020 None Discharger 05/17/2019 None N
411776 401 Certification 3 34117WQ01 Historical CERFILLEXC None 05/01/2018 06/09/2022 Discharger 02/10/2017 None N
362546 Enrollee 2 2SSO11539 Active SSOMUNISML 2022-0103-DWQ 03/16/2009 None Discharger 03/16/2009 None N
374019 Enrollee 2 2SSO10230 Active SSOMUNISML 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
374014 Enrollee 2 2SSO10228 Active SSOMUNILRG 2022-0103-DWQ 03/23/2010 None Discharger 06/15/2010 None N
374013 Enrollee 2 2SSO10227 Active SSOMUNISML 2022-0103-DWQ 03/23/2010 None Discharger 06/15/2010 None N
374012 Enrollee 2 2SSO10226 Active SSOMUNISML 2022-0103-DWQ 03/23/2010 None Discharger 06/15/2010 None N
374011 Enrollee 2 2SSO10225 Active SSOMUNISML 2022-0103-DWQ 03/23/2010 None Discharger 06/15/2010 None N
374010 Enrollee 2 2SSO10224 Active SSOMUNISML 2022-0103-DWQ 04/30/2010 None Discharger 06/15/2010 None N
374008 Enrollee 2 2SSO10223 Historical SSOMUNISML 2006-0003-DWQ 10/20/2006 06/04/2023 Discharger 06/15/2010 None N
299870 Enrollee 2 2SSO10122 Historical SSOMUNILRG 2006-0003-DWQ 11/27/2006 06/30/2009 Discharger 04/10/2006 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
459436 401 Certification 2 2 CW459436 Active CERFILLEXC None 05/30/2025 None Discharger 12/16/2024 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
430262 401 Certification 2 2 CW430262 Active CERFILLEXC R2-2021-0005 07/12/2021 None Discharger 05/01/2019 None N
428191 401 Certification 2 2 CW428191 Historical CERFILLEXC None 01/08/2020 09/01/2021 Discharger 01/08/2019 None N
411884 401 Certification 2 2 CW411884 Historical CERDREDGE None 06/01/2017 01/22/2018 Discharger 02/17/2017 None N
411674 401 Certification 2 2 CW411674 Historical CERFILLEXC None 03/26/2019 01/08/2025 Discharger 02/01/2017 None N
409586 401 Certification 2 2 CW409586 Active CERFILLEXC None 08/31/2017 None Discharger 09/21/2017 None N
405314 401 Certification 2 2 CW405314 Active CERFILLEXC None 09/30/2016 None Discharger 03/23/2016 None N
316748 WDR 2 2 417077001 Active LFNONOPER R2-2006-0083 12/13/2006 None Discharger 11/20/1996 None N
143051 WDR 2 2 417077001 Historical LNDISP 96-153 11/20/1996 12/13/2006 Discharger 11/20/1996 None N
146245 WDR 2 2 417077001 Historical LNDISP 73-042 04/15/1973 None Discharger 04/15/1973 None N
145186 WDR 2 2 417076001 Historical LNDISP 78-065 08/15/1978 04/16/1997 Discharger 08/15/1978 None N
143125 WDR 2 2 417076001 Active LFNONOPER 97-048 04/16/1997 None Discharger 04/16/1997 None N
142197 WDR 2 2 417059001 Active WDRMUNIOTH 88-141 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
145251 WDR 2 2 417042001 Historical WDRMUNIOTH 80-031 06/17/1980 09/21/1988 Discharger 06/17/1980 None N
142175 WDR 2 2 417042001 Active WDRMUNIOTH 88-140 09/21/1988 None Discharger 09/21/1988 None N
Total Regulatory Measures: 44
  
  
  
  
Expand/Contract Violations
Violations within the past five years
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.
1090962 06/09/2021 Order Conditions SSMP needs to be updated Violation N Inspection Tower Road Complex CS 362546 2022-0103-DWQ Y
1133478 05/22/2024 Sanitary Sewer Overflow/Spill/ Type: Category 1 Spill; Debris-wipes/Non-disposables, Fats, Oil and Grease (FOG) caused 1018 gallons of sewage to spill from Gravity Mainline at 1855 Woodside Road 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
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
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
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
1133473 12/05/2023 Sanitary Sewer Overflow/Spill/ Type: Category 1 Spill; Damage by Others Not Related to Collection System Construction/Maintenance caused 1071 gallons of sewage to spill from Inside Building or Structure at 135 Valdeflores Dr (BHSMD) to Building or Structure, Drainage Conveyance System that discharges to surface water, Paved Surface, Surface Water, Unpaved Surface Violation None SSO Burlingame Hills SMD 374010 2022-0103-DWQ N
1133474 07/11/2024 Sanitary Sewer Overflow/Spill/ Type: Category 1 Spill; Other (specify below), Root Intrusion caused 1043 gallons of sewage to spill from Manhole at 1479 Ascension Drive (CSCSD) to Drainage Conveyance System that discharges to surface water, Street/Curb and Gutter (2 3), Surface Water Violation None SSO Crystal Springs CSD CS 374011 2022-0103-DWQ N
1133475 10/23/2023 Sanitary Sewer Overflow/Spill/ Type: Category 1 Spill; Root Intrusion caused 487 gallons of sewage to spill from Lateral Clean Out (Private) at 1040 High Road to Drainage Conveyance System, Surface Water, Unpaved Surface Violation None SSO Fair Oaks SMD 374014 2022-0103-DWQ N
1133476 12/30/2023 Sanitary Sewer Overflow/Spill/ Type: Category 1 Spill; Debris-General, Fats, Oil and Grease (FOG) caused 16990 gallons of sewage to spill from Manhole at 841 Warrington Avenue 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
1133472 12/08/2023 Sanitary Sewer Overflow/Spill/ Type: Category 1 Spill; Root Intrusion caused 376 gallons of sewage to spill from Gravity Mainline, Lateral Clean Out (Private) at 142 Valdeflores Drive (BHSMD) to Drainage Conveyance System that discharges to surface water, Paved Surface, Surface Water, Unpaved Surface Violation None SSO Burlingame Hills SMD 374010 2022-0103-DWQ N
Report currently showing last five years of violations. Click here to return to viewing one year of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 10
*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: 11/28/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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