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California Integrated Water Quality System Project (CIWQS)
   Party At-A-Glance Report

  
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General Information
Party ID Party Name Party Classification Mailing Address Work Phone Email/Website
635140 Moses Tsang 510-670-6549 moses@acpwa.org
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
Total Related Places: 0
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
11753 Alameda Cnty Public Works Agency Organization Legally Responsible Official 02/16/2024 None County Agency
305950 Alameda County Flood Control & Water Conservation District (for 401 WQC's) Organization Legally Responsible Official 09/07/2022 None County Agency
Total Related Parties: 2
  
  
  
  
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?
Total Regulatory Measures: 0
  
  
  
  
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.
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: 0
*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
Total Enforcement Actions: 0
  
  
  
  
Expand/Contract Enforcement Actions
Regulatory Measures linked to Related Parties
Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status
395565 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 04/21/2014 Historical
410537 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 04/23/2018 Active
449136 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 02/24/2023 Active
460069 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 07/23/2025 Active
391796 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERREST 05/09/2013 Active
421410 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 07/27/2018 Active
415989 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 03/22/2018 Active
460519 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 07/29/2025 Active
391509 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERREST 04/05/2013 Historical
409793 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 06/05/2018 Active
419025 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 04/02/2019 Historical
429575 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 01/08/2021 Active
459022 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 03/05/2025 Active
394658 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 08/21/2014 Historical
394660 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 04/04/2014 Historical
394936 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 08/02/2017 Active
414153 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 04/02/2019 Active
459650 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERREST 06/12/2025 Active
425348 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 02/26/2019 Active
453891 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 09/11/2023 Active
459873 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 09/22/2025 Active
393020 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 05/30/2014 Historical
449142 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 02/24/2023 Active
450632 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 05/03/2023 Active
395564 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 04/21/2014 Historical
412054 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 05/02/2018 Active
455646 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 02/22/2024 Active
460463 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 09/05/2025 Active
451296 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 04/17/2023 Active
450710 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 03/28/2023 Active
395556 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 03/23/2016 Active
401415 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 07/06/2016 Historical
452442 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 06/09/2023 Active
456279 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 06/12/2024 Active
460817 Alameda County Flood Control & Water Conservation District (for 401 WQC's) 401 Certification CERFILLEXC 08/04/2025 Active
378206 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 06/26/2009 Historical
378472 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 07/09/2009 Historical
382070 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 06/26/2009 Historical
390539 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 08/03/2011 Historical
391654 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 05/18/2012 Historical
381244 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 01/29/2010 Historical
399309 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 03/20/2015 Historical
390989 Alameda Cnty Public Works Agency 401 Certification CERMIT 08/09/2011 Historical
391103 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 05/11/2011 Historical
391656 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 05/08/2012 Historical
398595 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 03/02/2016 Active
459861 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 05/21/2025 Active
171568 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC None Historical
386328 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 09/03/2010 Historical
390545 Alameda Cnty Public Works Agency 401 Certification CERDREDGE 09/23/2010 Historical
397070 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 06/27/2014 Historical
386326 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 12/17/2010 Historical
394468 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 03/08/2016 Historical
427766 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 02/28/2019 Historical
377871 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 04/28/2009 Historical
391643 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 04/25/2013 Historical
397592 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 10/07/2014 Historical
377875 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 04/21/2009 Historical
378516 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 06/18/2009 Historical
380315 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 04/08/2009 Historical
384011 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 06/01/2010 Historical
390990 Alameda Cnty Public Works Agency 401 Certification CERMIT 07/15/2011 Historical
393566 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 10/09/2013 Historical
399201 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 01/06/2016 Historical
377961 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 03/10/2009 Historical
382071 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 05/11/2009 Historical
385803 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 06/28/2010 Historical
390574 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC 09/30/2011 Historical
171565 Alameda Cnty Public Works Agency 401 Certification CERFILLEXC None Historical
395305 Alameda Cnty Public Works Agency Enrollee NPDNONMUNIPRCS 03/07/2014 Active
456286 Alameda Cnty Public Works Agency Enrollee - 401 Certification CERFILLEXC 06/20/2024 Active
429658 Alameda County Flood Control & Water Conservation District (for 401 WQC's) Enrollee - 401 Certification CERFILLEXC 02/22/2022 Active
458113 Alameda County Flood Control & Water Conservation District (for 401 WQC's) Enrollee - 401 Certification CERFILLEXC 09/12/2024 Historical
420816 Alameda County Flood Control & Water Conservation District (for 401 WQC's) Enrollee - 401 Certification CERFILLEXC 11/09/2018 Historical
451024 Alameda County Flood Control & Water Conservation District (for 401 WQC's) Enrollee - 401 Certification CERFILLEXC 04/17/2023 Historical
447729 Alameda Cnty Public Works Agency Enrollee - 401 Certification CERFILLEXC 10/07/2022 Active
412407 Alameda Cnty Public Works Agency Enrollee - 401 Certification CERFILLEXC 04/20/2017 Historical
180005 Alameda Cnty Public Works Agency Enrollee - 401 Certification CERFILLEXC 05/01/2001 Historical
440568 Alameda Cnty Public Works Agency Enrollee - 401 Certification CERFILLEXC 01/25/2021 Historical
455857 Alameda Cnty Public Works Agency Enrollee - 401 Certification CERFILLEXC 03/26/2024 Active
447494 Alameda Cnty Public Works Agency Enrollee - 401 Certification CERFILLEXC 09/15/2022 Active
450964 Alameda Cnty Public Works Agency Enrollee - 401 Certification CERFILLEXC 02/22/2023 Active
444779 Alameda Cnty Public Works Agency Enrollee - 401 Certification CERFILLEXC 09/15/2021 Active
456077 Alameda Cnty Public Works Agency Enrollee - 401 Certification CERFILLEXC 04/29/2024 Active
450987 Alameda Cnty Public Works Agency Enrollee - 401 Certification CERFILLEXC 03/10/2023 Active
422098 Alameda Cnty Public Works Agency Enrollee - WDR SSOMUNISML 05/01/2018 Active
457763 Alameda County Flood Control & Water Conservation District (for 401 WQC's) Enrollee - WDR CERFILLEXC 09/26/2024 Active
461353 Alameda County Flood Control & Water Conservation District (for 401 WQC's) Enrollee - WDR CERFILLEXC 07/24/2025 Active
142265 Alameda Cnty Public Works Agency WDR CERDREDGE 06/17/1998 Historical
Total Regulatory Measures linked to Related Parties: 89
  
  
The current report was generated with data as of: 10/24/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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