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   Party At-A-Glance Report

  
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General Information
Party ID Party Name Party Classification Mailing Address Work Phone Email/Website
12924 Town of Discovery Bay CSD Special District 1800 Willow Lake Road Discovery Bay, CA 94505 925-634-1131 mdavies@todb.ca.gov
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
841343 Discovery Bay Community Services District WS Contra Costa 5S Utility Structure Owner and Operator 11/03/2017 None
630692 Discovery Bay CS Contra Costa 5S Collection_System Owner 04/03/2006 None
262998 TDBCSD Outfall Diffuser Proj Contra Costa 5S Dredge/Fill Site Owner 06/17/2005 None
867779 Wastewater Effluent Diffuser Rehabilition Project Contra Costa 5S Dredge/Fill Site Owner 07/06/2020 None
220315 Discovery Bay WWTP Contra Costa 5S Wastewater Treatment Facility Owner 01/21/2009 None
Total Related Places: 5
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
529913 Willie Sadler Person Legally Responsible Official 11/01/2011 10/16/2013 None
87630 Virgil Koehne Person Owner Contact 01/21/2009 None None
87630 Virgil Koehne Person Legally Responsible Official 04/03/2006 09/13/2022 None
87630 Virgil Koehne Person Facility Contact 11/19/1998 None None
545655 Scott Biocic Person Legally Responsible Official 05/29/2014 01/18/2017 None
547286 Rick Howard Person Legally Responsible Official 06/06/2014 None None
520214 Patrick Swaggerty Person Legally Responsible Official 10/14/2009 10/28/2011 None
602880 Michael Davies Person Legally Responsible Official 09/30/2019 None None
529912 Lori Gabriel Person Data Submitter 01/03/2012 10/16/2013 None
621385 kulwinder singh Person Legally Responsible Official 03/20/2024 05/07/2025 None
609782 Jeffery Dobretz Person Legally Responsible Official 06/12/2020 None None
619687 Gerry Lemus Person Legally Responsible Official 11/02/2020 09/12/2022 None
520216 Gerald Smart Person Legally Responsible Official 10/14/2009 02/13/2012 None
300358 Frank Chernicki Person Data Submitter 09/17/2007 12/09/2013 None
520752 Fermin Garcia Person Legally Responsible Official 02/01/2013 09/01/2015 None
635335 Dina Breitstein Person Legally Responsible Official 11/02/2022 None None
524825 Devon Morris Person Data Submitter 01/23/2017 08/22/2018 None
546473 Bernie Sadler Person Legally Responsible Official 05/14/2014 09/13/2022 None
609783 Arlee Hill Person Legally Responsible Official 06/16/2020 09/13/2022 None
628554 Anthony Harper Person Legally Responsible Official 01/11/2023 None None
628554 Anthony Harper Person Data Submitter 09/20/2022 01/11/2023 None
610759 Aaron Goldsworthy Person Legally Responsible Official 07/06/2020 None None
Total Related Parties: 22
  
  
  
  
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?
438984 401 Certification 5S 5B07CR00225 Active CERFILLEXC None 10/06/2020 None Discharger 07/06/2020 None N
459449 NPDES Permit 5S 5B070105003 Active NPDMUNILRG R5-2024-0068 02/01/2025 None Discharger 12/13/2024 None N
436159 NPDES Permit 5S 5B070105003 Historical NPDMUNILRG R5-2019-0082 02/01/2020 01/31/2025 Discharger 01/02/2020 None N
396976 NPDES Permit 5S 5B070105003 Historical NPDMUNILRG R5-2014-0073 08/01/2014 01/31/2020 Discharger 06/06/2014 None Y
359906 NPDES Permit 5S 5B070105003 Historical NPDMUNILRG R5-2008-0179 01/23/2009 07/31/2014 Discharger 01/21/2009 None Y
132370 NPDES Permit 5S 5B070105003 Historical NPDMUNILRG R5-2003-0067 04/25/2003 01/22/2009 Discharger 04/25/2003 None N
259758 Letter 5S 5B070105003 Historical NPDESWW LT980820 08/20/1998 08/20/1998 Discharger 08/20/1998 None N
147122 NPDES Permit 5S 5B070105003 Historical NPDMUNILRG 99-096 06/11/1999 04/24/2003 Discharger 06/11/1999 None N
146898 NPDES Permit 5S 5B070105003 Historical NPDMUNILRG 97-240 12/05/1997 06/10/1999 Discharger 12/05/1997 None N
141730 NPDES Permit 5S 5B070105003 Historical NPDMUNILRG 94-127 05/20/1994 12/04/1997 Discharger 05/20/1994 None N
140659 NPDES Permit 5S 5B070105003 Historical NPDMUNILRG 89-104 06/23/1989 05/19/1994 Discharger 06/23/1989 None N
140323 NPDES Permit 5S 5B070105003 Historical NPDMUNILRG 88-161 09/23/1988 06/22/1989 Discharger 09/23/1988 None N
139519 NPDES Permit 5S 5B070105003 Historical NPDMUNILRG 81-037 03/27/1981 09/22/1988 Discharger 03/27/1981 None N
301412 Enrollee - WDR 5S 5SSO10929 Active SSOMUNISML 2022-0103-DWQ 10/25/2006 None Discharger 04/20/2006 None N
440453 Co-Permitee SB 5B070105003 Active SLIC 2020-0015-DWQ 07/09/2020 None Discharger 09/18/2020 None N
416932 Enrollee - NPDES 5S 4DW0088 Active NPDNONMUNIPRCS 2014-0194-DWQ 07/01/2016 None Discharger 11/03/2017 None N
Total Regulatory Measures: 16
  
  
  
  
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.
1147220 08/19/2025 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4 MPN Violation N eSMR Discovery Bay WWTP 459449 R5-2024-0068 N
1146299 07/23/2025 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 13 MP Violation N eSMR Discovery Bay WWTP 459449 R5-2024-0068 N
1146302 07/28/2025 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 10.5 Violation N eSMR Discovery Bay WWTP 459449 R5-2024-0068 N
1146301 07/24/2025 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 10.5 Violation N eSMR Discovery Bay WWTP 459449 R5-2024-0068 N
1148376 09/23/2025 OEV Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 350 Violation N eSMR Discovery Bay WWTP 459449 R5-2024-0068 N
1146303 07/15/2025 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 11 MP Violation N eSMR Discovery Bay WWTP 459449 R5-2024-0068 N
1146300 07/29/2025 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 5 MPN Violation N eSMR Discovery Bay WWTP 459449 R5-2024-0068 N
1146298 07/14/2025 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 11 MP Violation N eSMR Discovery Bay WWTP 459449 R5-2024-0068 N
1147219 08/18/2025 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4 MPN Violation N eSMR Discovery Bay WWTP 459449 R5-2024-0068 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: 9
*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
459240 Notice of Violation None NOV 11/22/2024 for Town of Discovery Bay CSD NPDMUNILRG 11/22/2024 Historical
457543 Admin Civil Liability R5-2024-0515 ACL R5-2024-0515 for Town of Discovery Bay CSD NPDMUNILRG 09/24/2024 Historical
455670 Notice of Violation None NOV 01/26/2024 for Town of Discovery Bay CSD NPDMUNILRG 01/26/2024 Historical
453602 Notice of Violation None NOV 07/21/2023 for Town of Discovery Bay CSD NPDMUNILRG 07/21/2023 Historical
443869 Expedited Payment Letter R5-2021-0515 EPL R5-2021-0515 for Town of Discovery Bay CSD NPDMUNILRG 06/23/2021 Active
440972 Notice of Violation None NOV 08/13/2020 for Town of Discovery Bay CSD NPDMUNILRG 08/13/2020 Historical
428930 Notice of Violation None NOV 02/19/2019 for Town of Discovery Bay CSD NPDMUNILRG 02/19/2019 Historical
425652 Admin Civil Liability R5-2018-0521 ACL R5-2018-0521 for Town of Discovery Bay CSD NPDMUNILRG 10/11/2018 Historical
425077 Notice of Violation None NOV 09/05/2018 for Town of Discovery Bay CSD NPDMUNILRG 09/05/2018 Historical
419678 Notice of Violation None NOV 02/22/2018 for Town of Discovery Bay CSD NPDMUNILRG 02/22/2018 Historical
397195 Admin Civil Liability R5-2014-0542 ACL R5-2014-0542 for Town of Discovery Bay CSD NPDMUNILRG 11/02/2016 Historical
409039 Notice of Violation None NOV 08/31/2016 for Town of Discovery Bay CSD NPDMUNILRG 08/31/2016 Historical
407570 Notice of Violation None NOV 07/05/2016 for Town of Discovery Bay CSD NPDMUNILRG 07/05/2016 Historical
404171 Notice of Violation None NOV 12/31/2015 for Town of Discovery Bay CSD NPDMUNILRG 12/31/2015 Historical
397891 Notice of Violation None NOV 08/28/2014 for Town of Discovery Bay CSD WDR 08/28/2014 Historical
396766 Notice of Violation None NOV 06/12/2014 for Town of Discovery Bay CSD, Discovery Bay CS SSOMUNISML 06/12/2014 Historical
396372 Notice of Violation None NOV 05/21/2014 for Town of Discovery Bay CSD NPDMUNILRG 05/21/2014 Historical
394430 Notice of Violation None NOV 12/16/2013 for Town of Discovery Bay CSD NPDMUNILRG 12/16/2013 Historical
395900 Notice of Violation None NOV 10/15/2013 for Town of Discovery Bay CSD NPDMUNILRG 10/15/2013 Historical
390034 Admin Civil Liability R5-2013-0581 ACL R5-2013-0581 for Town of Discovery Bay CSD NPDMUNILRG 09/13/2013 Historical
391282 Notice of Violation None NOV 06/12/2013 for Town of Discovery Bay CSD WWTP NPDMUNILRG 06/12/2013 Historical
390002 Notice of Violation None NOV 04/23/2013 for Town of Discovery Bay CSD WWTP NPDMUNILRG 04/23/2013 Historical
388987 Notice of Violation None NOV 02/04/2013 for Town of Discovery Bay CSD WWTP NPDMUNILRG 02/04/2013 Historical
387744 Notice of Violation None NOV 10/12/2012 for Town of Discovery Bay CSD WWTP NPDMUNILRG 10/12/2012 Historical
387604 Notice of Violation None NOV 09/20/2012 for Town of Discovery Bay CSD WWTP NPDMUNILRG 09/20/2012 Historical
387009 Notice of Violation None NOV 08/16/2012 for Town of Discovery Bay CSD, Discovery Bay CS SSOMUNISML 08/16/2012 Historical
386008 Notice of Violation None NOV 07/06/2012 for Town of Discovery Bay CSD WWTP NPDMUNILRG 07/06/2012 Historical
396836 Notice of Violation None NOV 05/01/2012 for Town of Discovery Bay CSD NPDMUNILRG 05/01/2012 Historical
364686 Admin Civil Liability R5-2012-0526 ACLO R5-2012-0526 replaces ACLC R5-2008-0627 for Discovery Bay Town, WWTP & CS SSOMUNISML 04/20/2012 Historical
388030 Notice of Violation None NOV 10-APR-12 for TOWN OF DISCOVERY BAY CSD SSOMUNISML 04/10/2012 Active
383569 Notice of Violation None NOV 02/23/2012 for Town of Discovery Bay CSD WWTP NPDMUNILRG 02/23/2012 Historical
382612 Notice of Violation None NOV 12/23/2011 for Town of Discovery Bay CSD WWTP NPDMUNILRG 12/23/2011 Historical
382476 Notice of Violation None NOV 12/19/2011 for Town of Discovery Bay CSD, Discovery Bay CS SSOMUNISML 12/19/2011 Historical
381751 Notice of Violation None NOV 09/29/2011 for Town of Discovery Bay CSD WWTP NPDMUNILRG 09/29/2011 Historical
379776 Notice of Violation None NOV 06/13/2011 for Town of Discovery Bay CSD WWTP NPDMUNILRG 06/13/2011 Historical
379126 Notice of Violation None NOV 05/10/2011 for Town of Discovery Bay CSD WWTP NPDMUNILRG 05/10/2011 Historical
379001 Admin Civil Liability R5-2011-0576 MMPC R5-2011-0576 for Town of Discovery Bay CSD, Discovery Bay WWTP NPDMUNILRG 05/06/2011 Historical
378688 Notice of Violation None NOV 04/07/2011 for Town of Discovery Bay CSD WWTP NPDMUNILRG 04/07/2011 Historical
378372 Notice of Violation None NOV 03/25/2011 for Town of Discovery Bay CSD WWTP NPDMUNILRG 03/25/2011 Historical
378167 Notice of Violation None NOV 03/15/2011 for Town of Discovery Bay CSD WWTP NPDMUNILRG 03/15/2011 Historical
377647 Notice of Violation None NOV 02/09/2011 for Town of Discovery Bay CSD WWTP NPDMUNILRG 02/09/2011 Historical
377067 Notice of Violation None NOV 12/17/2010 for Town of Discovery Bay CSD WWTP NPDMUNILRG 12/17/2010 Historical
376330 Notice of Violation None NOV 10/19/2010 for Town of Discovery Bay CSD WWTP NPDMUNILRG 10/19/2010 Historical
375874 Notice of Violation None NOV 09/08/2010 for Town of Discovery Bay CSD WWTP NPDMUNILRG 09/08/2010 Historical
375460 Notice of Violation None NOV 08/06/2010 for Town of Discovery Bay CSD WWTP NPDMUNILRG 08/06/2010 Historical
375063 Notice of Violation None NOV 07/13/2010 for Town of Discovery Bay CSD, WWTP NPDMUNILRG 07/13/2010 Historical
374903 Notice of Violation None NOV 06/25/2010 for Town of Discovery Bay CSD WWTP NPDMUNILRG 06/25/2010 Historical
374795 Notice of Violation None NOV 05/13/2010 for Town of Discovery Bay CSD WWTP NPDMUNILRG 05/13/2010 Historical
374813 Notice of Violation None NOV 04/13/2010 for Town of Discovery Bay CSD WWTP NPDMUNILRG 04/13/2010 Historical
374846 Notice of Violation None NOV 03/15/2010 for Town of Discovery Bay CSD WWTP NPDMUNILRG 03/15/2010 Historical
374856 Notice of Violation None NOV 02/25/2010 for Town of Discovery Bay CSD WWTP NPDMUNILRG 02/25/2010 Historical
373198 Notice of Violation None NOV 01/29/2010 for Town of Discovery Bay CSD, Discovery Bay TRMT Plant NPDMUNILRG 01/29/2010 Historical
375328 Notice of Violation None NOV 12/17/2009 for Town of Discovery Bay CSD WWTP NPDMUNILRG 12/17/2009 Historical
372458 Admin Civil Liability R5-2009-0595 MMPC R5-2009-0595 for Town of Discovery Bay CSD NPDMUNILRG 12/17/2009 Historical
372606 Notice of Violation None NOV 10/13/2009 for Town of Discovery Bay CSD NPDMUNILRG 10/13/2009 Historical
372577 Notice of Violation None NOV 10/07/2009 for Town of Discovery Bay CSD NPDMUNILRG 10/07/2009 Historical
367460 Notice of Violation None NOV 04/06/2009 for Discovery Bay Town, Discovery Bay WWTP NPDMUNILRG 04/06/2009 Historical
363309 Admin Civil Liability R5-2009-0525 MMPC R5-2009-0525 for Discovery Bay Town NPDMUNILRG 03/30/2009 Historical
353891 Staff Enforcement Letter None SEL 10/15/2008 for Discovery Bay Town, Discovery Bay Trmt Plant NPDMUNILRG 10/15/2008 Historical
353660 13267 Letter None 13267 Ltr and NOV 10/09/2008 for Discovery Bay Town, Discovery Bay Trmt & CS SSOMUNISML 10/09/2008 Historical
343193 Admin Civil Liability R5-2008-0511 MMP Complaint R5-2008-0511 for Discovery Bay Town NPDMUNILRG 03/19/2008 Historical
256698 Notice of Violation None NOV 05/20/2005 for Discovery Bay Town, Discovery Bay WWTP NPDESWW 05/20/2005 Historical
252073 Admin Civil Liability R5-2004-0523 MMPC R5-2004-0523 for Town of Discovery Bay CSD NPDMUNILRG 06/25/2004 Historical
244576 Oral Communication None OC 05/07/2003 for Discovery Bay WWTP NPDMUNILRG 05/07/2003 Historical
244447 Oral Communication None OC 05/01/2003 for Discovery Bay WWTP NPDMUNILRG 05/01/2003 Historical
242969 Cease and Desist Order R5-2003-0068 CDO R5-2003-0068 for Discovery Bay Town, Discovery Bay WWTP NPDMUNILRG 04/25/2003 Historical
246490 Admin Civil Liability R5-2002-0511 MMPC R5-2002-0511 for Town of Discovery Bay CSD NPDMUNILRG 07/10/2002 Historical
238106 Admin Civil Liability R5-2001-0187 MMP Order R5-2001-0187 for Discovery Bay Town NPDMUNILRG 07/26/2001 Historical
235163 Oral Communication None OC 01/04/2001 for Discovery Bay WWTP NPDESWW 01/04/2001 Historical
231653 Oral Communication None OC 11/01/2000 for Discovery Bay WWTP NPDMUNILRG 11/01/2000 Historical
231397 Oral Communication None OC 08/22/2000 for Discovery Bay WWTP NPDMUNILRG 08/22/2000 Historical
232403 Oral Communication None OC 04/28/2000 for Discovery Bay WWTP NPDMUNILRG 04/28/2000 Historical
232405 Oral Communication None OC 04/17/2000 for Discovery Bay WWTP NPDMUNILRG 04/17/2000 Historical
231792 Oral Communication None OC 03/15/2000 for Discovery Bay WWTP NPDMUNILRG 03/15/2000 Historical
231636 Oral Communication None OC 02/01/2000 for Discovery Bay WWTP NPDMUNILRG 02/01/2000 Historical
231641 Cease and Desist Order R5-1999-0097 CDO R5-1999-0097 for Discovery Bay Town, Discovery Bay WWTP NPDMUNILRG 06/11/1999 Historical
223802 Cease and Desist Order R5-1989-0187 CDO R5-1989-0187 for Discovery Bay Town, Discovery Bay WWTP NPDMUNILRG 10/27/1989 Historical
224002 Cease and Desist Order R5-1988-0174 CDO R5-1988-0174 for Discovery Bay Town, Discovery Bay WWTP NPDMUNILRG 09/23/1988 Historical
Total Enforcement Actions: 78
  
  
  
  
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: 10/30/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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