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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
12599 Delta Diablo Special District 2500 Pittsburg Antioch Highway Antioch, CA 94509(+) 925-756-1940 None
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
219552 Delta Diablo WWTP Contra Costa 2 Wastewater Treatment Facility Owner 05/19/1998 None
814008 Delta Diablo SD Recycled Water Program (Landscape in RB5) Contra Costa 2 Recycled Water Use Area None None None
723734 Delta Diablo SD Recycled Water Program (RB2) Contra Costa 2 Wastewater Treatment Facility Owner 01/01/2006 None
630841 Delta Diablo SD CS Contra Costa 2 Collection_System Owner 04/03/2006 None
815933 Delta Diablo Contra Costa 5S Wastewater Treatment Facility Owner 06/18/2015 None
902429 Delta Diablo Shore Acres Spill Response Contra Costa 2 Dredge/Fill Site Owner 08/08/2025 None
Total Related Places: 6
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
653222 KATIUSCA ZUNIGA Person Data Submitter 11/21/2025 None None
652839 Jungjoon Park Person Data Submitter 10/16/2025 None None
648210 Nick Steiner Person Legally Responsible Official 03/21/2025 None None
648398 Brian Thomas Person Data Submitter 12/10/2024 None None
648210 Nick Steiner Person Data Submitter 11/01/2024 None None
574459 Yasmin Aspiras Person Data Submitter 03/06/2024 None None
480247 Amanda Roa Person Data Submitter 02/29/2024 11/01/2024 None
603650 Gabriel Duong Person Data Submitter 10/26/2023 07/16/2024 None
639526 Anthony Dejesus Person Data Submitter 05/22/2023 None None
303546 Darrell Cain Person Data Submitter 05/02/2023 None None
635110 Trevor Simpson Person Legally Responsible Official 09/07/2022 None None
633604 Michael Placencia Person Data Submitter 06/09/2022 05/13/2024 None
633602 taylor amaro Person Data Submitter 06/09/2022 None None
633598 Kelly Ring Person Data Submitter 06/08/2022 None None
631563 Sandeep SIdhu Person Data Submitter 03/15/2022 None None
392348 Dustin Bloomfield Person Legally Responsible Official 12/26/2019 None None
572036 Terry Spurgeon Person Legally Responsible Official 01/18/2018 02/11/2022 None
544521 Vincent De Lange Person Legally Responsible Official 01/09/2018 None None
480247 Amanda Roa Person Data Submitter 06/18/2015 12/17/2019 None
549760 Michael Bakaldin Person Legally Responsible Official 02/25/2015 12/17/2019 None
547148 Steve Rodriguez Person Legally Responsible Official 12/08/2014 12/11/2025 None
547151 Dean Eckerson Person Legally Responsible Official 07/01/2014 12/11/2025 None
538966 Amanda Roa Person Employee 02/28/2013 03/29/2017 None
538574 Mike Bakaldin Person Legally Responsible Official 02/08/2013 12/17/2019 None
303546 Darrell Cain Person Data Submitter 07/14/2011 02/11/2022 None
527870 Steve Dominguez Person Legally Responsible Official 07/14/2011 07/16/2014 None
527874 Jason Wong Person Data Submitter 07/14/2011 02/11/2022 None
527868 Gary Darling Person Legally Responsible Official 07/14/2011 12/30/2016 None
527871 Joaquin Gonzalez Person Legally Responsible Official 07/14/2011 None None
527872 Rob Wright Person Data Submitter 07/14/2011 02/11/2022 None
527875 Bill Svoboda Person Data Submitter 07/14/2011 None None
527873 Mary Johnson Person Data Submitter 07/14/2011 03/01/2013 None
527876 Gurmukh Grewal Person Data Submitter 07/14/2011 02/11/2022 None
480247 Amanda Roa Person Data Submitter 07/29/2008 None None
378500 Dennis Laniohan Person Legally Responsible Official 05/15/2007 12/31/2013 None
104084 Gary Darling Person Legally Responsible Official 03/29/2007 03/28/2017 None
303546 Darrell Cain Person Employee 03/09/2006 None None
140498 Paul Causey Person Enforcement Contact 12/28/2001 None None
104084 Gary Darling Person Facility Contact 05/19/1998 12/30/2016 None
Total Related Parties: 39
  
  
  
  
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?
145597 NPDES Permit 2 2 071013001 Historical NPDMUNILRG 83-015 06/23/1983 None Discharger 06/23/1983 None Y
299882 Enrollee 2 2SSO10127 Active SSOMUNISML 2022-0103-DWQ 08/14/2006 None Discharger 04/10/2006 None N
365245 NPDES Permit 2 2 071013001 Historical NPDMUNILRG R2-2009-0018 05/01/2009 09/30/2014 Discharger 05/13/2009 None Y
389437 Enrollee 2 2 07REC0001 Historical WDRMUNIENROTH 2009-0006-DWQ 01/20/2010 03/20/2021 Discharger 02/28/2013 None N
435913 NPDES Permit 2 2 071013001 Active NPDMUNILRG R2-2019-0035 02/01/2020 None Discharger 12/12/2019 None Y
430613 Co-Permitee 2 2 071013001 Active NPDMUNILRG R2-2024-0013 07/01/2019 None Discharger 05/20/2019 None N
360496 Co-Permitee 2 2 071013001 Historical NPDMUNILRG R2-2007-0077 03/01/2008 12/31/2012 Discharger 03/01/2008 None N
378798 Co-Permitee 2 2 071013001 Historical NPDMUNILRG R2-2011-0012 04/01/2011 12/31/2012 Discharger 03/01/2008 None N
349731 Enrollee - WRR 2 2 071013002 Historical REC None 06/19/2000 06/24/2022 Discharger 01/01/2006 None N
459245 Enrollee - WRR 2 2 071013002 Active REC 2016-0068-DDW 06/24/2022 None Discharger 11/22/2024 None N
141514 NPDES Permit 2 2 071013001 Historical NPDMUNILRG 88-030 03/16/1988 None Discharger 03/16/1988 None Y
142783 NPDES Permit 2 2 071013001 Historical NPDMUNILRG 93-142 11/19/1993 12/02/2003 Discharger 11/19/1993 None Y
132603 NPDES Permit 2 2 071013001 Historical NPDMUNILRG R2-2003-0114 02/01/2004 05/01/2009 Discharger 12/03/2003 None Y
389137 Co-Permitee 2 2 071013001 Active NPDMUNILRG R2-2017-0041 01/01/2013 None Discharger 03/01/2008 None Y
397694 NPDES Permit 2 2 071013001 Historical NPDMUNILRG R2-2014-0030 10/01/2014 01/31/2020 Discharger 08/14/2014 None N
462114 401 Certification 2 2 CW462114 Active CERFILLEXC None 11/14/2025 None Discharger 08/08/2025 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.
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
225480 Oral Communication UNKNOWN Enforcement - 2 071013001 NPDMUNILRG 03/30/2000 Historical
225481 Oral Communication UNKNOWN Enforcement - 2 071013001 NPDMUNILRG 05/19/2000 Historical
225483 Oral Communication UNKNOWN Enforcement - 2 071013001 NPDMUNILRG 03/19/2000 Historical
227440 Oral Communication UNKNOWN Enforcement - 2 071013001 NPDMUNILRG 10/21/1999 Historical
227441 Oral Communication UNKNOWN Enforcement - 2 071013001 NPDMUNILRG 11/05/1999 Historical
238768 Admin Civil Liability R2-2001-0152 Enforcement - 2 071013001 NPDMUNILRG 12/28/2001 Historical
246267 Notice of Violation UNKNOWN Enforcement - 2 071013001 NPDMUNILRG 10/10/2002 Historical
308373 Oral Communication None Staff Enforcement of Reporting Violation NPDMUNILRG 08/24/2006 Historical
309521 Admin Civil Liability R2-2006-0044 MMP Complaint R2-2006-0044 for Delta-Diablo Sanitation District NPDMUNILRG 09/13/2006 Historical
393924 Notice of Violation None NOV 10/15/2013 for Delta Diablo Sanitation District, Delta Diablo SD CS SSOMUNISML 10/15/2013 Historical
Total Enforcement Actions: 10
  
  
  
  
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: 12/22/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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