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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
S168540 City of Antioch Privately-Owned Business PO Box 5007 Antioch, CA 94531 None None
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
S630322 WTP Solids Handling Facilities & Plant B Expansion Contra Costa 5S Facility Discharger 03/29/2006 None
S917379 West Antioch Creek Silt Removal Sacramento 5S Facility Discharger 11/03/2023 None
S723108 Markley Creek Restoration Proj Contra Costa 5S Facility Discharger 07/22/2008 None
S805189 Downtown Roadway Pavement Rehabilitation Contra Costa 5S Facility Discharger 08/17/2010 None
S828818 Somersville Road Widening Contra Costa 5S Facility Discharger 04/11/2014 None
S857057 Phase I MS4 Contra Costa 5S Facility Discharger 09/23/2010 None
S891558 Brackish Water Desalination Contra Costa 5S Facility Discharger 02/22/2021 None
S812426 Pavement Rehabilitaton Contra Costa 5S Facility Discharger 09/12/2011 None
S826913 Water Main Replacement at Various Locations PW503 14 Contra Costa 5S Facility Discharger 12/02/2013 None
S820959 Wilbur Avenue Overhead Widening Contra Costa 5S Facility Discharger 01/10/2013 None
S917714 West Antioch Creek Silt Removal Sacramento 5S Facility Discharger 11/21/2023 None
S919415 Contra Loma Estates Park Renovation Contra Costa 5S Facility Discharger 02/07/2024 None
S806034 Lone Tree Way Intersection Improvements Contra Costa 5S Facility Discharger 10/12/2010 None
S809268 Delta Fair Blvd Roadway Reconstruction Contra Costa 5S Facility Discharger 04/13/2011 None
S830912 Sewer Main Replacement at Various Locations Contra Costa 5S Facility Discharger 08/11/2014 None
S878453 Antioch CDBG Phase 8 Contra Costa 5S Facility Discharger 01/14/2020 None
S640759 James Donlon Blvd Roadway Rehabilitation Contra Costa 5S Facility Discharger 09/13/2006 None
S803265 CDBG-R Downtown Roadway Rehabilitation Phase 3 Contra Costa 5S Facility Discharger 05/25/2010 None
S823418 Lone Tree Way Intersection Improvements Contra Costa 5S Facility Discharger 05/28/2013 None
S826485 Lone Tree Way Intersection Improvements Contra Costa 5S Facility Discharger 10/29/2013 None
S653369 James Donlon Roadway Rehab Contra Costa 5S Facility Discharger 07/02/2007 None
S715441 Downtown Roadway Rehabilitation PW 678 Contra Costa 5S Facility Discharger 03/26/2008 None
S736073 Prewett Park Community Facilities Contra Costa 5S Facility Discharger 04/08/2009 None
S822282 Antioch Community Park Soccer Fields Contra Costa 5S Facility Discharger 03/28/2013 None
S805173 Antioch Boat Launching Facility Contra Costa 5S Facility Discharger 08/16/2010 None
S862069 West Antioch Creek Channel Improvements Contra Costa 5S Facility Discharger 02/22/2018 None
S239238 Antioch City Maintenance Services Contra Costa 5S Facility Discharger 09/01/2005 None
S714811 Somersville Rd Bridge Rehabilitation PW 141 B Contra Costa 5S Facility Discharger 03/12/2008 None
S744572 DDSD Antioch City Recycled Water Line Proj Contra Costa 5S Facility Discharger 09/14/2009 None
S817549 Markley Creek Culvert Replacement Contra Costa 5S Facility Discharger 06/14/2012 None
S715171 Markley Creek Contra Costa 5S Facility Discharger 03/21/2008 None
Total Related Places: 31
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
N/A Scott Buenting Contact Owner Contact N/A N/A N/A
N/A Lonnie Karste Contact Owner Contact N/A N/A N/A
N/A Ron Bernal Contact Owner Contact N/A N/A N/A
N/A Rowland Bernal Jr Contact Owner Contact N/A N/A N/A
N/A Phil Hoffmeister Contact Owner Contact N/A N/A N/A
N/A Ahmed Abu Aly Contact Owner Contact N/A N/A N/A
N/A Pat Scott Contact Owner Contact N/A N/A N/A
N/A Phil Harrington Contact Owner Contact N/A N/A N/A
N/A Rob Bernal Contact Owner Contact N/A N/A N/A
N/A Scott Buenting Contact Owner Contact N/A N/A N/A
N/A Stephen Scudero Contact Owner Contact N/A N/A N/A
N/A John Samuelson Contact Owner Contact N/A N/A N/A
N/A Philip Hoffmeister Contact Owner Contact N/A N/A N/A
Total Related Parties: 13
  
  
  
  
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?
S488628 Phase I MS4 5S 2 07M1000184 Active MNSTW1 R2-2022-0018 09/23/2010 None Discharger 09/23/2010 None None
S570186 Construction 5S 5S07C403296 Active CONSTW 2009-0009-DWQ 03/11/2024 None Discharger 02/07/2024 None None
Total Regulatory Measures: 2
  
  
  
  
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.
S897775 09/01/2025 SW - Late Report Failure to submit the 2024-2025 Annual Report by 09/01/2025 Violation N Report Contra Loma Estates Park Renovation S570186 2009-0009-DWQ Y
S894943 09/02/2025 SW - Failure to Obtain Permit Failure to obtain coverage under the 2022 CGP by 09/01/2025. Violation N Internal Report Brackish Water Desalination S532445 2009-0009-DWQ Y
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: 2
*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
S462624 Notice of Violation None 5S07C403296 CONSTW 09/05/2025 Active
S459792 Notice of Violation None 5S07C393156 CONSTW 09/05/2025 Active
S431887 1st Annual Report Notice of Non-Compliance None 2 07M1000184 UNKNOWN 12/04/2018 Active
S431886 1st Annual Report Notice of Non-Compliance None 2 07M1000184 UNKNOWN 12/04/2018 Active
S431885 1st Annual Report Notice of Non-Compliance None 2 07M1000184 UNKNOWN 12/04/2018 Active
S422470 2nd Annual Report Notice of Non-Compliance None 5S07I006264 INDSTW 01/28/2016 Historical
S422079 Notice of Non-Compliance for Non-Filers None 5S07I006264 INDSTW 12/11/2015 Historical
S420878 Notice of Non-Compliance for Non-Filers None 5S07I006264 INDSTW 10/30/2015 Historical
S420277 1st Annual Report Notice of Non-Compliance None 5S07I006264 INDSTW 09/16/2015 Historical
S417260 1st Annual Report Notice of Non-Compliance None 5S07C368385 CONSTW 10/03/2014 Historical
S416794 Verbal Communication None 5S07C370614 CONSTW 11/02/2014 Active
S416713 1st Annual Report Notice of Non-Compliance None 5S07I006264 INDSTW 08/15/2014 Historical
S414788 2nd Annual Report Notice of Non-Compliance None 5S07C359429 CONSTW 01/31/2014 Historical
S413860 1st Annual Report Notice of Non-Compliance None 5S07C359429 CONSTW 10/16/2013 Historical
S413796 1st Annual Report Notice of Non-Compliance None 5S07C356381 CONSTW 10/16/2013 Historical
S413162 1st Annual Report Notice of Non-Compliance None 5S07I006264 INDSTW 08/16/2013 Historical
S412496 2nd Annual Report Notice of Non-Compliance None 5S07I006264 INDSTW 10/23/2012 Historical
S412332 2nd Annual Report Notice of Non-Compliance None 5S07C359429 CONSTW 05/07/2013 Historical
S412331 2nd Annual Report Notice of Non-Compliance None 5S07C356381 CONSTW 05/07/2013 Historical
S410687 1st Annual Report Notice of Non-Compliance None 5S07C359429 CONSTW 10/23/2012 Historical
S410667 1st Annual Report Notice of Non-Compliance None 5S07C356381 CONSTW 10/23/2012 Historical
S409924 1st Annual Report Notice of Non-Compliance None 5S07I006264 INDSTW 08/31/2012 Historical
S408899 Verbal Communication None 5S07C356381 CONSTW 06/07/2012 Historical
S408020 Verbal Communication None 5S07C356381 CONSTW 12/27/2011 Historical
S406908 2nd Annual Report Notice of Non-Compliance None 5S07I006264 INDSTW 11/01/2011 Historical
S406907 1st Annual Report Notice of Non-Compliance None 5S07I006264 INDSTW 08/24/2011 Historical
S403459 Verbal Communication None 5S07C359429 CONSTW 12/20/2010 Historical
S402682 2nd Annual Report Notice of Non-Compliance None 5S07I006264 INDSTW 09/30/2010 Historical
S402681 1st Annual Report Notice of Non-Compliance None 5S07I006264 INDSTW 08/19/2010 Historical
S400837 2nd Annual Report Notice of Non-Compliance None 5S07I006264 INDSTW 09/03/2009 Historical
S400426 1st Annual Report Notice of Non-Compliance None 5S07I006264 INDSTW 07/23/2009 Historical
S354312 Notice of Non-Compliance for Non-Filers None 5S07I006264 INDSTW 10/01/2008 Historical
S352587 Notice of Non-Compliance for Non-Filers None 5S07I006264 INDSTW 08/01/2008 Historical
S336977 Notice of Non-Compliance for Non-Filers None 5S07I006264 INDSTW 08/22/2007 Historical
S325027 Notice of Violation None 5S07I006264 INDSTW 03/30/2007 Active
S316109 Notice of Non-Compliance for Non-Filers None 5S07I006264 INDSTW 08/17/2006 Historical
S309581 Notice of Non-Compliance for Non-Filers None 5S07I006264 INDSTW 08/11/2005 Historical
S254479 Notice of Non-Compliance for Non-Filers UNKNOWN 5S07I006264 INDSTW 08/19/2004 Historical
S252673 Notice of Non-Compliance for Non-Filers UNKNOWN 5S07I006264 INDSTW 08/19/2004 Historical
Total Enforcement Actions: 39
  
  
  
  
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: 12/30/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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