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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
S606001 Contra Costa Water District Special District 1331 Concord Avenue Concord, CA 94520 N/A N/A
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
S241853 Multi Purpose Pipeline Prj Contra Costa 5S Facility Discharger 09/01/2005 None
S929851 CONTRA COSTA WATER DISTRICT CANAL SLOPE REPAIRS Contra Costa 5S Facility Discharger 03/27/2025 None
S934383 CCWD Storm Damage Repairs Culvert 24 Contra Costa 5S Facility Discharger 08/07/2025 None
S615059 Bolman Wtp Safety & Water Contra Costa 2 Facility Discharger 03/11/1996 None
S245330 North Main St & Taylor Blvd Slide Reparis Contra Costa 2 Facility Discharger 09/01/2005 None
S208892 Bay Point Pipeline Proj Contra Costa 2 Facility Discharger 09/01/2005 None
S713837 Alternative Intake Proj Victoria Canal Setback Levee & Site Work San Joaquin 5S Facility Discharger 02/25/2008 None
S614940 Mallard Reservoir Slope Erosion Repair Contra Costa 2 Facility Discharger 10/11/2003 None
S610307 Los Vaqueros Area Vasco Rd Contra Costa 5S Facility Discharger 08/18/1994 None
S729839 CCWD Brentwood City WTP Contra Costa 5S Facility Discharger 11/25/2008 None
S649314 Mallard Reservoir Erosion Repair Project Contra Costa 2 Facility Discharger 04/13/2007 None
S803947 Bollman WTP Seismic Improvements Contra Costa 2 Facility Discharger 06/25/2010 None
S813196 Los Vaqueros Expansion Recreation Facility Contra Costa 5S Facility Discharger 10/20/2011 None
S825087 Contra Costa Canal Segment 2 Contra Costa 5S Facility Discharger 08/12/2013 None
S824993 Kellogg Creek Restoration Project Contra Costa 5S Facility Discharger 08/07/2013 None
S858380 Canal Levee Elimination and Flood Protection Project Segments 3 and 4 Contra Costa 5S Facility Discharger 08/28/2017 None
S613112 Diablo Hills Reservoir Contra Costa 2 Facility Discharger 08/18/1998 None
S217912 Clayton Transmission Main Contra Costa 2 Facility Discharger 09/01/2005 None
S610291 50 Sand Creek Contra Costa 5S Facility Discharger 09/02/1994 None
S923154 Shortcut Pipeline Improvements Project Contra Costa 2 Facility Discharger 06/30/2024 None
S241852 Multi Purpose Pipe Line Prj Contra Costa 2 Facility Discharger 09/01/2005 None
S634594 Midhill Reservoir II Contra Costa 2 Facility Discharger 06/14/2006 None
S825124 Deer Valley East Restoration Project Contra Costa 5S Facility Discharger 08/13/2013 None
S851581 Empire Self Storage Contra Costa 5S Facility Discharger 11/30/2016 None
S936613 Los Vaqueros Ponds D2 K3 and M1 Storm Damage Repairs Contra Costa 5S Facility Discharger 09/11/2025 None
S808952 San Miguel Solar Contra Costa 2 Facility Discharger 03/31/2011 None
S821432 Clayton Regency Mobile Home Park Emergency Water Pipeline Extension Project Contra Costa 5S Facility Discharger 02/07/2013 None
S824654 Randall Bold WTP Solids Lagoon Nos 6 & 7 Contra Costa 5S Facility Discharger 07/19/2013 None
S853819 Shortcut Pipeline Phase 2 Improvements Contra Costa 2 Facility Discharger 03/09/2017 None
S912297 1474 Canal Replace Project Segment 5B Contra Costa 5S Facility Discharger 04/20/2023 None
S803865 Los Vaqueros Reservoir Dam Enlargement Project Contra Costa 5S Facility Discharger 06/23/2010 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 Thomas J Linville Contact Owner Contact N/A N/A N/A
N/A Pete Schoemann Contact Owner Contact N/A N/A N/A
N/A Stephen Welch Contact Owner Contact N/A N/A N/A
N/A Jeff Quimby Contact Owner Contact N/A N/A N/A
N/A GARY Darling Contact Owner Contact N/A N/A N/A
N/A Stan Ali Contact Owner Contact N/A N/A N/A
N/A Marie Valmores Contact Owner Contact N/A N/A N/A
N/A Miki Tsubota Contact Owner Contact N/A N/A N/A
N/A Kim Lindbery Contact Owner Contact N/A N/A N/A
N/A David Omoto Contact Owner Contact N/A N/A N/A
N/A Stephen J Welch Contact Owner Contact N/A N/A N/A
Total Related Parties: 11
  
  
  
  
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?
S591006 Construction 5S 5S07C409725 Active CONSTW 2009-0009-DWQ 09/29/2025 None Discharger 09/11/2025 None None
S588476 Construction 5S 5S07C409466 Active CONSTW 2009-0009-DWQ 09/16/2025 None Discharger 08/07/2025 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.
S897331 09/01/2025 SW - Late Report Failure to submit the 2024-2025 Annual Report by 09/01/2025 Violation N Report Shortcut Pipeline Improvements Project S574817 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: 1
*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
S462180 Notice of Violation None 2 07C404462 CONSTW 09/05/2025 Active
S408243 13267 Letter/Order None 5S07I021940 INDSTW 03/09/2012 Historical
S226693 Notice of Violation UNKNOWN 2 07C307343 CONSTW 08/16/1999 Historical
S226649 13267 Letter/Order UNKNOWN 2 07C307343 CONSTW 07/26/1999 Historical
Total Enforcement Actions: 4
  
  
  
  
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: 05/08/2026
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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