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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
542627 Cheryl Davis Po Box H20 Concord, CA 94524 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
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
9313 Contra Costa Water District Organization Legally Responsible Official 08/21/2013 None Special District
Total Related Parties: 1
  
  
  
  
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
391454 Contra Costa Water District 401 Certification CERDREDGE 11/10/2011 Historical
453883 Contra Costa Water District Enrollee - 401 Certification CERFILLEXC 08/29/2023 Historical
376713 Contra Costa Water District 401 Certification CERFILLEXC 03/04/2011 Historical
393329 Contra Costa Water District 401 Certification CERFILLEXC 08/01/2014 Historical
454695 Contra Costa Water District Enrollee - 401 Certification CERFILLEXC 11/16/2023 Historical
403674 Contra Costa Water District 401 Certification CERFILLEXC 03/08/2016 Historical
380702 Contra Costa Water District 401 Certification CERFILLEXC 08/24/2009 Historical
459507 Contra Costa Water District 401 Certification CERFILLEXC 02/06/2025 Active
443760 Contra Costa Water District Enrollee - 401 Certification CERFILLEXC 07/30/2021 Active
434097 Contra Costa Water District Enrollee - 401 Certification CERFILLEXC 10/18/2019 Historical
441935 Contra Costa Water District 401 Certification CERFILLEXC 06/30/2022 Historical
391675 Contra Costa Water District Enrollee - 401 Certification CERFILLEXC 07/25/2012 Historical
453646 Contra Costa Water District 401 Certification CERFILLEXC 10/27/2023 Active
428162 Contra Costa Water District Enrollee - 401 Certification CERFILLEXC 06/19/2019 Historical
392852 Contra Costa Water District 401 Certification CERFILLEXC 10/07/2013 Active
433560 Contra Costa Water District Enrollee - 401 Certification CERFILLEXC 02/17/2020 Historical
391712 Contra Costa Water District Enrollee - 401 Certification CERFILLEXC 07/25/2012 Historical
460533 Contra Costa Water District Enrollee - 401 Certification CERREST 04/11/2025 Active
141019 Contra Costa Water District NPDES Permit NPDESWW 05/20/1987 Historical
142279 Contra Costa Water District NPDES Permit NPDESWW 08/19/1998 Historical
142293 Contra Costa Water District NPDES Permit NPDESWW 05/20/1992 Historical
259532 Contra Costa Water District NPDES Permit NPDESWW 06/12/1997 Historical
145548 Contra Costa Water District NPDES Permit NPDESWW 03/17/1982 Historical
395691 Contra Costa Water District Enrollee - NPDES NPDMUNIOTH 04/14/2014 Historical
416912 Contra Costa Water District Enrollee - NPDES NPDNONMUNIPRCS 07/01/2016 Active
194727 Contra Costa Water District Enrollee NPDNONMUNIPRCS 01/30/2001 Historical
194735 Contra Costa Water District Enrollee NPDNONMUNIPRCS 10/15/2003 Historical
328150 Contra Costa Water District Enrollee NPDNONMUNIPRCS 05/27/2004 Historical
411656 Contra Costa Water District 13267 Letter (Non-Enforcement) NPDNONMUNIPRCS 01/20/2017 Active
396659 Contra Costa Water District Enrollee - NPDES NPDNONMUNIPRCS 12/23/2013 Historical
416677 Contra Costa Water District Enrollee - NPDES NPDNONMUNIPRCS 07/01/2016 Active
396659 Contra Costa Water District Enrollee - NPDES NPDNONMUNIPRCS 12/23/2013 Historical
377573 Contra Costa Water District Enrollee NPDNONMUNIPRCS 11/23/2010 Historical
413904 Contra Costa Water District Enrollee - NPDES NPDNONMUNIPRCS 06/19/2017 Active
194730 Contra Costa Water District Enrollee - NPDES NPDNONMUNIPRCS 12/23/2013 Active
391349 Contra Costa Water District Enrollee - NPDES NPDNONMUNIPRCS 06/12/2013 Historical
327423 Contra Costa Water District Enrollee NPDNONMUNIPRCS 03/30/2006 Historical
373650 Contra Costa Water District Enrollee NPDNONMUNIPRCS 03/30/2010 Historical
194722 Contra Costa Water District Enrollee WDR 05/30/1995 Historical
367756 Contra Costa Water District Individual Monitoring Requirem WDR 06/16/2009 Active
259815 Contra Costa Water District Letter WDR 01/12/1996 Historical
146609 Contra Costa Water District WDR WDRMUNIOTH 01/16/1985 Active
176100 Contra Costa Water District WDR WDRNONMUNIPRCS 05/04/2007 Active
391835 Contra Costa Water District Enrollee - WDR WDRNONMUNIPRCS 06/19/2013 Active
367325 Contra Costa Water District Enrollee WDRNONMUNIPRCS 06/16/2009 Historical
349265 Contra Costa Water District Waiver WDRNONMUNIPRCS 03/14/2007 Historical
340045 Contra Costa Water District Waiver WDRNONMUNIPRCS 12/06/2007 Historical
368423 Contra Costa Water District Enrollee WDRNONMUNIPRCS 07/08/2009 Historical
Total Regulatory Measures linked to Related Parties: 48
  
  
The current report was generated with data as of: 11/03/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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