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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
9305 Contra Costa County Flood Control County Agency 255 Glacier Drive Martinez, CA 94553-4825 925-313-2190 None
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
895845 Wildcat Creek Fish Passage Project Contra Costa 2 Dredge/Fill Site Owner 07/29/2024 None
860162 Lower Walnut Creek Restoration Project Contra Costa 2 Dredge/Fill Site Owner 07/30/2019 None
840866 Lower Walnut Creek Restoration Project Contra Costa 2 Dredge/Fill Site Owner 10/17/2017 None
830777 Three Creeks Parkway Restoration Project Contra Costa 5S Dredge/Fill Site Owner 12/16/2016 None
789503 Upper Sand Creek Basin Expansion Project Contra Costa 5S Dredge/Fill Site Owner 12/28/2012 None
771086 Contra Costa County Flood Control & Water Conservation District Contra Costa 2 MS4 Owner and Operator 09/15/2011 None
763821 Marsh Creek Stream Flow Gauge Installation Contra Costa 5S Dredge/Fill Site Owner and Operator 11/03/2009 None
260240 San Ramon Creek at Danville Li Contra Costa 2 Dredge/Fill Site Owner 06/17/2005 None
212911 Camino Tassajara Alameda 2 Dredge/Fill Site Owner 06/17/2005 None
Total Related Places: 9
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
600663 Allison Knapp Person Legally Responsible Official 07/30/2019 None None
569103 Paul Detjens Person Legally Responsible Official 10/17/2017 None None
561179 Mike Carlson Person Legally Responsible Official 12/16/2016 None None
526074 Mitch Avalon Person Legally Responsible Official 12/28/2012 None None
526074 Mitch Avalon Person Employee 11/03/2009 None None
Total Related Parties: 5
  
  
  
  
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?
416152 401 Certification 5S 5B07CR00187 Historical CERREST None 03/16/2018 08/02/2022 Discharger 09/06/2017 None N
388635 401 Certification 5S 5B07CR00138 Historical CERFILLEXC None 12/12/2012 12/11/2017 Discharger 12/28/2012 None Y
171921 401 Certification 2 C-07-0566 Historical CERFILLEXC None None None Discharger 06/17/2005 None N
433295 401 Certification 2 2 CW433295 Active CERFILLEXC None 10/08/2020 None Discharger 07/30/2019 None N
170935 401 Certification 2 2 0307053 Historical CERFILLEXC None None None Discharger 06/17/2005 None N
377775 401 Certification 5S 5B07CR00107 Historical CERFILLEXC None 11/03/2009 11/03/2014 Discharger 11/03/2009 None N
416713 Enrollee - 401 Certification 2 2 CW416713 Historical CERFILLEXC SB17001GN 10/30/2017 10/30/2022 Discharger 10/17/2017 None N
391042 401 Certification 2 None Historical CERDREDGE None 07/21/2010 07/21/2015 Discharger 06/11/2013 None N
Total Regulatory Measures: 8
  
  
  
  
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
385941 Staff Enforcement Letter None SEL 05/09/2012 for Contra Costa County Flood Control MNSTW1 05/09/2012 Historical
Total Enforcement Actions: 1
  
  
  
  
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: 02/24/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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