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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
643725 Nicholas Heisdorf 2885 South Higuera Street San Luis Obispo, CA 93401 805-835-6558 Nicholas.heisdorf@dot.ca.gov
  
  
  
  
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
608083 California Department of Transportation D5 Organization Legally Responsible Official 02/12/2024 None State Agency
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
456332 California Department of Transportation D5 401 Certification CERFILLEXC 05/14/2024 Active
455907 California Department of Transportation D5 401 Certification CERFILLEXC 04/22/2024 Active
455862 California Department of Transportation D5 Enrollee - 401 Certification CERFILLEXC 02/20/2024 Historical
455809 California Department of Transportation D5 Enrollee - 401 Certification CERFILLEXC 03/13/2024 Active
455728 California Department of Transportation D5 Enrollee - 401 Certification CERFILLEXC 02/26/2024 Historical
455668 California Department of Transportation D5 401 Certification CERFILLEXC 03/04/2024 Active
455451 California Department of Transportation D5 401 Certification CERFILLEXC 02/16/2024 Active
455340 California Department of Transportation D5 401 Certification CERFILLEXC 02/05/2024 Active
454803 California Department of Transportation D5 Enrollee - 401 Certification CERFILLEXC 10/19/2023 Historical
454752 California Department of Transportation D5 401 Certification CERFILLEXC 12/04/2023 Active
437672 California Department of Transportation D5 Enrollee - WDR WDRMUNIOWTS 05/26/2020 Active
437529 California Department of Transportation D5 Enrollee - WDR WDRMUNIOWTS 05/26/2020 Active
Total Regulatory Measures linked to Related Parties: 12
  
  
The current report was generated with data as of: 10/24/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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