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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
538515 Hetch Hetchy Water & Power Privately-Owned Business Po Box 160 Moccasin, CA 95347 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
826350 Rickson Road Culvert PRSTRCV-0.30M Replacement Project Tuolumne 5S Dredge/Fill Site Owner 07/14/2016 None
798694 Mountain Tunnel Rockfall Tuolumne 5S Dredge/Fill Site Owner 09/11/2013 None
816929 Cherry-Eleanor Tunnel Grizzly Maintenance Tuolumne 5S Dredge/Fill Site Owner 07/29/2015 None
796419 Eleanor Reservoir Coffer Dam Berm Repair Tuolumne 5S Dredge/Fill Site Owner 07/02/2013 None
791221 Eleanor Reservoir Dam Valve Repair Project Tuolumne 5S Dredge/Fill Site Owner 02/05/2013 None
811507 Lower Cherry Aqueduct Mobile Plant Project Tuolumne 5S All Other Operator 12/16/2014 None
Total Related Places: 6
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
363849 Peter Dean Person Legally Responsible Official 02/05/2013 09/16/2015 None
552323 Mae Frantz Person Legally Responsible Official 07/29/2015 None None
Total Related Parties: 2
  
  
  
  
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?
407658 401 Certification 5S 5B55CR00100 Historical CERFILLEXC None 09/08/2016 11/28/2018 Discharger 07/14/2016 None N
402249 401 Certification 5S 5B55CR00096 Historical CERFILLEXC None 09/15/2015 02/01/2016 Discharger 07/29/2015 None N
399195 Enrollee - NPDES 5S 5B55NP00009 Historical NPDNONMUNIPRCS R5-2013-0074 12/11/2014 11/16/2015 Discharger 12/16/2014 None N
393155 Enrollee - 401 Certification 5S 5B55CR00044 Historical CERFILLEXC RGP 60 05/06/2012 05/06/2017 Discharger 09/11/2013 None N
391857 401 Certification 5S 5B55CR00069 Historical CERFILLEXC None 12/26/2012 12/27/2013 Discharger 07/02/2013 None N
388977 401 Certification 5S 5B55CR00075 Historical CERFILLEXC None 09/21/2012 01/29/2016 Discharger 02/05/2013 None Y
Total Regulatory Measures: 6
  
  
  
  
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
405453 Admin Civil Liability R5-2016-0527 ACL R5-2016-0527 for Hetch Hetchy Water & Power NPDNONMUNIPRCS 04/21/2016 Historical
403854 Notice of Violation None NOV 12/01/2015 for Hetch Hetchy Water & Power NPDNONMUNIPRCS 12/01/2015 Historical
Total Enforcement Actions: 2
  
  
  
  
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: 10/30/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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