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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
S36063 Porter Ranch Development Other 11280 Corbin Ave Northridge, CA 91326 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
S934413 Porter Ranch Tract 50506 Los Angeles 4 Facility Discharger 08/07/2025 None
S260118 Porter Ranch Development Los Angeles 4 Facility Discharger 09/01/2005 None
Total Related Places: 2
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
N/A Michael Villani Contact Owner Contact N/A N/A N/A
N/A Peter Kim Contact Owner Contact N/A N/A N/A
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?
S588509 Construction 4 4 19C408635 Active CONSTW 2009-0009-DWQ 08/27/2025 None Discharger 08/07/2025 None None
Total Regulatory Measures: 1
  
  
  
  
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.
S893574 09/02/2025 SW - Failure to Obtain Permit Failure to obtain coverage under the 2022 CGP by 09/01/2025. Violation N Internal Report Porter Ranch Development S186618 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
S458423 Notice of Violation None 4 19C300579 CONSTW 09/05/2025 Active
S425540 Notice of Violation None 4 19C300579 CONSTW 02/03/2017 Historical
S454042 Notice of Violation None 4 19C300579 CONSTW 08/08/2024 Active
S450405 Notice of Violation None 4 19C300579 CONSTW 08/03/2023 Historical
S449543 Notice of Violation None 4 19C300579 CONSTW 05/19/2023 Historical
S426185 Notice of Violation None 4 19C300579 CONSTW 05/12/2017 Historical
Total Enforcement Actions: 6
  
  
  
  
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: 10/10/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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