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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
S678125 Sunstone Partners LLC Privately-Owned Business 2820 TOWNSGATE ROAD SUITE 207 Westlake Village, CA 91361 N/A N/A
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
S935188 Tract 5920 Lot 2 Ventura 4 Facility Discharger 08/20/2025 None
S906259 Tract 5920 Lot 2 Ventura 4 Facility Discharger 07/22/2022 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 John Maddux Contact Owner Contact N/A N/A N/A
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 five years
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.
S884834 04/21/2023 SW - Incomplete/Insufficient SWPPP ? Post-Construction BMP Plan needs to be uploaded into SMARTS. ? Contractors list needs to be updated and included in the SWPPP Violation N Inspection Tract 5920 Lot 2 S552104 2009-0009-DWQ Y
S884833 04/21/2023 SW - Deficient BMP Implementation Concrete material waste and spills were observed directly on the ground without proper BMPs in place Violation N Inspection Tract 5920 Lot 2 S552104 2009-0009-DWQ Y
Report currently showing last five years of violations. Click here to return to viewing one year of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 2
*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
S449734 Verbal Communication None 4 56C398142 CONSTW 04/21/2023 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: 05/20/2026
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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