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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
51654 Westlake Village City City Agency 31200 Oak Crest Drive Westlake Village, CA 91361 818-706-1613 None
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
808438 Los Angeles County MS4s Los Angeles 4 MS4 None None None
860772 RGP 63 Westlake Village Detention Basin Los Angeles 4 Dredge/Fill Site Owner 08/28/2019 None
860687 Westlake Village Detention Basin Los Angeles 4 Dredge/Fill Site Owner 08/26/2019 None
774528 Westlake Village Community Park Project Los Angeles 4 Dredge/Fill Site Owner 12/21/2011 None
644297 Westlake Village CS Los Angeles 4 Collection_System Owner 12/21/2006 None
243679 Westlake Village City - Mun Separate Storm Sewer, MS4 Los Angeles 4 MS4 Owner 12/13/2001 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
646750 Tiara Caruthers Person Data Submitter 08/19/2024 None None
633355 Roxanne Hughes Person Legally Responsible Official 07/27/2022 None None
533657 Raymond Taylor Person Employee 05/08/2012 None None
362134 Norman Cortez Westlake Village Person Data Submitter 01/26/2007 01/11/2023 None
362164 Nicholas Agbobu Person Legally Responsible Official 01/04/2007 09/22/2022 None
361559 May Hong Person Legally Responsible Official 03/06/2024 None None
361559 May Hong Person Data Submitter 01/24/2007 None None
650353 Marie Garcia Person Data Submitter 04/15/2025 None None
637430 Kelsey Reed Person Data Submitter 02/27/2023 None None
361237 Keith Lehto Person Legally Responsible Official 01/24/2007 07/17/2012 None
112551 John Knipe Person Board member 05/12/2003 None None
112551 John Knipe Person Board member 12/13/2001 None None
334830 Jeffrey Bouse Person Legally Responsible Official 01/25/2007 10/18/2012 None
334830 Jeffrey Bouse Person Legally Responsible Official 07/17/2012 None None
650303 Hassan Majidi Person Data Submitter 04/10/2025 None None
460817 Gohar Tsolakyan Person Data Submitter 03/04/2008 09/24/2012 None
524466 Erica Gonzales Person Data Submitter 09/02/2010 07/12/2012 None
644438 Eric Liu Person Legally Responsible Official 04/30/2024 None None
601419 Dave Kelly Person Legally Responsible Official 08/26/2019 None None
550148 Daniel Lafferty Person Legally Responsible Official 02/20/2015 11/16/2015 None
362361 Cynthia Marquez Westlake Village Person Data Submitter 01/29/2007 09/02/2010 None
639886 Brigette Padilla Person Data Submitter 06/06/2023 10/02/2024 None
643241 Andrew Ngumba Person Legally Responsible Official 03/12/2024 None None
537094 Alexander Villarama Person Legally Responsible Official 07/23/2013 None None
Total Related Parties: 24
  
  
  
  
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?
317304 Enrollee 4 4SSO11407 Active SSOMUNISML 2022-0103-DWQ 05/02/2006 None Discharger 12/21/2006 None N
384977 Letter 4 4B190220001 Historical MNSTW1 R4-2012-0175 03/29/2012 03/30/2012 Discharger 05/08/2012 None N
433791 Enrollee - 401 Certification 4 4WQC40118125 Active CERFILLEXC 2018-0029-EXEC 11/30/2018 None Discharger 08/26/2019 None N
382511 401 Certification 4 None Historical CERFILLEXC None 01/30/2009 01/29/2014 Discharger 12/21/2011 None N
Total Regulatory Measures: 4
  
  
  
  
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
228076 Notice of Violation NOV Notice of Violation was sent 11/4/99 for failure to report a sewag - 4B19353N01 DISCHLND 11/04/1999 Historical
342046 Notice of Violation NOV NOV sent 3/4/08 for 171 receiving water violations of MS4 permit CAS004001. MNSTW1 03/04/2008 Historical
242087 13267 Letter 13267 LTR 13267 Ltr sent 5/12/03 requesting additional information on 3 sewage spills. MNSTW1 05/12/2003 Historical
Total Enforcement Actions: 3
  
  
  
  
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: 01/02/2026
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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