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   Party At-A-Glance Report

  
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General Information
Party ID Party Name Party Classification Mailing Address Work Phone Email/Website
400869 Newhall Ranch SD Special District 1955 Workman Mill Road Whittier, CA 90601 626-458-7151 None
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
658148 Newhall Ranch WRP Los Angeles 4 Wastewater Treatment Facility Owner 09/27/2007 None
Total Related Places: 1
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
649604 Nan Natanom-Harrold Person Data Submitter 03/10/2025 None None
648692 Margott Hinostroza Person Data Submitter 01/15/2025 None None
646863 Lindsay O'Donahue Person Data Submitter 12/12/2024 None None
642265 Michael Flores Person Data Submitter 10/31/2023 None None
640467 Marisol Cira Person Data Submitter 07/10/2023 None None
630002 Preeti Ghuman Person Data Submitter 01/11/2022 None None
626784 Sarah Miles Person Data Submitter 08/11/2021 None None
626009 James Grunwald Person Data Submitter 07/06/2021 None None
621839 Rita Chang Person Data Submitter 02/05/2021 None None
610975 Elizabeth Roswell Person Data Submitter 07/14/2020 None None
609761 Holly Jones Person Data Submitter 06/02/2020 None None
601637 Stefan Szalkowski Person Data Submitter 09/03/2019 None None
598636 Qin Liu Person Data Submitter 06/14/2019 None None
595992 Katie Marjanovic Person Data Submitter 09/11/2020 None None
595992 Katie Marjanovic Person Legally Responsible Official 12/02/2024 None None
592486 Suzanne Brown Person Data Submitter 04/18/2019 None None
580129 Mandy Ng Person Data Submitter 08/29/2018 None None
579020 Jessica Lau Person Data Submitter 06/12/2018 None None
569529 Ryan Honda Person Data Submitter 11/22/2017 None None
562298 Steven Ono Person Data Submitter 02/14/2017 05/10/2018 None
558391 Nicholas Wiehardt Person Data Submitter 08/12/2016 None None
556260 Naoko Munakata Person Legally Responsible Official 06/23/2016 None None
555508 Donald Ton Person Data Submitter 04/21/2016 None None
550152 Misty Brown Person Data Submitter 05/18/2020 None None
550106 Joshua Westfall Person Data Submitter 07/29/2016 None None
546435 Lysa Gaboudian Person Data Submitter 02/01/2017 04/04/2021 None
546435 Lysa Gaboudian Person Legally Responsible Official 04/05/2021 None None
545973 Tom Mitchell Person Data Submitter 04/04/2014 None None
522298 Brittany Liu Person Data Submitter 04/29/2014 05/19/2017 None
522297 Andrew Hall Person Legally Responsible Official 06/16/2015 04/06/2017 None
522293 Esther Cantu Person Data Submitter 04/29/2014 None None
521731 Peter Navas Person Data Submitter 04/08/2014 None None
521719 Abder Yacoby Person Data Submitter 12/09/2014 None None
520173 Steve Burger Person Legally Responsible Official 04/14/2011 None None
400137 Susan Bremser Person Data Submitter 04/24/2014 12/04/2020 None
314909 Nicholas Smal Person Data Submitter 12/06/2017 None None
314901 Erika Bensch Person Legally Responsible Official 04/06/2017 None None
303050 Ann Heil Person Legally Responsible Official 04/21/2014 07/01/2021 None
Total Related Parties: 38
  
  
  
  
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?
383099 NPDES Permit 4 4A190118001 Historical NPDMUNILRG R4-2013-0180 02/01/2014 08/31/2019 Discharger 09/06/2007 None N
422406 NPDES Permit 4 4A190118001 Historical NPDMUNILRG R4-2019-0077 09/01/2019 02/28/2025 Discharger 07/03/2018 None N
331910 NPDES Permit 4 4A190118001 Historical NPDMUNILRG R4-2007-0046 10/27/2007 01/31/2014 Discharger 09/06/2007 None N
458486 NPDES Permit 4 4A190118001 Active NPDMUNILRG R4-2024-0390 03/01/2025 None Discharger 09/19/2024 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
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
Total Regulatory Measures linked to Related Parties: 0
  
  
The current report was generated with data as of: 12/12/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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