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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
46428 Northrop Grumman Systems Corporation Privately-Owned Business 2980 Fairview Park Drive Falls Church, VA 22042-4511 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
266640 Former TRW Benchmark Facility Los Angeles 4 Manufacturing NEC None None None
243245 Monadnock Facility Los Angeles 4 Facility Owner 03/10/1997 None
231379 Northrop Grumman - Hawthorne Site (Formerly TRW Inc) Los Angeles 4 Manufacturing NEC Owner 03/28/1995 None
647028 Canoga Park Site (Former Landowners Ltd Partnership Property) Los Angeles 4 Service/Commercial Site, NEC Responsibility For 06/02/2010 None
Total Related Places: 4
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
568963 James L'Esperance Person Legally Responsible Official 10/18/2017 None None
539135 Bryan Shieh Person Data Submitter 03/13/2013 None None
538283 Joseph Kwan Person Legally Responsible Official 07/16/2007 None None
141646 Tom Wright Person Employee 02/02/2016 None None
547341 Crystal Chang Person Data Submitter 06/30/2014 None None
539135 Bryan Shieh Person Data Submitter 05/09/2013 None None
119630 Mathew Carfagno Person Facility Contact 03/28/1995 None None
97010 Chris Coltey Person Facility Contact 08/06/1996 None None
546698 Norimitsu Takayoshi Person Data Submitter 06/02/2014 None None
322028 Joel Blair Person Data Submitter 06/10/2006 None None
537542 Matthew Nelson Person Data Submitter 11/05/2012 04/19/2016 None
Total Related Parties: 11
  
  
  
  
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?
393802 NPDES Permit 4 4B192557002 Historical NPDNONMUNIPRCS R4-2013-0169 12/07/2013 02/02/2017 Discharger 11/04/2013 None N
328234 NPDES Permit 4 4B192557002 Historical NPDNONMUNIPRCS R4-2007-0029 07/27/2007 12/06/2013 Discharger 12/13/2001 None N
320766 Enrollee - WDR 4 4B198601039 Historical WDRNONMUNIPRCS R4-2014-0187 01/17/2007 04/26/2017 Discharger 06/02/2010 None N
307751 NPDES Permit 4 4B192557002 Historical NPDESWW 01-177 12/23/2001 07/26/2007 Discharger 12/13/2001 None N
193373 Enrollee 4 4B196000343 Historical NPDNONMUNIPRCS 97-045 09/22/1997 03/05/2004 Discharger 09/01/2005 None N
136767 NPDES Permit 4 4B192557004 Historical NPDESWW 97-057 05/12/1997 12/12/2004 Discharger 05/12/1997 None N
136066 NPDES Permit 4 4B192557002 Historical NPDESWW 96-060 08/19/1996 12/12/2001 Discharger 08/19/1996 None N
133486 NPDES Permit 4 4B192557004 Historical NPDNONMUNIPRCS R4-2004-0169 01/12/2005 05/13/2021 Discharger 12/13/2004 None N
Total Regulatory Measures: 8
  
  
  
  
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
226001 Clean-up and Abatement Order UNKNOWN Enforcement - 4WIP1050181 WIP 09/01/2005 Historical
219753 Clean-up and Abatement Order CAO Enforcement - 4B192557N01 UNREGS 09/29/1989 Historical
411415 Admin Civil Liability R4-2017-0007 ACL R4-2017-0007 for Northrop Grumman Systems Corporation NPDNONMUNIPRCS 05/19/2017 Historical
253742 Notice of Violation NOV NOV sent 5/18/04 for overdue 1Q04 DMR. NPDESWW 05/18/2004 Historical
357942 Admin Civil Liability SWB-2008-4-0088 Expedited Payment Letter for TRW Inc. NPDESWW 09/30/2009 Historical
375934 Admin Civil Liability R4-2010-0155-M EPL No. R4-2010-0155-M 09/09/2010 for Northrop Grumman NPDESWW 09/09/2010 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
431175 James L'Esperance Enrollee - NPDES NPDNONMUNIPRCS 01/31/2020 Active
Total Regulatory Measures linked to Related Parties: 1
  
  
The current report was generated with data as of: 11/03/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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