General Information
Party ID	Party Name	Party Classification	Mailing Address	Work Phone	Email/Website
598559	Northrop Grumman Systems Corporation	Privately-Owned Business	One Space Park Drive Cer Xe6d21 Redondo Beach, CA 90278	310-332-9348	James.Lesperance@ngc.com	

Related Places
Place ID	Place Name	County	Region	Place Type	Relationship to Party	Relationship Start Date	Relationship End Date
858816	Puente Valley Operable Unit Intermediate Zone Interim Remedy	Los Angeles	4	Water Treatment Plant	Owner	06/06/2019	null	

Related Parties
Party ID	Party Name	Party Type	Role/Relationship	Relationship Start Date	Relationship End Date	Classification
568963	James L'Esperance	Person	Employee	06/06/2019	null	null	
598581	Matthew Williams	Person	Legally Responsible Official	06/06/2019	null	null	

Regulatory Measures(non-enforcement)
Reg. Measure ID	Regulatory Measure Type	Region	WDID	Title	Status	Program	Order No.	RM Effective Date	RM Termination Date	Relationship	Relationship Start Date	Relationship End Date
431175	Enrollee - NPDES	4	4B198903052	Enrollee - NPDES Gen Permit for GW Const & Proj Dewat for Northrop Grumman Systems Corporation	Active	NPDNONMUNIPRCS	R4-2018-0125	01/31/2020	null	Discharger	02/06/2020	null	

Violations within the past calendar 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.
1141651	08/15/2024	Late Report	Second Quarter 2024 report was submitted one day late.	Violation	N	Report	Puente Valley Operable Unit Intermediate Zone Interim Remedy	431175	R4-2018-0125	N	
1141675	02/15/2025	Late Report	Fourth Quarter 2024 report was submitted one day late.	Violation	N	Report	Puente Valley Operable Unit Intermediate Zone Interim Remedy	431175	R4-2018-0125	N	

Enforcement Actions
Enforcement ID	Enforcement Type	Enf. Order No.	Title	Program	Effective Date	Status
452805	Admin Civil Liability	R4-2023-0155	ACL R4-2023-0155 for Northrop Grumman Systems Corporation	NPDNONMUNIPRCS	08/23/2023	Historical	

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