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 California Integrated Water Quality System Project (CIWQS)
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Place ID 858816
  
  
  
  
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General Information
Region Place ID Place Name Place Type Place Address Place County
4 858816 Puente Valley Operable Unit Intermediate Zone Interim Remedy Water Treatment Plant 111 Hudson Industry, CA, 91744-4405 Los Angeles

Expand/Contract Related Parties
Related Parties
Party Party Type Party Name Role Classification Relationship Start Date Relationship End Date
598581 Person Matthew Williams Contact 06/06/2019
598559 Organization Northrop Grumman Systems Corporation Owner Privately-Owned Business 06/06/2019
568963 Person James L'Esperance Contact 06/06/2019
26423 Organization La Puente Valley Cnty Water District Operator Special District 06/06/2019
598561 Person Roy Frausto Contact 06/06/2019
Total Related Parties: 5

Expand/Contract Regulatory Measures
Regulatory Measures
Reg Measure ID Reg Measure Type Region Program Order No. WDID Effective Date Expiration Date Status Amended?
431175 Enrollee - NPDES 4 NPDNONMUNIPRCS R4-2018-0125 4B198903052 01/31/2020 11/13/2023 Active N
Total Reg Measures: 1

Expand/Contract Violations
Violations
Violation ID Occurred Date Violation Type (-) Violation Description Corrective Action Status Classification Source
1141675 02/15/2025 LREP Fourth Quarter 2024 report was submitted one day late. Violation B Report
1141651 08/15/2024 LREP Second Quarter 2024 report was submitted one day late. Violation B Report
1141652 05/31/2024 DMON Temperature, pH, TSS, Turbidity, BOD, Oil and Grease, Settleable Solids, Sulfides, Phenols, Residual Chlorine, MBAS, Total Dissolved Solids, Sulfate, Chloride, Boron, Nitrogen, Selenium, 1,1-Dichloroethylene, Methyl tertiary butyl ether, Tetrachloroethylene, Trichloroethylene, Vinyl Chloride, Benzo(a)pyrene, Bis(2-Ethylhexyl) phthalate, N-nitrosodimethylamine, 1,4-Dioxane, and Perchlorate not sampled in May, required monthly. Violation B Report
1141653 04/11/2024 CAT1 Chloride Maximum Daily (MDEL) limit is 180.0 mg/L and reported value was 190.0 mg/L. Violation B Report
1141673 04/11/2024 CAT1 Sulfate, Total (as SO4) Maximum Daily (MDEL) limit is 300.0 mg/L and reported value was 390.0 mg/L. Violation B Report
1126718 02/15/2024 LREP Fourth Quarter 2023 report was submitted one day late. Violation B Report
1126704 05/31/2023 DMON 1,4-Dioxane not analyzed for the month of May, required monthly. Violation B Report
1115283 09/24/2021 CAT2 Dioxane Daily Maximum limit is 3 ug/L and reported value was 3.7 ug/L. Violation B Report
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 8 Priority Violations: 0
*Click the "(+/-) Violation Description" link to expand and contract the violation description.
*As of 5/20/2010, the Water Board's Enforcement Policy requires that all violations be classified as 1, 2 or 3, with class 1 being the highest. Prior to this, violations were simply classified as Yes or No. If a 123 classification has been assigned to a violation that occurred before this date, that classification data will be displayed instead of the Yes/No data.

Violation Types
CAT1 = Category 1 Pollutant (Effluent Violation for Group 1 Pollutant) CAT2 = Category 2 Pollutant (Effluent Violation for Group 2 Pollutant)
DMON = Deficient Monitoring LREP = Late Report

Expand/Contract Enforcement Actions
Enforcement Actions
Enf Id Enf Type Enf Order No. Effective Date Status
452805 Admin Civil Liability R4-2023-0155 08/23/2023 Historical
Total Enf Actions: 1

Expand/Contract Inspections
Inspections
Inspection ID Inspection Type Lead Inspector Actual End Date Planned Violations Attachment
36971203 Prerequirement inspection Gensen Kai 07/18/2019 Y 0 Download
Total Inspections: 1 Last Inspection: 07/18/2019
  
The current report was generated with data as of: 07/29/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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