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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
11792 Covina Valley Water Company Privately-Owned Business 146 East College Street Covina, CA 91723 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
268611 William B. Temple Water Treatment Plant #1 None 4 Water Treatment Plant Owner and Operator 07/20/1988 None
826649 Covina Valley Water Company Wholesaler WS Los Angeles 4 Utility Structure Owner and Operator 07/26/2016 None
846380 Covina Valley Water Company previous Valencia Heights Water Co. WS Los Angeles 4 Utility Structure Owner and Operator 07/16/2025 None
Total Related Places: 3
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
525221 David DeJesus Person Legally Responsible Official 12/05/2010 11/01/2024 None
131078 Steve Sherman Person Data Submitter 06/10/2006 None None
131078 Steve Sherman Person Facility Contact 07/20/1988 None None
Total Related Parties: 3
  
  
  
  
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?
449788 NPDES Permit 4 4B192526001 Active NPDINDSML R4-2022-0272 01/01/2023 None Discharger 11/03/2022 None N
420788 Enrollee - NPDES 4 4DW0466 Active NPDNONMUNIPRCS 2014-0194-DWQ 01/01/2018 None Discharger 07/16/2025 None N
407941 Enrollee - NPDES 4 4DW0652 Active NPDNONMUNIPRCS 2014-0194-DWQ 06/26/2016 None Discharger 06/26/2016 None N
400528 NPDES Permit 4 4B192526001 Historical NPDNONMUNIPRCS R4-2016-0275 09/01/2016 12/31/2022 Discharger 04/09/2015 None N
376793 NPDES Permit 4 4B192526001 Historical NPDNONMUNIPRCS R4-2010-0197 12/04/2010 08/31/2016 Discharger 12/09/1999 None N
297238 NPDES Permit 4 4B192526001 Historical NPDINDSML R4-2005-0071 11/03/2005 12/03/2010 Discharger 12/09/1999 None N
146677 NPDES Permit 4 4B192526001 Historical NPDINDSML 99-137 12/09/1999 11/02/2005 Discharger 12/09/1999 None N
135018 NPDES Permit 4 4B192526001 Historical NPDINDSML 94-043 06/13/1994 12/09/1999 Discharger 06/13/1994 None N
134629 NPDES Permit 4 4B192526001 Historical NPDINDSML 88-121 11/28/1988 06/13/1994 Discharger 11/28/1988 None N
Total Regulatory Measures: 9
  
  
  
  
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.
1148476 07/01/2025 CAT1 Settleable Solids Single Sample Maximum limit is 0.3 ml/L and reported value was Violation N eSMR William B. Temple Water Treatment Plant #1 449788 R4-2022-0272 N
1149041 06/03/2025 CAT1 Aluminum, Total Maximum Daily (MDEL) limit is 1000.0 ug/L and reported value was Violation N Report William B. Temple Water Treatment Plant #1 449788 R4-2022-0272 N
1149045 06/30/2025 CAT2 Copper, Total Recoverable Monthly Average limit is 5.3 ug/L and reported value w Violation N Report William B. Temple Water Treatment Plant #1 449788 R4-2022-0272 N
1149044 05/31/2025 CAT2 Copper, Total Recoverable Monthly Average limit is 5.3 ug/L and reported value w Violation N Report William B. Temple Water Treatment Plant #1 449788 R4-2022-0272 N
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: 4
*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
381132 Admin Civil Liability R4-2011-0132-M Expedited Payment Letter for Covina Irrigating Co. NPDINDSML 08/15/2011 Historical
357549 Admin Civil Liability SWB-2008-4-0029 Expedited Payment Letter for Covina Irrigating Co. NPDINDSML 07/15/2009 Historical
437253 Admin Civil Liability R4-2020-0021 ACL R4-2020-0021 for Covina Irrigating Company NPDNONMUNIPRCS 11/20/2020 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: 05/06/2026
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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