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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
25593 Lathrop City City Agency 390 Towne Centre Drive Lathrop, CA 95330 209-941-7220 ckeaten@ci.lathrop.ca.us
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
893456 Manthey Road Bridge Replacement Project San Joaquin 5S Dredge/Fill Site Owner 02/14/2024 None
870843 Lathrop Consolidated Treatment Facility Surface Water Discharge Project San Joaquin 5S Dredge/Fill Site Owner 12/08/2020 None
845673 Central Lathrop Infrastructure Improvements Project San Joaquin 5S Dredge/Fill Site Owner 03/14/2018 None
829622 South Lathrop Regional Outfall Project San Joaquin 5S Dredge/Fill Site Owner 11/03/2016 None
731180 Crossroads San Joaquin 5S Collection_System Owner 12/30/2008 None
631511 Lathrop CS to Manteca WQCF CS San Joaquin 5S Collection_System Owner 04/05/2006 None
630812 Lathrop Consolidated Treatment Facility CS San Joaquin 5S Collection_System Owner 04/03/2006 None
271781 City of Lathrop Consolidated Treatment Facility San Joaquin 5S Wastewater Treatment Facility Owner 09/22/2006 None
260138 San Joaquin Bike Bridge San Joaquin 5S Dredge/Fill Site Owner 06/17/2005 None
242482 Master Plan of Drainage Northe San Joaquin 5S Dredge/Fill Site Owner 06/17/2005 None
236655 Lathrop MS4 Phase II San Joaquin 5S MS4 Owner 03/10/2003 None
236653 Lathrop Industrial WWTP San Joaquin 5S Wastewater Treatment Facility Owner 06/02/2000 None
211839 Bradshaws Crossing Bridge Proj San Joaquin 5S Dredge/Fill Site Owner 06/17/2005 None
Total Related Places: 13
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
648624 City of Lathrop - Utilities Division Organization Division Of (Passive) 12/30/2024 None City Agency
641583 Jonah Sonner Person Data Submitter 09/12/2023 None None
641583 Jonah Sonner Person Data Submitter 09/28/2023 None None
641583 Jonah Sonner Person Data Submitter 02/01/2024 None None
641296 Frank Vallejo Person Legally Responsible Official 12/30/2024 None None
641296 Frank Vallejo Person Data Submitter 08/28/2023 None None
634465 Cyle Moon Person Data Submitter 07/20/2022 None None
622952 Chris Hart Person Data Submitter 03/23/2021 None None
622952 Chris Hart Person Data Submitter 03/25/2021 None None
622951 Cristina Caguiat Person Data Submitter 03/23/2021 None None
560358 Tim McCoy Person Legally Responsible Official 11/03/2016 None None
545167 Michael King Person Legally Responsible Official 02/03/2014 None None
545060 Milton Daley Person Data Submitter 01/24/2014 None None
539815 Dameon Flores Person Data Submitter 05/01/2013 None None
522969 Joseph Reyes Person Legally Responsible Official 02/03/2014 03/25/2021 None
498393 Ryan Bouley Person Legally Responsible Official 02/02/2009 02/11/2013 None
498392 Juan Ochoa Person Data Submitter 02/02/2009 None None
498391 Kirk Cloyd Person Data Submitter 02/02/2009 08/29/2013 None
498390 Gregory Gibson Person Data Submitter 04/11/2022 None None
498390 Gregory Gibson Person Legally Responsible Official 02/02/2009 None None
498386 Stephen Salvatore Person Legally Responsible Official 02/02/2009 03/25/2021 None
57878 Cary Keaten Person Legally Responsible Official 06/02/2000 02/02/2009 None
57878 Cary Keaten Person Legally Responsible Official 04/03/2006 02/02/2009 None
Total Related Parties: 23
  
  
  
  
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?
455830 Enrollee - 401 Certification 5S 5B39CR00401 Active CERFILLEXC 2021-0048-DWQ 03/08/2024 None Discharger 02/14/2024 None N
445985 NPDES Permit 5S 5B39NP00085 Active NPDMUNILRG R5-2022-0004 04/01/2022 None Discharger 12/13/2021 None N
441535 401 Certification 5S 5B39CR00344 Historical CERFILLEXC None 05/17/2021 01/13/2023 Discharger 12/08/2020 None N
440476 Co-Permitee SB 5B391076001 Active SLIC 2020-0015-DWQ 07/09/2020 None Discharger 09/18/2020 None N
438719 Enrollee - WDR 5S 5B39NC00300 Active REC 2016-0068-DDW 06/09/2020 None Discharger 06/16/2020 None N
420064 401 Certification 5S 5B39CR00111 Historical CERFILLEXC None 08/17/2018 12/06/2019 Discharger 03/14/2018 None Y
410070 401 Certification 5S 5B39CR00279 Historical CERFILLEXC None 06/12/2017 10/04/2019 Discharger 11/03/2016 None N
395597 WDR 5S 5B391076001 Historical WDRMUNILRG R5-2016-0028-02 04/21/2016 06/22/2023 Discharger 03/28/2014 None Y
395536 WDR 5S 5B39NC00042 Historical WDRMUNILRG R5-2015-0006 02/05/2015 04/21/2016 Discharger 04/01/2014 None N
329059 WDR 5S 5B39NC00042 Historical WDRMUNILRG R5-2006-0094 09/22/2006 02/04/2015 Discharger 09/22/2006 None N
318685 Enrollee - WDR 5S 5SSO11462 Historical SSOMUNISML 2006-0003-DWQ 01/09/2007 02/16/2023 Discharger 01/09/2007 None N
301803 Enrollee - WDR 5S 5SSO10985 Active SSOMUNISML 2022-0103-DWQ 08/15/2006 None Discharger 04/21/2006 None N
301618 Enrollee - WDR 5S 5SSO10897 Active SSOMUNISML 2022-0103-DWQ 08/15/2006 None Discharger 04/20/2006 None N
194551 Enrollee 5S 5A39NP00029 Historical MNSTW2 2003-0005-DWQ 01/07/2004 06/30/2013 Discharger 09/01/2005 None N
141786 WDR 5S 5B391076001 Historical WDR 94-198 06/24/1994 10/18/2001 Discharger 06/24/1994 None N
140821 WDR 5S 5B391076001 Historical WDR 92-234 12/04/1992 06/23/1994 Discharger 12/04/1992 None N
131871 WDR 5S 5B391076001 Historical WDRMUNILRG 01-251 10/19/2001 04/20/2016 Discharger 10/19/2001 None N
Total Regulatory Measures: 17
  
  
  
  
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.
1143754 04/10/2025 Deficient Monitoring The Recycling Specifications (Section VII.A.1, Table E-6) require a minimum sample frequency of 1/Day for Total Coliform Organisms. On April 10, 2025, the daily Coliform sample was collected at 5:10AM to ensure a sample would be collected prior to a planned shutdown that day (6AM to 2PM) for construction-related purposes. However, the contract laboratory (Fruit Growers Lab [FGL]) is used to the Coliform sample being collected around 8AM each day and has a daily courier route that will deliver the sample to their lab in the afternoon within the 8-hour sample hold time. The lab was not alerted to the change in collection time in advance, FGL's courier did not make an adjustment to the daily route upon receiving the sample and its chain-of-custody (which specifies the sample time), and FGL staff that received the sample at FGL's Stockton facility did not notify the City that the sample was out of hold time when they received it. As a result, the sample was couriered to the lab on the normal schedule delivering in the afternoon, which resulted in the sample being analyzed outside of the required 8-hour hold time. The City did not become aware of this until a later date when reviewing the report. Violation N eSMR City of Lathrop Consolidated Treatment Facility 445985 R5-2022-0004 N
1142515 03/17/2025 CAT2 Chlorine, Total Residual 1-Hour Average (Mean) limit is 0.019 mg/L and reported value was 1.316 mg/L at EFF-001. Violation N eSMR City of Lathrop Consolidated Treatment Facility 445985 R5-2022-0004 Y
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: 2
*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
462745 Admin Civil Liability R5-2025-0504 ACL R5-2025-0504 for Lathrop City NPDMUNILRG 12/16/2025 Historical
461240 Notice of Violation None NOV 06/03/2025 for Lathrop City NPDMUNILRG 06/03/2025 Historical
459991 Notice of Violation None NOV 02/13/2025 for Lathrop City NPDMUNILRG 02/13/2025 Historical
458011 Notice of Violation None NOV 08/09/2024 for Lathrop City NPDMUNILRG 08/09/2024 Historical
457148 Notice of Violation None NOV 06/03/2024 for Lathrop City NPDMUNILRG 06/03/2024 Historical
455909 Notice of Violation None NOV 02/23/2024 for Lathrop City NPDMUNILRG 02/23/2024 Historical
455107 Notice of Violation None NOV 11/28/2023 for Lathrop City NPDMUNILRG 11/28/2023 Historical
406880 13267 Letter None 13267 Letter 03/15/2016 for Lathrop City WDRMUNILRG 03/15/2016 Historical
406879 Notice of Violation None NOV 11/19/2015 Lathrop Industrial WWTP WDRMUNILRG 03/15/2016 Historical
388084 Notice of Violation None NOV 10-APR-12 for LATHROP CITY SSOMUNISML 04/10/2012 Active
388048 Notice of Violation None NOV 10-APR-12 for LATHROP CITY SSOMUNISML 04/10/2012 Active
388044 Notice of Violation None NOV 10-APR-12 for LATHROP CITY SSOMUNISML 04/10/2012 Active
382482 Notice of Violation None NOV 12/19/2011 for Lathrop City, Lathrop CS to Manteca WQCF CS SSOMUNISML 12/19/2011 Historical
351185 Oral Communication None phone call 08/11/2008 for City of Lathrop WDR 08/22/2008 Historical
254413 Notice of Violation None NOV 10/29/2004 for Lathrop City, Lathrop Industrial WWTP WDR 10/29/2004 Historical
Total Enforcement Actions: 15
  
  
  
  
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: 01/08/2026
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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