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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
516017 Santa Clarita Valley SD of Los Angeles Cnty Special District Po Box 4998 Whittier, CA 90607-4998 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
879431 Soledad Canyon Trunk Sewer Section 4 Project Los Angeles 4 Wastewater Treatment Facility Owner and Operator 02/16/2022 None
270849 Valencia WRP Los Angeles 4 Wastewater Treatment Facility Owner 06/05/2009 None
260494 Saugus Water Reclamation Plant Los Angeles 4 Wastewater Treatment Facility Owner 06/04/2009 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
649604 Nan Natanom-Harrold Person Data Submitter 03/10/2025 None None
648692 Margott Hinostroza Person Data Submitter 01/15/2025 None None
646863 Lindsay O'Donahue Person Data Submitter 12/12/2024 None None
642265 Michael Flores Person Data Submitter 10/31/2023 None None
640467 Marisol Cira Person Data Submitter 07/10/2023 None None
639812 Vincenzo Ciancia Person Data Submitter 06/15/2023 None None
636288 Syljohn Estil Person Data Submitter 11/22/2022 None None
630002 Preeti Ghuman Person Data Submitter 01/11/2022 None None
627289 Dan Vukovic Person Data Submitter 05/10/2022 None None
627289 Dan Vukovic Person Data Submitter 07/08/2022 None None
626784 Sarah Miles Person Data Submitter 08/11/2021 None None
626562 Thomas Parker Person Data Submitter 10/04/2022 None None
626009 James Grunwald Person Data Submitter 07/06/2021 None None
621839 Rita Chang Person Data Submitter 02/05/2021 None None
610975 Elizabeth Roswell Person Data Submitter 07/14/2020 None None
609761 Holly Jones Person Data Submitter 06/02/2020 None None
601637 Stefan Szalkowski Person Data Submitter 09/03/2019 None None
598636 Qin Liu Person Data Submitter 06/10/2019 None None
598636 Qin Liu Person Data Submitter 06/14/2019 None None
595992 Katie Marjanovic Person Legally Responsible Official 12/02/2024 None None
595992 Katie Marjanovic Person Data Submitter 10/05/2020 None None
595992 Katie Marjanovic Person Data Submitter 09/11/2020 None None
592486 Suzanne Brown Person Data Submitter 04/18/2019 None None
580129 Mandy Ng Person Data Submitter 08/29/2018 None None
579020 Jessica Lau Person Data Submitter 06/12/2018 None None
569529 Ryan Honda Person Data Submitter 11/22/2017 None None
562444 John Shay Person Data Submitter 12/27/2022 None None
562298 Steven Ono Person Data Submitter 02/01/2017 05/10/2018 None
562298 Steven Ono Person Data Submitter 01/31/2017 05/10/2018 None
559683 Monisha Brown Person Data Submitter 11/08/2016 None None
558391 Nicholas Wiehardt Person Data Submitter 08/12/2016 None None
556260 Naoko Munakata Person Legally Responsible Official 06/23/2016 None None
555508 Donald Ton Person Data Submitter 04/21/2016 None None
550383 Christina Pottios Person Data Submitter 07/15/2015 None None
550152 Misty Brown Person Data Submitter 05/18/2020 None None
550106 Joshua Westfall Person Data Submitter 07/29/2016 None None
546435 Lysa Gaboudian Person Legally Responsible Official 04/21/2016 None None
532401 Martha Tremblay Person Legally Responsible Official 05/21/2019 None None
528546 Russell Yoshida Person Data Submitter 09/16/2011 None None
526480 George Gallis Person Data Submitter 04/05/2011 12/08/2017 None
522299 Jodie Lanza Person Data Submitter 05/05/2010 None None
522298 Brittany Liu Person Data Submitter 05/05/2010 05/19/2017 None
522297 Andrew Hall Person Legally Responsible Official 05/28/2015 04/06/2017 None
522297 Andrew Hall Person Data Submitter 05/05/2010 05/28/2015 None
522296 Francisco Guerrero Person Data Submitter 05/05/2010 None None
522295 Shannon Bishop Person Data Submitter 05/05/2010 None None
522294 Karen Elliott Person Data Submitter 05/05/2010 None None
522293 Esther Cantu Person Data Submitter 05/05/2010 None None
522290 Kurt Rinaldi Person Data Submitter 05/05/2010 08/12/2015 None
521997 Craig Cornelius Person Data Submitter 04/07/2010 None None
521733 Ken Hoffman Person Data Submitter 05/05/2010 None None
521731 Peter Navas Person Data Submitter 05/05/2010 None None
521719 Abder Yacoby Person Data Submitter 05/05/2010 None None
521717 Gary Salva Person Data Submitter 05/05/2010 02/08/2013 None
521628 Mike Sullivan Person Legally Responsible Official 03/16/2010 None None
467638 Kristy Monji Person Data Submitter 07/14/2011 None None
400137 Susan Bremser Person Data Submitter 05/05/2010 10/31/2012 None
400137 Susan Bremser Person Data Submitter 01/10/2012 12/04/2020 None
314909 Nicholas Smal Person Data Submitter 12/06/2017 None None
314899 Christian Alarcon Person Legally Responsible Official 02/16/2022 None None
308868 Thomas Weiland Person Owner Contact 08/09/2009 None None
308868 Thomas Weiland Person Legally Responsible Official 03/16/2010 02/08/2013 None
303050 Ann Heil Person Data Submitter 09/26/2012 07/01/2021 None
Total Related Parties: 63
  
  
  
  
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?
442544 NPDES Permit 4 4A190107021 Active NPDMUNILRG R4-2022-0175 07/01/2022 None Discharger 03/10/2021 None N
440300 Co-Permitee SB 4A190107023 Active SLIC 2020-0015-DWQ 07/09/2020 None Discharger 09/18/2020 None N
440299 Co-Permitee SB 4A190107021 Active SLIC 2020-0015-DWQ 07/09/2020 None Discharger 09/18/2020 None N
435564 NPDES Permit 4 4A190107023 Active NPDMUNILRG R4-2022-0174 07/01/2022 None Discharger 11/18/2019 None N
396158 NPDES Permit 4 4A190107021 Historical NPDMUNILRG R4-2015-0072 05/03/2015 06/30/2022 Discharger 05/09/2014 None N
395514 NPDES Permit 4 4A190107023 Historical NPDMUNILRG R4-2015-0071 05/03/2015 06/30/2022 Discharger 03/28/2014 None N
389840 13267 Letter (Non-Enforcement) 4 4A190107023 Historical NPDMUNILRG R4-2009-0074 01/30/2013 01/31/2013 Discharger 04/11/2013 None N
389837 13267 Letter (Non-Enforcement) 4 4A190107021 Historical NPDMUNILRG R4-2009-0075 01/30/2013 01/31/2013 Discharger 04/11/2013 None N
381323 Letter 4 4A190107021 Historical NPDMUNILRG R4-2009-0075 09/08/2011 09/09/2011 Discharger 06/04/2009 None N
369513 NPDES Permit 4 4A190107023 Historical NPDMUNILRG R4-2009-0074 07/24/2009 05/02/2015 Discharger 08/04/2009 None Y
369505 NPDES Permit 4 4A190107021 Historical NPDMUNILRG R4-2009-0075 07/24/2009 05/02/2015 Discharger 06/04/2009 None N
192886 Enrollee - NPDES 4 4A196000102 Active NPDNONMUNIPRCS R4-2018-0125 07/16/1993 None Discharger 06/05/2009 None N
Total Regulatory Measures: 12
  
  
  
  
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.
1153174 01/24/2026 Deficient Monitoring Per Sections 3.1 and 4.1 of the MRP, influent and effluent samples shall be analyzed weekly for biochemical oxygen demand (BOD). Influent and effluent samples were collected on January 20, but the BOD results were invalidated due to a laboratory analyst error. Make-up samples were collected on February 3, and the influent and effluent BOD results will be included in the February NPDES compliance monitoring report. To prevent this issue from reoccurring, analysts were reminded to follow the laboratory's standard operating procedures for BOD analysis. Violation N eSMR Valencia WRP 435564 R4-2022-0174 N
1149348 08/05/2025 Deficient Monitoring Per Section 8.1 of the MRP, receiving water samples from receiving water monitoring stations RSW-001U (R-C), RSW-002D (R-D), and RSW-003D (R-E) shall be analyzed monthly for settleable solids. On August 5, receiving water samples were collected from each monitoring station and successfully analyzed for settleable solids; however, the settleable solids results were not saved during data entry into the laboratory information management system (LIMS). Because settleable solid results are entered directly into LIMS, there is no physical record of the August 5 results. Make-up samples were collected on September 18, and the results will be included in the September NPDES compliance monitoring report. To prevent reoccurrence of this issue, laboratory analysts have been reminded to ensure all data entries are properly saved in LIMS. Violation N eSMR Valencia WRP 435564 R4-2022-0174 N
1148311 07/29/2025 Deficient Monitoring Per Sections 3.1 and 4.1 of the MRP, influent and effluent samples shall be analyzed weekly for biochemical oxygen demand (BOD, 5-day at 20° Celsius). The influent and effluent samples collected on July 29 were invalidated due to a laboratory analyst error affecting the analytical QA/QC samples. Therefore, there are no BOD results for influent and effluent the week of July 29. Make-up samples were collected on August 6 and will be reported in the August monthly NPDES monitoring report. To prevent this issue from reoccurring, laboratory staff were reminded to review and follow all method standard operating procedures (SOPs). Violation N eSMR Saugus Water Reclamation Plant 442544 R4-2022-0175 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: 3
*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
429363 Time Schedule Order R4-2019-0056 TSO R4-2019-0056 for Santa Clarita Valley SD of Los Angeles Cnty NPDMUNILRG 05/09/2019 Historical
429357 Time Schedule Order R4-2019-0055 TSO R4-2019-0055 for Santa Clarita Valley SD of Los Angeles Cnty NPDMUNILRG 05/09/2019 Historical
388286 Admin Civil Liability R4-2012-0160 ACL R4-2012-0160 for Santa Clarita Valley SD of Los Angeles Cnty NPDMUNILRG 06/28/2013 Historical
386392 Notice of Violation None NOV 05/27/2011 for Santa Clarita Valley Sanitation District of Los Angeles County NPDMUNILRG 05/27/2011 Historical
386391 Notice of Violation None NOV 05/27/2011 for Santa Clarita Valley Sanitation District of Los Angeles County NPDMUNILRG 05/27/2011 Historical
Total Enforcement Actions: 5
  
  
  
  
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: 05/20/2026
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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