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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
594141 Linda Orozco 3512 Michelson Drive Irvine, CA 92612 949-453-5707 orozcol@irwd.com
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
Total Related Places: 0
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
499770 Irvine Ranch Water District Organization Data Submitter 01/18/2019 None Special District
499770 Irvine Ranch Water District Organization Data Submitter 07/20/2022 None Special District
499770 Irvine Ranch Water District Organization Data Submitter 06/20/2019 None Special District
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?
Total Regulatory Measures: 0
  
  
  
  
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.
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: 0
*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
Total Enforcement Actions: 0
  
  
  
  
Expand/Contract Enforcement Actions
Regulatory Measures linked to Related Parties
Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status
458795 Irvine Ranch Water District Enrollee - 401 Certification CERFILLEXC 11/22/2024 Historical
458795 Irvine Ranch Water District Enrollee - 401 Certification CERFILLEXC 11/22/2024 Historical
458795 Irvine Ranch Water District Enrollee - 401 Certification CERFILLEXC 11/22/2024 Historical
458602 Irvine Ranch Water District Enrollee - 401 Certification CERFILLEXC 11/13/2024 Active
458602 Irvine Ranch Water District Enrollee - 401 Certification CERFILLEXC 11/13/2024 Active
458602 Irvine Ranch Water District Enrollee - 401 Certification CERFILLEXC 11/13/2024 Active
457980 Irvine Ranch Water District 401 Certification CERFILLEXC 02/21/2025 Active
457980 Irvine Ranch Water District 401 Certification CERFILLEXC 02/21/2025 Active
457980 Irvine Ranch Water District 401 Certification CERFILLEXC 02/21/2025 Active
455413 Irvine Ranch Water District Enrollee - 401 Certification CERFILLEXC 01/11/2024 Active
455413 Irvine Ranch Water District Enrollee - 401 Certification CERFILLEXC 01/11/2024 Active
455413 Irvine Ranch Water District Enrollee - 401 Certification CERFILLEXC 01/11/2024 Active
451099 Irvine Ranch Water District Enrollee - 401 Certification CERFILLEXC 01/31/2023 Historical
451099 Irvine Ranch Water District Enrollee - 401 Certification CERFILLEXC 01/31/2023 Historical
451099 Irvine Ranch Water District Enrollee - 401 Certification CERFILLEXC 01/31/2023 Historical
447102 Irvine Ranch Water District Enrollee - 401 Certification CERFILLEXC 04/18/2022 Historical
447102 Irvine Ranch Water District Enrollee - 401 Certification CERFILLEXC 04/18/2022 Historical
447102 Irvine Ranch Water District Enrollee - 401 Certification CERFILLEXC 04/18/2022 Historical
442012 Irvine Ranch Water District 401 Certification CERFILLEXC 08/27/2021 Active
442012 Irvine Ranch Water District 401 Certification CERFILLEXC 08/27/2021 Active
442012 Irvine Ranch Water District 401 Certification CERFILLEXC 08/27/2021 Active
440351 Irvine Ranch Water District Co-Permitee SLIC 07/09/2020 Active
440351 Irvine Ranch Water District Co-Permitee SLIC 07/09/2020 Active
440351 Irvine Ranch Water District Co-Permitee SLIC 07/09/2020 Active
417050 Irvine Ranch Water District Enrollee - 401 Certification CERFILLEXC 03/05/2017 Historical
417050 Irvine Ranch Water District Enrollee - 401 Certification CERFILLEXC 03/05/2017 Historical
417050 Irvine Ranch Water District Enrollee - 401 Certification CERFILLEXC 03/05/2017 Historical
417016 Irvine Ranch Water District Enrollee - NPDES NPDMUNIOTH 07/01/2016 Active
417016 Irvine Ranch Water District Enrollee - NPDES NPDMUNIOTH 07/01/2016 Active
417016 Irvine Ranch Water District Enrollee - NPDES NPDMUNIOTH 07/01/2016 Active
402182 Irvine Ranch Water District NPDES Permit NPDMUNILRG 07/01/2015 Active
402182 Irvine Ranch Water District NPDES Permit NPDMUNILRG 07/01/2015 Active
402182 Irvine Ranch Water District NPDES Permit NPDMUNILRG 07/01/2015 Active
392057 Irvine Ranch Water District Enrollee - 401 Certification CERFILLEXC 01/14/2011 Historical
392057 Irvine Ranch Water District Enrollee - 401 Certification CERFILLEXC 01/14/2011 Historical
392057 Irvine Ranch Water District Enrollee - 401 Certification CERFILLEXC 01/14/2011 Historical
392056 Irvine Ranch Water District Enrollee - 401 Certification CERFILLEXC 01/16/2011 Historical
392056 Irvine Ranch Water District Enrollee - 401 Certification CERFILLEXC 01/16/2011 Historical
392056 Irvine Ranch Water District Enrollee - 401 Certification CERFILLEXC 01/16/2011 Historical
386727 Irvine Ranch Water District 401 Certification CERFILLEXC 07/23/2003 Historical
386727 Irvine Ranch Water District 401 Certification CERFILLEXC 07/23/2003 Historical
386727 Irvine Ranch Water District 401 Certification CERFILLEXC 07/23/2003 Historical
386668 Irvine Ranch Water District 401 Certification CERFILLEXC 09/22/2006 Historical
386668 Irvine Ranch Water District 401 Certification CERFILLEXC 09/22/2006 Historical
386668 Irvine Ranch Water District 401 Certification CERFILLEXC 09/22/2006 Historical
386655 Irvine Ranch Water District 401 Certification CERFILLEXC 02/07/2007 Historical
386655 Irvine Ranch Water District 401 Certification CERFILLEXC 02/07/2007 Historical
386655 Irvine Ranch Water District 401 Certification CERFILLEXC 02/07/2007 Historical
386637 Irvine Ranch Water District 401 Certification CERFILLEXC 02/07/2007 Historical
386637 Irvine Ranch Water District 401 Certification CERFILLEXC 02/07/2007 Historical
386637 Irvine Ranch Water District 401 Certification CERFILLEXC 02/07/2007 Historical
386593 Irvine Ranch Water District 401 Certification CERFILLEXC 09/06/2011 Historical
386593 Irvine Ranch Water District 401 Certification CERFILLEXC 09/06/2011 Historical
386593 Irvine Ranch Water District 401 Certification CERFILLEXC 09/06/2011 Historical
386449 Irvine Ranch Water District 401 Certification CERFILLEXC 12/02/2008 Historical
386449 Irvine Ranch Water District 401 Certification CERFILLEXC 12/02/2008 Historical
386449 Irvine Ranch Water District 401 Certification CERFILLEXC 12/02/2008 Historical
386388 Irvine Ranch Water District 401 Certification CERFILLEXC 02/08/2007 Historical
386388 Irvine Ranch Water District 401 Certification CERFILLEXC 02/08/2007 Historical
386388 Irvine Ranch Water District 401 Certification CERFILLEXC 02/08/2007 Historical
386384 Irvine Ranch Water District 401 Certification CERFILLEXC 11/30/2005 Historical
386384 Irvine Ranch Water District 401 Certification CERFILLEXC 11/30/2005 Historical
386384 Irvine Ranch Water District 401 Certification CERFILLEXC 11/30/2005 Historical
386357 Irvine Ranch Water District 401 Certification CERFILLEXC 03/18/2004 Historical
386357 Irvine Ranch Water District 401 Certification CERFILLEXC 03/18/2004 Historical
386357 Irvine Ranch Water District 401 Certification CERFILLEXC 03/18/2004 Historical
386347 Irvine Ranch Water District 401 Certification CERFILLEXC 02/11/2004 Historical
386347 Irvine Ranch Water District 401 Certification CERFILLEXC 02/11/2004 Historical
386347 Irvine Ranch Water District 401 Certification CERFILLEXC 02/11/2004 Historical
385910 Irvine Ranch Water District 401 Certification CERFILLEXC 08/13/2002 Historical
385910 Irvine Ranch Water District 401 Certification CERFILLEXC 08/13/2002 Historical
385910 Irvine Ranch Water District 401 Certification CERFILLEXC 08/13/2002 Historical
385845 Irvine Ranch Water District 401 Certification CERFILLEXC 07/17/2001 Historical
385845 Irvine Ranch Water District 401 Certification CERFILLEXC 07/17/2001 Historical
385845 Irvine Ranch Water District 401 Certification CERFILLEXC 07/17/2001 Historical
380819 Irvine Ranch Water District 401 Certification CERFILLEXC 08/20/2009 Historical
380819 Irvine Ranch Water District 401 Certification CERFILLEXC 08/20/2009 Historical
380819 Irvine Ranch Water District 401 Certification CERFILLEXC 08/20/2009 Historical
380470 Irvine Ranch Water District 401 Certification CERFILLEXC None Active
380470 Irvine Ranch Water District 401 Certification CERFILLEXC None Active
380470 Irvine Ranch Water District 401 Certification CERFILLEXC None Active
380468 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
380468 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
380468 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
379851 Irvine Ranch Water District 401 Certification CERFILLEXC None Active
379851 Irvine Ranch Water District 401 Certification CERFILLEXC None Active
379851 Irvine Ranch Water District 401 Certification CERFILLEXC None Active
373738 Irvine Ranch Water District Enrollee - NPDES NPDNONMUNIPRCS 05/18/2010 Active
373738 Irvine Ranch Water District Enrollee - NPDES NPDNONMUNIPRCS 05/18/2010 Active
373738 Irvine Ranch Water District Enrollee - NPDES NPDNONMUNIPRCS 05/18/2010 Active
349491 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
349491 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
349491 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
349444 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
349444 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
349444 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
349442 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
349442 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
349442 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
348856 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
348856 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
348856 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
348467 Irvine Ranch Water District NPDES Permit NPDMUNILRG 11/30/2007 Historical
348467 Irvine Ranch Water District NPDES Permit NPDMUNILRG 11/30/2007 Historical
348467 Irvine Ranch Water District NPDES Permit NPDMUNILRG 11/30/2007 Historical
347054 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
347054 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
347054 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
339385 Irvine Ranch Water District Enrollee SSOMUNISML 05/02/2006 Active
339385 Irvine Ranch Water District Enrollee SSOMUNISML 05/02/2006 Active
339385 Irvine Ranch Water District Enrollee SSOMUNISML 05/02/2006 Active
338949 Irvine Ranch Water District Enrollee SSOMUNILRG 12/26/2007 Active
338949 Irvine Ranch Water District Enrollee SSOMUNILRG 12/26/2007 Active
338949 Irvine Ranch Water District Enrollee SSOMUNILRG 12/26/2007 Active
338942 Irvine Ranch Water District Enrollee SSOMUNISML 12/26/2007 Active
338942 Irvine Ranch Water District Enrollee SSOMUNISML 12/26/2007 Active
338942 Irvine Ranch Water District Enrollee SSOMUNISML 12/26/2007 Active
308686 Irvine Ranch Water District Co-Permitee WDR 04/26/2002 Historical
308686 Irvine Ranch Water District Co-Permitee WDR 04/26/2002 Historical
308686 Irvine Ranch Water District Co-Permitee WDR 04/26/2002 Historical
300551 Irvine Ranch Water District Enrollee SSOMUNILRG 11/17/2006 Active
300551 Irvine Ranch Water District Enrollee SSOMUNILRG 11/17/2006 Active
300551 Irvine Ranch Water District Enrollee SSOMUNILRG 11/17/2006 Active
298936 Irvine Ranch Water District Enrollee SSOMUNILRG 11/17/2006 Active
298936 Irvine Ranch Water District Enrollee SSOMUNILRG 11/17/2006 Active
298936 Irvine Ranch Water District Enrollee SSOMUNILRG 11/17/2006 Active
260458 Irvine Ranch Water District Letter WDR None Historical
260458 Irvine Ranch Water District Letter WDR None Historical
260458 Irvine Ranch Water District Letter WDR None Historical
260409 Irvine Ranch Water District Letter WDR None Historical
260409 Irvine Ranch Water District Letter WDR None Historical
260409 Irvine Ranch Water District Letter WDR None Historical
260399 Irvine Ranch Water District Letter WDR None Historical
260399 Irvine Ranch Water District Letter WDR None Historical
260399 Irvine Ranch Water District Letter WDR None Historical
260396 Irvine Ranch Water District Letter WDR None Historical
260396 Irvine Ranch Water District Letter WDR None Historical
260396 Irvine Ranch Water District Letter WDR None Historical
260340 Irvine Ranch Water District Letter WDR None Historical
260340 Irvine Ranch Water District Letter WDR None Historical
260340 Irvine Ranch Water District Letter WDR None Historical
260339 Irvine Ranch Water District Letter WDR None Historical
260339 Irvine Ranch Water District Letter WDR None Historical
260339 Irvine Ranch Water District Letter WDR None Historical
260328 Irvine Ranch Water District Letter WDR None Historical
260328 Irvine Ranch Water District Letter WDR None Historical
260328 Irvine Ranch Water District Letter WDR None Historical
260321 Irvine Ranch Water District Letter WDR None Historical
260321 Irvine Ranch Water District Letter WDR None Historical
260321 Irvine Ranch Water District Letter WDR None Historical
260300 Irvine Ranch Water District Letter NPDESWW None Historical
260300 Irvine Ranch Water District Letter NPDESWW None Historical
260300 Irvine Ranch Water District Letter NPDESWW None Historical
260237 Irvine Ranch Water District Letter WDR None Historical
260237 Irvine Ranch Water District Letter WDR None Historical
260237 Irvine Ranch Water District Letter WDR None Historical
260202 Irvine Ranch Water District Letter WDR None Historical
260202 Irvine Ranch Water District Letter WDR None Historical
260202 Irvine Ranch Water District Letter WDR None Historical
260198 Irvine Ranch Water District Letter WDR None Historical
260198 Irvine Ranch Water District Letter WDR None Historical
260198 Irvine Ranch Water District Letter WDR None Historical
260197 Irvine Ranch Water District Letter WDR None Historical
260197 Irvine Ranch Water District Letter WDR None Historical
260197 Irvine Ranch Water District Letter WDR None Historical
260028 Irvine Ranch Water District Letter NPDESWW 03/21/1990 Historical
260028 Irvine Ranch Water District Letter NPDESWW 03/21/1990 Historical
260028 Irvine Ranch Water District Letter NPDESWW 03/21/1990 Historical
259340 Irvine Ranch Water District Letter NPDESWW None Historical
259340 Irvine Ranch Water District Letter NPDESWW None Historical
259340 Irvine Ranch Water District Letter NPDESWW None Historical
214107 Irvine Ranch Water District Enrollee NPDNONMUNIPRCS 10/17/2002 Historical
214107 Irvine Ranch Water District Enrollee NPDNONMUNIPRCS 10/17/2002 Historical
214107 Irvine Ranch Water District Enrollee NPDNONMUNIPRCS 10/17/2002 Historical
213954 Irvine Ranch Water District Enrollee SSOMUNILRG 05/09/1996 Active
213954 Irvine Ranch Water District Enrollee SSOMUNILRG 05/09/1996 Active
213954 Irvine Ranch Water District Enrollee SSOMUNILRG 05/09/1996 Active
206324 Irvine Ranch Water District Enrollee - NPDES NPDNONMUNIPRCS 04/20/2005 Active
206324 Irvine Ranch Water District Enrollee - NPDES NPDNONMUNIPRCS 04/20/2005 Active
206324 Irvine Ranch Water District Enrollee - NPDES NPDNONMUNIPRCS 04/20/2005 Active
205889 Irvine Ranch Water District Enrollee NPDNONMUNIPRCS 06/14/1985 Historical
205889 Irvine Ranch Water District Enrollee NPDNONMUNIPRCS 06/14/1985 Historical
205889 Irvine Ranch Water District Enrollee NPDNONMUNIPRCS 06/14/1985 Historical
166348 Irvine Ranch Water District 401 Certification CERFILLEXC 11/29/2000 Historical
166348 Irvine Ranch Water District 401 Certification CERFILLEXC 11/29/2000 Historical
166348 Irvine Ranch Water District 401 Certification CERFILLEXC 11/29/2000 Historical
165644 Irvine Ranch Water District 401 Certification CERFILLEXC 10/11/2000 Historical
165644 Irvine Ranch Water District 401 Certification CERFILLEXC 10/11/2000 Historical
165644 Irvine Ranch Water District 401 Certification CERFILLEXC 10/11/2000 Historical
161185 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
161185 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
161185 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
161184 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
161184 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
161184 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
159994 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
159994 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
159994 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
159993 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
159993 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
159993 Irvine Ranch Water District 401 Certification CERFILLEXC None Historical
140835 Irvine Ranch Water District WDR WDR 10/11/1996 Historical
140835 Irvine Ranch Water District WDR WDR 10/11/1996 Historical
140835 Irvine Ranch Water District WDR WDR 10/11/1996 Historical
140507 Irvine Ranch Water District NPDES Permit NPDMUNILRG 04/17/1998 Historical
140507 Irvine Ranch Water District NPDES Permit NPDMUNILRG 04/17/1998 Historical
140507 Irvine Ranch Water District NPDES Permit NPDMUNILRG 04/17/1998 Historical
140426 Irvine Ranch Water District NPDES Permit NPDESWW 10/14/1994 Historical
140426 Irvine Ranch Water District NPDES Permit NPDESWW 10/14/1994 Historical
140426 Irvine Ranch Water District NPDES Permit NPDESWW 10/14/1994 Historical
140425 Irvine Ranch Water District NPDES Permit NPDMUNILRG 10/14/1994 Historical
140425 Irvine Ranch Water District NPDES Permit NPDMUNILRG 10/14/1994 Historical
140425 Irvine Ranch Water District NPDES Permit NPDMUNILRG 10/14/1994 Historical
139876 Irvine Ranch Water District WDR WDR 02/08/1991 Historical
139876 Irvine Ranch Water District WDR WDR 02/08/1991 Historical
139876 Irvine Ranch Water District WDR WDR 02/08/1991 Historical
139875 Irvine Ranch Water District Reclamation Requirements REC 06/07/1991 Historical
139875 Irvine Ranch Water District Reclamation Requirements REC 06/07/1991 Historical
139875 Irvine Ranch Water District Reclamation Requirements REC 06/07/1991 Historical
139874 Irvine Ranch Water District NPDES Permit NPDMUNILRG 06/07/1991 Historical
139874 Irvine Ranch Water District NPDES Permit NPDMUNILRG 06/07/1991 Historical
139874 Irvine Ranch Water District NPDES Permit NPDMUNILRG 06/07/1991 Historical
139202 Irvine Ranch Water District NPDES Permit NPDESWW 02/14/1986 Historical
139202 Irvine Ranch Water District NPDES Permit NPDESWW 02/14/1986 Historical
139202 Irvine Ranch Water District NPDES Permit NPDESWW 02/14/1986 Historical
138719 Irvine Ranch Water District NPDES Permit NPDNONMUNIPRCS 06/14/1985 Historical
138719 Irvine Ranch Water District NPDES Permit NPDNONMUNIPRCS 06/14/1985 Historical
138719 Irvine Ranch Water District NPDES Permit NPDNONMUNIPRCS 06/14/1985 Historical
138578 Irvine Ranch Water District WDR WDR 09/11/1981 Historical
138578 Irvine Ranch Water District WDR WDR 09/11/1981 Historical
138578 Irvine Ranch Water District WDR WDR 09/11/1981 Historical
137871 Irvine Ranch Water District WDR NPDESWW 09/11/1981 Historical
137871 Irvine Ranch Water District WDR NPDESWW 09/11/1981 Historical
137871 Irvine Ranch Water District WDR NPDESWW 09/11/1981 Historical
136935 Irvine Ranch Water District NPDES Permit NPDMUNILRG 04/09/1976 Historical
136935 Irvine Ranch Water District NPDES Permit NPDMUNILRG 04/09/1976 Historical
136935 Irvine Ranch Water District NPDES Permit NPDMUNILRG 04/09/1976 Historical
132117 Irvine Ranch Water District WDR WDR 04/26/2002 Historical
132117 Irvine Ranch Water District WDR WDR 04/26/2002 Historical
132117 Irvine Ranch Water District WDR WDR 04/26/2002 Historical
131681 Irvine Ranch Water District WDR WDRMUNIOTH 07/19/2002 Historical
131681 Irvine Ranch Water District WDR WDRMUNIOTH 07/19/2002 Historical
131681 Irvine Ranch Water District WDR WDRMUNIOTH 07/19/2002 Historical
131152 Irvine Ranch Water District NPDES Permit NPDMUNILRG 12/19/2001 Historical
131152 Irvine Ranch Water District NPDES Permit NPDMUNILRG 12/19/2001 Historical
131152 Irvine Ranch Water District NPDES Permit NPDMUNILRG 12/19/2001 Historical
Total Regulatory Measures linked to Related Parties: 246
  
  
The current report was generated with data as of: 10/28/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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