General Information Party ID Party Name Party Classification Mailing Address Work Phone Email/Website 499770 Irvine Ranch Water District Special District Po Box 57000 Irvine, CA 92619-7000 949-457-8874(+) uk@irwd.com(+) Related Places Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date 891762 Santiago Creek Dam Outlet Tower and Spillway Improvements Geotechnical Investiga Orange 8 Dredge/Fill Site Owner 01/02/2024 null 886043 Lake Forest Woods Sewer Emergency Repairs Orange 8 Dredge/Fill Site Owner 02/09/2023 null 880132 San Diego Creek Pothole Borings Project Orange 8 Dredge/Fill Site Owner 03/24/2022 null 873454 Williams Canyon Pipeline Protection Project Orange 8 Dredge/Fill Site Owner 04/08/2021 null 871763 Baker Pipeline Repair and Replacement in Reach 1U through Santiago Creek Project Orange 8 Dredge/Fill Site Owner 01/25/2021 null 841513 Serrano Creek Outlet Structure Repair Orange 8 Dredge/Fill Site Owner 11/13/2017 null 796716 Santiago Canyon, Santiago Creek, Orange Cnty Orange 8 Dredge/Fill Site Owner 07/11/2013 null 796715 Santiago Canyon, Modjeska Canyon Wash, Orange Cnty Orange 8 Dredge/Fill Site Owner 07/11/2013 null 784420 San Joaquin Marsh Mitigation Site Maintenance/ Modifications Orange 8 Dredge/Fill Site Owner 07/31/2012 null 784343 Planning Area 6 Orange 8 Dredge/Fill Site Owner 07/30/2012 null 784324 Cienega Filtration Project Orange 8 Dredge/Fill Site Owner 07/30/2012 null 784306 IRWD Natural Treatment System #56 Orange 8 Dredge/Fill Site Owner 07/30/2012 null 784211 Cienega Infiltration Gallery & Discharge Structure Orange 8 Dredge/Fill Site Owner 07/26/2012 null 783920 Vista Verde Creek Crossing Repair Orange 8 Dredge/Fill Site Owner 07/23/2012 null 783779 San Diego Creek NTS' 26, 55, and 64 Orange 8 Dredge/Fill Site Owner 07/19/2012 null 783777 Orchard Hills Reservoir Orange 8 Dredge/Fill Site Owner 07/19/2012 null 783750 University/Campus Sewer Rehabilitation Orange 8 Dredge/Fill Site Owner 07/19/2012 null 783740 Basin 2 and 3 in San Diego Creek Orange 8 Dredge/Fill Site Owner 07/19/2012 null 782972 Quail Hills Zone 384 Orange 8 Dredge/Fill Site Owner 07/05/2012 null 782874 Sand Canyon Wall Construction Orange 8 Dredge/Fill Site Owner 07/03/2012 null 773723 NTS Site 62 and SAMS Projects Orange 8 Dredge/Fill Site Owner 12/05/2011 null 769760 North Carlson Pond Orange 8 Dredge/Fill Site Owner 08/15/2011 null 758391 Los Alisos WD WWTP Orange 8 Wastewater Treatment Facility None null null 738388 San Diego Creek Watershed Natural Treatment System Orange 8 Dredge/Fill Site Operator 06/02/2009 null 723198 Natural Treatment System 56 (NTS 56) Orange 8 Dredge/Fill Site Operator 07/22/2008 null 723196 Natural Treatment System 53 (NTS 53) Orange 8 Dredge/Fill Site Operator 07/22/2008 null 723193 Natural Treatment System 26 (NTS 26) Orange 8 Dredge/Fill Site None null null 719549 Serrano Creek Sewer Line, El Toro Orange 8 Dredge/Fill Site None null null 710955 IRWD - OCSD Regional 2 CS Orange 8 Collection_System Owner 01/09/2008 null 710337 IRWD - OCSD Regional 1 CS Orange 8 Collection_System Owner 12/26/2007 null 710322 IRWD - El Toro CS Orange 9 Collection_System Owner 12/26/2007 null 651318 Natural Treatment System 67 (NTS 67, Cienega Filtration) Orange 8 Dredge/Fill Site Operator 05/09/2008 null 651305 Natural Treatment System 55 (NTS 55) Orange 8 Dredge/Fill Site Owner 05/09/2008 null 650694 Natural Treatment System 64 (NTS 64) Orange 8 Dredge/Fill Site Owner 05/09/2008 null 631606 Los Alisos WRP CS Orange 9 Collection_System Owner 03/15/1996 null 259227 STP,Wetlands Demo Project Orange 8 Facility Owner 08/31/1994 null 259156 Michelson WWRF Orange 8 Wastewater Treatment Facility Owner and Operator 08/19/1996 null 259156 Michelson WWRF Orange 8 Wastewater Treatment Facility Owner 09/18/2020 null 256417 Michelson WRP CS Orange 8 Collection_System Owner 04/26/2002 null 251901 Reclam Prod-User Orange 8 Facility Owner 09/11/1981 null 232693 R9 Irvine Ranch WD Drinking Water System Discharges Orange 9 Utility Structure Owner 10/15/2002 null 222695 Emergency Disch.-Reclaimed Wat Orange 8 Facility Owner 09/11/1981 null 220703 Dredge,Irvine Lake Orange 8 Facility Owner 02/08/1991 null 220044 Dewatering,STP Orange 8 Facility Owner 02/14/1986 null 219938 Dewatering,Within Newport Bay Watershed-IRWD Orange 8 Utility Structure Owner 07/09/2004 null 219878 Dewatering Sites Outside of Newport Bay Watershed-IRWD Orange 8 Utility Structure Owner and Operator 06/08/1995 null 216986 Carlson Marsh Orange 8 Dredge/Fill Site Owner 01/01/1997 null 203063 401 Cert-So. Irvine Reg. Fac. Orange 8 Dredge/Fill Site Owner 11/19/1999 null 203054 401 Cert-Shady Canyon Ck Orange 8 Dredge/Fill Site Owner 09/23/1999 null 203017 401 Cert-Santiago Ck. Dam Orange 8 Dredge/Fill Site Owner 11/29/1999 null 203010 401 Cert-Sand Cyn RES. Wal Orange 8 Dredge/Fill Site Owner 09/05/2000 null 202993 401 Cert-San Joaquin Weir Orange 8 Dredge/Fill Site Owner 09/15/2000 null 202969 401 Cert-San Diego Ck, Pump St Orange 8 Dredge/Fill Site Owner 09/29/1999 null 202627 401 Cert-24" University Water Orange 8 Dredge/Fill Site Owner 08/17/2000 null Related Parties Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification 641843 Brandon Joseph Person Data Submitter 10/03/2023 null null 641843 Brandon Joseph Person Data Submitter 09/26/2023 null null 641841 Jeremy Hartoog Person Data Submitter 09/26/2023 null null 641134 Scott Giatpaiboon Person Data Submitter 08/18/2023 null null 637369 Andy UK Person Legally Responsible Official 02/09/2023 null null 636435 Denise Chauv Person Data Submitter 12/06/2022 null null 634485 Devin McQuown Person Data Submitter 07/21/2022 null null 631852 Thomas Bonkowski Person Legally Responsible Official 03/24/2022 null null 626328 Kyra Barboza Person Data Submitter 08/16/2021 null null 626328 Kyra Barboza Person Data Submitter 07/22/2021 null null 622948 Franklin Soto Person Data Submitter 04/30/2021 null null 622948 Franklin Soto Person Data Submitter 03/23/2021 null null 610832 Heather Rankin Person Data Submitter 07/24/2020 null null 610832 Heather Rankin Person Data Submitter 07/08/2020 null null 596585 William Kleinau Person Legally Responsible Official 09/18/2023 null null 594141 Linda Orozco Person Data Submitter 06/20/2019 null null 594141 Linda Orozco Person Data Submitter 07/20/2022 null null 594141 Linda Orozco Person Data Submitter 01/18/2019 null null 585036 adam stontz Person Data Submitter 10/22/2018 null null 585036 adam stontz Person Data Submitter 10/05/2018 null null 569500 Joseph McGehee Person Legally Responsible Official 11/13/2017 null null 564712 Michelle Breiter Person Data Submitter 06/09/2020 null null 564712 Michelle Breiter Person Data Submitter 05/28/2020 null null 555767 Jose Zepeda Person Legally Responsible Official 04/25/2016 null null 552590 Dorien Mc Elroy Person Data Submitter 08/17/2015 null null 552590 Dorien Mc Elroy Person Data Submitter 08/24/2015 null null 552148 Randy Lee Person Legally Responsible Official 07/16/2015 null null 551396 Richard Lao Person Data Submitter 06/01/2015 12/23/2019 null 551396 Richard Lao Person Data Submitter 03/14/2016 12/23/2019 null 551396 Richard Lao Person Data Submitter 06/24/2015 12/23/2019 null 537817 Wendy Chambers Person Legally Responsible Official 01/11/2019 null null 535574 Christian Kessler Person Legally Responsible Official 12/05/2011 null null 535434 Kevin Burton Person Legally Responsible Official 07/23/2012 null null 535334 Chuck Borkman Person Legally Responsible Official 07/19/2012 06/30/2015 null 534859 Greg Herr Person Legally Responsible Official 07/04/2012 null null 531580 David Pedersen Person Legally Responsible Official 02/02/2012 09/09/2013 null 528450 Randall Sundberg Person Legally Responsible Official 08/15/2011 06/30/2015 null 524564 Lyndy Lewis Person Employee 01/15/2013 08/29/2018 null 523511 Lisa Haney Person Data Submitter 06/01/2020 null null 523511 Lisa Haney Person Data Submitter 07/27/2021 null null 366863 Ronald Young Person Legally Responsible Official 08/31/1994 06/16/2005 null 362738 Charlie Hjorth Person Data Submitter 01/31/2007 03/15/2017 null 362729 Henry Solis Person Data Submitter 01/31/2007 04/11/2017 null 362723 Joseph Costantino Person Data Submitter 01/31/2007 04/11/2017 null 362720 Greg Springman Person Data Submitter 01/31/2007 06/30/2015 null 362702 Soha Vazirnia Person Data Submitter 01/31/2007 06/30/2015 null 358062 James Colston Person Data Submitter 02/20/2020 null null 316207 Cynthia Beck Person Legally Responsible Official 05/12/2006 01/15/2013 null 313867 Lyndy Lewis Person Data Submitter 06/30/2015 08/30/2018 null 313867 Lyndy Lewis Person Legally Responsible Official 02/13/2013 08/30/2018 null 313867 Lyndy Lewis Person Data Submitter 06/23/2015 08/30/2018 null 299787 Wayne Posey Person Legally Responsible Official 05/01/2007 06/30/2015 null 299787 Wayne Posey Person Legally Responsible Official 03/23/2006 08/06/2013 null 285855 Patrick Sheilds Person Legally Responsible Official 08/01/2013 08/22/2018 null 149614 Lars Oldewage Person Data Submitter 12/09/2005 12/30/2022 null 136159 Noah Sanchez Person Facility Contact 08/31/1994 06/30/2015 null 109444 John Hills Person Legally Responsible Official 08/31/1994 09/09/2013 null 41359 South Orange County Wastewater Authority Organization Member Of 08/01/1991 null Municipal Regulatory Measures(non-enforcement) Reg. Measure ID Regulatory Measure Type Region WDID Title Status Program Order No. RM Effective Date RM Termination Date Relationship Relationship Start Date Relationship End Date 455413 Enrollee - 401 Certification 8 302023-20 Enrollee - 401 Certification for Irvine Ranch Water District Active CERFILLEXC SB20031GN 01/11/2024 null Discharger 01/02/2024 null 451099 Enrollee - 401 Certification 8 63-302023-01 DRAFT Enrollee - 401 Certification for Irvine Ranch Water District Historical CERFILLEXC RGP 63 01/31/2023 04/11/2023 Discharger 02/09/2023 null 447102 Enrollee - 401 Certification 8 302022-07 Enrollee - 401 Certification for Irvine Ranch Water District Historical CERFILLEXC SB17001GN 04/18/2022 06/30/2022 Discharger 03/24/2022 null 442012 401 Certification 8 302020-15 401 Cert for Irvine Ranch Water District Active CERFILLEXC null 08/27/2021 null Discharger 01/25/2021 null 440351 Co-Permitee SB 8 302006002 13627 Order Co-Permitee under 2020-0015-DWQ for Irvine Ranch Water District Active SLIC 2020-0015-DWQ 07/09/2020 null Discharger 09/18/2020 null 417050 Enrollee - 401 Certification 8 63-302017-03 Enrollee under for Irvine Ranch Water District Historical CERFILLEXC RGP 63 03/05/2017 04/25/2017 Discharger 11/13/2017 null 417016 Enrollee - NPDES 8 4DW0223 Enrollee - R8 & R9 NPDES 2014-0194-DWQ Irvine Ranch Water DistrictDrinking Water System Discharges Active NPDMUNIOTH 2014-0194-DWQ 07/01/2016 null Discharger 07/01/2016 null 402182 NPDES Permit 8 8 302006002 NPDES R8-2015-0024 for Irvine Ranch Water District Active NPDMUNILRG R8-2015-0024 07/01/2015 null Discharger 07/22/2015 null 392057 Enrollee - 401 Certification 8 null Enrollee under for Irvine Ranch Water District Historical CERFILLEXC RGP 63 01/14/2011 null Discharger 07/11/2013 null 392056 Enrollee - 401 Certification 8 null Enrollee under for Irvine Ranch Water District Historical CERFILLEXC RGP 63 01/16/2011 null Discharger 07/11/2013 null 386727 401 Certification 8 null 401 Cert LTR 07/23/2003 for Irvine Ranch Water District Historical CERFILLEXC null 07/23/2003 null Discharger 07/31/2012 null 386668 401 Certification 8 null 401 Cert LTR 09/22/2006 for Irvine Ranch Water District Historical CERFILLEXC null 09/22/2006 null Discharger 07/30/2012 null 386655 401 Certification 8 null 401 Cert LTR 02/07/2007 for Irvine Ranch Water District Historical CERFILLEXC null 02/07/2007 null Discharger 07/30/2012 null 386637 401 Certification 8 null 401 Cert LTR 02/07/2007 for Irvine Ranch Water District Historical CERFILLEXC null 02/07/2007 null Discharger 07/30/2012 null 386593 401 Certification 8 null 401 Cert LTR 09/06/2011 for Irvine Ranch Water District Historical CERFILLEXC null 09/06/2011 09/04/2016 Discharger 07/26/2012 null 386449 401 Certification 8 null 401 Cert LTR 12/02/2008 for Irvine Ranch Water District Historical CERFILLEXC null 12/02/2008 null Discharger 07/23/2012 null 386388 401 Certification 8 null 401 Cert LTR 02/08/2007 for Irvine Ranch Water District Historical CERFILLEXC null 02/08/2007 null Discharger 07/19/2012 null 386384 401 Certification 8 null 401 Cert LTR 11/30/2005 for Irvine Ranch Water District Historical CERFILLEXC null 11/30/2005 null Discharger 07/19/2012 null 386357 401 Certification 8 null 401 Cert LTR 03/18/2004 for Irvine Ranch Water District Historical CERFILLEXC null 03/18/2004 null Discharger 07/19/2012 null 386347 401 Certification 8 null 401 Cert LTR 02/11/2004 for Irvine Ranch Water District Historical CERFILLEXC null 02/11/2004 null Discharger 07/19/2012 null 385910 401 Certification 8 null 401 WQC for Irvine Ranch Water District Historical CERFILLEXC null 08/13/2002 null Discharger 07/05/2012 null 385845 401 Certification 8 null 401 WQC for Irvine Ranch Water District Historical CERFILLEXC null 07/17/2001 null Discharger 07/03/2012 null 380819 401 Certification 8 null 401 Certification 08/20/2009 for Irvine Ranch Water District Historical CERFILLEXC null 08/20/2009 08/20/2014 Discharger 08/15/2011 null 380470 401 Certification 8 null 401 Certification for Emergency Vegetation Removal (San Joaquin Marsh) Active CERFILLEXC null null null Discharger 11/08/1996 null 380468 401 Certification 8 null 401 Certification for the Duck Pond (San Joaquin Marsh) Reconfiguration Project Historical CERFILLEXC null null 01/28/1997 Discharger 01/28/1997 null 379851 401 Certification 8 null 401 Certification for North Carlson Pond Active CERFILLEXC null null null Discharger 01/01/1997 null 373738 Enrollee - NPDES 8 8 303585001 Enrollee - NPDES under General DeMinimis Permit for Irvine Ranch Water District Active NPDNONMUNIPRCS R8-2020-0006 05/18/2010 null Discharger 04/13/2010 null 349491 401 Certification 8 null 401 Certification for NTS 67 (Cienega Filtration) Historical CERFILLEXC null null null Discharger 02/07/2007 null 349444 401 Certification 8 null 401 Certification for NTS 26, 55, and 64 Historical CERFILLEXC null null null Discharger 07/22/2008 null 349442 401 Certification 8 null 401 Certification for Natural Treatment Systems 53 and 56 Historical CERFILLEXC null null null Discharger 07/22/2008 null 348856 401 Certification 8 null 401 Certification for regrading Carlson Marsh in the San Joaquin Marsh Historical CERFILLEXC null null null Discharger 07/11/2008 null 348467 NPDES Permit 8 8 302006002 NPDES R8-2007-0003 for IRWD Historical NPDMUNILRG R8-2007-0003 11/30/2007 06/30/2015 Discharger 12/07/2005 null 347054 401 Certification 8 null Serrano Creek Sewer Line Protection Historical CERFILLEXC null null null Discharger 06/16/2008 null 339385 Enrollee 8 8SSO11518 Enrollee of SB SSO WDR for IRWD OCSD Regional 2 Active SSOMUNISML 2022-0103-DWQ 05/02/2006 null Discharger 12/26/2006 null 338949 Enrollee 8 8SSO11513 Enrollee of SB SSO WDR for Irvine Ranch Water District Active SSOMUNILRG 2022-0103-DWQ 12/26/2007 null Discharger 12/26/2007 null 338942 Enrollee 9 9SSO11514 Enrollee of SB SSO WDR for Irvine Ranch WD, El Toro, R9 Active SSOMUNISML 2022-0103-DWQ 12/26/2007 null Discharger 12/26/2007 null 308686 Co-Permitee 8 8 303482001 Co-Permitee Under R8-2002-0014 for Irvine Ranch Water District Historical WDR R8-2002-0014 04/26/2002 12/01/2006 Discharger 09/06/2006 null 300551 Enrollee 9 9SSO10669 Enrollee of SB SSO WDR for Irvine Ranch WD, Los Alisos, R9 Active SSOMUNILRG 2022-0103-DWQ 11/17/2006 null Discharger 04/12/2006 null 298936 Enrollee 8 8SSO10587 Enrollee of SB SSO WDR for Irvine Ranch Water District Active SSOMUNILRG 2022-0103-DWQ 11/17/2006 null Discharger 03/23/2006 null 260458 Letter 8 null 8 303148001-LT980826 Historical WDR LT980826 null 08/26/1998 Discharger 08/26/1998 null 260409 Letter 8 null 8 303175001-LT981221 Historical WDR LT981221 null 12/21/1998 Discharger 12/21/1998 null 260399 Letter 8 null 8 303161001-LT980928 Historical WDR LT980928 null 09/28/1998 Discharger 09/28/1998 null 260396 Letter 8 null 8 303156001-LT980820 Historical WDR LT980820 null 08/20/1998 Discharger 08/20/1998 null 260340 Letter 8 null 8 303041001-LT970312 Historical WDR LT970312 null 03/12/1997 Discharger 03/12/1997 null 260339 Letter 8 null 8 303040001-LT970312 Historical WDR LT970312 null 03/12/1997 Discharger 03/12/1997 null 260328 Letter 8 null 8 303014001-LT970128 Historical WDR LT970128 null 01/28/1997 Discharger 01/28/1997 null 260321 Letter 8 null 8 302995001-LT960716 Historical WDR LT960716 null 07/16/1996 Discharger 07/16/1996 null 260300 Letter 8 null 8 302006007-LT910129 Historical NPDESWW LT910129 null 02/01/1996 Discharger 01/29/1991 null 260237 Letter 8 null 8 303096001-LT971117 Historical WDR LT971117 null 11/17/1997 Discharger 11/17/1997 null 260202 Letter 8 null 8 302939001-LT960603 Historical WDR LT960603 null 06/03/1996 Discharger 06/03/1996 null 260198 Letter 8 null 8 302926001-LT960424 Historical WDR LT960424 null 04/24/1996 Discharger 04/24/1996 null 260197 Letter 8 null 8 302924001-LT960220 Historical WDR LT960220 null 02/20/1996 Discharger 02/20/1996 null 260028 Letter 8 null 8 302440001-LT900321 Historical NPDESWW LT900321 03/21/1990 03/21/1990 Discharger 03/21/1990 null 259340 Letter 8 null 8 302006009-LT901109 Historical NPDESWW LT901109 null 06/01/1995 Discharger 11/09/1990 null 214107 Enrollee 9 null Enrollee NPDES R9-2010-0003 Irvine Ranch WD Hydrostatic/Potable Discharges Historical NPDNONMUNIPRCS R9-2010-0003 10/17/2002 06/30/2016 Discharger 09/01/2005 null 213954 Enrollee 9 9 000000772 Enrollee WDR R9-2007-0005 SSO Irvine Ranch Water District CS Active SSOMUNILRG R9-2007-0005 05/09/1996 null Discharger 09/01/2005 null 206324 Enrollee - NPDES 8 8 303462001 Enrollee Under General NB De Minimis Permit - Irvine Ranch Water District Active NPDNONMUNIPRCS R8-2019-0061 04/20/2005 null Discharger 09/01/2005 null 205889 Enrollee 8 8 302006009 8 302006009 Historical NPDNONMUNIPRCS 98-067 06/14/1985 12/20/2004 Discharger 09/01/2005 null 166348 401 Certification 8 8 303318001 8 303318001 - IRWD-San Joaquin Weir Historical CERFILLEXC null 11/29/2000 null Discharger 06/17/2005 null 165644 401 Certification 8 8 303307001 8 303307001 - IRWD - 24" University Water Historical CERFILLEXC null 10/11/2000 null Discharger 06/17/2005 null 161185 401 Certification 8 8 303234001 8 303234001 Historical CERFILLEXC null null null Discharger 06/17/2005 null 161184 401 Certification 8 8 303233001 8 303233001 Historical CERFILLEXC null null null Discharger 06/17/2005 null 159994 401 Certification 8 8 303266001 8 303266001 Historical CERFILLEXC null null null Discharger 06/17/2005 null 159993 401 Certification 8 8 303267001 8 303267001 Historical CERFILLEXC null null null Discharger 06/17/2005 null 140835 WDR 8 8 302671001 WDR 96-056 for IRVINE RANCH WATER DISTRICT Historical WDR 96-056 10/11/1996 07/18/2002 Discharger 10/11/1996 null 140507 NPDES Permit 8 8 302819001 NPDES 96-002 for IRVINE RANCH WATER DISTRICT Historical NPDMUNILRG 96-002 04/17/1998 03/05/1999 Discharger 04/17/1998 null 140426 NPDES Permit 8 8 302006007 NPDES 94-02201 for IRVINE RANCH WATER DISTRICT Historical NPDESWW 94-02201 10/14/1994 null Discharger 10/14/1994 null 140425 NPDES Permit 8 8 302006002 NPDES 94-022 for IRVINE RANCH WATER DISTRICT Historical NPDMUNILRG 94-022 10/14/1994 12/18/2001 Discharger 10/14/1994 null 139876 WDR 8 8 302671001 WDR 91-014 for IRVINE RANCH WATER DISTRICT Historical WDR 91-014 02/08/1991 null Discharger 02/08/1991 null 139875 Reclamation Requirements 8 8 301428001 SWIM Order Number - 91-01301 Historical REC 91-01301 06/07/1991 null Discharger 06/07/1991 null 139874 NPDES Permit 8 8 302006002 WDR 91-013 for IRVINE RANCH WATER DISTRICT Historical NPDMUNILRG 91-013 06/07/1991 10/14/1994 Discharger 06/07/1991 null 139202 NPDES Permit 8 8 302006007 NPDES 86-001 for IRVINE RANCH WATER DISTRICT Historical NPDESWW 86-001 02/14/1986 null Discharger 02/14/1986 null 138719 NPDES Permit 8 8 302006009 NPDES 85-080 for IRVINE RANCH WATER DISTRICT Historical NPDNONMUNIPRCS 85-080 06/14/1985 null Discharger 06/14/1985 null 138578 WDR 8 8 301428001 WDR 81-178 for IRVINE RANCH WATER DISTRICT Historical WDR 81-178 09/11/1981 null Discharger 09/11/1981 null 137871 WDR 8 8 302440001 NPDES 81-114 for IRVINE RANCH WATER DISTRICT Historical NPDESWW 81-114 09/11/1981 null Discharger 09/11/1981 null 136935 NPDES Permit 8 8 302006002 WDR 76-049 for IRVINE RANCH WATER DISTRICT Historical NPDMUNILRG 76-049 04/09/1976 06/07/1991 Discharger 04/09/1976 null 132117 WDR 8 null WDR R8-2002-0014 for SEWAGE COLLECTION AGENCIES Historical WDR R8-2002-0014 04/26/2002 12/01/2006 Discharger 04/26/2002 null 131681 WDR 8 8 302671001 WDR 02-069 for IRVINE RANCH WATER DISTRICT Historical WDRMUNIOTH R8-2002-0069 07/19/2002 07/19/2012 Discharger 07/19/2002 null 131152 NPDES Permit 8 8 302006002 NPDES R8-2001-0095 FOR IRWD Historical NPDMUNILRG R8-2001-0095 12/19/2001 11/29/2007 Discharger 12/19/2001 null Violations within the past calendar 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. 1128217 04/05/2024 CAT2 Hydrocarbons, Petroleum Daily Maximum limit is 100 ug/L and reported value was 246 ug/L at M-008. Violation N eSMR Michelson WWRF 402182 R8-2015-0024 N Enforcement Actions Enforcement ID Enforcement Type Enf. Order No. Title Program Effective Date Status 433289 Staff Enforcement Letter null SEL 07/30/2019 for Irvine Ranch Water District SSOMUNISML 07/30/2019 Historical 379921 Staff Enforcement Letter null SEL for Irvine Ranch Water District SSOMUNISML 06/28/2011 Historical 379919 Staff Enforcement Letter null SEL for Irvine Ranch Water District SSOMUNILRG 06/28/2011 Historical 378273 Admin Civil Liability R8-2010-0073 ACLO R8-2010-0073 for IRWD, Newport Coast Lift Station Spill WDR 11/09/2010 Historical 253324 Admin Civil Liability R8-2004-0105 MPC R8-2004-0105 for IRWD NPDMUNILRG 11/16/2004 Historical 249764 Staff Enforcement Letter UNKNOWN Enforcement - 9 000001037 NPDNONMUNIPRCS 01/27/2004 Historical 243841 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000772 WDRMUNILRG 06/06/2003 Historical 239496 Oral Communication UNKNOWN Enforcement - 8 302006009 NPDNONMUNIPRCS 02/07/2002 Historical 236829 Admin Civil Liability R8-2001-0046 ACLC R8-2001-0046 for IRWD NPDMUNILRG 09/10/2001 Historical 236108 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000532 DISCHLND 05/04/2001 Historical 235016 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000772 WDRMUNILRG 08/24/2000 Historical 233700 Oral Communication UNKNOWN Enforcement - 8 302006009 NPDNONMUNIPRCS 03/15/2001 Historical 223193 Admin Civil Liability 96-027 ACLC 96-027 for IRWD NPDMUNILRG 02/08/1996 Historical 222978 Admin Civil Liability 96-074 ACLC 96-074 for IRWD NPDMUNILRG 09/04/1996 Historical Regulatory Measures linked to Related Parties Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status 412757 South Orange County Wastewater Authority Enrollee - 401 Certification CERFILLEXC 04/14/2017 Active 406764 South Orange County Wastewater Authority 401 Certification CERFILLEXC 08/08/2016 Historical 399726 South Orange County Wastewater Authority 401 Certification CERFILLEXC 01/07/2016 Active 392051 South Orange County Wastewater Authority Enrollee - 401 Certification CERFILLEXC 07/08/2011 Historical 169820 South Orange County Wastewater Authority 401 Certification CERFILLEXC null Historical 140354 South Orange County Wastewater Authority WDR WDRMUNILRG 03/11/1994 Historical