General Information Party ID Party Name Party Classification Mailing Address Work Phone Email/Website 532297 Santa Rosa Area MS4 Phase 1 Government Agency Combination null null Related Places Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date 256062 Santa Rosa Area MS4 Phase 1 Permit Sonoma 1 MS4 Owner and Operator 03/14/2012 null Related Parties Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification 148702 Santa Rosa City Dept of Public Works Organization In an Agreement With (Passive) 03/14/2012 null City Agency 41499 Sonoma County Water Agency (SCWA) Organization In an Agreement With (Passive) 03/14/2012 null County Agency 41467 Sonoma County Board of Supervisors Organization In an Agreement With (Passive) 03/14/2012 null County Agency 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 371785 NPDES Permit 1 null Santa Rosa Area MS4 Permit Historical MNSTW1 R1-2009-0050 10/01/2009 01/05/2016 Discharger 03/14/2012 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. Enforcement Actions Enforcement ID Enforcement Type Enf. Order No. Title Program Effective Date Status 387798 Notice of Violation null NOV 10/17/2012 for Santa Rosa Area MS4 Phase 1 MNSTW1 10/17/2012 Active Regulatory Measures linked to Related Parties Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status 457952 Sonoma County Water Agency (SCWA) Enrollee - 401 Certification CERFILLEXC 10/01/2024 Active 456483 Sonoma County Water Agency (SCWA) Enrollee - Waiver CERFILLEXC 05/21/2024 Active 455714 Santa Rosa City Dept of Public Works Enrollee - 401 Certification CERFILLEXC 02/14/2024 Active 455559 Santa Rosa City Dept of Public Works Enrollee - WDR CERFILLEXC 02/15/2024 Historical 452960 Sonoma County Water Agency (SCWA) Enrollee - 401 Certification CERFILLEXC 06/23/2023 Active 452504 Sonoma County Water Agency (SCWA) Enrollee - WDR CERFILLEXC 05/18/2023 Active 447308 Sonoma County Water Agency (SCWA) Enrollee - Waiver WDRMUNIENROTH 06/14/2022 Active 446863 Sonoma County Water Agency (SCWA) Enrollee - WDR CERFILLEXC 03/14/2022 Historical 446209 Santa Rosa City Dept of Public Works Enrollee - Waiver CERFILLEXC 07/11/2022 Active 441712 Sonoma County Water Agency (SCWA) WDR CERFILLEXC 12/10/2020 Active 441240 Santa Rosa City Dept of Public Works Individual Monitoring Requirem WDRMUNIENROTH 09/29/2020 Active 440253 Santa Rosa City Dept of Public Works Co-Permitee SLIC 07/09/2020 Active 440047 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 02/01/2021 Active 438767 Santa Rosa City Dept of Public Works Enrollee - WDR WDRMUNIENROTH 09/29/2020 Active 437645 Sonoma County Water Agency (SCWA) 401 Certification CERREST 07/14/2020 Active 437314 Sonoma County Water Agency (SCWA) Enrollee - 401 Certification CERFILLEXC 02/26/2020 Historical 437072 Sonoma County Water Agency (SCWA) Individual Monitoring Requirem REC 06/27/2019 Active 436540 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 05/12/2020 Active 435492 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC null Historical 434859 Santa Rosa City Dept of Public Works Enrollee - WDR CERFILLEXC 10/14/2019 Historical 433463 Sonoma County Water Agency (SCWA) WDR WDRMUNIOTH 06/20/2019 Active 432957 Sonoma County Water Agency (SCWA) NPDES Permit NPDMUNILRG 09/01/2019 Active 429402 Santa Rosa City Dept of Public Works Enrollee - Waiver CERFILLEXC 04/16/2019 Active 427524 Sonoma County Water Agency (SCWA) NPDES Permit NPDMUNIOTH 08/01/2021 Active 427520 Santa Rosa City Dept of Public Works NPDES Permit NPDMUNILRG 10/01/2020 Active 423602 Sonoma County Water Agency (SCWA) WDR WDRMUNILRG 07/01/2019 Active 420178 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 06/07/2018 Active 419472 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 09/18/2018 Active 416678 Sonoma County Water Agency (SCWA) Enrollee - NPDES NPDNONMUNIPRCS 07/01/2016 Active 414345 Sonoma County Water Agency (SCWA) Enrollee - 401 Certification CERFILLEXC 12/28/2017 Historical 412229 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 05/17/2017 Historical 408349 Santa Rosa City Dept of Public Works 401 Certification CERREST 01/22/2021 Active 407112 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 10/27/2017 Active 407111 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 10/27/2017 Active 404763 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 05/09/2016 Active 402980 Sonoma County Water Agency (SCWA) Enrollee - WDR REC 06/27/2019 Active 396675 Sonoma County Water Agency (SCWA) Enrollee NPDNONMUNIPRCS 01/31/2014 Historical 396238 Sonoma County Water Agency (SCWA) NPDES Permit NPDMUNILRG 07/01/2014 Historical 392736 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 07/10/2014 Active 392445 Sonoma County Water Agency (SCWA) Enrollee - 401 Certification CERFILLEXC 04/16/2010 Historical 392348 Sonoma County Water Agency (SCWA) Enrollee - 401 Certification CERFILLEXC 07/22/2010 Historical 392149 Sonoma County Water Agency (SCWA) NPDES Permit NPDMUNIOTH 05/01/2014 Historical 389154 Sonoma County Water Agency (SCWA) Co-Permitee NPDMUNILRG 01/01/2013 Active 388811 Santa Rosa City Dept of Public Works Enrollee - 401 Certification CERFILLEXC 04/12/2013 Historical 387488 Sonoma County Water Agency (SCWA) NPDES Permit NPDMUNIOTH 02/01/2013 Historical 384002 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 06/20/2012 Historical 382828 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 05/10/2012 Historical 379068 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 08/03/2011 Historical 378829 Sonoma County Water Agency (SCWA) Co-Permitee NPDMUNILRG 04/01/2011 Historical 378528 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 06/01/2009 Historical 378147 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 09/22/2009 Historical 378138 Santa Rosa City Dept of Public Works NPDES Permit NPDMUNILRG 02/01/2014 Historical 377936 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 10/30/2009 Historical 377661 Sonoma County Water Agency (SCWA) Letter WDR 02/17/2011 Historical 377195 Santa Rosa City Dept of Public Works 401 Certification CERFILLEXC 04/18/2011 Historical 376807 Sonoma County Water Agency (SCWA) 401 Certification CERREST 05/14/2014 Active 375586 Sonoma County Water Agency (SCWA) Enrollee NPDNONMUNIPRCS 05/04/2006 Historical 375188 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 10/12/2010 Historical 373817 Santa Rosa City Dept of Public Works 401 Certification CERFILLEXC 12/20/2010 Historical 371135 Santa Rosa City Dept of Public Works 401 Certification CERFILLEXC 04/08/2010 Historical 370729 Santa Rosa City Dept of Public Works 401 Certification CERFILLEXC 04/01/2010 Historical 369878 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 07/23/2009 Active 363151 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 04/13/2009 Historical 362635 Sonoma County Water Agency (SCWA) WDR CERFILLEXC 07/23/2009 Historical 361916 Santa Rosa City Dept of Public Works Enrollee NPDNONMUNIPRCS 04/02/2009 Historical 360533 Sonoma County Water Agency (SCWA) Co-Permitee NPDMUNILRG 03/01/2008 Historical 354859 Santa Rosa City Dept of Public Works Waiver CERFILLEXC 10/29/2008 Historical 354515 Santa Rosa City Dept of Public Works 401 Certification CERFILLEXC 06/08/2009 Historical 353382 Santa Rosa City Dept of Public Works 401 Certification CERFILLEXC 05/27/2009 Historical 349917 Santa Rosa City Dept of Public Works Resolution NPDESWW 07/24/2008 Historical 349137 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 06/21/2008 Historical 349119 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 10/03/2005 Historical 349042 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 04/17/2006 Historical 348545 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 07/19/2006 Historical 348542 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 10/19/2006 Historical 348454 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC null Historical 348451 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 11/14/2006 Historical 348450 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 08/08/2006 Historical 347780 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 08/09/2008 Historical 347764 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 09/02/2008 Historical 347638 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 09/03/2008 Historical 347600 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 08/27/2008 Historical 341547 Sonoma County Water Agency (SCWA) NPDES Permit NPDMUNILRG 12/01/2008 Historical 332501 Santa Rosa City Dept of Public Works Enrollee - WDR WDRMUNIENROTH 06/06/2007 Active 331310 Sonoma County Water Agency (SCWA) NPDES Permit NPDMUNIOTH 03/20/2009 Historical 324858 Sonoma County Water Agency (SCWA) Enrollee NPDNONMUNIPRCS 06/19/2007 Historical 318576 Santa Rosa City Dept of Public Works 401 Certification CERFILLEXC 08/31/2001 Historical 315598 Santa Rosa City Dept of Public Works NPDES Permit NPDMUNILRG 11/09/2006 Historical 300361 Sonoma County Water Agency (SCWA) Enrollee SSOMUNILRG 10/16/2006 Active 300360 Sonoma County Water Agency (SCWA) Enrollee SSOMUNISML 10/16/2006 Active 300283 Sonoma County Water Agency (SCWA) Enrollee - WDR SSOMUNISML 10/16/2006 Active 300279 Sonoma County Water Agency (SCWA) Enrollee - WDR SSOMUNISML 10/16/2006 Active 300117 Sonoma County Water Agency (SCWA) Enrollee - WDR SSOMUNISML 10/16/2006 Active 300111 Sonoma County Water Agency (SCWA) Enrollee - WDR SSOMUNISML 10/16/2006 Active 300108 Sonoma County Water Agency (SCWA) Enrollee - WDR SSOMUNISML 10/16/2006 Active 300103 Sonoma County Water Agency (SCWA) Enrollee - WDR SSOMUNISML 10/16/2006 Active 261405 Sonoma County Water Agency (SCWA) Enrollee NPDNONMUNIPRCS 12/04/2003 Historical 261257 Sonoma County Water Agency (SCWA) Letter NPDESWW 10/15/1998 Historical 261255 Sonoma County Water Agency (SCWA) Letter NPDESWW 10/15/1998 Historical 261195 Santa Rosa City Dept of Public Works Letter MNSTW1 05/06/2004 Historical 261189 Sonoma County Water Agency (SCWA) Letter NPDESWW 09/27/2004 Historical 261172 Sonoma County Water Agency (SCWA) Letter NPDESWW 07/15/2004 Historical 261160 Sonoma County Water Agency (SCWA) Letter NPDESWW 05/05/2004 Historical 261137 Sonoma County Water Agency (SCWA) Letter NPDESWW 02/03/2004 Historical 261120 Sonoma County Water Agency (SCWA) Letter NPDESWW 12/29/2003 Historical 261094 Santa Rosa City Dept of Public Works Letter NPDESWW 11/21/2003 Historical 261093 Sonoma County Water Agency (SCWA) Letter WDR 11/21/2003 Historical 261055 Sonoma County Water Agency (SCWA) Letter WDR 08/06/2003 Historical 261038 Sonoma County Water Agency (SCWA) Letter WDR 05/14/2003 Historical 261025 Santa Rosa City Dept of Public Works Letter WDR 05/07/2003 Historical 261023 Sonoma County Water Agency (SCWA) Letter WDR 04/23/2003 Historical 261010 Sonoma County Water Agency (SCWA) Letter WDR 03/17/2003 Historical 261008 Santa Rosa City Dept of Public Works Letter MNSTW1 03/06/2003 Historical 260639 Sonoma County Water Agency (SCWA) Letter NPDESWW 04/27/2001 Historical 260638 Sonoma County Water Agency (SCWA) Letter NPDESWW 04/27/2001 Historical 260637 Sonoma County Water Agency (SCWA) Letter NPDESWW 04/27/2001 Historical 260624 Santa Rosa City Dept of Public Works Letter NPDESWW 04/27/2001 Historical 179948 Santa Rosa City Dept of Public Works Co-Permitee MNSTW1 10/01/2009 Historical 179921 Santa Rosa City Dept of Public Works Enrollee NPDNONMUNIPRCS 10/18/2000 Historical 179231 Sonoma County Water Agency (SCWA) Enrollee NPDNONMUNIPRCS 05/24/2004 Historical 179217 Sonoma County Water Agency (SCWA) Enrollee NPDNONMUNIPRCS 12/04/2003 Historical 179210 Sonoma County Water Agency (SCWA) Enrollee NPDNONMUNIPRCS 04/01/2003 Historical 179203 Sonoma County Board of Supervisors Co-Permitee MNSTW1 10/01/2009 Historical 179202 Sonoma County Water Agency (SCWA) Co-Permitee MNSTW1 10/01/2009 Historical 176692 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 06/30/2006 Historical 176653 Sonoma County Water Agency (SCWA) Enrollee - NPDES NPDNONMUNIPRCS 01/31/2014 Active 173283 Santa Rosa City Dept of Public Works 401 Certification CERFILLEXC 08/30/2004 Historical 172753 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 05/06/2004 Historical 172598 Santa Rosa City Dept of Public Works 401 Certification CERFILLEXC 06/05/2003 Historical 172522 Santa Rosa City Dept of Public Works 401 Certification CERFILLEXC 01/20/2003 Historical 172238 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 04/25/2003 Historical 171625 Santa Rosa City Dept of Public Works 401 Certification CERFILLEXC null Historical 171013 Santa Rosa City Dept of Public Works 401 Certification CERFILLEXC 03/19/2003 Historical 170389 Santa Rosa City Dept of Public Works 401 Certification CERFILLEXC 07/26/2002 Historical 170325 Santa Rosa City Dept of Public Works 401 Certification CERFILLEXC 11/10/2003 Historical 170324 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 07/03/2002 Historical 169935 Sonoma County Water Agency (SCWA) 401 Certification CERFILLEXC 07/26/2002 Historical 154138 Santa Rosa City Dept of Public Works 401 Certification CERFILLEXC 01/09/2007 Historical 152727 Santa Rosa City Dept of Public Works 401 Certification CERFILLEXC 06/23/2005 Historical 150839 Santa Rosa City Dept of Public Works 401 Certification CERFILLEXC 07/18/2005 Historical 148564 Sonoma County Water Agency (SCWA) WDR WDRMUNILRG 06/28/2001 Historical 147680 Sonoma County Water Agency (SCWA) WDR WDR 05/25/2000 Historical 147408 Sonoma County Water Agency (SCWA) NPDES Permit NPDMUNILRG 10/21/1998 Historical 147208 Santa Rosa City Dept of Public Works WDR SLIC 01/27/2000 Active 145535 Sonoma County Water Agency (SCWA) NPDES Permit NPDMUNILRG 07/15/1981 Historical 142324 Sonoma County Water Agency (SCWA) NPDES Permit NPDMUNILRG 06/17/1992 Historical 141015 Sonoma County Water Agency (SCWA) Reclamation Requirements REC 04/15/1987 Historical 140965 Sonoma County Water Agency (SCWA) NPDES Permit NPDMUNILRG 11/19/1986 Historical 139287 Santa Rosa City Dept of Public Works NPDES Permit NPDMUNILRG 08/26/1998 Historical 139284 Santa Rosa City Dept of Public Works WDR WDR 05/27/1998 Historical 139182 Sonoma County Water Agency (SCWA) WDR WDRMUNIOTH 08/27/1997 Historical 139063 Sonoma County Water Agency (SCWA) NPDES Permit NPDMUNIOTH 10/27/1994 Historical 138699 Sonoma County Water Agency (SCWA) WDR WDRMUNIOTH 03/28/1996 Active 138623 Santa Rosa City Dept of Public Works NPDES Permit NPDMUNILRG 08/16/1990 Historical 138622 Sonoma County Water Agency (SCWA) WDR WDRMUNILRG 05/23/1990 Historical 138314 Sonoma County Water Agency (SCWA) WDR WDRMUNILRG 01/27/1994 Historical 138081 Sonoma County Water Agency (SCWA) NPDES Permit NPDMUNIOTH 08/24/1995 Historical 138061 Santa Rosa City Dept of Public Works NPDES Permit NPDMUNILRG 06/22/1995 Historical 137968 Sonoma County Water Agency (SCWA) NPDES Permit NPDMUNIOTH 05/27/1993 Historical 137954 Sonoma County Water Agency (SCWA) WDR WDR 12/10/1992 Historical 137887 Sonoma County Water Agency (SCWA) NPDES Permit NPDMUNIOTH 07/27/1989 Historical 137773 Sonoma County Water Agency (SCWA) NPDES Permit NPDMUNIOTH 05/28/1992 Historical 137719 Sonoma County Water Agency (SCWA) WDR WDRMUNIOTH 08/22/1991 Historical 137718 Sonoma County Water Agency (SCWA) WDR WDR 08/22/1991 Historical 137649 Santa Rosa City Dept of Public Works WDR WDRMUNILRG 04/28/1988 Active 137639 Sonoma County Water Agency (SCWA) NPDES Permit NPDMUNIOTH 04/28/1988 Historical 137523 Sonoma County Water Agency (SCWA) WDR WDRMUNILRG 11/25/1984 Historical 137505 Sonoma County Water Agency (SCWA) NPDES Permit NPDMUNIOTH 05/31/1984 Historical 137394 Sonoma County Water Agency (SCWA) WDR WDRMUNIOTH 01/25/1979 Historical 137358 Santa Rosa City Dept of Public Works WDR WDRMUNILRG 12/07/1978 Historical 137174 Sonoma County Water Agency (SCWA) NPDES Permit NPDMUNIOTH 05/28/1987 Historical 137168 Santa Rosa City Dept of Public Works NPDES Permit NPDMUNILRG 12/04/1986 Historical 137116 Sonoma County Water Agency (SCWA) WDR WDRMUNIOTH 06/27/1986 Historical 137115 Sonoma County Water Agency (SCWA) WDR WDRMUNILRG 06/27/1986 Historical 137114 Sonoma County Water Agency (SCWA) WDR WDRMUNIOTH 05/07/1986 Historical 137043 Santa Rosa City Dept of Public Works NPDES Permit NPDMUNILRG 09/22/1983 Historical 136980 Sonoma County Water Agency (SCWA) NPDES Permit NPDMUNIOTH 02/24/1983 Historical 136708 Sonoma County Water Agency (SCWA) NPDES Permit NPDMUNIOTH 04/22/1982 Historical 136684 Sonoma County Water Agency (SCWA) WDR CERFILLEXC 08/27/1981 Historical 132342 Sonoma County Water Agency (SCWA) NPDES Permit NPDMUNIOTH 12/25/2003 Historical 132071 Sonoma County Water Agency (SCWA) WDR WDR 03/27/2003 Historical 131927 Sonoma County Water Agency (SCWA) NPDES Permit NPDMUNILRG 03/20/2002 Historical 131727 Santa Rosa City Dept of Public Works NPDES Permit NPDMUNILRG 03/01/2000 Historical