| Enforcement ID | 
                  Enforcement Type | 
                  Enf. Order No. | 
                  Title | 
                  Program | 
                  Effective Date | 
                  Status | 
                
                
                  
      			   
                    
                      
                      
                        | 460869 | 
                      
                    
                    Notice of Violation | 
                    None | 
                    NOV 04/30/2025 for Mt Shasta City | 
                    NPDMUNIOTH | 
                    04/30/2025 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 458285 | 
                      
                    
                    Oral Communication | 
                    None | 
                    Oral Com 08/26/2024 for Mt Shasta City | 
                    NPDMUNIOTH | 
                    08/26/2024 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 457771 | 
                      
                    
                    Notice of Violation | 
                    None | 
                    NOV 07/18/2024 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    07/18/2024 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 457630 | 
                      
                    
                    Oral Communication | 
                    None | 
                    Oral Com 07/09/2024 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    07/09/2024 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 456813 | 
                      
                    
                    Admin Civil Liability | 
                    R5-2024-0504 | 
                    ACL R5-2024-0504 for Mt Shasta City | 
                    NPDMUNIOTH | 
                    04/15/2024 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 456651 | 
                      
                    
                    Notice of Violation | 
                    None | 
                    NOV 04/22/2024 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    04/22/2024 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 456546 | 
                      
                    
                    Oral Communication | 
                    None | 
                    Oral Com 03/01/2024 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    03/01/2024 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 455439 | 
                      
                    
                    Oral Communication | 
                    None | 
                    Oral Com 01/04/2024 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    01/04/2024 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 455278 | 
                      
                    
                    Oral Communication | 
                    None | 
                    Oral Com 12/12/2023 for Mt Shasta City | 
                    NPDMUNIOTH | 
                    12/12/2023 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 454984 | 
                      
                    
                    Oral Communication | 
                    None | 
                    Oral Com 11/08/2023 for Mt Shasta City | 
                    NPDMUNIOTH | 
                    11/08/2023 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 454104 | 
                      
                    
                    Notice of Violation | 
                    None | 
                    NOV 08/24/2023 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    08/24/2023 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 453853 | 
                      
                    
                    Oral Communication | 
                    None | 
                    Oral Com 07/26/2023 for Mt Shasta City | 
                    NPDMUNIOTH | 
                    07/26/2023 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 451106 | 
                      
                    
                    Oral Communication | 
                    None | 
                    Oral Com 10/26/2022 for Mt Shasta City | 
                    NPDMUNIOTH | 
                    10/26/2022 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 450382 | 
                      
                    
                    Time Schedule Order | 
                    R5-2022-0902 | 
                    TSO R5-2022-0902 for Mt Shasta City WWTP | 
                    NPDMUNIOTH | 
                    11/21/2022 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 448660 | 
                      
                    
                    Notice of Violation | 
                    None | 
                    NOV 06/21/2022 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    06/21/2022 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 448170 | 
                      
                    
                    Oral Communication | 
                    None | 
                    Oral Com 06/16/2022 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    06/16/2022 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 444544 | 
                      
                    
                    Notice of Violation | 
                    None | 
                    NOV 08/12/2021 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    08/12/2021 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 439215 | 
                      
                    
                    Oral Communication | 
                    None | 
                    Oral Com 07/17/2020 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    07/17/2020 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 433548 | 
                      
                    
                    Admin Civil Liability | 
                    R5-2020-0543 | 
                    ACL R5-2020-0543 for Mt Shasta City | 
                    NPDMUNIOTH | 
                    10/07/2020 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 428167 | 
                      
                    
                    Notice of Violation | 
                    None | 
                    NOV 01/04/2019 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    01/04/2019 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 427878 | 
                      
                    
                    Notice of Violation | 
                    None | 
                    NOV 11/20/2018 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    11/20/2018 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 425685 | 
                      
                    
                    Notice of Violation | 
                    None | 
                    NOV 08/31/2018 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    08/31/2018 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 419403 | 
                      
                    
                    Notice of Violation | 
                    None | 
                    NOV 01/03/2018 for Mt Shasta City | 
                    SSOMUNISML | 
                    01/03/2018 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 418661 | 
                      
                    
                    Admin Civil Liability | 
                    R5-2019-0503 | 
                    ACL R5-2019-0503 for Mt Shasta City | 
                    NPDMUNIOTH | 
                    04/23/2019 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 412718 | 
                      
                    
                    Notice of Violation | 
                    None | 
                    NOV 04/13/2017 for Mt Shasta City | 
                    SSOMUNISML | 
                    04/13/2017 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 411685 | 
                      
                    
                    Notice of Violation | 
                    None | 
                    NOV 02/02/2017 for Mt Shasta City | 
                    SSOMUNISML | 
                    02/02/2017 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 410291 | 
                      
                    
                    Notice of Violation | 
                    R5-2012-0086 | 
                    NOV 11/22/2016 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    11/22/2016 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 403347 | 
                      
                    
                    Notice of Violation | 
                    None | 
                    NOV 10/20/2015 for Mt Shasta City | 
                    SSOMUNISML | 
                    10/20/2015 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 399957 | 
                      
                    
                    Notice of Violation | 
                    None | 
                    NOV 01/14/2015 for Mt Shasta City | 
                    SSOMUNISML | 
                    01/14/2015 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 399343 | 
                      
                    
                    Notice of Violation | 
                    None | 
                    NOV 12/11/2014 for Mt Shasta City | 
                    SSOMUNISML | 
                    12/11/2014 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 397099 | 
                      
                    
                    Notice of Violation | 
                    2006-0003-DWQ | 
                    NOV 07/03/2014 for Mt Shasta City | 
                    WDR | 
                    07/03/2014 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 394609 | 
                      
                    
                    Oral Communication | 
                    None | 
                    Oral Com 01/15/2014 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    01/15/2014 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 394138 | 
                      
                    
                    Oral Communication | 
                    None | 
                    Oral Com 12/06/2013 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    12/06/2013 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 393026 | 
                      
                    
                    Admin Civil Liability | 
                    R5-2014-0510 | 
                    ACL R5-2014-0510 for Mt Shasta City | 
                    NPDMUNIOTH | 
                    02/28/2014 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 392701 | 
                      
                    
                    Notice of Violation | 
                    None | 
                    NOV 08/02/2013 for Mt Shasta City | 
                    SSOMUNISML | 
                    08/02/2013 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 389428 | 
                      
                    
                    Staff Enforcement Letter | 
                    None | 
                    SEL 02/12/2013 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    02/12/2013 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 389426 | 
                      
                    
                    Notice of Violation | 
                    None | 
                    NOV 02/12/2013 for Mt Shasta City | 
                    SSOMUNISML | 
                    02/12/2013 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 389026 | 
                      
                    
                    Notice of Violation | 
                    None | 
                    NOV 02/06/2013 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    02/06/2013 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 387911 | 
                      
                    
                    Time Schedule Order | 
                    R5-2012-0087 | 
                    TSO R5-2012-0087 for City of Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    10/04/2012 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 386847 | 
                      
                    
                    Staff Enforcement Letter | 
                    None | 
                    SEL 08/07/2012 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    08/07/2012 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 385677 | 
                      
                    
                    Oral Communication | 
                    None | 
                    Oral Com 06/25/2012 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    06/25/2012 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 385015 | 
                      
                    
                    Admin Civil Liability | 
                    R5-2014-0509 | 
                    ACL R5-2014-0509 for Mt Shasta City | 
                    NPDESWW | 
                    03/05/2014 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 383637 | 
                      
                    
                    Notice of Violation | 
                    None | 
                    NOV 03/05/2012 for Mt Shasta WWTP | 
                    NPDESWW | 
                    03/05/2012 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 382051 | 
                      
                    
                    Notice of Violation | 
                    None | 
                    NOV 10/27/2011 for Mt Shasta WWTP | 
                    NPDESWW | 
                    10/27/2011 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 378083 | 
                      
                    
                    Oral Communication | 
                    None | 
                    Oral Com 03/10/2011 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    03/10/2011 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 378077 | 
                      
                    
                    Oral Communication | 
                    None | 
                    Oral Com 03/08/2011 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    03/08/2011 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 377467 | 
                      
                    
                    Staff Enforcement Letter | 
                    None | 
                    SEL 1/11/2011 Mt Shasta WWTP | 
                    NPDESWW | 
                    01/11/2011 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 376758 | 
                      
                    
                    Notice of Violation | 
                    None | 
                    NOV 11/02/2010 for Mt Shasta WWTP | 
                    NPDESWW | 
                    11/02/2010 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 376228 | 
                      
                    
                    Staff Enforcement Letter | 
                    None | 
                    SEL 10/04/2010 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    10/04/2010 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 375653 | 
                      
                    
                    Staff Enforcement Letter | 
                    None | 
                    SEL 08/19/2010 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    08/19/2010 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 374761 | 
                      
                    
                    Cease and Desist Order | 
                    R5-2010-0064 | 
                    CDO R5-2010-0064 for Mt Shasta City WWTP | 
                    NPDESWW | 
                    05/27/2010 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 372335 | 
                      
                    
                    Oral Communication | 
                    None | 
                    Oral Com 05/19/2009 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    12/21/2009 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 372333 | 
                      
                    
                    Oral Communication | 
                    None | 
                    Oral Com 09/26/2008 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    09/26/2008 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 329354 | 
                      
                    
                    Cease and Desist Order | 
                    R5-2007-0057 | 
                    CDO R5-2007-0057 for Mt Shasta City WWTP | 
                    NPDESWW | 
                    06/21/2007 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 256282 | 
                      
                    
                    Notice of Violation | 
                    None | 
                    NOV 4/14/2004 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    04/14/2005 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 251162 | 
                      
                    
                    Notice of Violation | 
                    None | 
                    NOV 2/27/2004 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    02/27/2004 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 245051 | 
                      
                    
                    Notice of Violation | 
                    None | 
                    NOV 2/11/2003 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    02/11/2003 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 243064 | 
                      
                    
                    Notice of Violation | 
                    None | 
                    NOV 6/16/2003 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    06/16/2003 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 240150 | 
                      
                    
                    Notice of Violation | 
                    None | 
                    NOV 1/11/2002 for Mt Shasta WWTP | 
                    NPDMUNIOTH | 
                    01/11/2002 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 219328 | 
                      
                    
                    Cease and Desist Order | 
                    R5-1997-0092 | 
                    CDO R5-1997-0092 for City of Mt Shasta | 
                    NPDMUNIOTH | 
                    04/25/1997 | 
                    Historical | 
                  
                
                  
      			   
                    
                      
                      
                        | 219099 | 
                      
                    
                    Cease and Desist Order | 
                    R5-1998-0025 | 
                    CDO R5-1998-0025 for City of Mt Shasta | 
                    NPDMUNIOTH | 
                    02/27/1998 | 
                    Historical |