| Enforcement ID | Enforcement Type | Enf. Order No. | Title | Program | Effective Date | Status | 
                
                  
      			   
                    
                      
                      
                        | 227311 | Notice of Violation | UNKNOWN | Enforcement - 2 071048001 | NPDESWW | 11/22/1999 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 399971 | Notice of Violation | None | Notice of Violation for Ox-pond Return Line Bypass and Diffusion Line Leaks | NPDNONMUNIPRCS | 03/18/2008 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 244307 | Staff Enforcement Letter | UNKNOWN | Enforcement - 2 071048N05 | SLIC | 06/16/2003 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 377188 | Staff Enforcement Letter | None | SEL 12/10/2010 for TESORO REFINING & MARKETING CO | NPDINDLRG | 12/10/2010 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 416649 | Oral Communication | None | Oral Com 10/05/2017 for Tesoro Refining & Marketing Company LLC Martinez | NPDINDLRG | 10/05/2017 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 244308 | Staff Enforcement Letter | UNKNOWN | Enforcement - 2 071048N05 | SLIC | 06/16/2003 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 221715 | Cease and Desist Order | 99-046 | Enforcement - CDO 99-046 Amending CDO 95-151 | NPDESWW | 06/16/1999 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 223051 | Admin Civil Liability | 95-050 | Enforcement - 2 071048001 | NPDESWW | 05/24/1995 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 226907 | Notice of Violation | UNKNOWN | Enforcement - 2 071048001 | NPDESWW | 07/29/1999 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 245214 | Oral Communication | UNKNOWN | Enforcement - 2 071048N05 | SLIC | 12/11/2002 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 385355 | Admin Civil Liability | R2-2012-0048 | ACL R2-2012-0048 for TESORO REFINING & MARKETING CO | NPDESWW | 09/10/2012 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 222921 | Cease and Desist Order | 95-151 | Enforcement - CDO 95-151 For Tesoro R&M Co. | NPDESWW | 11/15/1995 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 222963 | Admin Civil Liability | 87-136 | Enforcement - 2 071048001 | NPDESWW | 11/18/1987 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 225590 | Admin Civil Liability | R2-2000-0114 | Enforcement - 2 071048001 | NPDESWW | 09/13/2000 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 244700 | Oral Communication | UNKNOWN | Enforcement - 2 071048N05 | SLIC | 03/11/2003 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 459403 | Admin Civil Liability | R2-2025-1009 | ACL R2-2025-1009 for Tesoro Refining & Marketing Company LLC Martinez | NPDINDLRG | 04/01/2025 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 245150 | Oral Communication | UNKNOWN | Enforcement - 2 071048N05 | SLIC | 02/13/2003 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 253738 | Admin Civil Liability | R2-2004-0068 | Enforcement - 2 071048001 | NPDESWW | 10/08/2004 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 355065 | Admin Civil Liability | SWB-2008-2-0031 | Expedited Payment Letter for TESORO REFINING & MARKETING CO | NPDESWW | 11/19/2008 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 374724 | Notice of Violation | None | Notice of Violation for Acute Toxicity Violations | NPDESWW | 06/28/2010 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 244699 | Oral Communication | UNKNOWN | Enforcement - 2 071048N05 | SLIC | 03/06/2003 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 363754 | Admin Civil Liability | R2-2009-0095 | ACL MMP for Tesoro Refining & Marketing Co. | NPDESWW | 02/05/2009 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 377186 | Staff Enforcement Letter | None | SEL 12/10/2010 for TESORO REFINING & MARKETING CO | NPDINDLRG | 12/10/2010 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 244309 | Staff Enforcement Letter | UNKNOWN | Enforcement - 2 071048N05 | SLIC | 06/16/2003 | Historical |