| Reg. Measure ID | Organization | Regulatory Measure Type | Program | Effective Date | Status | 
                
                  
      			   
                    
                      
                      
                        | 462334 | Western Municipal Water District | Enrollee - 401 Certification | CERFILLEXC | 09/24/2025 | Active | 
                
                  
      			   
                    
                      
                      
                        | 454540 | Western Municipal Water District | Enrollee - 401 Certification | CERFILLEXC | 10/13/2023 | Active | 
                
                  
      			   
                    
                      
                      
                        | 437669 | Western Municipal Water District | Enrollee - 401 Certification | CERFILLEXC | 04/15/2020 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 430973 | Western Municipal Water District | Enrollee - NPDES | NPDNONMUNIPRCS | 07/18/2019 | Active | 
                
                  
      			   
                    
                      
                      
                        | 405064 | Western Municipal Water District | Enrollee - NPDES | NPDNONMUNIPRCS | 02/25/2016 | Active | 
                
                  
      			   
                    
                      
                      
                        | 405062 | Western Municipal Water District | Enrollee - NPDES | NPDNONMUNIPRCS | 02/25/2016 | Active | 
                
                  
      			   
                    
                      
                      
                        | 405053 | Western Municipal Water District | Enrollee - NPDES | NPDNONMUNIPRCS | 02/25/2016 | Active | 
                
                  
      			   
                    
                      
                      
                        | 395117 | Western Municipal Water District | Enrollee | NPDNONMUNIPRCS | 03/06/2014 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 383591 | Western Municipal Water District | Enrollee | NPDNONMUNIPRCS | None | Historical | 
                
                  
      			   
                    
                      
                      
                        | 381701 | Western Municipal Water District | Enrollee | NPDNONMUNIPRCS | 10/11/2011 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 363275 | Western Municipal Water District | Reclamation Requirements | REC | 06/10/2009 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 300470 | Western Municipal Water District | Enrollee | SSOMUNILRG | 07/21/2006 | Active | 
                
                  
      			   
                    
                      
                      
                        | 259287 | Western Municipal Water District | Letter | WDR | None | Historical | 
                
                  
      			   
                    
                      
                      
                        | 259270 | Western Municipal Water District | Letter | WDR | None | Historical | 
                
                  
      			   
                    
                      
                      
                        | 259261 | Western Municipal Water District | Letter | WDR | None | Historical | 
                
                  
      			   
                    
                      
                      
                        | 209332 | Western Municipal Water District | Enrollee | WDRNONMUNIPRCS | 03/04/2004 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 209272 | Western Municipal Water District | Enrollee | NPDNONMUNIPRCS | 08/19/1998 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 164662 | Western Municipal Water District | 401 Certification | CERFILLEXC | None | Historical | 
                
                  
      			   
                    
                      
                      
                        | 141986 | Western Municipal Water District | WDR | WDRMUNIOTH | 09/01/1995 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 139730 | Western Municipal Water District | WDR | WDRMUNIOTH | 09/08/1989 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 139339 | Western Municipal Water District | WDR | WDRMUNILRG | 03/11/1988 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 139198 | Western Municipal Water District | WDR | WDRMUNILRG | 12/13/1985 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 138383 | Western Municipal Water District | WDR | WDRMUNIOTH | 09/14/1984 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 132543 | Western Municipal Water District | WDR | WDRMUNILRG | 11/21/2003 | Active |