| Reg. Measure ID | Organization | Regulatory Measure Type | Program | Effective Date | Status | 
                
                  
      			   
                    
                      
                      
                        | 442214 | San Luis Obispo County | Resolution | WDRMUNIOWTS | 09/25/2020 | Active | 
                
                  
      			   
                    
                      
                      
                        | 461452 | San Luis Obispo County Department of Public Works | 401 Certification | CERFILLEXC | 08/08/2025 | Active | 
                
                  
      			   
                    
                      
                      
                        | 461203 | City of San Luis Obispo Public Works Department | Enrollee - 401 Certification | CERFILLEXC | 06/25/2025 | Active | 
                
                  
      			   
                    
                      
                      
                        | 460366 | San Luis Obispo County | 401 Certification | CERFILLEXC | 07/09/2025 | Active | 
                
                  
      			   
                    
                      
                      
                        | 460354 | San Luis Obispo County | Enrollee - 401 Certification | CERFILLEXC | 03/06/2025 | Active | 
                
                  
      			   
                    
                      
                      
                        | 458620 | San Luis Obispo County Department of Public Works | 401 Certification | CERFILLEXC | 05/19/2025 | Active | 
                
                  
      			   
                    
                      
                      
                        | 458094 | San Luis Obispo County Department of Public Works | Enrollee - 401 Certification | CERFILLEXC | 08/21/2024 | Active | 
                
                  
      			   
                    
                      
                      
                        | 457816 | San Luis Obispo County Department of Public Works | 401 Certification | CERFILLEXC | 09/12/2024 | Active | 
                
                  
      			   
                    
                      
                      
                        | 456540 | San Luis Obispo County Department of Public Works | 401 Certification | CERFILLEXC | 10/02/2025 | Active | 
                
                  
      			   
                    
                      
                      
                        | 456342 | San Luis Obispo County Department of Public Works | 401 Certification | CERFILLEXC | 04/16/2024 | Active | 
                
                  
      			   
                    
                      
                      
                        | 456060 | San Luis Obispo County Department of Public Works | Enrollee - 401 Certification | CERFILLEXC | 03/08/2024 | Active | 
                
                  
      			   
                    
                      
                      
                        | 455229 | San Luis Obispo County Department of Public Works | Enrollee - 401 Certification | CERREST | 12/27/2023 | Active | 
                
                  
      			   
                    
                      
                      
                        | 454390 | City of San Luis Obispo Public Works Department | 401 Certification | CERFILLEXC | 04/18/2024 | Active | 
                
                  
      			   
                    
                      
                      
                        | 452439 | County of San Luis Obispo Dept. of Public Works | Enrollee - 401 Certification | CERFILLEXC | 05/03/2023 | Active | 
                
                  
      			   
                    
                      
                      
                        | 450803 | San Luis Obispo County Department of Public Works | Enrollee - 401 Certification | CERFILLEXC | 03/03/2023 | Active | 
                
                  
      			   
                    
                      
                      
                        | 450800 | San Luis Obispo County Department of Public Works | 401 Certification | CERFILLEXC | 07/07/2023 | Active | 
                
                  
      			   
                    
                      
                      
                        | 450786 | County of San Luis Obispo Dept. of Public Works | Enrollee - 401 Certification | CERFILLEXC | 02/15/2023 | Active | 
                
                  
      			   
                    
                      
                      
                        | 450784 | County of San Luis Obispo Dept. of Public Works | Enrollee - 401 Certification | CERFILLEXC | 02/15/2023 | Active | 
                
                  
      			   
                    
                      
                      
                        | 449546 | San Luis Obispo County Department of Public Works | 401 Certification | CERFILLEXC | 06/06/2023 | Active | 
                
                  
      			   
                    
                      
                      
                        | 405028 | County of San Luis Obispo Dept. of Public Works | Enrollee - WDR | SSOMUNISML | 03/10/2016 | Active | 
                
                  
      			   
                    
                      
                      
                        | 438158 | County of San Luis Obispo Dept. of Public Works | 401 Certification | CERFILLEXC | 02/25/2022 | Active | 
                
                  
      			   
                    
                      
                      
                        | 439255 | County of San Luis Obispo Dept. of Public Works | 401 Certification | CERFILLEXC | 09/01/2020 | Active | 
                
                  
      			   
                    
                      
                      
                        | 441361 | San Luis Obispo County | Co-Permitee | SLIC | 03/20/2019 | Active | 
                
                  
      			   
                    
                      
                      
                        | 461474 | San Luis Obispo County Department of Public Works | 401 Certification | CERFILLEXC | 08/14/2025 | Active | 
                
                  
      			   
                    
                      
                      
                        | 442295 | County of San Luis Obispo Dept. of Public Works | 401 Certification | CERFILLEXC | 07/09/2021 | Active | 
                
                  
      			   
                    
                      
                      
                        | 442694 | County of San Luis Obispo Dept. of Public Works | Enrollee - WRR | REC | 03/17/2021 | Active | 
                
                  
      			   
                    
                      
                      
                        | 449487 | San Luis Obispo County Department of Public Works | 401 Certification | CERFILLEXC | 12/14/2022 | Active | 
                
                  
      			   
                    
                      
                      
                        | 438782 | County of San Luis Obispo Dept. of Public Works | 401 Certification | CERFILLEXC | 04/14/2021 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 185355 | San Luis Obispo County | Enrollee | NPDNONMUNIPRCS | 07/19/2001 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 437857 | County of San Luis Obispo Dept. of Public Works | Enrollee - 401 Certification | CERFILLEXC | 05/15/2020 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 437406 | County of San Luis Obispo Dept. of Public Works | 401 Certification | CERFILLEXC | 06/26/2020 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 436872 | County of San Luis Obispo Dept. of Public Works | 401 Certification | CERFILLEXC | 05/27/2020 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 430043 | County of San Luis Obispo Dept. of Public Works | 401 Certification | CERFILLEXC | 07/25/2019 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 428440 | County of San Luis Obispo Dept. of Public Works | Enrollee - WDR | CERFILLEXC | 02/07/2019 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 422955 | County of San Luis Obispo Dept. of Public Works | Enrollee - WRR | REC | 09/05/2018 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 421612 | County of San Luis Obispo Dept. of Public Works | Enrollee - 401 Certification | CERFILLEXC | 05/04/2018 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 419707 | County of San Luis Obispo Dept. of Public Works | 401 Certification | CERFILLEXC | 01/16/2019 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 418645 | County of San Luis Obispo Dept. of Public Works | 401 Certification | CERFILLEXC | 09/18/2018 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 413950 | County of San Luis Obispo Dept. of Public Works | Enrollee - WDR | CERFILLEXC | 07/28/2017 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 413173 | County of San Luis Obispo Dept. of Public Works | Enrollee - WDR | WDRMUNILRG | 02/29/2016 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 413045 | County of San Luis Obispo Dept. of Public Works | 401 Certification | CERFILLEXC | 06/26/2017 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 406160 | County of San Luis Obispo Dept. of Public Works | 401 Certification | CERFILLEXC | 08/30/2016 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 441997 | County of San Luis Obispo Dept. of Public Works | Enrollee - 401 Certification | CERFILLEXC | 02/01/2021 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 404258 | County of San Luis Obispo Dept. of Public Works | 401 Certification | CERFILLEXC | 04/22/2016 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 402236 | County of San Luis Obispo Dept. of Public Works | 401 Certification | CERFILLEXC | 12/18/2015 | Historical | 
                
                  
      			   
                    
                      
                      
                        | 452438 | County of San Luis Obispo Dept. of Public Works | Enrollee - 401 Certification | CERFILLEXC | 05/10/2023 | Historical |