| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Wastewater | 56 | 51 | 
                                                                 
                                    
                                    1.9%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 2 | Dumping site | 95 | 92 | 
                                                                 
                                    
                                    3.4%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 3 | Public restrooms | 2 | 2 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 4 | Transportation | 14 | 19 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 5 | Agricultural wastes | 59 | 57 | 
                                                                 
                                    
                                    2.1%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 6 | Industrial activities | 5 | 3 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 7 | Other | 10 | 9 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                            
                        
                        
                            
                    
| Sysmiss | 2473 | 2481 |