| Value | Category | Cases | |
|---|---|---|---|
| Lake/stream water | 1 | 
                                                                 
                                    
                                    50%
                                 
                                                             | 
                                                        
                    |
| s4q17_3 | 1 | 
                                                                 
                                    
                                    50%
                                 
                                                             |