Page 109 - Yucaipa Sustainable Groundwater Management Agency - Yucaipa SGMA
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accumulation at the soil/water


                                                                              Restoration of percolation


                                                                                                    consistent with hypothesis
                    Removing Top Layer of Sediment
                                                                                         accumulated fines from
                                                                                                         that percolation reduction



                                                                                              upper 1cm of column



          Fouled Column Q Restored by






                                                                                                               caused by foulant
                                                                                   by aspiration of



















                                                                                                                          interface






















                                Restored

                                     Column                                                                           Yucaipa Sustainable Groundwater Management Agency - January 23, 2019 - Page 76 of 137





























                                                                                 Clogging


                                                                                      layer   removed










                                Clogged   Column
   104   105   106   107   108   109   110   111   112   113   114