79. If water supplied through a village-channel be used in an unauthorized manner, and if the person by whose act or neglect such use has occurred cannot be identified, the persons on whose land such water has flowed, if such land has derived benefit therefrom, or, if no land has derived benefit therefrom, all the persons chargeable in respect of the water supplied through such village-channel in respect of the crop then on the ground, shall be liable to the charges made for such use, as determined by the Government under section 99.