RedactedNarrative: On 7/26/15 around 20:25 a 21ft. IO was doing tight circles to throw large wake for two pwc to jump waves.  The last circle IO shut down causing back of boat to lower in water, where one of the pwc was operating too close and fast and launched up onto the back of boat.  Where the force carried the pwc from back of boat to front and exited bow the of boat.  Pwc struck the female passenger and the female sitting in bow seats before exiting IO.   The two injuried females where transported in IO to West boat ramp and transported to Wichita hospital with head injuries.  The operator of IO was tested for possible BUI and was arrested and transported to jail in Kingman Kansas.  The operator of pwc was floated to shore on tube and treated by EMS for large bump on head and sore leg but refused transport to hospital.  Later was taken to local hospital by private vehicle and released that night.  Both vessels where placed in locked park compound to be investigated at a later time and date. This is all I have to report at this time Boating Specialist