As the operator of the PWC was accelerating he hit a wave, the passenger was thrown off the back of the PWC into the water.  The operator retrieved the passenger and approached the Pewaukee Lake Patrol.  Operator was not sure if passenger was injured by hitting the back of the PWC or when she entered the water.  Village of Pewaukee PD performed SFST's on operator and he was found not to be under the influence.
Pewaukee