RedactedNarrative: Per operator, boat was launched without incident. Operator noticed boat was taking on water shortly their after and docked at Rivera pier. 
  
  Operator went to go get his vehicle and trailer to remove boat from the lake. When he arrived he found his boat partially submerged. Onlookers had called for Geneva Lake Law Enforcement Agency (GLLEA) and Water Safety Patrol (WSP) to respond. Water safety towed boat to Lake Geneva Municipal pier where WSP and GLLEA assisted in loading boat onto trailer. The investigation did not determine what caused the boat to take on water.