RedactedNarrative: Vessel #2 was cruising in a forward straight manner in the middle of the reservoir when Vessel #1 was approaching vessel 2 from approximately his 4 o'clock.  Vessel #1 made a hard left hand turn causing vessel #2 to lean hard to the left and they collided. Operator of vessel #2 struck the steering column causing injuries.  Operator of vessel #1 was cited for failure to maintain a proper look-out and failures to take action to avoid collision.  Operator of vessel #2 was cited for failure to maintain a proper lookout, failures to take action to avoid collision and negligent operation crossing to close.  Warning for no sound producing device and fire extinguisher.