If there is a problem, which I doubt there will be, he'll get a fever.
Give him yogurt and vitamin C to help fight any little buggies, but don't freak out too much kids have eaten poop and been totally fine and you'd already know if the water went into his lungs.
Give him yogurt and vitamin C to help fight any little buggies, but don't freak out too much kids have eaten poop and been totally fine and you'd already know if the water went into his lungs.