well, in general if someone gets it at the time the immune system is low then it might turn chronic, but if you are adult and with normal immune system then in case you get it you will beat it in few months. considering the rrisk of hbv present in that sewage, and the risk of swallowing it, and the risk of turning into acute or chronic is so low, i would not worry much, but if no problem and for the future, take vaccine is a good choice.
I don't care about Hep A, because never turns to chronic. I am only afraid for Hep B.(Hep c is transmitted only through blood).
So do you think that from this scenario i am not at risk for Hep B? I would appreciate your answer.