It is very possible that you will need to remove the fuel and dispose or separate to put it in something that will burn it. Sorry to hear that you had such a weather problem. Things like this can be a mess, and your hull will be sanded in place where it rocked on the bank. The fuel tanks may not have to be removed if you can get the water out. It would be rare that you have snd in the tanks, though water is very possible and once you remove the water a new in line canister style fuel filter would be advised. BCB