In general what effect does alcohol have on the level of skin contaminants ?
It reduces them
I'm stuck between 1, 4 and 5.
1) Since it's water there is going to be waterborne diseases, but fixing the pollution in the town seems to be the best option
4.) Enforcing water laws can lower the chance of having waterborne diseases that might happen.
5) Related to #1, it'll help keep the sickness down if it was monitored and reported to local hospitals