We are motorhomers and travel a lot.  Many RV parks have water hook ups (city water or well water) that is safe to drink however we NEVER use it for drinking or coffee.  A. it comes thru our hose and B.  often times there is iron or other tastes/smells in the water system.   I have 2 Zero pitchers that I use to filter water 
for drinking and brewing coffee.  Great thing to have.