When I am heading south I like to stop and fill my bottles for the day to but I don't forgo my tap either. People need to get past this notion of our water is not safe of fresh, does this taste better yes but it is not safer. This is what has fueled the bottled water craze which is based on faulty thinking, much of the bottled water get recalled or has e coli. 
To say it has gotten out of hand is not an exaggeration, now at times people will line up and have multiple gerry cans to fill. In my mind if you have that many go at an odd time. People parking on the side of the road are also acting unsafely, there is reason we have a shoulder, especially when it is slick. Because some don't act sensibly it is only a matter of time before it is removed somehow.  
  There is a location similar to this near Seward as well, that we love to get water from, curiously it is much colder.