I'm really getting sick and tired of people who think that something dirty, or non-sterile is ruined forever. If they treat the water and have regulations in place that deem is safe for drinking it's fine. Even if you don't trust it by brewing you're boiling the hell out of it, thus taking matters into your own hands. I once found a couple strands of long hair while cleaning out my mash tun. "Oh no, my beer is ruined" said nobody ever.
To go farther into this look at how many parents carry alcohol sanitizer (what a waste of ethanol!) and use it religiously. Baby soother touched the ground? Take new one out of ziploc bag, rinse debris off one from ground, sanitize, rinse, autoclave, put into ziploc. In my day... Now I'm raging. Thanks HBT.
To continue the rant on a grade school camping trip someone failed while trying to strain the pasta from giant stock pot. Most of it ended up right in the dirt. The whole pile was deemed as being wrecked. I pointed out viable options include: Carefully pulling from the top of the pile where no dirt contact was made, or using the pot and strainer to rinse them clean. Boil it again if need be. "But we only had 2 jugs of water." We're on an island! Water should be near impossible to not find! Oh well, time for that pre-9AM IPA...