The 15 minutes running hot water I think is a little much and a waste of water. However the running water for a minute thing is not enough time, at least 5 minutes. Water mains break all the time around here, sometimes with the help of a horrible (de)construction company. I had water that looked like mud before and I didn't drink it for days because I knew no one bother testing it even after it was ruled safe. There was still sand in it after they said it was "safe" I'd be amazed if the asshole company even reported it. Dumb fuckers, I hope one of them gets injured so I can go on the news and say "Yeah with these assholes I'm shocked more people aren't hurt".
Yes I'm a bitch.