I manage utility services - among other things - for a group of properties - and have had the mains water analysed for chemical and biological contamination at various times. The results have always been absolutely fine. Not just with EU limits, but far, far, far within them for almost everything and definitely well within them for all measures.

I've got no issues at all with drinking tap water in the UK, even given the state of the rivers etc.

I trust the city government with my water much much more than companies trying to save every penny bottling water.

The fda tests bottle water. The epa tests tap water. The standards for the fda are lower than the epa. You’re being bambozzled.

I used to live in Los Angeles and lived in Charlie Chaplin's house that was on the old lot(the current Broadway shoes).

The water coming into the house was probably clean, but the home's pipes were all lead. I did one of those lead tests and it failed.

So your sulfur taste could be from the home and not from the municipal water.

North East, US here. probably fine but I don't trust it. we use a water filter for drinking

I live in Minnesota. Close to Minneapolis. My brother does testing for swimming pools. He tested the city water for contaminates. He says do not drink it. If the level of chlorine in the city water was in pool water the pool would be shut down. It would not be safe to even swim in it. Yet the city claims it's safe to drink.