get a reverse osmosis system. Or buy RO filtered water from the local grocery store by the 3 or 5 gallon jug.

Edited to add: our household does this. we live in a rented townhouse, so we're unable to add our own plumbing or electrical stuff. Yes, it's an expense to buy our own drinking/cooking water, but we just don't trust city water. If you live in a nice area with a diligent water authority, that's fine, but those types of places are a vanishing minority in the USA nowadays.