I live in one of the highly contaminated municipalities-- almost everyone here is doing GAC (granular activated carbon) on all water entering the home, and Reverse Osmosis at point-of-use. Idea being that the GAC gets a good amount of the problem filtered out for water you might use topically, and GAC+RO for drinking, cooking, etc. ideally gets almost everything for water you ingest. RO is not good at providing high flow rates without giant reserve tanks, so it's a reasonable trade off. The cost is not bad, each system is a couple hundred bucks, and simple enough to DIY install if you're so inclined.