Contaminated water

I've recently moved here and renting. I'm trying to find clean drinking water for my family but having a very hard time! I want to find the best water I can to refill 5 gal jugs with. Where do you get your water? I'm looking at Water N Ice? What do you guys think? I'm worried Walmart and things are just city water. and the city water here is filled with contaminants.

I don't want any special filters for my house and I can't put in a fancy system as I'm renting. thank you!