Diamond Springs
Business Insider gave insight, “If we take into account the fact that almost 2/3 of all bottled water sales are single 16.90z (500mL) bottles, though, this cost is much, much higher.”
“It’s about $7.50 per gallon, according to the American Water Works Association. That’s almost 2,000x the cost of a gallon of tap water and twice the cost of a gallon of regular gasoline.” This means you should avoid Diamond Springs too.