Mother Jones » In reality, most health-based violations of drinking-water standards occur outside of big cities, in places like Martin County: small, poor, out of the way. Of the 5,000 drinking-water systems that racked up health-based violations in 2015, more than 50 percent were systems that serve 500 people or fewer. In those small areas, who is going to raise hell except for the people affected and maybe the local paper?