More than 20 percent of the nation’s water treatment systems have violated key provisions of the Safe Drinking Water Act over the last five years, according to a New York Times analysis of federal data.
That law requires communities to deliver safe tap water to local residents. But since 2004, the water provided to more than 49 million people has contained illegal concentrations of chemicals like arsenic or radioactive substances like uranium, as well as dangerous bacteria often found in sewage.
Regulators were informed of each of those violations as they occurred. But regulatory records show that fewer than 6 percent of the water systems that broke the law were ever fined or punished by state or federal officials, including those at the Environmental Protection Agency, which has ultimate responsibility for enforcing standards.
DARK SIDE OF A NATURAL GAS BOOM
Across vast regions of the country, gas companies are using a technology called hydraulic fracturing to produce natural gas from previously untapped beds of shale. The push has been so successful that the country’s potential gas reserves jumped by 35 percent in two years. The new supplies have driven down natural gas prices for consumers and might help the global environment by allowing more production of electricity from natural gas, which emits fewer global warming emissions than coal.
What the drilling push will do to local environments is another matter.
And a more worrisome possibility has come to light. A string of incidents in places like Wyoming and Pennsylvania in recent years has pointed to a possible link between hydraulic fracturing and pollution of groundwater supplies. In the worst case, such pollution could damage crucial supplies of water used for drinking and agriculture.
