"HOOSICK FALLS, N.Y. — More than six weeks after declaring an environmental emergency in this upstate village, Gov. Andrew M. Cuomo made his first visit here on Sunday, announcing that a new filter system had successfully cleared a toxic chemical known as PFOA from the municipal water supply."

"The military is beginning to check whether chemicals from its firefighting foam may have contaminated groundwater at hundreds of sites nationwide, according to the Defense Department."

"A radioactive isotope linked to water from power plant cooling canals has been found in high levels in Biscayne Bay, confirming suspicions that Turkey Point’s aging canals are leaking into the nearby national park."

"A slow-moving storm dumped more rain on the waterlogged U.S. South on Thursday after heavy downpours killed at least four people this week, prompting evacuations and rescues from inundated areas."

"A deadly algal bloom has hit the world's second biggest salmon exporter, Chile, where nearly 23 million fish have already died and the economic impact from lost production is seen soaring to $800 million, industry and government sources told Reuters."

"Flint Mayor Karen Weaver has suspended water billing temporarily — for about a month — while the city works out how it will apply $30 million from the State of Michigan to help residents who’ve paid for nearly two years for water that’s unsafe to drink."

"Funding for “vital” research to improve flood forecasts, warnings and defences has been slashed by almost two-thirds since 2009, figures obtained by the Guardian show."

"Heavy rains and high winds from a storm system moving north from Mexico flooded parts of Texas, Oklahoma, Arkansas and Louisiana, leaving at least one person dead, officials said on Wednesday."

"NEWARK — Elevated levels of lead caused officials in New Jersey’s largest school district on Wednesday to shut off water fountains at 30 school buildings until more tests could be conducted, officials said."

"A host of green groups and conservation organizations are asking President Obama to back away from his plan to delay federal revenue sharing for coastline conservation work in his 2017 budget."