"The Trump administration's stated goal for a rule defining which wetlands and waterways get Clean Water Act protection: Write a simple regulation that landowners can understand. ... But scientists who specialize in the study of wetlands and waterways say it's not that simple."

"Virginia lawmakers have approved legislation to require the state’s largest electric utility to excavate and clean up unlined coal ash pits."

"Brazilian police arrested eight employees of mining firm Vale SA on Friday, accused by state prosecutors of covering up weaknesses at a dam that collapsed and likely killed more than 300 people."

"Thirteen Michigan water systems failed to meet federal standards for lead in drinking water in the last half of 2018, and seven of those systems had lead levels at least twice as high as the state will allow starting in 2025."

"An Ohio River commission that represents eight states lining the waterway and its tributaries voted Thursday to keep its authority to set regional water pollution standards, rather than ceding that power to each individual state."

"The Environmental Protection Agency on Thursday announced what officials called a historic effort to rein in a class of long-lasting chemicals that pose serious health risks to millions of Americans. But environmental groups and residents of contaminated communities said that the agency’s “action plan” is short on action, saying ample evidence exists to regulate the chemicals in the nation’s drinking water."

The U.S. Environmental Protection Agency will announce on Thursdays limits on how much toxic chemicals from cookware and carpeting are allowed in drinking water. ... Acting administrator Andrew Wheeler will make the announcement at 9 a.m. EST."

"Gov. Gavin Newsom, diving into one of California’s most contentious water issues, said Tuesday he wants to downsize the Delta tunnels project. The Democratic governor also set out to overhaul state water policy by naming a new chair of the state’s water board."

"In a case with ramifications for the Chesapeake Bay, environmental groups have joined with several Northeastern states to challenge the lack of federal action to reduce interstate air pollution."

"Scientific monitoring in the Pacific Ocean, using buoys to take seawater temperatures, screeched to a halt when the government recently shut down for 35 days. But those efforts to monitor El Nino, the warming of the equatorial Pacific Ocean that affects global weather patterns, are just some of the shutdown’s impacts on science that Kevin Trenberth describes."