U.s. Environmental Protection Agency
Authorities have lowered to 30,000 gallons their estimate of the amount of oil that spilled from a broken pipeline beneath the Yellowstone River in Eastern Montana.
Montana Attorney General Tim Fox has asked federal officials to withdraw a proposed rule that would redefine how streams and waterways are protected under the Clean Water Act.
CASPER, Wyo. — Wyoming regulators on Friday proposed new pollution standards aimed at curbing ozone levels in the Pinedale area.
CASPER — The state of Wyoming sued the U.S. Environmental Protection Agency on Friday, challenging the federal agency’s plan to control regional haze.
RIVERTON, Wyo. - State officials said Tuesday two reports in the Pavillion area groundwater investigation would be delayed until early 2014, further angering landowners who have for years complained nearby natural gas operations contaminated their water wells. A third report will likely be d…
MISSOULA — The last of the Superfund mine waste in Superior’s town limits has been cleaned up and removed, federal officials announced Tuesday.
When some city officials show off their hometown’s best features, they like to point to new airport terminals or riverfront parks.
CHEYENNE — People who live in a central Wyoming gas field with tainted groundwater are pressing Gov. Matt Mead for more details about how Wyoming plans to take over and carry on with a U.S. Environmental Protection Agency investigation into the contamination.
CHEYENNE — The U.S. Environmental Protection Agency has dropped plans to have outside experts review its theory that hydraulic fracturing may have played a role in groundwater pollution in Wyoming, and the agency no longer plans to write a final report on its research that led to the controv…
CHEYENNE, Wyo. — The next major power plant to be built in the nation's top coal-mining state will be fueled by natural gas.
MISSOULA — The U.S. Environmental Protection Agency today proposed adding the former Smurfit-Stone millsite in Frenchtown to the Superfund National Priorities List (NPL), making it eligible for additional study and cleanup resources under EPA's Superfund program.
POLSON - Five years after one of its tanker trucks overturned on Montana Highway 35 and spilled more than 6,000 gallons of gasoline near Flathead Lake, Keller Transport of Billings has agreed to pay penalties totaling $83,500 to settle Clean Water Act claims.
HELENA — The state Public Service Commission is urging the U.S. Environmental Protection Agency to back off on proposed greenhouse-gas rules for new coal-fired power plants — almost one year after the comment period on the rule closed.
CASPER, Wyo. — Wyoming and other Western states need to better track the amount of groundwater that’s depleted by hydraulic fracturing, according to a new report by a regional land-use organization.
CASPER, Wyo. -- Higher pollution levels from 2008 to 2011 drove more people to Sublette County clinics and doctors, a new study shows.
Meadow Gold Dairy, the local Billings Dean Foods plant, has met the requirements for the U.S. Environmental Protection Agency's “Energy Star Challenge for Industry” by reducing its energy intensity by 13.4 percent.
COLUMBIA FALLS – Montana Sens. Jon Tester and Max Baucus have asked the U.S. Environmental Protection Agency to evaluate contamination levels at the shuttered Columbia Falls Aluminum Co. plant.
BUTTE — Fifteen years ago, as state researchers ventured into the Berkeley Pit to collect their annual samples from the contaminated water, a surprise greeted them.
FRENCHTOWN – Missoula County urged environmental agencies Tuesday to seek an agreement with owners of the former Smurfit-Stone Container Corp. paper mill site in Frenchtown that could keep it off the Superfund National Priorities List.