Montana Department of Environmental Quality

Rick Thompson fields public questions and comments at a state Department of Environmental Quality meeting on proposed radioactive oil waste rules in Glendive September 24.
Kayla Desroches / Yellowstone Public Radio News

Earlier this year, Montana proposed quadrupling the upper limit of radioactive oil waste that could be disposed at certified sites. On Tuesday, the state Department of Environmental Quality held its first of two public hearings about the proposed rule change in Glendive.

Jackie Yamanaka / Yellowstone Public Radio

Talen Energy is proposing to install more wells to flush out and capture underground water reserves that were polluted by coal ash dumped into leaky holding ponds at eastern Montana's Colstrip power plant.

A pile of coal, 2012.
bartb_pt/Flickr (CC BY-NC-ND 2.0)

The Montana Department of Environmental Quality opened a 30-day public comment period Tuesday for a proposed major revision at Spring Creek Coal Mine in southeast Montana. The revision could allow about 72 million tons of coal to be mined.

Patty Whitford stands in front of the pond on her property just outside Sidney, Montana.
Kayla Desroches / Yellowstone Public Radio

Montana proposed regulations on Friday that outline what facilities need to do to dispose of radioactive waste while also monitoring for environmental side effects.

Front of Custer Schools
Kayla Desroches / Yellowstone Public Radio

 A small Montana school an hour northeast of Billings recently detected lead in a school faucet.

Seal for the U.S. department of energy

A study recently found that roughly three-quarters of new homes in Montana meet state energy codes meant to curb electricity bills and increase durability.

The proposed Montanore copper and silver mine in the Cabinet Mountains has experienced another setback. A state district court judge found Friday that a state-issued water quality permit violated state and federal water quality regulations.

Affected area in Billings
Courtesy of DEQ & EPA

State and federal officials say an 855-acre area in central and downtown Billings should be considered for Superfund status due to indoor air quality contamination.

State agencies are warning of increasing "pea soup" looking algal blooms in Montana’s freshwater lakes and reservoirs.

The blue-green algae are usually suspended from or joined to floating mats in the water, and can produce toxins that damage the skin, liver and nerve cells.

Testing for the presence of harmful vapors at a site in St. Louis Park, MN.
MPCA Photos / Flickr (CC BY-NC 2.0)

Officials are concerned that chemicals in the water are negatively affecting the air quality inside almost 50 homes and businesses in east and southeast Billings.