The new testing, the result of a partnership between the county and the U.S. Geological Survey, showed pollution levels were ...

Montana’s environmental regulator has denied a petition to designate the Big Hole River as impaired by nitrogen and phosphorus ...

South Florida continues to experience harmful algal blooms from phosphorus reaching rivers and the coast, resulting in fish ...

The Montana Department of Environmental Quality has rejected a petition filed by two river advocacy groups seeking an ...

When the Great Lakes Water Quality Agreement was passed in the 1970s, eutrophication was the big problem. Eutrophication ...

Two conservation groups are petitioning the Montana Department of Environmental Quality to designate the Big Hole River, a treasured southwestern Montana fishery, as impaired for nutrient pollution.

“Five years of monitoring data indicating clear exceedances of nitrogen and phosphorus water quality standards signal the need for pollution control planning to reduce nutrient discharges and ...