Skip Navigation LinksDEQ Home

The Montana Department of Environmental Quality (DEQ) is the agency charged with protecting a clean and healthful environment, as guaranteed by the State Constitution. The DEQ accomplishes this by monitoring environmental conditions and taking proactive measures to preserve and improve the quality of these natural resources. We base decisions on information from our citizens and scientific research and analysis. We work to ensure the public interest is served while making efficient use of the funds entrusted to us. Our ultimate goal is to protect public health and to maintain Montana’s high quality of life for current and future generations.

Featured News:

DEQ recently received formal approval from the Environmental Protection Agency for new and revised numeric nutrient water quality standards. These standards for total nitrogen and phosphorous passed through rulemaking and acceptance by the Board of Environmental Review late last year. Tom Kuglin of the Helena Independent-Record wrote this story about the effects of high nutrient levels in streams in August, 2014. Montana is in the lead with these standards and the associated variance processes, which can extend over 20 years as wastewater treatment technologies improve and become more cost-effective. Learn More

Director Tom Livers