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The Montana Department of Environmental Quality is charged with protecting a clean and healthy environment as guaranteed to our citizens by our State Constitution. The DEQ works 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