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.