Department of Environmental Quality


As public servants, our responsibilities and authorities are derived from the laws of the state of Oklahoma.

As our customers, we owe it to you to provide clear and courteous service, and to always exhibit professionalism and integrity. We call this standard PEAK Performance. It is a reflection of our commitment to making decisions based on common sense, good science and fiscal responsibility, while performing our work in a timely, effective and respectful manner.

The Oklahoma Department of Environmental Quality is implementing bold, forward-thinking actions to achieve our MISSION “to protect and improve public health and our environment.” Our VISION is “to lead the nation in fostering a healthy and sustainable future through effective and innovative environmental actions.” Together, these represent our commitment to make sure all Oklahomans have clean air to breathe, clean water to drink, and our land is protected – making Oklahoma an even better place to live.