The Environmental Program was started in the early 1990s and is responsible for the monitoring and protection of Tribal land, water, and air from many diverse sources of pollution. The program staff includes a Program Director, a part-time Environmental Specialist, and a part-time Technician; all of whom work with other DNR programs to assure that Tribal resources are kept healthy for future generations. The program is primarily funded through Environmental Protection Agency (EPA) grants.

Program activities include management of an Underground Storage Tank (UST) Compliance Assistance, Inspection and Technical Support Program to ensure all regulated USTs are in compliance with federal regulations, household hazardous waste management, ambient air monitoring, emissions reduction through diesel vehicle replacement, Tribal Response/Brownfields investigation and assessment, Climate Change Adaptation, and community outreach.