The department works in many ways to protect Missouri’s water resources. We issue permits, inspect sources of water pollution and analyze water level data. The department provides financial and compliance assistance and, when necessary, enforcement action to address violations of water quality regulations. We work with stakeholders to develop a state water resources plan. We invite you to help us make a difference in protecting Missouri’s water resources.
Water Quality Standards, Impaired Waters and Total Maximum Daily Loads
Learn more about how we help protect Missouri's water quality
Drinking Water Annual Reports
Drinking Water Watch, Consumer Confidence Reports, Census Reports, Compliance Reports
Clean Water Compliance and Enforcement
Active enforcement cases and reports for clean water violations
Laboratory Sampling Results Search System Selection Criteria (LIMS)
Information about the Laboratory Sampling Results Search System Selection Criteria
Environmental Geology Assistance
Geology and hydrology assistance including geohydrologic site evaluations
Water Financial Opportunities
Providing financial assistance to ensure clean, reliable water supplies