Knowing the health of Missouri’s water helps the department take the correct measures to protect and keep our water clean for everyone’s use. Department staff and trained volunteers take samples of Missouri’s streams, lakes and rivers to gauge the overall health of the water. The samples are analyzed in the department’s laboratory to ensure the safety and quality of these precious resources.
Groundwater and Surface Water Monitoring
Monitoring groundwater, lake and stream levels and water quality
Water Quality - Streams, Rivers, Lakes and Wetlands
Fish tissue, stream and sediment monitoring; testing parameters and biological assessments
Water Quality Testing Parameters
Water quality indicators used to determine the water quality in Missouri
Request Additional Sampling Bottles
Request sampling bottles for bacteriological water analysis sampling
Major Water Users
Collecting water use date to better understand and manage the state's water inventory
Missouri Per- and Polyfluoroalkyl Substances (PFAS) Sampling Viewer Tool
Voluntary sampling locations for PFAS in public drinking water systems and related data
Missouri Water Tracing Lab
Determining groundwater movement to reveal underground connections & how pollutants travel
Missouri Geological Survey Publications
Additional documents provided by Missouri Geological Survey, accessible using SharePoint
Geosciences Technical Resource Assessment Tool (GeoSTRAT)
Find locations of springs, mines, sinkholes, wells, dams and more