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 the quantity of groundwater and surface water
Public Drinking Water
Monitoring public drinking water
Wastewater Monitoring
Monitoring wastewater
Water Quality - Streams, Rivers, Lakes and Wetlands
Monitoring the quality of surface water
Water Quality Testing Parameters
Testing water quality keeps us safe and healthy
Request Additional Sampling Bottles
Request sampling bottles for bacteriological water analysis sampling
Stormwater Permits
Stormwater monitoring
Major Water Users
Understanding and managing our water resources
Missouri Water Tracing Lab
Understanding groundwater movement and how pollutants travel
Locate well data, springs and more
Document Search
Search water related documents in one location for easy access
Missouri Geological Survey Publications
Locate electronic versions of our publications

Contact Information