The Missouri Department of Natural Resources takes a holistic approach to protecting water quality. Water quality data is collected through various sources including the state level and through regulated facilities and volunteer groups. The types of data currently available are listed below.
Drinking Water

- Boil water orders – Map of current boil water orders
- Certified Laboratories for Public Drinking Water
- Chemical Analyses – List of certified labs
- Microbiological Analyses – List of certified labs
- Drinking Water Annual Reports - data and information reported annually about public water systems
- Drinking Water Watch – Current data and information about public water systems
- Backflow Prevention – Approved backflow prevention assembly testers
- Public Drinking Water Permits – Access issued permits
- Operator Certification – Search certified drinking water operator information online
- Well Information Management System (WIMS 2.0) – Search for wells, well or pump installation contractors, obtain a permit, renew a permit, submit records
Water Quality – Permits
- Missouri Clean Water Information System (MoCWIS)
- MoCWIS Definitions
- Applications In Process Search – Access the application
- Permit Search – Access the application
- ePermitting – Access the application
- Water Quality Standards Search – Access the application
- Missouri Gateway for Environmental Management (MoGEM) – Provides the regulated community an opportunity to conduct business with the department through an online portal
- Online SSO/ Bypass reporting
- Electronic discharge monitoring report submission system eDMR – Access the application
Water Quality

- Laboratory Information Management System (LIMS) – Access all analytical data analyzed at the department laboratory including drinking water data
- Water Quality Data Search – Access the application within MoCWIS – Search water quality data generated by the department and other organizations whose data is used by department (may include other organizations listed)
- Impaired Waters – 305(b) water quality reports and 303(d) list of impaired streams, lakes and rivers in Missouri
- Total Maximum Daily Loads – Plans to address impaired waterbodies
- Biological Assessment Reports by Region – Bioassessment reports completed on 62 wadeable, perennial streams in Missouri
- Operator Certification – Search certified wastewater operator information online
- Water Quality Standards map viewer - map showing water quality standards
Water Quantity and Related Information
- Dams in Missouri – Locate dams in Missouri using GeoSTRAT
- Geosciences Technical Resource Assessment Tool (GeoSTRAT) – Locate springs, mines, sinkholes and more
- Geologic Evaluation Data Gateway Exchange GeoEDGE – Request a geohydrologic evaluation, search for a completed evaluation and more
- Geologic Well Logs – Access individual log files
- Geothermal Heat Pump Systems – Display locations
- Groundwater-Level Observation Well Network – Access information about groundwater levels
- Major Water Users – Register annual water use
- Realtime Water Data – Current groundwater conditions for Missouri
- Stratigraphic and Geophysical Logs Database – Access files using GeoSTRAT
- Stream Flow and Streamgage Data – Access data
- Well Installation Online Services – Search for wells, well or pump installation contractors, obtain a permit, renew a permit, submit records
Additional Water Quality and Quantity Data Resources
- Heritage Database – List of state and federal threatened and endangered species by county
- Lakes of Missouri Volunteer Program – Database includes annual summaries for each lake in PDF format
- National Water Quality Monitoring Council – The Water Quality Portal is a cooperative service sponsored by U. S. Geological Survey, Environmental Protection Agency and the National Water Quality Monitoring Council. The portal includes data collected by more than 400 state, federal, tribal and local agencies
- STORET – EPA’s database that compiles water quality data collected by state, tribal and federal agencies about lakes, streams, rivers and other water bodies to assist in determining water quality conditions
- U.S. Corps of Engineers Kansas City District
- U.S. Corps of Engineers Little Rock District
- U.S. Corps of Engineers St. Louis District
- U.S. Geological Survey Water Quality Data for Missouri