Impaired Waters and Total Maximum Daily Loads (TMDLs) Viewer shows the Missouri impaired waters, referred to as the 303(d) list. It is a report required by the federal Clean Water Act (CWA) through EPA. Impaired waters are identified through water quality monitoring NOT to be meeting the state Water Quality Standards. The Total Maximum Daily Load (TMDL) program provides a framework for local communities to voluntarily clean up their impaired waters.
Water Quality Assessment Viewer provides an overview of the status of Missouri's waters based on the Missouri 305(b) Integrated Report. which includes the 303(d) list of impaired waters and a summary of water quality issues. It judges the degree of progress Missouri has made toward meeting federal CWA goals. Water quality assessments direct future management of those waters most in need of restoration or protection.
MAPiT - Missouri Accessible Permitting Information Tool is designed to help permit writers access the information they need to process permits for the MDNR Division of Environmental Quality.
For access to all of MDNR maps, use either 1) GeoPlatform, or 2) Open Source Geospatial data.
EnviroAtlas provides geospatial data, easy-to-use tools, and other resources related to ecosystem services, their chemical and non-chemical stressors, and human health. Ecosystem services are closely tied to the environment and provide benefits to human health and well-being of clean water and air, and protection from natural hazards.
How’s My Waterway? is designed for the public to learn about the water quality in their watershed. It is based on data that states, federal, tribal, local agencies and others provide to EPA and is displayed on 3 scales: community, state and national.
SPARROW mappers are interactive tools to explore river streamflow, nutrient and sediment loads and yields, and the importance of different contaminant sources in a particular river basin. View data using maps and interactive graphs and tables. Rank by state, major watershed, hydrologic unit (HUC), and catchment. The Sparrow mapper was used in the USGS Report Spatially Referenced Models of Nitrogen, Phosphorus, and Sediment Loads in Midwestern U.S. Streams.
Locate My Watershed from Science In Your Watershed
All Things Missouri is a gateway for interactive mapping, reports, and insights into issues facing Missourians.
Center for Applied Research and Engagement Systems (CARES) is a small and adventurous group of geographic information specialists, programmers, and data nerds who love making maps, developing new data visualizations, and helping individuals and organizations figure out ways to do their work better. They appreciate and understand the challenges and opportunities related to data collection and analysis in rural America. See CARES Map Room.