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Total Maximum Daily Load (TMDL) and Watershed Restoration and Protection Stra...
This data resource is deprecated and scheduled for removal, as of October 8, 2025. The data resource - TMDL Alocation Areas - should be used in its place.... -
TMDL Allocation Areas
The Minnesota Pollution Control Agency (MPCA) has developed a statewide TMDL (Total Maximum Daily Load) Database to standardize and maintain spatial data related to TMDL... -
TMDL Wasteload Allocation Areas for MS4s
This dataset consists of a unified geospatial database that delineates total maximum daily load (TMDL) modeled waste load allocation (WLA) drainage basin boundaries intersecting... -
Water Quality Stressors Identified
This data was created as a result of the Minnesota Pollution Control Agency’s (MPCA) biological stressor identification process (SID). Biological stressors are determined after... -
Surface Waters Assessed for Chloride
The MPCA and its partners systematically evaluate waters in each major watershed in Minnesota every 10 years. This process begins with comprehensive lake and stream water...
