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....

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...

This dataset consists of a unified geospatial database that delineates total maximum daily load (TMDL) modeled waste load allocation (WLA) drainage basin boundaries intersecting...