EPA Updates Atrazine CE-LOC to 9.7 µg/L (up from 3.4 µg/L) - July 8, 2024 <BR>CE-LOC = concentration-equivalent level of concern <BR>HUC = hydrologic unit code<BR>2026?<BR>Worth/Turner <BR>Tattnall/Evans<BR>Watersheds with higher predicted atrazine concentration are expected to have waterbodies with greater vulnerability to atrazine runoff due to landscape features (e.g., soil restrictive layers), precipitation, and atrazine usage.<BR>