What Sensor Data Does the EPA Actually Want for PFAS Reporting? A Shanghai ChiMay Field Guide
When the U.S. EPA finalized its PFAS National Primary Drinking Water Regulation, utilities ran into an unfamiliar problem: PFAS itself is measured by laboratory mass spectrometry, not by an online sensor. Yet PFAS compliance still generates a heavy continuous-sensor data burden, because EPA, state primacy agencies, and consulting engineers need to interpret PFAS results in…