How To Collect A Drinking Water Total Trihalomethanes (TTHM) Sample

As of January 2019, we are only using amber vials. Please keep this in mind as you view the video.

This video demonstrates correct procedures for collecting a total trihalomethanes (TTHM) sample per EPA Method 524.2 and/or 524.3. If you have any questions while collecting a sample, call the Minnesota Department of Health at 651-201-4700 and ask for a Compliance Officer.