Alpha
This is a rebuild of Drinking Water Watch and not yet the official record. Use the agency’s current Drinking Water Watch for anything you need to rely on.
Measure
From the help published with Drinking Water Watch 3.5, reproduced as delivered.
Concentration “Measures” are used to express the amount or quantity of an analyte or contaminant that exists in a water sample. The measure can be expressed in many units of measure (UOM).