§ 141.543 - How is the disinfection benchmark calculated?
If your system is making a significant change to its disinfection practice, it must calculate a disinfection benchmark using the procedure specified in the following table.
|To calculate a disinfection benchmark your system must perform the following steps|
|Step 1: Using the data your system collected to develop the Disinfection Profile, determine the average |
|Step 2: Determine the lowest monthly average value out of the twelve values. This value becomes the disinfection benchmark.|