How does the oxidation-reduction potential (ORP) relate to water quality, and what does a high ORP generally indicate?

Oxidation-reduction potential (ORP) is a measure of the oxidizing or reducing capacity of water, and it relates to water quality by indicating the relative activity of oxidizing and reducing agents present. ORP is measured in millivolts (mV), with positive values indicating oxidizing conditions and negative values indicating reducing conditions. In water treatment, ORP is often used to monitor and control disinfection processes. A high ORP generally indicates the presence of strong oxidizing agents, such as chlorine, ozone, or....