Supervisory control and data acquisition (or SCADA) systems and connected instruments are vital to many water and wastewater treatment facilities.
They perform control functions much faster and respond much quicker than humans. They alert operators to upcoming issues or events that have already happened. They can archive historical data for reports and trending to better gauge what needs to be done in the future.
Plant operations rely upon these systems; failures can cause noncompliance, waste costly chemicals and electricity, and cause bypasses and other operational upsets.
Unfortunately, most SCADA systems are installed and then forgotten until there is a problem. When
