What might result from a total chlorine level greater than safe levels after the first carbon tank?

When total chlorine levels exceed safe thresholds after the first carbon tank, it indicates that the carbon media has become saturated or has reached its operational limits regarding chlorine removal. In such instances, initiating a TCL-2 log for breakthrough documentation is essential to systematically record and assess the situation. This helps in tracking the performance of the carbon tanks and provides critical information to evaluate when equipment needs to be replaced or serviced.

The TCL-2 log allows facility operators to monitor chlorine levels and document any instances of abnormal readings effectively. This action is crucial for maintaining the integrity of the water purification system and ensuring that the treated water meets safety standards. Therefore, documenting elevated chlorine levels after the first carbon tank is a proactive measure to address potential risks before they escalate into significant problems.