Statewide (PA) Chlorine Contact Time Tracer Study - Gwin, Dobson ...

• Tracer studies are a proven and reliable means of evaluating the detention
and contact time through process treatment units
• Can help treatment operators evaluate and monitor disinfection profiling and
achieve the necessary log‐inactivation through varying water quality
conditions
• A means of helping an operator better apply disinfection chemical and reduce
the potential for byproduct formation.
• Can serve as an effective check and balance on process design assumptions
• Tracer studies can be easily repeated to evaluate changes in process
treatment systems or unit operation