A review of real-world membrane facility (UF/RO) operating data, highlighting the importance of implementing a normalization program. Raw operating data will be compared to normalized data illustrating the impact of parameters like feed temperature or conductivity. Data normalization enables daily variations in operating conditions to be accounted for so that key performance indicators can be properly monitored. Finally, we will investigate the benefit of using TorayTrak normalization to help determine CIP frequency and effectiveness.