Evaluating the Impact of Rainfall Characteristics on TSS and VSS Removal Efficiencies: A Comparative Analysis of Sewage Pump Stations in Kajang, Malaysia

This study evaluates the sediment control performance of two sewage pump stations (PS) configurations, PS-1 and PS-2, in Langat Kajang, Malaysia, under varying rainfall conditions. The primary focus is on the removal efficiencies of Total Suspended Solids (TSS) and Volatile Suspended Solids (VSS). Over 100 days (24 July 2023–31 October 2023), operational data were analyzed using Principal Component Analysis (PCA) and Agglomerative Hierarchical Clustering (AHC). PCA results revealed that the first two principal components accounted for 77.83