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Rainfall Derived Infiltration and Inflow (RDII) for Sewer Pipeline: A Case
Study for Georgetown Sewershed Area
Wan Nor Azlin bt Wan Azhar Amran
Supervisor: Dr. Mohd Sofiyan bin Sulaiman
Bachelor of Technology (Environment)
School of Ocean Engineering
Universiti Malaysia Terengganu
The town of Georgetown, Penang has experienced problem at the sanitary sewer
collection system which there’s an overflows which indicates inflow and infiltration in
the sewer pipelines. The purpose of this research is to determine the rainfall derived
infiltration and inflow (RDII) for sewer pipeline at Georgetown sewershed area which
focusing at the sewer network in Hutton Lane (PEG125). The research methodology
for this research using computer modelling to access the volume of the rainfall that
effects the sewer network and access the capacity of the sewer network performances
can hold. The result from this research produced RDII Flow Hydrograph and the
capacity assessment of result of the sewer pipelines in Hutton Lane. Outlines from the
problem areas identified during this phase of the study, provides recommendation for
future investigation and improvement to sanitary sewer collection system, where
applicable.
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