Stormwater Management by Sectoral Approach

This report is a brief discussion on the research conducted and basic understanding of the
chosen topic, which is Stormwater Management by Sectoral Approach. 'Ibis study attempts to
explore solutions to the stormwuter problems which have now been realized that the drastic
development dramatically alters the local hydrological cycle and also affect the water quality.
This study evaluates the effectiveness of sectoral approach in stormwater management and
the best approach to reduce stormwatcr pollution. In order to understand the eflects of
stormwater to the environment, five samples from different urea in Seri Iskandar were
selected and four lab tests were conducted which are 1301) 'l'est, COI) 'l'est, Turbidity Test
and Suspended Solids 'l'est to check for stormwater quality. Runoff quality showed large
variations of lab results for each area especially for 1301). ('OI) and Suspended Solids.
Further study was done to determine the pollution source fir each area and solutions for the
pollution were included in this report. In general, the stormwater quality in Seri Iskandar is
badly polluted and some of the parameters fall in ('lass V based on the Malaysian Interim
National Water Quality Standards. The COI) value for sample one (238mg/1. ), sample two
(136 mg(I. ), sample four (I 18mg/1. ) and sample five (I50mg/I. ) were higher than I (X)mg/I.
which mean it falls under class V water. 13esidest,h e 1301)v alue fir sample five (26.64mg/I. )
was higher than 12mg/I. and was categorized under class V water. Overall, the outputs of
this study give a useful insight into the status of stormwatcr management practices and
effectiveness in Scri Iskandar that will help with the development as well us maintaining
clean environment. Although the effect of one property on the quality and quantity of
stormwater runoff may seem insignificant, the cumulative impact from hundreds of thousands
of yards across the State continues to be destructive to our water quality.