CHAPTER 14 - Iskandar Malaysia

SECTION B
PLANNING AND IMPLEMENTATION
14.6 Water Supply
Table 14.7: Existing SJER Water Supply
A. Introduction
Treatment Plant
Water Supply (mld)
The current supply of water is adequate in meeting the needs of SJER,
with a reserve of about 100%.
Heavy industries in Pasir Gudang, new industries in Nusajaya and other
industrial areas, as well as the associated population increase will
require that the water supply system (comprising the source, headworks,
transmission, and storage and distribution network) be augmented
significantly.
Layang 182.0
Layang Extension 136.0
Sg. Johor - Stage 2 159.0
Lower Pulai Treatment Plant 82.0
Sg. Johor - Stage 3 159.0
Sayong Treatment Plant 140.0
TOTAL 858.0
Source: SJER CDP 2025
KEY DIRECTION
UI 4 : Ensure a reliable source of high quality water and preserve
existing water catchments areas that serve SJER.
B. Water Demand
Demand for water within the SJER in the year 2005 was in the region of
537 million litres per day, as illustrated below.
Table 14.6: Existing SJER Water Demand
City Council
Water Demand (mld)
MBJB 182.0
MPJBT 175.1
MPKu 51.0
PDJB 69.1
PBTPG 59.8
SJER 537.0
Source: SJER CDP 2025
D. Non-Revenue Water (NRW)
Within SJER, Non Revenue Water (NRW) is very significant. NRW is the
difference between the total volume produced by water treatment
plants and total volume of water legally used. This difference in volume
is generally due to the following:
■ Leakage in distribution pipes, faulty valves and water wastage
due to improper pipe fittings, as well as burst pipes;
■ Operation of fire hydrants and flushing of main pipes;
■ Illegal pipe connection, for instance, tapping illegally from fire
hydrant; and
■ Meter vandalism.
In relation to the above, SAJH has taken various steps to improve
security by putting up fences. SAJH has implemented various programs
to upgrade the old pipes since 1995 and reduced NRW from 47% in
1992 to 27% in year 2000. SAJH has forecast that NRW in the region will
reduce to between 25%-20% in 2010.
C. Water Resources
Syarikat Air Johor Holdings Berhad (SAJH) is the body responsible for the
supply of treated water in SJER. There are six treatment plants, which
supply 858 million litres of treated water per day to consumers in SJER.
Raw water is sourced from three rivers namely Sungai Layang, Sungai
Johor and Sungai Pulai.
E. Existing Water Requirements
From the analysis shown, there is a surplus of water of 149.9 million litre
per day. to cater for immediate needs and development pressure.
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