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Control of Industrial Major Accident Hazards (CIMAH) Report Page 4
Ranhill SAJ Sdn Bhd Revision 01
Executive Summary Date Aug 2019

A preliminary hazard analysis is performed and concluded that Sodium
Silicofluoride poses a localized hazard, therefore not capable of producing
major accident hazard.

The physical and chemical properties of Chlorine and Sodium
Silicofluoride is described in detail in Part A.

Liquid Chlorine supplied by a manufacturer, brought to the plant in a
standard 68 kg cylinder (KT1 WTP) and 930 kg drum (KT2 WTP). Chlorine
is a toxic gas. It can enter the human body through the nasal passage if
present in the atmosphere. Small quantity of gas inhaled can cause
sickness and large quantity inhaled can cause death or situation that can
cause immediate danger to life and health.

3.2.2 Part B: Information on the Installation

KT1 & KT2 WTP is situated two (2) km from Segamat town and occupies
approximately seven (7) ha of land in Kampung Tengah, Segamat, Johor.

A site plan showing the location of the Chlorine Room where Chlorine
cylinders and drums are stored and then finally be used in the water
treatment process. KT1 & KT2 WTP processes raw water from Segamat
River to remove contaminants and undesirable components before it is
distributed to the consumers. Chlorine is stored for use as a disinfectant
for the water treatment process. KT1 & KT2 WTP is designed to process
45 million liters per day (MLD) capacity (KT1: 13.1 MLD, KT2: 31.36 MLD).

The Plant is manned 24 hours and seven days a week throughout the
year. The manning requirement is managed by the Human Resource
Department.

3.2.3 Part C: Information on the System of Management

The Chlorine handling equipment and buildings are designed, selected,
constructed and maintained based on the established standards and take
into consideration that there is a potential for accidents or incidents
involving Chlorine gas leak. Chlorine gas detection and alarm systems are
installed in the Chlorine storage and chlorination room.