| dc.description.abstract | Quality  drinking water  is an  important  aspect  that  needs  to be  emphasized. Realizing  the 
importance  of  drinking water  quality,  the  study  of  drinking  water  quality  in  Perlis  was 
conducted. This study focuses on the quality of treated water that supplied for domestic use 
in  Perlis.  Sample  of  treated  water  are  taken  from  the  selected  end  user  in  Perlis.  Four 
sampling points have been selected which is at Kuala Perlis, Kg. Padang Malau, Chuping, 
and Arau. All  four  listed  sampling points are  representing difference  raw water  resources 
which  Kuala  Perlis  from  Timah  Tasuh  Dam,  Kg.  Padang  Malau  from  Semadong 
groundwater  borewells, Chuping  from  groundwater  borewells  and Arau  from Muda  and 
Pedu Dam that mix with Arau groundwater. The sample of Reverse Osmosis (RO) water at 
Kuala Perlis was also taken for testing. All the sample of drinking water were tested in situ 
and ex situ for selected parameter. In situ parameters measured are temperature, pH, nitrate 
(NO3
−),  turbidity  and Total Dissolves  Solid  (TDS). The  parameters  for  ex  situ  are Total 
Coliform, E.coli, Zinc  (Zn), Chromium  (Cr
6+
)  and Manganese  (Mn). Most  of  the  testing 
procedures carried out for this research followed the Standard Method for the Examination 
of  Water  and  Wastewater,  American  Public  Health  Association  (APHA).  The  tested 
drinking water are categorize with excellent,  satisfactory,  less  satisfactory and poor based 
on their quality. According to the acquired data, the quality of water in Arau, Chuping and 
RO water  is  in  satisfactory  circumstances, while Kuala  Perlis  and  Semadong  is  in  poor 
circumstances. | en_US |