National Standard For Raw Water Quality Malaysia
The National Standard for Raw Water lists the recommended criteria for microbiological, physical, chemical and radioactive constituents of raw water which will be suitable as a potable source after undergoing conventional treatment.
If a raw water source has a quality that conforms to the recommended standards set in the drinking water quality standards as listed in the Table above, then it can be supplied with minimal treatment, which in most cases involves disinfection only.
If a raw water source has quality that does not conform to the recommended raw water quality criteria, then appropriate action shall be taken to identify and overcome the problem to allow for continued operation of conventional treatment. Special treatment should only be considered as a last resort.
The following are the recommended parameter limits for raw water
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