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Old 21-11-2011, 03:07 PM   #61
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Default Feedback from PUB dated 18th Nov 2011

Hi All,

***** Start of Extracted email from PUB *****

Dear Sir,

Thank you for your feedback.

The chlorine level in drinking water is being monitored on-line continuously at our waterworks pumping main and distribution networks. The close monitoring is to ensure sufficient residual to prevent bacteria re-growth as chlorine level will vary due to varying system demand and retention time. The residual chlorine at customer taps is generally below 2 mg/l.

The measurement unit for water quality parameters are in mg/l unless otherwise stated. It is indicated at the top left column of the Potable Water Quality table below as "Chemical & Physical Characteristics (In mg/l where applicable)".

http://www.pub.gov.sg/general/waters...Treatment.aspx

Regards

PUB One Officer
for DIRECTOR
TECHNOLOGY & WATER QUALITY OFFICE

***** End of Extracted email from PUB *****
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