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CHLORINATION OF CITY WATER SUPPLY INFORMATION
The city of _________________ water department is
now chlorinating the city water supply for the purpose of treating lead and
copper. Chlorine is a chemical substance that is commonly used to bleach
the laundry, clean out sinks and bathroom fixtures, and sanitize table and
counter tops. Chlorine has been added to drinking water to protect the
public health by keeping the water supply free of harmful bacteria and viruses.
The process of using chlorine to treat drinking water is called disinfection.
Approximately 75% of community water systems in Minnesota presently use chlorine
for water disinfection.
As a result of testing for lead and copper, many
systems are being required to conduct corrosion control studies, which include
the use of small amounts of phosphate chemicals in the water supply.
Phosphates tend to enhance the growth of bacteria in water and could cause some
increase taste and odor problems. Therefore, the Minnesota Department of
Health requires that water systems also provide disinfection with chlorine in
order to prevent the increase in bacteria and related problems.
When chlorine is first added to a public water supply, many
consumers will immediately notice a slight difference in the
taste and odor of their drinking water. After a few weeks most consumers
will easily adjust to the difference. For those who continue to notice the
chlorine tastes, it is suggested that drinking water be chilled in the
refrigerator before consumption and the taste and odor will generally disappear.
Careful monitoring of the disinfection process and of residual chlorine levels
in the distribution system will insure that consumer complaints are minimized
and the new treatment process is acceptable to the consumer. Residents
with aquatic fish should use chlorine removal tablets when changing water.
If consumers should have any questions or concerns, please
contact the city water department at ____________.
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