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Besides providing a source of recreation, including
swimming, boating and fishing, some rivers and lakes also feed into
a city's water system for drinking water. Of course, water from
lakes goes through an extensive purification process before it flows
through anyone's faucet, but a seriously imbalanced lake can have
toxins that will pass through a water purifier. In addition, some
of the local fish in the western and central parts of North Carolina
(such as trout and catfish) come from freshwater environments.
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