Dealing with Specific Chemicals
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Arsenic and Drinking Water
Tells what sources tend to contain arsenic. States maximum contaminant level (MCL) allowed in drinking water. Links to presentations
from our staff about arsenic and public water systems and information about ways to remove arsenic.
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Secondary Constituents
Contaminants that are regulated in public drinking water but have no adverse health effects. For example, some secondary contaminants
cause unpleasant odors. Others give water a tinge of color.
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