Color
What You May Notice
Above EPA's secondary standard, Color can cause: visible tint.
EPA regulates Color under a secondary drinking water standard — a non-enforceable guideline set for taste, odor and appearance rather than health. Water systems are not required to meet it, and exceeding it is an aesthetic problem, not a known health risk.
Source: EPA — National Secondary Drinking Water Regulations (retrieved 2026-07-27)
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Contaminant Type
Color is classified as a Properties contaminant.
Related Properties Contaminants
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Find out if Color is in your tap water.
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Haloacetic Acids (HAA9) Test
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Tests for disinfection byproducts formed when chlorine reacts with organic matter in water treatment.
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