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Drinking water & groundwater quality standards/advisory levels

The Drinking Water & Groundwater Quality Standards/Advisory Levels [PDF] contains the tables:

  • Table I - Drinking Water & Groundwater Quality Health Standards/Advisory Levels
  • Table II - Drinking Water & Groundwater Quality Public Welfare/Secondary Standards

Tables I and II list the Safe Drinking Water Act maximum contaminant level (MCL) or secondary standard, the Wisconsin groundwater quality enforcement standard (ES) or health advisory level (HAL) established by the Wisconsin Department of Health Services (DHS) or the United States Environmental Protection Agency (EPA) for contaminants in groundwater and drinking water.

Safe Drinking Water Act and Wisconsin groundwater standards are enforceable standards established to protect public health and welfare by limiting the levels of contaminants in drinking water and groundwater. Secondary standards are guidelines established to address cosmetic and aesthetic effects of substances present in drinking water supplies. Health advisory levels established by the Wisconsin DHS or the United States EPA are technical advice to assist with water consumption advice and groundwater remediation decisions.

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