Contaminants in Water

• A-Z List of Contaminants in Water

• Facts and guidance for contaminants in water.

• Accredited Laboratories

• Search for Accredited Laboratories, or run customized searches for specific chemical testing available.

• Bottled Water

• Questions and answers on bottled water versus tap water.

• Comparison of State Water Guidance and Federal Water Standards

• A list of MDH health-based water guidance values for drinking water, EPA standards and EPA health advisories.

• Contaminants of Emerging Concern

• Information around the health and exposure potential of contaminants of emerging concern in drinking water.

• EPA Safe Drinking Water Act Standards: Microbiological, Radiological, and Inorganic Contaminants

• List of the radiological and inorganic contaminants that are tested for in public water systems.

• EPA Drinking Water Requirements for States and Public Water Systems: Chemical Contaminant Rules

• List of the organic chemicals—which include pesticides, industrial chemicals, and disinfection by-products—that are tested for in public water systems.

• Guidance Values and Standards for Contaminants in Drinking Water

• MDH’s recommendations for levels of contaminants in drinking water that are likely to pose little or no health risk.

• Home Water Treatment

• Pros and cons of different types of point-of-use devices.

• Water Quality/Well Testing/Well Disinfection

• Information about maintaining your private well and testing that should be performed on your well water, as well as disinfection information.

• Water Testing and Data Reports

• Quality data, maps, assessments and reports.

• Waterborne Illness

• Waterborne illness is caused by contaminated recreational or drinking water.