Get science-based, helpful information about drinking water contaminants you may be concerned about, such as lead, fluoride and PFOA/PFOS.
PFOA/PFOS in Drinking Water
Exposure to unsafe levels of PFOA/PFOS concentrations through drinking water may result in health effects.
Fluoridation Products and Fluoride
Fluoride products reduce the incidence of tooth decay.
Blue Green Algae in Drinking Water
Drinking water can be contaminated by toxins produced by blue-green algae.
Copper in Drinking Water
Learn how copper can make its way into your drinking water.
Lead in Drinking Water
Lead contamination is a drinking water safety concern.
Emergency Drinking Water
How to find alternate drinking water sources in an emergency.
Emerging contaminants are a new category of water quality concerns for which evidence of health effects has not yet been established.
Once you know what’s in your water, should you choose a filter, reverse osmosis or other type of purification system?Find the next steps