There are a few sources of information available to let you learn about the quality of and threats to your drinking water.  A contaminant source inventory can tell you what potential threats exist for your water supply.  And the 305(b) Report to Congress may tell you the current condition of the supply.

What's the quality of my drinking water?   View compliance data in your consumer confidence report or monitoring results in the 305(b) Report to Congress on Water Quality.

What are the potential threats to my drinking water supply?   View types of contaminants and contaminant sources.

• Statewide summary for all water systems indicating total number of contaminant source types by susceptibility ranking. 
• Summary indicating total number of contaminant sources by susceptibility ranking for each water system.  
• Contaminant inventory for individual public water supplies may be accessed in using a state map.