America’s Water Intelligence Map
Explore cities with published PurityMap reports. Each dot shows where a record exists, not what it found; open a city for its findings and its water system’s score, where the record supports one.
Each dot is a city with a published report (3,625 of 4,194 placed by location). Dots show where reports exist, not what they found. Select a dot to preview it.
Water quality by state
- Alabama129 cities
- Alaska5 cities
- Arizona54 cities
- Arkansas56 cities
- California400 cities
- Colorado96 cities
- Connecticut26 cities
- Delaware12 cities
- District of Columbia1 city
- Florida214 cities
- Georgia125 cities
- Hawaii13 cities
- Idaho25 cities
- Illinois220 cities
- Indiana90 cities
- Iowa40 cities
- Kansas33 cities
- Kentucky83 cities
- Louisiana72 cities
- Maine13 cities
- Maryland31 cities
- Massachusetts165 cities
- Michigan137 cities
- Minnesota100 cities
- Mississippi46 cities
- Missouri72 cities
- Montana10 cities
- Nebraska15 cities
- Nevada14 cities
- New Hampshire18 cities
- New Jersey162 cities
- New Mexico30 cities
- New York145 cities
- North Carolina128 cities
- North Dakota8 cities
- Ohio142 cities
- Oklahoma52 cities
- Oregon65 cities
- Pennsylvania122 cities
- Rhode Island13 cities
- South Carolina76 cities
- South Dakota16 cities
- Tennessee146 cities
- Texas382 cities
- Utah70 cities
- Vermont9 cities
- Virginia64 cities
- Washington123 cities
- West Virginia19 cities
- Wisconsin95 cities
- Wyoming12 cities
Coverage is not a household test.
A dot means a published record exists. It doesn’t show what is in the water at a specific address. Start broad, then finish with the evidence for the system that serves you.
- 01Search or scan
Find a covered city, or scan the map for where published reports exist.
- 02Open a city
Select a dot to open its city report, with findings, measurements, limitations and sources.
- 03Confirm your system
City boundaries and service areas can differ. Resolve the supplier behind your tap before acting.