Site index · browse everything
Everything on PurityMap
One page to reach every section: the map, water quality by state, the water-systems register, contaminants, treatment solutions, the journal, and our trust documents.
94 links
01 · Site sections
Every section, by journey step
Explore8 links
States & cities
Understand8 links
Contaminants
Solve8 links
Solutions
Trust5 links
Learn & Trust
Company5 links
PurityMap
02 · Big directories
Browse the big directories
- PlacesCity water reports4,194 cities. Browse the city index.Open →
- SuppliersWater systems registerEvery public system on record, published or not.Open →
- PlacesZIP code directoryLook up water quality by any covered ZIP.Open →
- PlacesWell water by countyModelled arsenic and nitrate for private wells, and what to test for.Open →
- SubstancesContaminantsPFAS, lead, nitrate and more, read against the limit.Open →
- ResearchJournalResearch, explainers and practical water guides.Open →
- GuidesWater problemsSmell, color or taste off? Causes, the tap check and who to call.Open →
- GuidesWater test kitsWhich kit for lead, PFAS, a private well or hard water.Open →
- ProductsWater filter productsAnalysis by certified claim and treatment format.Open →
03 · Water quality by state
Counts are cities with a published report.50 states and DC
- 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
Your next step
Find my water →Find the water system behind your tap
Start from an address, city or ZIP.