Know What's in Your Water
Independent water quality data for every US city. We analyze EPA testing results, compare them against health guidelines, and recommend filtration systems that actually solve your water problems.
Free, instant results from EPA data — no email required
Water Quality Reports by City
Detailed contaminant analysis and filter recommendations for major US cities.
Chloramine, Lead in older buildings
Chromium-6, Disinfection byproducts
Lead service lines citywide
THMs, Chloramine
Extreme hardness, Arsenic
Lead, PFAS
Chromium-6, THMs
Atrazine, THMs
Algae-related taste, THMs
Extreme hardness, Arsenic
Lead crisis (ongoing remediation)
Sulfur smell, Hardness
Common Contaminants in US Tap Water
Understand what's in your water, the health risks, and how to remove it.
Lead
Neurotoxin from aging pipes, no safe level
PFAS (Forever Chemicals)
Linked to cancer, found in thousands of systems
Chromium-6
The 'Erin Brockovich' chemical, no federal limit
Arsenic
Naturally occurring carcinogen in groundwater
Chlorine & Chloramine
Added intentionally, creates byproducts
Nitrate
Agricultural runoff, dangerous for infants
Data-Driven, Not Opinion-Driven
EPA Source Data
Every number comes from official EPA compliance monitoring — not guesswork.
NSF-Verified Filters
We only recommend filters with certified performance claims. No unverified products.
City-Specific
Recommendations matched to your city's actual contaminant profile — not generic advice.