Learn About Your Tap Water

Learn how to read water reports, understand EPA standards, and make informed decisions about your tap water.

18 articles

Deep-dives on specific water contaminants including lead, PFAS, arsenic, and more. Learn about health effects and removal methods.

4 articles

NSF certification explained, filter comparisons, and expert recommendations for removing specific contaminants.

3 articles

City-specific water quality analysis, contamination issues, and local recommendations.

5 articles

Home test kits, certified lab reviews, and guidance on when and how to test your tap water.

0 articles

Chicago delivers excellent water quality from Lake Michigan with non-detectable PFAS levels, but the nation's largest lead service line inventory—over 400,000 pipes requiring replacement—creates serious risks for families, particularly in South and West Side communities where over 90% of service lines contain lead.

Florida's tap water story varies dramatically by region—from Miami's PFAS-contaminated supplies exceeding EPA limits to Jacksonville's deep aquifer protection to Central Florida's sulfur problems. While major utilities reported zero violations in 2024, Florida ranked 6th nationally with 5,187 SDWA violations, and 92% reliance on groundwater creates unique vulnerabilities from saltwater intrusion, agricultural runoff, and aging infrastructure.

Seattle's tap water is among the safest in the nation with zero PFAS detections and pristine mountain sources—but only if it makes it through your pipes uncorrupted. While Seattle Public Utilities delivers exceptional water from protected Cascade watersheds requiring minimal treatment, chromium-6 concerns and pre-1986 building plumbing mean your specific tap water quality depends on factors beyond the municipal supply.

Washington DC experienced one of America's worst lead-in-water crises in 2001-2004, when faulty water treatment caused lead levels up to 20x the EPA limit and an estimated 2,000 fetal deaths. Twenty years later, DC Water has made significant progress—current lead levels are just 2 ppb, well below the 15 ppb action level. But with 34,400 lead service lines still remaining and a federal deadline looming, the path to a completely lead-free system presents substantial financial and logistical challenges.

Boston's tap water is among the safest and best-tasting in the nation—but only if it makes it through your pipes uncorrupted. While MWRA delivers pristine water from the Quabbin Reservoir, an estimated 3,000 to 5,000 homes still have lead service lines that can contaminate water during its final journey to your tap.

The average American family wastes 10,000 gallons of water annually from household leaks alone. Simple, cost-effective upgrades can save families $380+ per year while cutting water use by 20-30%.