About CheckMyTap
Independent water quality data for American homeowners.
What We Do
CheckMyTap provides water quality data for 1000 US cities, covering hardness, PFAS, lead, chlorine, nitrates, and total dissolved solids. We compile data from the EPA Safe Drinking Water Information System (SDWIS), USGS geological surveys, EPA UCMR5 monitoring data, and individual municipal Consumer Confidence Reports. We cross-reference utility-reported contaminant levels against both federal legal limits and independent health guidelines, then present this data in plain language with specific, actionable treatment recommendations based on actual water chemistry - not marketing claims.
Why We Built This
The water treatment industry is full of companies that want to sell you equipment you may not need. Municipal water reports are dense, technical documents that most homeowners never read. We saw a gap: homeowners needed a fast, trustworthy way to understand what is in their water and whether they actually need to do something about it. CheckMyTap fills that gap. If your water is fine, we will tell you. If it needs treatment, we will explain exactly what type and why.
How We Make Money
CheckMyTap earns revenue through affiliate partnerships with water treatment product retailers. When you purchase a product through a link on our site, we may earn a commission at no additional cost to you. Our water quality data comes entirely from public sources and is not influenced by affiliate relationships. We suggest product categories (softeners, filters, RO systems) based on your water data. The specific products featured on comparison and recommendation pages are limited to brands with affiliate programs. See our full affiliate disclosure for details.
Our Standards
Data accuracy: We source from official government databases and utility reports. We do not fabricate or estimate contaminant levels. See our methodology page for complete details on our data sources, measurement standards, and limitations.
Editorial independence: Water quality data and treatment recommendations are never influenced by affiliate relationships. If your water does not need a softener, we say so clearly.
Transparency: We clearly label affiliate links, explain our revenue model, and acknowledge the limitations of our data (utility averages may not match individual homes).