Water quality data you can trust

ClearWaterScore exists because we believe everyone deserves to know what's in their tap water — and what to do about it. Not marketing fluff, not fear-mongering, not product placements disguised as advice. Just accurate data, honest analysis, and recommendations that hold up to scrutiny.

We built this site because we were frustrated by the gap between what people need (clear, personalized, actionable water quality information) and what exists (generic listicles, manufacturer-funded reviews, and dense EPA databases that require a chemistry degree to interpret).

What makes us different

We start with the data, not the products. Every city water quality report on this site is built from EPA compliance monitoring data — the same data that utilities report to federal regulators. We compare those numbers against both EPA legal limits and the stricter EWG health guidelines, then recommend filtration only where the data justifies it.

We verify before we recommend. Every filter recommendation on ClearWaterScore is backed by NSF certification — third-party lab verification that the product actually removes what it claims to remove. We don't take manufacturers at their word, and neither should you. If a product lacks independent certification, we don't recommend it regardless of how good the marketing looks.

We're transparent about money. ClearWaterScore earns revenue through affiliate commissions when you purchase products through our links. This is how we fund the site without paywalls or ads. But our recommendations are based on data and certifications — not commission rates. Products with the best commissions don't get preferential placement. Products with the best performance data do.

Our editorial standards

Every piece of content on this site follows our editorial methodology. In short: every data point is sourced, every claim is verifiable, every recommendation is justified, and every affiliate relationship is disclosed. We correct errors promptly and update content when new data becomes available.

We don't accept payment for reviews. We don't let manufacturers preview content before publication. We don't adjust ratings based on business relationships. If we can't verify a claim independently, we don't make it.

Contact us

Have a question, correction, or suggestion? We want to hear it. Reach us at hello@clearwaterscore.com.