Unfiltered Tap Water
Unfiltered tap water from municipal water supply. Contains PFAS, chlorine, chloramine, lead, and microplastics.
How scores are calculated
Materials (40%): How plastic-free the product is — raw materials, construction, and coatings.
Packaging (20%): Is the product packaged in plastic? Is it recyclable?
Transparency (20%): Does the brand disclose ingredients, sourcing, and manufacturing?
Durability (20%): How long does it last? Longer-lasting products reduce plastic waste over time.
This is a rating of this specific product only — not the company. Other products from this brand may score differently.
Last updated: April 6, 2026
Tap water in the US contains PFAS, chlorine, chloramine, lead, and microplastics. A quality water filter is the most impactful single purchase for reducing chemical exposure.
Why We Rated It This Way
Unfiltered tap water contains PFAS (detected in 45% of US tap water by USGS), chlorine, chloramine, lead (in older pipes), and microplastics. A quality water filter (reverse osmosis or activated carbon) is the most impactful single purchase for reducing chemical exposure.
Chemical & Health Analysis
Each chemical of concern is broken down below — what it is, where it comes from in this product, what it does to the body, and who is most at risk.
PFAS
PFAS contamination in unfiltered municipal tap water
Cancer, thyroid disease, immune system disruption
- ↳Presence of Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS) in Food — Foods (MDPI), 2021
- ↳Per- and polyfluoroalkyl substances (PFAS): An overview of existing and emerging issues — Journal of Hazardous Materials Advances, 2022
- ↳Per- and polyfluoroalkyl substances (PFAS) exposure and thyroid cancer risk — eBioMedicine (The Lancet), 2023
All health claims are based on published, peer-reviewed research from the NIH, WHO, IARC, and peer-reviewed journals. This information is for educational purposes and does not constitute medical advice.
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