NSF Consumer Information: Contaminant Guide

> About the NSF Mark
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> Plumbing
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> Residential Appliances
- » Residential Dishwashers
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> Scrub Club®
> Search for NSF-Certified Products
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> Wastewater Treatment
- » Alternative Residential Systems
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> Water Treatment
- » Consumer Confidence Reports
- » Contaminant Guide
- » Home Water Treatment
- » Well Water
- » Frequently Asked Questions
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- » Other Consumer Fact Kits
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Look for the mark and you'll find a safer product.

Radon
Maximum Contaminant Level (MCL)	300 pCi/L (proposed)
Potential Health Effects (from ingestion of water)	Cancer
Potential Source of Contaminant	Naturally occurring
Applicable NSF/ANSI Standard(s)	Standard 53
Water Treatment Technologies Certified by NSF for Reduction of this Contaminant	Filtration. Although NSF does not currently certify them, aeration devices can also be used.
Special Notes	None