Learn About Your Tap Water
Expert guides on water quality, contaminants, filters, and testing. Make informed decisions to protect your family from contaminated tap water.
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Water Quality Guides
Learn how to read water reports, understand EPA standards, and make informed decisions about your tap water.
34 articles
Contaminant Information
Deep-dives on specific water contaminants including lead, PFAS, arsenic, and more. Learn about health effects and removal methods.
4 articles
Water Filter Guides
NSF certification explained, filter comparisons, and expert recommendations for removing specific contaminants.
8 articles
City Water Quality
City-specific water quality analysis, contamination issues, and local recommendations.
5 articles
Water Testing
Home test kits, certified lab reviews, and guidance on when and how to test your tap water.
0 articles
Recent Articles
View all guides →Where Does US Tap Water Come From? Sources, Cities & Aquifers Explained
About 270 million Americans get their tap water from one of roughly 50,000 community water systems—61% from surface water, 39% from groundwater. Another 40 million drink from private wells with no federal regulation.
Data Center Water Usage: 5 American Towns Share a Water Utility With an AI Data Center
When a hyperscale data center moves into your town, it doesn't get its own water supply — it usually shares yours. We built a verified dataset of five US AI facilities, joined each one to its water utility, and worked out the per-resident math. Some numbers are striking; some are smaller than the headlines suggest; and some are missing because the law doesn't require disclosure.
The Water Treatment Process: 7 Steps From Source to Your Tap (2026)
Most U.S. tap water moves through coagulation, flocculation, sedimentation, filtration, disinfection, corrosion control, and distribution before it reaches your faucet. Here's the full process in plain English — plus what your annual water quality report should tell you.
Staying Hydrated on GLP-1 Medications: The Science, the Math, and the Tools That Help
If you started a GLP-1 medication and noticed you're suddenly not thirsty—that's not in your head. The same drug action that quiets your appetite also quiets your thirst signal.
Does Distilled Water Go Bad? Shelf Life, Storage, and Signs of Contamination
Sealed distilled water does not technically expire, but improper storage or opening the container introduces contaminants that degrade quality over time. Here is how long it lasts and how to store it properly.
Distilled Water for Humidifiers: Why It Matters and What Happens If You Don't
Using tap water in your humidifier creates white mineral dust that coats surfaces, promotes bacteria and mold growth in the tank, and shortens the life of your unit. Here is why distilled water is recommended and what happens if you skip it.
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