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WATER QUALITY GUIDES
The WaterCheckup Blog
Expert guides on tap water safety, PFAS, lead, and EPA violations — backed by the only free tool that combines 5 EPA databases.
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PFAS8 min read
Is PFAS in My Tap Water? What the EPA Data Actually Shows
PFAS "forever chemicals" have been found in 45% of US tap water. Here's how to find out if your water is affected — and what to do about it.
Read more →Lead10 min read
Best Water Filters for Lead Removal in 2026 (NSF Certified)
There is no safe level of lead in drinking water. These are the only filters that are actually certified to remove it — ranked by performance and price.
Read more →Pregnancy8 min read
Is Tap Water Safe During Pregnancy? What OBs and the EPA Say
Pregnant women face higher risk from lead, nitrates, PFAS, and disinfection byproducts in tap water. Here is what to filter and what to skip.
Read more →☣️PFAS & Forever Chemicals3 articles
⚠️Lead & Heavy Metals2 articles
🏥Safety & Health5 articles
Pregnancy8 min read
Is Tap Water Safe During Pregnancy? What OBs and the EPA Say
Safety8 min read
Is Tap Water Safe to Drink? The Honest Answer by City and Water Source
Safety6 min read
Boil Water Advisory: What to Do, What to Avoid, and How Long It Lasts
Health8 min read
Fluoride in Tap Water: Is It Safe? What the Latest Research Shows
Science8 min read
Microplastics in Drinking Water: What We Know (and What We Don’t)
🔬Filter Guides6 articles
Filters9 min read
Best Water Filter Pitchers of 2025: Ranked by What They Actually Remove
Home12 min read
Best Water Filter for Hard Water 2025 — Tested & Ranked
Home9 min read
Top 10 US Cities With the Hardest Tap Water (and What to Do About It)
Guides9 min read
Reverse Osmosis Water Filters: Pros, Cons, and Who Actually Needs One
Filters7 min read
Refrigerator Water Filters: What They Actually Remove
Guides9 min read
Whole-House Water Filter vs. Under-Sink: Which Should You Choose?
📋Testing & EPA Data5 articles
Testing9 min read
How to Test Your Tap Water: Mail-In Labs, Strips, and What to Order
Guides9 min read
How to Read Your Consumer Confidence Report (CCR)
EPA7 min read
What Does an EPA Water Violation Actually Mean for Your Health?
Moving6 min read
Moving to a New City? Check the Water Quality First
Education6 min read
PPM, PPB, PPT: What Those Numbers on Your Water Report Actually Mean
🧪Contaminants Explained7 articles
Contaminants7 min read
Chromium-6 in Drinking Water: Should You Worry?
Health7 min read
Disinfection Byproducts (TTHM & HAA5): What They Are and How to Reduce Them
Treatment8 min read
Chloramine vs. Chlorine in Tap Water: What It Means for Filters
Lifestyle8 min read
Bottled Water vs. Tap Water: Cost, Safety, and PFAS Reality
Home7 min read
Why Does My Tap Water Taste Bad? The 7 Most Common Causes
Home8 min read
Hard Water Explained: Scale, Softeners, and What It Means for Your Taps
Purity10 min read
Why Distilled Water and Reverse Osmosis Are the Two Best Systems for High Purity
🌿Well Water4 articles
Wells10 min read
Private Well Water Testing 101: What to Order and How Often
Wells8 min read
Arsenic in Well Water: The EPA Limit and Treatment That Actually Works
Wells8 min read
Nitrate in Well Water: Why Infants and Pregnancy Need Extra Care
Wells8 min read
Radon in Drinking Water: Risk, Testing, and Treatment for Well Water Users
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