From the blog

Ohio water, demystified

Plain-English guides on softeners, reverse osmosis, and what's actually in your tap.

Water Safety

Why Does My Water Smell Like Rotten Eggs in Ohio?

Rotten egg smell in your water is hydrogen sulfide gas. Three things cause it, and each one has a different fix. One of them is a forty dollar part. Here is how to tell which you have.

Sep 3, 2026 · 8 min read
Cincinnati Water

White Residue on Faucets and Dishes in Cincinnati

The white crust on your faucets is calcium carbonate that came out of the water. Here is the real hardness number for your city, and the level where treating it starts to pay.

Sep 3, 2026 · 6 min read
Cincinnati Water

How Much Salt Should My Water Softener Use? Cincinnati

A softener set right for Cincinnati water goes through four to nine bags of salt a year, depending on how the valve is dosed. If yours burns more than that, the hardness setting is probably stuck on a number your utility stopped delivering.

Sep 3, 2026 · 7 min read
Water Safety

PFAS in Southwest Ohio Drinking Water: What the Federal Limit Means

The federal limit for PFOA and PFOS is 4.0 parts per trillion. Here are the six southwest Ohio systems reporting above it, when the rule is actually enforced, and what removes PFAS at home.

Sep 3, 2026 · 6 min read
Cincinnati Water

Is Cincinnati Tap Water Safe to Drink? An Honest Answer

Yes. GCWW reported no violations in its 2025 Water Quality Report and runs carbon, UV, and chlorine. Here is what that treatment handles and what it does not.

Sep 3, 2026 · 7 min read
Cincinnati Water

Do You Need a Water Softener in Cincinnati?

Greater Cincinnati Water Works runs 7.4 grains per gallon at its Miller plant and 8.2 at Bolton. Xenia runs 23 and Oxford runs 20 to 22. Here is the honest threshold, city by city.

Sep 3, 2026 · 7 min read
Cincinnati Water

What's Actually in Cincinnati Tap Water (2026 Edition)

Greater Cincinnati Water Works publishes one of the most respected water quality reports in the country. Here's what's still in your glass after treatment — and what a whole-home system removes.

May 7, 2026 · 6 min read
Clean Living

Softener vs. Filter: What's the Difference (and Do You Need Both)?

Most homeowners use the words interchangeably — but a softener and a filter solve totally different problems. Here's a 4-minute explainer.

Apr 30, 2026 · 4 min read
Cincinnati Water

Where Cincinnati's Water Comes From (and Why It Matters)

If you live in Greater Cincinnati, the water in your shower started its journey hundreds of miles upstream. Here's the path.

Apr 23, 2026 · 5 min read
Honest Water
Ohio

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Source: EWG Tap Water Database, Ohio + Greater Cincinnati Water Works. EWG's database includes results of tests conducted by Cincinnati-area water utilities and provided to EWG by the Ohio EPA. Data shown covers 2013–2026.

Disclaimer: The lookup tool is for informational purposes only. It summarizes findings reported across Cincinnati-area water systems. Your exact water may vary by utility, plumbing condition, well status, and local conditions. For exact results, check your utility's annual water quality report, look up your utility on EWG, or request a current water test.

Honest Water Ohio is not affiliated with EWG or Greater Cincinnati Water Works. These public data sources are cited for educational purposes only and do not replace a water test, utility report, or professional water analysis.

Honest Water Ohio is not affiliated with, endorsed by, sponsored by, or officially connected to Meta Platforms, Inc., Facebook, or Instagram. Facebook and Instagram are trademarks of Meta Platforms, Inc.

Pricing, promotions, financing, and installation details may vary based on home size, water quality, selected system, and approval where applicable.

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