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We bought our property not thinking about water quality until there were issues. Thanks for the help KYH2O!

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Our Blog

Global water-monitoring community infographic showing participation maps and reported growth from 2023 to 2026.

25 October

Free Surface Water Quality Index Calculator for Citizen Scientists

Explore KnowYourH2O’s free Surface Water Quality Index Calculator for citizen scientists, educators, and watershed organizations. Learn how it summarizes monitoring data, supports community projects, and why incomplete data and differing sampling methods matter when interpreting scores. Surface-water WQI scores do not establish drinking-water safety.

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Illustration comparing a clean water heater with one containing mineral sediment buildup, with a reminder to get the water tested.

18 October

Why Flush Your Water Heater? Hard Water and Sediment Buildup

Hard water can leave mineral scale and sediment in your water heater, affecting heat transfer, hot-water capacity, and maintenance needs. Learn why flushing matters, which warning signs to watch for, and how water hardness and your manufacturer’s guidance can help you plan maintenance.

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Illustration of rod-shaped bacteria with the text ‘Shigella On the Rise.’

10 October

Shigella: Symptoms, Transmission, and Drug Resistance

Shigella bacteria cause shigellosis, a highly contagious intestinal infection that can spread through contaminated food or water and person-to-person contact. Learn about symptoms, higher-risk groups, prevention, and the growing challenge of extensively drug-resistant strains.

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