Most Recent Articles

Learn which NSF certified water filters reduce arsenic. Understand NSF/ANSI standards, why certification matters, and why testing your water comes first.

Protect your baby with safer tap water. Learn which contaminants to watch for during pregnancy and infancy, when to test, and how to filter effectively.

Learn the difference between EPA MCLs, MCLGs, and Tap Score HGLs and how each standard affects your water quality and health.

Learn how labs test drinking water using ICP-MS, GC-MS, and LC-MS to detect lead, VOCs, PFAS, bacteria, and more.

Learn what VOCs are, how they get into drinking water, and how to test accurately (mail‑in lab vs screening). Includes standards context and next steps.

A clear guide to cheap and free water tests—what they measure, what they miss, and when certified lab testing is worth it.

Suspect a dead animal in your well? Learn how to test for coliform bacteria and what to do to disinfect before use.

New York Times’ Wirecutter named Tap Score the “best water quality test kit for your home.” Explore unrivaled testing options for over 1000+ contaminants.