Every kit is a little different, but the basics are universal. You’ll usually dip a test strip into the water or add a chemical reagent. Wait the exact time the instructions say—no guessing, no impatience.
The strip will change color. Compare it to the chart inside your kit. A light color is boring (good!), a darker color means lead is throwing a party. Read the chart in natural light, not under a dim lamp or your phone flashlight.
How to Detect Lead in Water (with Pictures) - wikiHow Life
If you’re using a lab, you’ll just label your sample, seal it, and mail it off. Then you wait. It feels like waiting for a pregnancy test, but less dramatic.
What Do Those Results Mean?
If your test shows zero lead? High five yourself. You’ve got clean pipes and clear conscience. Go fill that water bottle.
If it shows any level above 15 parts per billion (the EPA action level), it’s time to act. Don’t freak out, but don’t ignore it either. Stop drinking tap water for now—use bottled or filtered water that’s certified for lead reduction.
Call a plumber or your local water authority. They can help you find the source of the lead, whether it’s a pipe, a fixture, or your city’s supply. You might also want a filter certified to remove lead (look for NSF/ANSI Standard 53).