Maintenance Guides / Plumbing & Water

Test Drinking Water for Lead and Copper

Difficulty: easyTime: 20 minsEst. Cost: $30 - $100

Why it matters

Lead leaches from solder and brass fittings; the first draw of the day (after 6+ hours stagnation) has the highest concentrations. Chronic low-level exposure causes developmental damage.

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How to do it

  • 1

    Visit your state's health department or EPA website to order an approved lead/copper test kit.

  • 2

    Collect samples after 6+ hours of no water use (typically first draw in the morning).

  • 3

    Fill the small vial from the kitchen tap without running water first; repeat for bathroom.

  • 4

    Include a cold-water and hot-water sample to identify the worst case.

  • 5

    Mail samples to the certified lab according to kit instructions; keep documentation.

  • 6

    If results exceed EPA action level (15 ppb lead, 1.3 ppm copper), install a point-of-use filter and call a plumber to evaluate solder replacement.