Contaminant · Health
What Lead is, where it hides, and what actually removes it.
No safe level — but certified filters can remove it.
Short answer
Lead reaches tap water mostly from service lines and household plumbing, not the source. A certified removal filter is the practical fix while utilities replace old pipes.
Where it comes from
Homes with pre-1986 plumbing, lead service lines, or solder joints; also newer homes with brass fixtures that can leach small amounts.
- •Lead service lines (pre-1986)
- •Solder and brass fittings in household plumbing
- •Older faucets and fixtures
Last reviewed September 2026
Health context
What Lead does to health
Grouped by who is most affected, with the practical steps that follow from it. This is a plain-language summary, not our own testing.
Children
Even low levels are linked to lower IQ, attention issues and slowed growth; there is no safe blood lead level.
Adults
Can raise blood pressure, and repeated exposure can affect the kidneys.
What to do about it
- •Test twice (first-draw + 30-sec flush) to see whether lead is leaching.
- •Use only NSF 53-certified lead pitchers or faucets.
- •Flush 2 minutes before drinking, especially after mornings or vacations.
Regulatory source
EPA Lead and Copper Rule uses an action level (not a classic MCL). Prefer NSF/ANSI 53 certified-for-lead models over vague “removes metals” claims.
Certified (NSF/ANSI or WQA listing for the exact model) is not the same as a manufacturer "claims-only" statement on a product page.
Test before you treat
How to actually test for it
DIY strips mislead for many contaminants. Here’s the honest method for finding Lead.
Certified first-draw + 30-second flush sample
Lead is particulate — take a proper first-draw AND flushed sample at a certified lab; a running-tap test is not enough.
Lab methodLab-certified sampling kit
Filter guidance
What actually removes it (and what does not)
Certification matters more than a marketing claim. Here’s the ranking.
RO
Reverse osmosis removes lead to below detection when certified.
Activated carbon
A block carbon filter with an NSF/ANSI 53 lead claim handles particulate lead best.
Normalized database
Compare certified options
Same contaminants, same columns, real source links. Blanks mean “not stated” — we don’t invent numbers.
| Product | NSF |
|---|---|
PUR PLUS Horizontal Faucet Mount System Activated carbon | NSF 42 certifiedNSF 53 certifiedNSF 58 — not statedNSF 401 — not stated |
Clearly Filtered 10-Cup Water Filter Pitcher Composite | NSF 42 certifiedNSF 53 — not statedNSF 58 — not statedNSF 401 — not stated |
Epic Water Filters Pure Pitcher Composite | NSF 42 — vendor claimNSF 53 — vendor claimNSF 58 — not statedNSF 401 — not stated |
AquaTru Glass Carafe Countertop RO RO | NSF 42 certifiedNSF 53 certifiedNSF 58 certifiedNSF 401 certified |
APEC ROES-50 Essence 5-Stage RO RO | NSF 42 — not statedNSF 53 — not statedNSF 58 certifiedNSF 401 — not stated |
FAQ
Common questions
+Is Lead in my tap water?
Only a certified lab test (not a taste test or a strip) answers that reliably.
+Does boiling remove Lead?
No. Boiling concentrates most contaminants rather than removing them.
+What's the safest first step?
Test before you treat, then choose a filter type certified for Lead.