Home Safety / Products / Lead Service Line and Lead Plumbing (Pre-1986)

Lead Service Line and Lead Plumbing (Pre-1986) — household safety profile

Extreme risk

Lead service lines (LSLs) connecting municipal water mains to homes, and interior lead solder/brass fixtures in pre-1986 buildings.

What is this product?

Lead service lines (LSLs) connecting municipal water mains to homes, and interior lead solder/brass fixtures in pre-1986 buildings. EPA estimates 9.2 million LSLs remain in the US. Lead and Copper Rule Improvements (LCRI, 2024) requires full LSL replacement within 10 years. Partial LSL replacement can temporarily increase lead levels due to galvanic corrosion at dissimilar metal junctions. Corrosion control treatment (orthophosphate) reduces but does not eliminate lead leaching.

What's in it

Click any compound name for its full safety profile, regulatory consensus, and exposure data.

Pipe Material

Who's most at risk

  • Children — Developing endocrine and neurological systems, higher exposure per body weight
  • Infants — Developing organ systems, higher exposure per body weight, immature detoxification systems
  • Pregnant Women — Fetal exposure via placental transfer; developing fetal organ systems

Red flags — when to walk away

  • Aging infrastructure without inspection or testing — Degradation increases contamination risk over time.

Green flags — what to look for

  • NSF or third-party certification — Independent testing for safety standards.

Safer alternatives

  • Full lead service line replacement — utility responsibility under LCRI
  • NSF 53 certified point-of-use filter at kitchen tap — Alternative
  • Bottled water for infant formula preparation until LSL replaced — Alternative

Frequently asked questions

Who should be careful with Lead Service Line and Lead Plumbing (Pre-1986)?

Vulnerable populations identified for this product type: children, infants, pregnant women.

Are there safer alternatives to Lead Service Line and Lead Plumbing (Pre-1986)?

Yes — consider: Full lead service line replacement; NSF 53 certified point-of-use filter at kitchen tap; Bottled water for infant formula preparation until LSL replaced. See the Safer alternatives section above for details.

Look up Lead Service Line and Lead Plumbing (Pre-1986) in the home app

Search by ingredient, browse by category, or compare to alternatives in the live app.

Open in home View raw API data

Reference data, not professional advice. Aggregates publicly available regulatory and scientific information. Why we built ALETHEIA →