Water
Moderate burden — Old Lead Plumbing adds a moderate, reducible exposure.
Lead service lines or old solder in home plumbing.
Each driver rated 0 (none) to 10 (worst)
Evidence strength: strong · Detox Score = 100 − hazard×4.6 − exposure×3.4 − persistence×2.6, clamped 1–100.
A Detox Score of 42 places old lead plumbing in the Moderate band. The chemical-hazard rating is what drives the score down. Lead pipes and solder can leach lead into tap water, and there is no safe level of lead. Have the water tested and use a filter certified for lead while lines are replaced.
Old Lead Plumbing has a Detox Score of 42 out of 100 (Moderate burden), which means it adds a moderate, reducible exposure. Lead pipes and solder can leach lead into tap water, and there is no safe level of lead. Have the water tested and use a filter certified for lead while lines are replaced.
A lower-exposure swap for old lead plumbing is: Test water, use a certified lead filter, replace lead lines. Lead pipes and solder can leach lead into tap water, and there is no safe level of lead. Have the water tested and use a filter certified for lead while lines are replaced.