Metals · 2026
Lead in City of Hayward, CA tap water
City of Hayward, CA's 2026 report shows Lead detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average Source water | 0.4075 UG/L | None set |
Highest single sample Source water | 0.88 UG/L | None set |
Verbatim from City of Hayward, CA's 2026 Consumer Confidence Report — source document ↗
About Lead
A toxic metal that leaches into water from old service lines, solder, and plumbing fixtures.
There is no safe level of lead; it harms brain development in children and raises blood pressure in adults. The EPA sets an action level, not a health goal above zero.
How City of Hayward, CA compares
5 of the 433 systems measuring Lead on The Water Map have it at or above the federal limit:
Nearby systems also reporting Lead:
People also ask
+Is there Lead in City of Hayward, CA tap water?
Yes — City of Hayward, CA's 2026 Consumer Confidence Report lists Lead at 0.4075 UG/L. City of Hayward, CA's 2026 report shows Lead detected, but the EPA has not set an enforceable federal limit for it.
+What's the federal limit for Lead in drinking water?
The EPA has not set an enforceable federal limit for Lead. Utilities still report any measured levels in their annual Consumer Confidence Report.
+What is Lead?
A toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. There is no safe level of lead; it harms brain development in children and raises blood pressure in adults. The EPA sets an action level, not a health goal above zero.
+Which other U.S. cities have Lead over the federal limit?
5 of the 433 systems on The Water Map measuring Lead report it at or above the federal limit. Examples include Santa Rosa, CA, Atlanta, GA, City of San Jacinto, CA.
+Where does this Lead measurement come from?
This page reproduces the Lead entry from the 2026 Consumer Confidence Report published by the City of Hayward, CA water utility — the annual drinking-water report every U.S. utility is required by federal law to publish. The original source document is archived at /water/ca/hayward/2026/source.