Metals · 2025
Zinc in Riverside, City of, CA tap water
Riverside, City of, CA's 2025 Zinc measurement is below the federal limit of 5000 UG/L (MCL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Highest single sample Distribution | 22 UG/L | 5000 UG/L MCL |
Highest single sample Entry point | 27 UG/L | 5000 UG/L MCL |
Average Entry point | 10.447368421052632 UG/L | 5000 UG/L MCL |
Average Distribution | 11.384615384615385 UG/L | 5000 UG/L MCL |
Highest single sample Source water | Not detected UG/L | 5000 UG/L MCL |
Verbatim from Riverside, City of, CA's 2025 Consumer Confidence Report — source document ↗
About Zinc
A naturally occurring metal that can also enter water from corroding pipes.
Regulated only as a secondary (cosmetic) standard; high levels cause a metallic taste.
How Riverside, City of, CA compares
Nearby systems also reporting Zinc:
People also ask
+Is there Zinc in Riverside, City of, CA tap water?
Yes — Riverside, City of, CA's 2025 Consumer Confidence Report lists Zinc at 11.384615384615385 UG/L. Riverside, City of, CA's 2025 Zinc measurement is below the federal limit of 5000 UG/L (MCL).
+What's the federal limit for Zinc in drinking water?
The federal MCL for Zinc is 5000 UG/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+What is Zinc?
A naturally occurring metal that can also enter water from corroding pipes. Regulated only as a secondary (cosmetic) standard; high levels cause a metallic taste.
+Where does this Zinc measurement come from?
This page reproduces the Zinc entry from the 2025 Consumer Confidence Report published by the Riverside, City of, 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/riverside/2025/source.