Other · 2026
Nitrate Nitrite in Riverside, City of, CA tap water
Riverside, City of, CA's 2026 Nitrate Nitrite level is between 80% and 100% of the federal limit (10 MG/L MCL) — measured but not in violation.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Highest single sample Source water | 12 MG/L | 10 MG/L MCL |
Average Source water | 9.7 MG/L | 10 MG/L MCL |
Verbatim from Riverside, City of, CA's 2026 Consumer Confidence Report — source document ↗
How Riverside, City of, CA compares
4 of the 127 systems measuring Nitrate Nitrite on The Water Map have it at or above the federal limit:
Nearby systems also reporting Nitrate Nitrite:
People also ask
+Is there Nitrate Nitrite in Riverside, City of, CA tap water?
Yes — Riverside, City of, CA's 2026 Consumer Confidence Report lists Nitrate Nitrite at 9.7 MG/L. Riverside, City of, CA's 2026 Nitrate Nitrite level is between 80% and 100% of the federal limit (10 MG/L MCL) — measured but not in violation.
+What's the federal limit for Nitrate Nitrite in drinking water?
The federal MCL for Nitrate Nitrite is 10 MG/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+Which other U.S. cities have Nitrate Nitrite over the federal limit?
4 of the 127 systems on The Water Map measuring Nitrate Nitrite report it at or above the federal limit. Examples include Pomona - City, Water Dept., CA, Pomona - City, Water Dept., CA, Pomona - City, Water Dept., CA.
+Where does this Nitrate Nitrite measurement come from?
This page reproduces the Nitrate Nitrite entry from the 2026 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/2026/source.