Other · 2026
Nitrate Nitrite in San Diego, City of, CA tap water
San Diego, City of, CA's 2026 Nitrate Nitrite measurement is below the federal limit of 10 MG/L (MCL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average Entry point | 0.21076 MG/L | 10 MG/L MCL |
Highest single sample Other | Not detected MG/L | 10 MG/L MCL |
Highest single sample Source water | Not detected MG/L | 10 MG/L MCL |
Highest single sample Entry point | 0.469 MG/L | 10 MG/L MCL |
Verbatim from San Diego, City of, CA's 2026 Consumer Confidence Report — source document ↗
How San Diego, 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 San Diego, City of, CA tap water?
Yes — San Diego, City of, CA's 2026 Consumer Confidence Report lists Nitrate Nitrite at 0.21076 MG/L. San Diego, City of, CA's 2026 Nitrate Nitrite measurement is below the federal limit of 10 MG/L (MCL).
+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 San Diego, 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/san-diego/2026/source.