Metals · 2024
Chromium, Hexavalent in Pomona - City, Water Dept., CA tap water
Pomona - City, Water Dept., CA's 2024 Consumer Confidence Report shows Chromium, Hexavalent at or above the federal limit (10 UG/L MCL). Measured value is 1.8× the threshold.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Highest single sample Other | Not detected UG/L | None set |
Highest single sample Entry point | 10 UG/L | 10 UG/L MCL |
Highest single sample Source water | 84 UG/L | 10 UG/L MCL |
Average Source water | 17.51590909090909 UG/L | 10 UG/L MCL |
Average Entry point | 5.822173913043478 UG/L | 10 UG/L MCL |
Verbatim from Pomona - City, Water Dept., CA's 2024 Consumer Confidence Report — source document ↗
About Chromium, Hexavalent
Hexavalent chromium ('chromium-6') — the more toxic form of chromium.
A known carcinogen by inhalation; regulated nationally only within the total-chromium limit, with stricter limits in some states.
How Pomona - City, Water Dept., CA compares
5 of the 178 systems measuring Chromium, Hexavalent on The Water Map have it at or above the federal limit:
Nearby systems also reporting Chromium, Hexavalent:
People also ask
+Is there Chromium, Hexavalent in Pomona - City, Water Dept., CA tap water?
Yes — Pomona - City, Water Dept., CA's 2024 Consumer Confidence Report lists Chromium, Hexavalent at 17.51590909090909 UG/L. Pomona - City, Water Dept., CA's 2024 Consumer Confidence Report shows Chromium, Hexavalent at or above the federal limit (10 UG/L MCL). Measured value is 1.8× the threshold.
+What's the federal limit for Chromium, Hexavalent in drinking water?
The federal MCL for Chromium, Hexavalent is 10 UG/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+What is Chromium, Hexavalent?
Hexavalent chromium ('chromium-6') — the more toxic form of chromium. A known carcinogen by inhalation; regulated nationally only within the total-chromium limit, with stricter limits in some states.
+Which other U.S. cities have Chromium, Hexavalent over the federal limit?
5 of the 178 systems on The Water Map measuring Chromium, Hexavalent report it at or above the federal limit. Examples include Santa Rosa, CA, Diablo Water District, CA, Golden State Water Company, CA.
+Where does this Chromium, Hexavalent measurement come from?
This page reproduces the Chromium, Hexavalent entry from the 2024 Consumer Confidence Report published by the Pomona - City, Water Dept., 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/pomona-city-water-dept/2024/source.