Metals · 2024
Aluminum in City of Cupertino, CA tap water
City of Cupertino, CA's 2024 Aluminum measurement is below the federal limit of 1 mg/L (MCL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Range Mountain Surface Water | 0–0.051 mg/L | 1 mg/L MCL |
Range VW Surface Water | 0–0.05 mg/L | 1 mg/L MCL |
Average VW Surface Water | Not detected mg/L | 1 mg/L MCL |
Average Mountain Surface Water | Not detected mg/L | 1 mg/L MCL |
Range Groundwater | 0–0.16 mg/L | 1 mg/L MCL |
Average Groundwater | Not detected mg/L | 1 mg/L MCL |
Verbatim from City of Cupertino, CA's 2024 Consumer Confidence Report — source document ↗
About Aluminum
A common element sometimes used as a treatment coagulant.
Regulated only as a secondary (cosmetic) standard; high levels can discolor water.
How City of Cupertino, CA compares
5 of the 125 systems measuring Aluminum on The Water Map have it at or above the federal limit:
Nearby systems also reporting Aluminum:
People also ask
+Is there Aluminum in City of Cupertino, CA tap water?
Yes — City of Cupertino, CA's 2024 Consumer Confidence Report lists Aluminum at Not detected mg/L. City of Cupertino, CA's 2024 Aluminum measurement is below the federal limit of 1 mg/L (MCL).
+What's the federal limit for Aluminum in drinking water?
The federal MCL for Aluminum is 1 mg/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+What is Aluminum?
A common element sometimes used as a treatment coagulant. Regulated only as a secondary (cosmetic) standard; high levels can discolor water.
+Which other U.S. cities have Aluminum over the federal limit?
5 of the 125 systems on The Water Map measuring Aluminum report it at or above the federal limit. Examples include Salt Lake City, UT, Inglewood, CA, Catoosa Utility District Authority, TN.
+Where does this Aluminum measurement come from?
This page reproduces the Aluminum entry from the 2024 Consumer Confidence Report published by the City of Cupertino, 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/cupertino/2024/source.