Metals · 2024
Aluminum in El Cajon, CA tap water
El Cajon, CA's 2024 Aluminum measurement is below the federal limit of 1 mg/L (MCL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Minimum Helix Plant | 0.06 mg/L | 1 mg/L MCL |
Maximum Purchased Water | 0.16 mg/L | 1 mg/L MCL |
Average Purchased Water | 63 | 200 MCL |
Minimum Purchased Water | Not detected | 200 MCL |
Average Helix Plant | 140 | 200 MCL |
Maximum Helix Plant | 230 | 200 MCL |
Maximum Purchased Water | 160 | 200 MCL |
Maximum Helix Plant | 0.23 mg/L | 1 mg/L MCL |
Average Helix Plant | 0.14 mg/L | 1 mg/L MCL |
Minimum Purchased Water | Not detected mg/L | 1 mg/L MCL |
Minimum Helix Plant | 64 | 200 MCL |
Average Purchased Water | Not detected mg/L | 1 mg/L MCL |
Verbatim from El Cajon, 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 El Cajon, 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 El Cajon, CA tap water?
Yes — El Cajon, CA's 2024 Consumer Confidence Report lists Aluminum at 140. El Cajon, 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 El Cajon, 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/el-cajon/2024/source.