Metals · 2024
Lithium in El Cajon, CA tap water
El Cajon, CA's 2024 report shows Lithium detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Minimum Helix Plant | 22 ug/L | 10 ug/L NL |
Maximum Helix Plant | 26 ug/L | 10 ug/L NL |
Average Helix Plant | 25 ug/L | 10 ug/L NL |
Minimum Purchased Water | 24 ug/L | 10 ug/L NL |
Maximum Purchased Water | 32 ug/L | 10 ug/L NL |
Average Purchased Water | 28 ug/L | 10 ug/L NL |
Verbatim from El Cajon, CA's 2024 Consumer Confidence Report — source document ↗
About Lithium
A naturally occurring element found in some groundwater.
No enforceable federal limit; on the EPA contaminant candidate list for further study.
How El Cajon, CA compares
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People also ask
+Is there Lithium in El Cajon, CA tap water?
Yes — El Cajon, CA's 2024 Consumer Confidence Report lists Lithium at 28 ug/L. El Cajon, CA's 2024 report shows Lithium detected, but the EPA has not set an enforceable federal limit for it.
+What's the federal limit for Lithium in drinking water?
The federal NL for Lithium 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 Lithium?
A naturally occurring element found in some groundwater. No enforceable federal limit; on the EPA contaminant candidate list for further study.
+Where does this Lithium measurement come from?
This page reproduces the Lithium 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.