Metals · 2025
Calcium in Signal Mountain, TN tap water
Signal Mountain, TN's 2025 report shows Calcium detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Range Range Detected | 20–22 mg/L | None set |
Average Citico Water Treatment Plant | 21 mg/L | None set |
Verbatim from Signal Mountain, TN's 2025 Consumer Confidence Report — source document ↗
About Calcium
A naturally occurring mineral that contributes to water hardness.
Not federally regulated for health; affects scaling and taste.
How Signal Mountain, TN compares
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People also ask
+Is there Calcium in Signal Mountain, TN tap water?
Yes — Signal Mountain, TN's 2025 Consumer Confidence Report lists Calcium at 21 mg/L. Signal Mountain, TN's 2025 report shows Calcium detected, but the EPA has not set an enforceable federal limit for it.
+What's the federal limit for Calcium in drinking water?
The EPA has not set an enforceable federal limit for Calcium. Utilities still report any measured levels in their annual Consumer Confidence Report.
+What is Calcium?
A naturally occurring mineral that contributes to water hardness. Not federally regulated for health; affects scaling and taste.
+Where does this Calcium measurement come from?
This page reproduces the Calcium entry from the 2025 Consumer Confidence Report published by the Signal Mountain, TN 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/tn/signal-mountain/2025/source.