Physical & aggregate · 2024
Hardness in Indianapolis, IN tap water
Indianapolis, IN's 2024 report shows Hardness detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average System-wide | 317 mg/L | None set |
Maximum Maximum of All Samples | 460 mg/L | None set |
Range System-wide | 148–460 mg/L | None set |
Average System-wide | 360 mg/L | None set |
Maximum Maximum of All Samples | 470 mg/L | None set |
Range System-wide | 270–470 mg/L | None set |
Average System-wide | 366 mg/L | None set |
Maximum Maximum of All Samples | 444 mg/L | None set |
Range System-wide | 333–444 mg/L | None set |
Verbatim from Indianapolis, IN's 2024 Consumer Confidence Report — source document ↗
About Hardness
A measure of dissolved calcium and magnesium minerals.
Not federally regulated for health; affects scaling, soap use, and taste.
How Indianapolis, IN compares
Nearby systems also reporting Hardness:
People also ask
+Is there Hardness in Indianapolis, IN tap water?
Yes — Indianapolis, IN's 2024 Consumer Confidence Report lists Hardness at 366 mg/L. Indianapolis, IN's 2024 report shows Hardness detected, but the EPA has not set an enforceable federal limit for it.
+What's the federal limit for Hardness in drinking water?
The EPA has not set an enforceable federal limit for Hardness. Utilities still report any measured levels in their annual Consumer Confidence Report.
+What is Hardness?
A measure of dissolved calcium and magnesium minerals. Not federally regulated for health; affects scaling, soap use, and taste.
+Where does this Hardness measurement come from?
This page reproduces the Hardness entry from the 2024 Consumer Confidence Report published by the Indianapolis, IN 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/in/indianapolis/2024/source.