Physical & aggregate · 2025
Alkalinity in Phoenix, AZ tap water
Phoenix, AZ's 2025 report shows Alkalinity detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Range Sample Results | 121–167 mg/L | None set |
Verbatim from Phoenix, AZ's 2025 Consumer Confidence Report — source document ↗
About Alkalinity
A measure of the water's capacity to neutralize acids.
Not federally regulated for health; relevant to corrosion control and treatment.
How Phoenix, AZ compares
4 of the 96 systems measuring Alkalinity on The Water Map have it at or above the federal limit:
Nearby systems also reporting Alkalinity:
People also ask
+Is there Alkalinity in Phoenix, AZ tap water?
Yes — Phoenix, AZ's 2025 Consumer Confidence Report lists Alkalinity at 121–167 mg/L. Phoenix, AZ's 2025 report shows Alkalinity detected, but the EPA has not set an enforceable federal limit for it.
+What's the federal limit for Alkalinity in drinking water?
The EPA has not set an enforceable federal limit for Alkalinity. Utilities still report any measured levels in their annual Consumer Confidence Report.
+What is Alkalinity?
A measure of the water's capacity to neutralize acids. Not federally regulated for health; relevant to corrosion control and treatment.
+Which other U.S. cities have Alkalinity over the federal limit?
4 of the 96 systems on The Water Map measuring Alkalinity report it at or above the federal limit. Examples include Pomona, CA, Burbank, CA, San Diego, CA.
+Where does this Alkalinity measurement come from?
This page reproduces the Alkalinity entry from the 2025 Consumer Confidence Report published by the Phoenix, AZ 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/az/phoenix/2025/source.