Physical & aggregate · 2024
Turbidity in Portland, OR tap water
Portland, OR's 2024 Consumer Confidence Report shows Turbidity at or above the federal limit (1 NTU MCL). Measured value is 1.6× the threshold.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Reported level System-wide | 0.22–1.65 NTU | 1 NTU MCL |
Verbatim from Portland, OR's 2024 Consumer Confidence Report — source document ↗
About Turbidity
A measure of cloudiness from suspended particles in the water.
High turbidity can shelter microbes from disinfection; the EPA enforces it through a treatment-technique standard.
How Portland, OR compares
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People also ask
+Is there Turbidity in Portland, OR tap water?
Yes — Portland, OR's 2024 Consumer Confidence Report lists Turbidity at 0.22–1.65 NTU. Portland, OR's 2024 Consumer Confidence Report shows Turbidity at or above the federal limit (1 NTU MCL). Measured value is 1.6× the threshold.
+What's the federal limit for Turbidity in drinking water?
The federal MCL for Turbidity is 1 NTU. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+What is Turbidity?
A measure of cloudiness from suspended particles in the water. High turbidity can shelter microbes from disinfection; the EPA enforces it through a treatment-technique standard.
+Where does this Turbidity measurement come from?
This page reproduces the Turbidity entry from the 2024 Consumer Confidence Report published by the Portland, OR 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/or/portland/2024/source.