Inorganic chemicals · 2024
Fluoride in Seattle, WA tap water
Seattle, WA's 2024 Fluoride measurement is below the federal limit of 4 mg/L (MCLG).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average System-wide | 0.7 mg/L | 4 mg/L MCLG |
Range System-wide | 0.6 mg/L | 4 mg/L MCLG |
Verbatim from Seattle, WA's 2024 Consumer Confidence Report — source document ↗
About Fluoride
A mineral often added to drinking water to help prevent tooth decay.
Beneficial at low levels, but long-term exposure above the federal limit can cause bone disease and tooth mottling.
How Seattle, WA compares
Nearby systems also reporting Fluoride:
People also ask
+Is there Fluoride in Seattle, WA tap water?
Yes — Seattle, WA's 2024 Consumer Confidence Report lists Fluoride at 0.7 mg/L. Seattle, WA's 2024 Fluoride measurement is below the federal limit of 4 mg/L (MCLG).
+What's the federal limit for Fluoride in drinking water?
The federal MCLG for Fluoride is 4 mg/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+What is Fluoride?
A mineral often added to drinking water to help prevent tooth decay. Beneficial at low levels, but long-term exposure above the federal limit can cause bone disease and tooth mottling.
+Where does this Fluoride measurement come from?
This page reproduces the Fluoride entry from the 2024 Consumer Confidence Report published by the Seattle, WA 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/wa/seattle/2024/source.