Inorganic chemicals · 2021

Fluoride in Norwalk - City, Water Dept. — Norwalk, Ca, CA tap water

Within the federal limit· 0.2× the limit

Norwalk - City, Water Dept. — Norwalk, Ca, CA's 2021 Fluoride measurement is below the federal limit of 4 mg/L (MCL).

The measurement

StatisticValue
Average
MWD's Surface Water
0.7 mg/L
Range
MWD's Surface Water
0.4–0.9 mg/L
Average
Groundwater
0.24 mg/L
Range
Groundwater
0.2–0.3 mg/L

Verbatim from Norwalk - City, Water Dept. — Norwalk, Ca, CA's 2021 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 Norwalk - City, Water Dept. — Norwalk, Ca, CA compares

5 of the 1248 systems measuring Fluoride on The Water Map have it at or above the federal limit:

Nearby systems also reporting Fluoride:

People also ask

+Is there Fluoride in Norwalk - City, Water Dept. — Norwalk, Ca, CA tap water?

Yes — Norwalk - City, Water Dept. — Norwalk, Ca, CA's 2021 Consumer Confidence Report lists Fluoride at 0.7 mg/L. Norwalk - City, Water Dept. — Norwalk, Ca, CA's 2021 Fluoride measurement is below the federal limit of 4 mg/L (MCL).

+What's the federal limit for Fluoride in drinking water?

The federal MCL 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.

+Which other U.S. cities have Fluoride over the federal limit?

5 of the 1248 systems on The Water Map measuring Fluoride report it at or above the federal limit. Examples include Lake Elizabeth Mutual Water Co. — Elizabeth Lake, Ca, CA, Mcfarland, City of — Mcfarland, Ca, CA, Yonkers, NY.

+Where does this Fluoride measurement come from?

This page reproduces the Fluoride entry from the 2021 Consumer Confidence Report published by the Norwalk - City, Water Dept. — Norwalk, Ca, CA 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/ca/norwalk-city-water-dept-norwalk-ca/2021/source.

Full report
All Norwalk - City, Water Dept. — Norwalk, Ca, CA water-quality data →
Every contaminant measured in the 2021 report.
Contaminant pillar
Fluoride across the U.S. →
Every public water system measuring Fluoride, ranked.