Disinfection byproducts · 2024

Perchlorate in Greendale, WI tap water

Detected — no federal limit

Greendale, WI's 2024 report shows Perchlorate detected, but the EPA has not set an enforceable federal limit for it.

The measurement

StatisticValue
Average
System-wide
0.1 ug/L
Range
Range or
0.09–0.11 ug/L

Verbatim from Greendale, WI's 2024 Consumer Confidence Report — source document ↗

About Perchlorate

A chemical used in rocket fuel and fireworks that can also form during disinfection.

Can interfere with thyroid hormone production; has no national enforceable limit but is regulated in some states.

How Greendale, WI compares

Nearby systems also reporting Perchlorate:

People also ask

+Is there Perchlorate in Greendale, WI tap water?

Yes — Greendale, WI's 2024 Consumer Confidence Report lists Perchlorate at 0.1 ug/L. Greendale, WI's 2024 report shows Perchlorate detected, but the EPA has not set an enforceable federal limit for it.

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

The EPA has not set an enforceable federal limit for Perchlorate. Utilities still report any measured levels in their annual Consumer Confidence Report.

+What is Perchlorate?

A chemical used in rocket fuel and fireworks that can also form during disinfection. Can interfere with thyroid hormone production; has no national enforceable limit but is regulated in some states.

+Where does this Perchlorate measurement come from?

This page reproduces the Perchlorate entry from the 2024 Consumer Confidence Report published by the Greendale, WI 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/wi/greendale/2024/source.

Full report
All Greendale, WI water-quality data →
Every contaminant measured in the 2024 report.
Contaminant pillar
Perchlorate across the U.S. →
Every public water system measuring Perchlorate, ranked.