Disinfection byproducts · 2023
Perchlorate in Hawthorne-city Water Dept. — San Jose, Ca, CA tap water
Hawthorne-city Water Dept. — San Jose, Ca, CA's 2023 report shows Perchlorate detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Range System-wide | 0–1.9 ug/L | None set |
Average System-wide | Not detected ug/L | None set |
Verbatim from Hawthorne-city Water Dept. — San Jose, Ca, CA's 2023 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 Hawthorne-city Water Dept. — San Jose, Ca, CA compares
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People also ask
+Is there Perchlorate in Hawthorne-city Water Dept. — San Jose, Ca, CA tap water?
Yes — Hawthorne-city Water Dept. — San Jose, Ca, CA's 2023 Consumer Confidence Report lists Perchlorate at Not detected ug/L. Hawthorne-city Water Dept. — San Jose, Ca, CA's 2023 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 2023 Consumer Confidence Report published by the Hawthorne-city Water Dept. — San Jose, 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/hawthorne-city-water-dept-san-jose-ca/2023/source.