Disinfection byproducts · 2021

Chlorate in San Jose Water — San Jose, Ca, CA tap water

Detected — no federal limit

San Jose Water — San Jose, Ca, CA's 2021 report shows Chlorate detected, but the EPA has not set an enforceable federal limit for it.

The measurement

StatisticValue
Average
Mountain Surface Water
Not detected ug/L
Range
Mountain Surface Water
Not detected ug/L
Average
VW Surface Water
163 ug/L
Range
VW Surface Water
96–291 ug/L

Verbatim from San Jose Water — San Jose, Ca, CA's 2021 Consumer Confidence Report — source document ↗

About Chlorate

A byproduct that can form during disinfection, especially when hypochlorite solutions degrade.

Has no enforceable federal limit but is on the EPA contaminant candidate list; high levels can affect the thyroid.

How San Jose Water — San Jose, Ca, CA compares

Nearby systems also reporting Chlorate:

People also ask

+Is there Chlorate in San Jose Water — San Jose, Ca, CA tap water?

Yes — San Jose Water — San Jose, Ca, CA's 2021 Consumer Confidence Report lists Chlorate at 163 ug/L. San Jose Water — San Jose, Ca, CA's 2021 report shows Chlorate detected, but the EPA has not set an enforceable federal limit for it.

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

The federal NL for Chlorate is 800 ug/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.

+What is Chlorate?

A byproduct that can form during disinfection, especially when hypochlorite solutions degrade. Has no enforceable federal limit but is on the EPA contaminant candidate list; high levels can affect the thyroid.

+Where does this Chlorate measurement come from?

This page reproduces the Chlorate entry from the 2021 Consumer Confidence Report published by the San Jose Water — 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/san-jose-water-san-jose-ca/2021/source.

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