Other · 2024
Diquat in Ontario, CA tap water
Ontario, CA's 2024 Diquat level is between 80% and 100% of the federal limit — measured but not in violation.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Reported level Source water | 18 ug/L | None set |
Verbatim from Ontario, CA's 2024 Consumer Confidence Report — source document ↗
How Ontario, CA compares
1 of the 8 CA systems measuring Diquat on The Water Map have it at or above the federal limit:
Nearby systems also reporting Diquat:
People also ask
+Is there Diquat in Ontario, CA tap water?
Yes — Ontario, CA's 2024 Consumer Confidence Report lists Diquat at 18 ug/L. Ontario, CA's 2024 Diquat level is between 80% and 100% of the federal limit — measured but not in violation.
+What's the federal limit for Diquat in drinking water?
The EPA has not set an enforceable federal limit for Diquat. Utilities still report any measured levels in their annual Consumer Confidence Report.
+Which other U.S. cities have Diquat over the federal limit?
1 of the 8 CA systems on The Water Map measuring Diquat report it at or above the federal limit. Examples include Delano, City of — Delano, Ca, CA.
+Where does this Diquat measurement come from?
This page reproduces the Diquat entry from the 2024 Consumer Confidence Report published by the Ontario, 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/ontario/2024/source.