Physical & aggregate · 2024
TOC in Costa Mesa, CA tap water
Costa Mesa, CA's 2024 report shows TOC detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average Diemer | 2.4 mg/L | None set |
Average Weymouth | 2.4 mg/L | None set |
Range System-wide | 2–2.6 mg/L | None set |
Verbatim from Costa Mesa, CA's 2024 Consumer Confidence Report — source document ↗
About TOC
Total organic carbon — a measure of organic material dissolved in the water.
Not harmful itself, but it is the raw material that forms disinfection byproducts; removal is a treatment requirement.
How Costa Mesa, CA compares
Nearby systems also reporting TOC:
People also ask
+Is there TOC in Costa Mesa, CA tap water?
Yes — Costa Mesa, CA's 2024 Consumer Confidence Report lists TOC at 2.4 mg/L. Costa Mesa, CA's 2024 report shows TOC detected, but the EPA has not set an enforceable federal limit for it.
+What's the federal limit for TOC in drinking water?
The EPA has not set an enforceable federal limit for TOC. Utilities still report any measured levels in their annual Consumer Confidence Report.
+What is TOC?
Total organic carbon — a measure of organic material dissolved in the water. Not harmful itself, but it is the raw material that forms disinfection byproducts; removal is a treatment requirement.
+Where does this TOC measurement come from?
This page reproduces the TOC entry from the 2024 Consumer Confidence Report published by the Costa Mesa, 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/costa-mesa/2024/source.