Physical & aggregate · 2023
TOC in Los Angeles LADWP, CA tap water
Los Angeles LADWP, CA's 2023 report shows TOC detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average MWD Jensen Plant | 2.4 mg/L | None set |
Range MWD Diemer Plant | 2–2.5 mg/L | None set |
Range Northern Combined Wells | 1.5–2.4 mg/L | None set |
Range Los Angeles Aqueduct Filtration Plant | 1.7–2 mg/L | None set |
Average Los Angeles Aqueduct Filtration Plant | 1.8 mg/L | None set |
Average Southern Combined Wells | 1.7 mg/L | None set |
Average MWD Diemer Plant | 2.4 mg/L | None set |
Average MWD Weymouth Plant | 2.4 mg/L | None set |
Range MWD Weymouth Plant | 2.1–2.6 mg/L | None set |
Range MWD Jensen Plant | 2–2.5 mg/L | None set |
Average Northern Combined Wells | 1.9 mg/L | None set |
Range Southern Combined Wells | 1.5–2.1 mg/L | None set |
Verbatim from Los Angeles LADWP, CA's 2023 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 Los Angeles LADWP, CA compares
5 of the 211 systems measuring TOC on The Water Map have it at or above the federal limit:
Nearby systems also reporting TOC:
People also ask
+Is there TOC in Los Angeles LADWP, CA tap water?
Yes — Los Angeles LADWP, CA's 2023 Consumer Confidence Report lists TOC at 2.4 mg/L. Los Angeles LADWP, CA's 2023 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.
+Which other U.S. cities have TOC over the federal limit?
5 of the 211 systems on The Water Map measuring TOC report it at or above the federal limit. Examples include Kansas City, KS, Centennial, CO, Gilbert, AZ.
+Where does this TOC measurement come from?
This page reproduces the TOC entry from the 2023 Consumer Confidence Report published by the Los Angeles LADWP, 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/los-angeles-ladwp/2023/source.