Disinfection byproducts · 2024
NDMA in El Cajon, CA tap water
El Cajon, CA's 2024 report shows NDMA detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Minimum Helix Plant | Not detected ng/L | 10 ng/L NL |
Maximum Helix Plant | Not detected ng/L | 10 ng/L NL |
Average Helix Plant | Not detected ng/L | 10 ng/L NL |
Minimum Purchased Water | Not detected ng/L | 10 ng/L NL |
Maximum Purchased Water | 2.5 ng/L | 10 ng/L NL |
Average Purchased Water | Not detected ng/L | 10 ng/L NL |
Verbatim from El Cajon, CA's 2024 Consumer Confidence Report — source document ↗
How El Cajon, CA compares
Nearby systems also reporting NDMA:
People also ask
+Is there NDMA in El Cajon, CA tap water?
Yes — El Cajon, CA's 2024 Consumer Confidence Report lists NDMA at Not detected ng/L. El Cajon, CA's 2024 report shows NDMA detected, but the EPA has not set an enforceable federal limit for it.
+What's the federal limit for NDMA in drinking water?
The federal NL for NDMA is 10 ng/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+Where does this NDMA measurement come from?
This page reproduces the NDMA entry from the 2024 Consumer Confidence Report published by the El Cajon, 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/el-cajon/2024/source.