Disinfection byproducts · 2022
NDMA in Hawthorne-city Water Dept. — San Jose, Ca, CA tap water
Hawthorne-city Water Dept. — San Jose, Ca, CA's 2022 report shows NDMA detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average Groundwater | Not detected ng/L | 10 ng/L NL |
Range West Basin MWD | 0–3.5 ng/L | 10 ng/L NL |
Range Groundwater | Not detected ng/L | 10 ng/L NL |
Average West Basin MWD | 1.75 ng/L | 10 ng/L NL |
Verbatim from Hawthorne-city Water Dept. — San Jose, Ca, CA's 2022 Consumer Confidence Report — source document ↗
How Hawthorne-city Water Dept. — San Jose, Ca, CA compares
Nearby systems also reporting NDMA:
People also ask
+Is there NDMA in Hawthorne-city Water Dept. — San Jose, Ca, CA tap water?
Yes — Hawthorne-city Water Dept. — San Jose, Ca, CA's 2022 Consumer Confidence Report lists NDMA at 1.75 ng/L. Hawthorne-city Water Dept. — San Jose, Ca, CA's 2022 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 2022 Consumer Confidence Report published by the Hawthorne-city Water Dept. — 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/hawthorne-city-water-dept-san-jose-ca/2022/source.