Metals · 2024
Arsenic in City of Thousand Oaks Water Department, CA tap water
City of Thousand Oaks Water Department, CA's 2024 Arsenic measurement is below the federal limit of 10 ug/L (MCL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Reported level MWD Jensen Plant 98% of Supply | Not detected ug/L | 10 ug/L MCL |
Reported level Calleguas LBWFP 2% of Supply | 2–4 ug/L | 10 ug/L MCL |
Verbatim from City of Thousand Oaks Water Department, CA's 2024 Consumer Confidence Report — source document ↗
About Arsenic
A naturally occurring element that also enters water from industry and agriculture.
A known human carcinogen; long-term exposure is linked to skin, bladder, and lung cancer.
How City of Thousand Oaks Water Department, CA compares
5 of the 240 systems measuring Arsenic on The Water Map have it at or above the federal limit:
Nearby systems also reporting Arsenic:
People also ask
+Is there Arsenic in City of Thousand Oaks Water Department, CA tap water?
Yes — City of Thousand Oaks Water Department, CA's 2024 Consumer Confidence Report lists Arsenic at 2–4 ug/L. City of Thousand Oaks Water Department, CA's 2024 Arsenic measurement is below the federal limit of 10 ug/L (MCL).
+What's the federal limit for Arsenic in drinking water?
The federal MCL for Arsenic is 10 ug/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+What is Arsenic?
A naturally occurring element that also enters water from industry and agriculture. A known human carcinogen; long-term exposure is linked to skin, bladder, and lung cancer.
+Which other U.S. cities have Arsenic over the federal limit?
5 of the 240 systems on The Water Map measuring Arsenic report it at or above the federal limit. Examples include Long Beach, CA, Albuquerque, NM, Mesa Del Toro Mwc, CA.
+Where does this Arsenic measurement come from?
This page reproduces the Arsenic entry from the 2024 Consumer Confidence Report published by the City of Thousand Oaks Water Department, 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/thousand-oaks-water-department/2024/source.