Metals · 2021

Arsenic in Petaluma, City of — Petaluma, Ca, CA tap water

Over the federal limit· 1.3× the limit

Petaluma, City of — Petaluma, Ca, CA's 2021 Consumer Confidence Report shows Arsenic at or above the federal limit (10 ug/L MCL). Measured value is 1.3× the threshold.

The measurement

StatisticValue
Reported level
Petaluma Public Works & Utilities
3.29 ug/L
Range
Petaluma Public Works & Utilities
0–13 ug/L
Reported level
Sonoma County Water Agency
Not detected ug/L

Verbatim from Petaluma, City of — Petaluma, Ca, CA's 2021 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 Petaluma, City of — Petaluma, Ca, CA compares

4 of the 174 CA 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 Petaluma, City of — Petaluma, Ca, CA tap water?

Yes — Petaluma, City of — Petaluma, Ca, CA's 2021 Consumer Confidence Report lists Arsenic at 0–13 ug/L. Petaluma, City of — Petaluma, Ca, CA's 2021 Consumer Confidence Report shows Arsenic at or above the federal limit (10 ug/L MCL). Measured value is 1.3× the threshold.

+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?

4 of the 174 CA systems on The Water Map measuring Arsenic report it at or above the federal limit. Examples include Templeton Csd — Templeton, Ca, CA, San Miguel Community Services District — San Miguel, Ca, CA, Tulare, City of — Tulare, Ca, CA.

+Where does this Arsenic measurement come from?

This page reproduces the Arsenic entry from the 2021 Consumer Confidence Report published by the Petaluma, City of — Petaluma, 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/petaluma-petaluma-ca/2021/source.

Full report
All Petaluma, City of — Petaluma, Ca, CA water-quality data →
Every contaminant measured in the 2021 report.
Contaminant pillar
Arsenic across the U.S. →
Every public water system measuring Arsenic, ranked.