In Broad Brook, Connecticut, Arsenic has been detected in the public water supply — a contaminant that health agencies track because of documented effects associated with prolonged exposure at elevated concentrations.

Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-06-04

Arsenic in Broad Brook Tap Water

Arsenic has been detected in Broad Brook, Connecticut drinking water at a maximum level of 44 ppb — 4.4x the EPA MCL.

This analysis covers 6,833 residents across 1 ZIP code in Broad Brook.

Broad Brook's overall water quality grade is A (87/100).

Is Arsenic in Broad Brook Water Safe?

Arsenic was detected in Broad Brook water but currently falls within EPA limits. However, some health organizations argue the EPA MCL may not be protective enough.

If you are concerned, a reverse osmosis filter can reduce arsenic levels further.

Arsenic Levels by ZIP Code

Average arsenic level across Broad Brook: 44 ppb

Health Effects of Arsenic

• Increased risk of skin, bladder, lung, and kidney cancer
• Cardiovascular disease and type 2 diabetes
• Skin changes (darkening, thickening, lesions)
• Developmental effects in children exposed in utero

Health risk severity: High. Governed by the Arsenic Rule (2006).

How Arsenic Gets Into Drinking Water

• Natural deposits in rock and soil (especially in western U.S.)
• Runoff from orchards and glass/electronics production
• Historical use of arsenic-based pesticides
• Well water in areas with arsenic-rich geology

What to Do About Arsenic in Broad Brook Water

1. Install a reverse osmosis (RO) system certified under NSF 58
2. Adsorptive media filters (iron-based) can also reduce arsenic
3. Have well water tested if on a private supply
4. Boiling water does NOT remove arsenic — it concentrates it

Look for filters certified under NSF 53 / NSF 58 for arsenic removal.

Related

• Arsenic — National Overview
• Arsenic in Connecticut
• Connecticut Water Quality
• Broad Brook Water Quality
• Check Your ZIP Code