ZipCheckup's reading of Arsenic in Lake Hiawatha, New Jersey: the highest detected level is 570 ppb; the EPA limit is 10 ppb. Arsenic carries a high health-risk designation.

Within Lake Hiawatha, New Jersey, Arsenic has been detected in water samples drawn from the public supply - the results are part of the official EPA compliance record for systems here.

Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-07-13

Arsenic in Lake Hiawatha Tap Water

Arsenic has been detected in Lake Hiawatha, New Jersey drinking water at a maximum level of 570 ppb — 57x the EPA MCL.

This analysis covers 10,406 residents across 1 ZIP code in Lake Hiawatha.

Lake Hiawatha's overall water quality grade is F (35/100).

Is Arsenic in Lake Hiawatha Water Safe?

If you live in an affected ZIP code, consider installing a reverse osmosis filter certified under NSF 53 / NSF 58 and testing your water independently.

Arsenic Levels by ZIP Code

Average arsenic level across Lake Hiawatha: 570 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 Lake Hiawatha 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 New Jersey
• New Jersey Water Quality
• Lake Hiawatha Water Quality
• Check Your ZIP Code