ZipCheckup's reading of Arsenic in Humble, Texas: the highest detected level is 6.2 ppb; the EPA limit is 10 ppb. Arsenic carries a high health-risk designation.

Recent water testing in Humble, Texas has returned Arsenic readings above detection thresholds.

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

Arsenic in Humble Tap Water

Arsenic has been detected in Humble, Texas drinking water at a maximum level of 6.2 ppb — below the EPA MCL of 10 ppb.

This analysis covers 181,805 residents across 4 ZIP codes in Humble.

Humble's overall water quality grade is B (80/100).

Is Arsenic in Humble Water Safe?

Arsenic was detected in Humble 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 Humble: 6.2 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 Humble 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 Texas
• Texas Water Quality
• Humble Water Quality
• Check Your ZIP Code