Exceeds EPA Limit Arsenic EXCEEDS EPA LIMIT

Arsenic in Ceres, CA Drinking Water

Arsenic data for Ceres, California · 54,751 residents · 1 ZIP code

At elevated levels, Arsenic is a recognized health concern in drinking water; in Ceres, California, it has been detected in recent samples logged through federal compliance reporting.

10 ppb
EPA MCL
4
EPA Violations
High
Health Risk
Reverse Osmosis
Best Filter Method

Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-05-14

Arsenic in Ceres Tap Water

Ceres, California has 4 EPA violations related to arsenic in drinking water.

This analysis covers 54,751 residents across 1 ZIP code in Ceres.

Ceres's overall water quality grade is C (59/100).

Is Arsenic in Ceres Water Safe?

Arsenic levels in parts of Ceres exceed the EPA MCL of 10 ppb. The EPA requires water systems to take corrective action when this limit is exceeded.

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.

EPA Violations for Arsenic in Ceres

Date Violation Type Status ZIP Code
2022-01-01 Arsenic (Known) Known 95307
2021-10-01 Arsenic (Known) Known 95307
2021-07-01 Arsenic (Known) Known 95307
2021-04-01 Arsenic (Known) Known 95307

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 Ceres 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.

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