Exceeds EPA Limit Arsenic EXCEEDS EPA LIMIT

Arsenic in Oklahoma City, OK Drinking Water

Arsenic data for Oklahoma City, Oklahoma · 695,373 residents · 42 ZIP codes

ZipCheckup's reading of Arsenic in Oklahoma City, Oklahoma: Arsenic carries a high health-risk designation.

Federal water monitoring extends to thousands of public water systems, and in Oklahoma City, Oklahoma, that tracking has turned up Arsenic - the detection is logged in the EPA compliance record and reflects samples collected under routine Safe Drinking Water Act reporting requirements.

10 ppb
EPA MCL
21
EPA Violations
High
Health Risk
Reverse Osmosis
Best Filter Method

Data: EPA SDWIS, CCR Reports, ECHO

Arsenic in Oklahoma City Tap Water

Oklahoma City, Oklahoma has 21 EPA violations related to arsenic in drinking water.

This analysis covers 695,373 residents across 42 ZIP codes in Oklahoma City.

Is Arsenic in Oklahoma City Water Safe?

Arsenic levels in parts of Oklahoma City 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 Oklahoma City

Date Violation Type Status ZIP Code
2026-01-01 Arsenic (Known) Known 73139
2026-01-01 Arsenic (Known) Known 73159
2026-01-01 Arsenic (Known) Known 73169
2026-01-01 Arsenic (Known) Known 73170
2026-01-01 Arsenic (Known) Known 73173
2026-01-01 Arsenic (Known) Known 73179
2024-10-01 Arsenic (Known) Known 73139
2024-10-01 Arsenic (Known) Known 73149
2024-10-01 Arsenic (Known) Known 73160
2024-10-01 Arsenic (Known) Known 73165
2024-10-01 Arsenic (Known) Known 73170
2023-01-01 Arsenic (Resolved) Resolved 73139
2023-01-01 Arsenic (Resolved) Resolved 73149
2023-01-01 Arsenic (Resolved) Resolved 73160
2023-01-01 Arsenic (Resolved) Resolved 73165
2023-01-01 Arsenic (Resolved) Resolved 73170
2022-10-01 Arsenic (Resolved) Resolved 73139
2022-10-01 Arsenic (Resolved) Resolved 73149
2022-10-01 Arsenic (Resolved) Resolved 73160
2022-10-01 Arsenic (Resolved) Resolved 73165
... 1 more violations

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 Oklahoma City 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

HomeContaminantsArsenicOklahoma → Oklahoma City

How to cite this page

APA ZipCheckup. (2026). Arsenic in Oklahoma City, OK Drinking Water. https://zipcheckup.com/contaminants/arsenic/oklahoma-city-ok/
BibTeX
@misc{zipcheckup-contaminants-arsenic-oklahoma-city-ok,
  author = {{ZipCheckup}},
  title  = {{Arsenic in Oklahoma City, OK Drinking Water}},
  year   = {2026},
  url    = {https://zipcheckup.com/contaminants/arsenic/oklahoma-city-ok/}
}

Page version: September 2026.

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