What contaminants are in Oklahoma City's water?

Oklahoma City's water utility tests for 950 different contaminants. Currently, 34 contaminants are above EPA MCLGs. You can view detailed information about each contaminant, including test results, health effects, and comparisons to EPA MCLGs in the sections above.

Do I need a water filter in Oklahoma City?

Yes, we recommend using a water filter in Oklahoma City. With 34 contaminants above EPA MCLGs, a certified water filter can reduce your exposure to these substances. Look for filters certified for NSF-53 (health effects) or NSF-58 (reverse osmosis) that specifically remove the contaminants found in your water.

Does Oklahoma City have any water quality violations?

OKLAHOMA CITY currently has no reported Maximum Contaminant Level (MCL) violations, meaning the water meets all federal legal limits. However, health-based guidelines are often more protective than legal limits, which is why we compare test results to EPA MCLG Levels on this page.

Why does Oklahoma City's water taste like chlorine?

OKLAHOMA CITY uses chloramines, ozone to disinfect the water and kill harmful bacteria and viruses. While chlorine is essential for public health, it can affect the taste and smell of your water. A simple activated carbon filter (like a pitcher filter or faucet mount) can effectively remove chlorine and improve taste.

Is Oklahoma City's water hard or soft?

Oklahoma City's water has 157 PPM average hardness. Soft water is generally easier on plumbing and appliances, and requires less soap for cleaning.

What are the main contaminants in Oklahoma City tap water?

The main contaminants of concern in Oklahoma City's tap water include Bromoform, Uranium, Arsenic. These substances were found above EPA health-based guidelines. You can view detailed information about each contaminant, including health effects and recommended filters, in the contaminants section above.

Can you drink tap water in Oklahoma City?

While you can technically drink tap water in Oklahoma City as it meets legal requirements, 34 contaminants are above EPA health guidelines. We recommend using a certified water filter for optimal protection, especially for vulnerable individuals.

How often is Oklahoma City's water tested?

OKLAHOMA CITY is required by federal law to test water quality regularly. The frequency depends on the contaminant - some are tested daily (like bacteria), while others are tested monthly, quarterly, or annually. The test results shown on this page are from the most recent testing period reported to the EPA.

Where does Oklahoma City's tap water come from?

Oklahoma City's drinking water comes from surface water. Surface water sources include rivers, lakes, and reservoirs, which require more extensive treatment to remove sediments and potential contaminants. The utility treats this water using conventional, filtration, pre-oxidation with chlorine, softening before distribution.

What is the overall water quality in Oklahoma City?

Oklahoma City has 34 contaminants above EPA health guidelines (MCLGs) out of 950+ tested. While meeting federal legal limits (MCLs), the presence of contaminants above health-based guidelines suggests that using a certified water filter could provide additional protection, especially for sensitive populations.

What are the most common contaminants detected in Oklahoma City water?

The most commonly detected contaminants in Oklahoma City water include: Gross Beta Activity, Bromoform, Uranium, Arsenic, Gross Alpha Activity. Of these, 34 exceed EPA health guidelines. These contaminants are regularly monitored by OKLAHOMA CITY and reported to the EPA. View the detailed contaminant section above for specific levels and health information.

Oklahoma City Tap Water Quality Report

Oklahoma City's water has 34 contaminants above EPA MCLGs. We recommend using a certified water filter.

Utilities

11 Utilities

People Served

719,824

MCL Violations

Last Updated

2025-10-21

Is Oklahoma City Tap Water Safe to Drink?

Oklahoma City's water has 34 contaminants above EPA health-based guidelines. We strongly recommend using a certified water filter to reduce exposure to these contaminants. Check our filter recommendations below for NSF-certified options that can remove the specific contaminants found in Oklahoma City's water.

The data below shows test results from 11 water utilities serving 719,824 people in the Oklahoma City area. Water quality testing is conducted regularly and reported to the EPA. This report was last updated 2025-10-21.

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Oklahoma City Water Service Areas

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Recommended Water Filters for Oklahoma City

Based on Oklahoma City's water quality data, these NSF-certified filters are recommended to remove contaminants above EPA MCLGs.

Our Pick

EDITOR'S CHOICE

BEST OVERALL PERFORMANCE

AquaTru

Classic

449

NSF Certified:

NSF-42

NSF-53

NSF-58

NSF-401

NSF-P473

NSF-372

Flow Rate

0.04 gpm

Daily Production

600 gpd

Removes 23 contaminants:

83+, Lead, Fluoride, Strontium, Uranium +18 more

View Details

Best Value

EDITOR'S CHOICE

BEST EFFICIENCY

AquaTru

Carafe

349

NSF Certified:

NSF-53

NSF-42

NSF-58

NSF-401

NSF-372

NSF-P473

Flow Rate

0.3 gpm

Daily Production

4 gpd

Removes 17 contaminants:

PFOA, PFOS, Chlorine, Lead, Fluoride +12 more

View Details

BEST LEAD REMOVAL

Solventum Purification Inc.

3MRO401

(35 reviews)

679.95

NSF Certified:

NSF-58

Daily Production

11.48 gpd

Removes 15 contaminants:

Arsenic, Barium, Cadmium, Chromium (Total), Chromium (VI) +10 more

View Details

BEST LEAD REMOVAL

Solventum Purification Inc.

3MRO301

(13 reviews)

586.95

NSF Certified:

NSF-58

Daily Production

11.48 gpd

Removes 15 contaminants:

Arsenic, Barium, Cadmium, Chromium (Total), Chromium (VI) +10 more

View Details

Browse All Water Filter Types

Verify Your Water Quality with Independent Testing

With 34 contaminants above EPA health guidelines, independent laboratory testing provides a second opinion and can track changes over time.

RECOMMENDED

SimpleLab

Advanced Home Water Test

$369

Most comprehensive home water test including all standard tests plus additional parameters for ultimate peace of mind.

(19 reviews)

7-10 days

300+ tested

EPA Certified

Tests 300+ parameters

Most thorough analysis available

EPA-certified laboratory

Order Test Kit

SimpleLab

Standard Home Water Test

$232

Comprehensive water analysis testing over 200 contaminants including bacteria, heavy metals, and chemical compounds.

(209 reviews)

7-10 days

200+ tested

EPA Certified

Tests 200+ contaminants

EPA-certified laboratory

Easy mail-in sample collection

Order Test Kit

Tap Score

Haloacetic Acids (HAA9) Test

$275

Tests for disinfection byproducts formed when chlorine reacts with organic matter in water treatment.

7-10 days

9+ tested

EPA Certified

Tests 9 HAA compounds

Identifies chlorination byproducts

Important for chlorinated water

Order Test Kit

EPA-Certified Labs

7-10 Day Results

Easy Mail-In Collection

Browse All Test Kits

Frequently Asked Questions About Oklahoma City Tap Water

Oklahoma City's water has 34 contaminants above EPA MCLGs. We strongly recommend using a certified water filter to reduce exposure to these contaminants. Check our filter recommendations below for NSF-certified options that can remove the specific contaminants found in Oklahoma City's water.

Oklahoma City Tap Water Quality Report

Is Oklahoma City Tap Water Safe to Drink?

Oklahoma City Water Service Areas

Recommended Water Filters for Oklahoma City

Classic

Carafe

3MRO401

3MRO301

Browse All Water Filter Types

Verify Your Water Quality with Independent Testing

Advanced Home Water Test

Standard Home Water Test

Haloacetic Acids (HAA9) Test

Frequently Asked Questions About Oklahoma City Tap Water

Is Oklahoma City tap water safe to drink?

What contaminants are in Oklahoma City's water?

Do I need a water filter in Oklahoma City?

Does Oklahoma City have any water quality violations?

Why does Oklahoma City's water taste like chlorine?

Is Oklahoma City's water hard or soft?

What are the main contaminants in Oklahoma City tap water?

Can you drink tap water in Oklahoma City?

How often is Oklahoma City's water tested?

Where does Oklahoma City's tap water come from?

What is the overall water quality in Oklahoma City?

What are the most common contaminants detected in Oklahoma City water?

Stay Informed About Your Water Quality