Choctaw Tap Water Quality Report
Choctaw's water has 3 contaminants above EPA MCLGs. Consider using a certified water filter for additional protection.
No single water system serves most of Choctaw (12,358 residents, Census 2024 estimate). Its large systems are CHOCTAW (EPA counts 3,926 people served, about 32% of Choctaw's population); MIDWEST CITY (EPA counts 55,935 people served, more than Choctaw's population). EPA's counts may include people served outside Choctaw, so each share is at most that. Check which one bills you: each system's figures are shown separately below.
- CHOCTAW: 162 contaminants tested, 3 above EPA MCLGs; health-based violations since 2020: 0
- MIDWEST CITY: 151 contaminants tested, 4 above EPA MCLGs; health-based violations since 2020: 0
Other systems listed for Choctaw with results above guidelines: MIDWEST CITY (4 above guidelines)
Water systems
2 large systems
Residents (Census 2024)
12,358
Health-based violations since 2020
0
CHOCTAW. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Aug 2022 ยท CHOCTAW
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is Choctaw Tap Water Safe to Drink?
We recommend using a certified water filter for additional protection, especially for vulnerable populations like children, pregnant women, and those with compromised immune systems. Choctaw's water has 3 contaminants above EPA health-based guidelines (MCLGs), while it meets federal legal limits.
CHOCTAW, Choctaw's water system, serves 3,926 people. 2 other systems are listed for Choctaw. Each system's results are listed under its own name, never added to CHOCTAW's. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for CHOCTAW is from Aug 2022.
In EPA's 2023โ2026 UCMR 5 testing, CHOCTAW measured lithium at up to 18.1 ยตg/L, which EPA counts as above its health reference level of 10 ยตg/L. That level is a screening value EPA uses to decide what to study further, not a legal limit, and this result does not change this page's water-quality summary.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in Oklahoma
Choctaw Water Service Areas

What these numbers actually mean for Choctaw, OK
We read Choctaw, OKโs published record and send you a short report โ which findings warrant a decision, which to ignore, and what to do about it. Including when the answer is nothing.
- 3 contaminants above EPA MCLGs and 7 contaminants with an EPA health goal detected in some samples (no level on file)
- 156 results on file
- 23 PFAS compounds on record
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Recommended Water Filters for Choctaw
Based on Choctaw's water quality data, these NSF-certified filters are recommended to remove contaminants above EPA MCLGs.

AquaTru
Classic
NSF Certified:
Flow Rate
0.04 gpm
Daily Production
600 gpd
Highlights:
- Best overall contaminant reduction score
- Most performance certifications
- Lifetime warranty
- NSF-42, NSF-53, NSF-58, NSF-401 certified
Removes 23 contaminants:
+18 more
Molybdenum, Barium, Chlorine, Arsenic, 83+ contaminants, Calcium, Chloride, Copper, Magnesium, Nitrate, Phosphorus, Sodium, Sulfate, Total Dissolved Solids, Zinc, Total THMs, Chloroform, Nitrate (as N)

AquaTru
Carafe
NSF Certified:
Flow Rate
0.3 gpm
Daily Production
4 gpd
Highlights:
- Verified PFAS reduction
- Glass collection vessel
- Plug-and-play installation
- NSF-53, NSF-42, NSF-58, NSF-401, NSF-372 certified
Removes 17 contaminants:
+12 more
Arsenic, 83+ contaminants, Copper, Total THMs, Chloroform, Chloride, Sulfate, Nitrate (as N), Molybdenum, Barium, Strontium, Uranium

Waterdrop
A1
NSF Certified:
Flow Rate
0.042 gpm
Daily Production
130 gpd
Highlights:
- Built-in UV sterilization
- Easy maintenance with filter change reminders
- NSF-58 certified
- Hot and cold water dispensing
Removes 12 contaminants:
+7 more
Molybdenum, Sulfate, Strontium, Phosphorus, Chlorine, Barium, Nitrate

Solventum Purification Inc.
3MRO401
NSF Certified:
Daily Production
11.48 gpd
Highlights:
- NSF-58 certified reverse osmosis system
- 11.48 GPD production capacity
- Reduces total dissolved solids (TDS) for purer water
Removes 15 contaminants:
+10 more
Copper, Cryptosporidium, Fluoride, Lead, Radium 226, Radium 228, Radium, combined (-226 & -228), Selenium, Total Dissolved Solids, Turbidity
Verify Your Water Quality with Independent Testing
With 3 contaminants above EPA MCLGs and 7 contaminants with an EPA health goal detected in some samples (no level on file), independent laboratory testing provides a second opinion and can track changes over time.

SimpleLab
Advanced Home Water Test
$269
Comprehensive water analysis testing over 200 contaminants including bacteria, heavy metals, and chemical compounds.

Tap Score
Advanced Microplastics Test
$829
Cutting-edge testing for microplastics particles in drinking water using advanced laboratory techniques.

Tap Score
Haloacetic Acids (HAA9) Test
$275
Tests for disinfection byproducts formed when chlorine reacts with organic matter in water treatment.
With 3 contaminants above health guidelines, you may want to explore water purification options. Learn how to make distilled water at home for applications like humidifiers, CPAP machines, and baby formula.
What Choctaw's water readings can explain
We publish a city-level hardness figure for Choctaw, resolved from its water systems where they report one and estimated from county sampling where they do not. Each page starts with the hot-tap and cold-tap check, then shows what your own water system reported.
On a private well near Choctaw? Public-water results do not apply to private wells. See Oklahoma County well water testing and USGS risk data โ modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in Choctaw
Choctaw's tap water has an estimated 12.9 grains per gallon (221.0 mg/L, county sampling in Oklahoma County) โ very hard on the USGS scale, the range where scale on fixtures and appliances is the usual complaint.
Water softener cost for an estimated 12.9 gpg water in Choctaw โ equipment and local installation labour for your ZIP code, with the sizing arithmetic shown in full. For the national picture first, read what a water softener costs โ equipment, installation labour and ten-year ownership, each separated out. For Oklahoma as a whole, read water softener cost in Oklahoma โ priced against the plumber wage published for the state.
Frequently Asked Questions About Choctaw Tap Water
Choctaw's water has 3 contaminants above EPA MCLGs. While the water meets federal legal limits, we recommend using a certified water filter for additional protection, especially for vulnerable populations like children, pregnant women, and those with compromised immune systems.
Spotted something off on this page?
Residents keep our data honest.
This form corrects our data; it does not reach CHOCTAW. For a problem with your water now (discolored water, no water, low pressure, a leak), contact CHOCTAW directly.
Check another location
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