Drinking water quality · 2024
· Verified
What's in Edmond, OK tap water
24 contaminants were measured in the Edmond, OK water system's 2024 annual report. Each is shown below against its federal limit.
- Reporting year
- 2024
- Contaminants measured
- 24
- Over federal limit
- 0
- Approaching the limit
- 2
- Service area
- OK
PFAS — EPA UCMR5 (2023–2025)
1 PFAS compound above EPA limits in Edmond, OK
The EPA finalized the first-ever federal drinking-water limits for six PFAS compounds in April 2024. These numbers come straight from EPA's UCMR5 lab dataset — every U.S. system serving more than 3,300 people tested every PFAS sample at an entry point to its distribution system. PFAS not listed below were either tested and not detected, or not yet sampled.
PFOS (Perfluorooctane sulfonic acid)
● Over EPA limit (1.6×)PFHxS (Perfluorohexane sulfonic acid)
● Below limitPFPeA
● Detected (no federal limit)PFBS
● Detected (no federal limit)PFHxA
● Detected (no federal limit)PFBA
● Detected (no federal limit)Where your water comes from · EPA SDWIS
Edmond, OK's drinking water comes from ground water, drawn from 60 sources.
Source
- WELL · 58
- LAKE ARCADIA
- PLANT WELL
Treatment
- CL2 STATION WELL 60
- CL2 STATION WELL 61
- EDMOND WTP
- + 28 more
Distribution
Also buys water from OKLAHOMA CITY.
Compliance history
Federal Safe Drinking Water Act violation & enforcement records (EPA SDWIS). A violation is a regulatory determination by the state or EPA — separate from the measured levels above.
- Maximum contaminant level exceededHealth-based9 violations on record · most recent Jan 2008resolved
- Treatment technique violationHealth-based1 violation on record · most recent Dec 1993resolved
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| UraniumA naturally occurring radioactive metal from erosion of natural deposits. | 28.8 ug/LHighest single sampleSystem-wide | 30 ug/LMCL | Approaching the limit |
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | 10.7 pCi/LHighest single sampleSystem-wide | 15 pCi/LMCL | Within the limit |
| Combined RadiumCombined radium-226 and radium-228 — naturally occurring radioactive elements. | 2.05 pCi/LHighest single sampleSystem-wide | 5 pCi/LMCL | Within the limit |
| Gross Beta Particle ActivityGross beta particle activity — a combined measure of beta-emitting radioactive substances. | 10.7 pCi/LHighest single sampleSystem-wide | None set | Detected — no federal limit |
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 72 ug/LRunning annual avgSystem-wide | None set | Approaching the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 11 ug/LRunning annual avgSystem-wide | None set | Within the limit |
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Dehp | 3.75 ug/LHighest single sampleSystem-wide | None set | Within the limit |
| Chromium | 32.4 ug/LHighest single sampleSystem-wide | None set | Within the limit |
| Nitrate Nitrite | 1.94 mg/LHighest single sampleSystem-wide | 10 mg/LMCL | Within the limit |
VOCs & pesticides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Dichloromethane | 1.43 ug/LHighest single sampleSystem-wide | None set | Within the limit |
| Simazine | 0.286 ug/LHighest single sampleSystem-wide | None set | Within the limit |
Inorganic chemicals
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| BariumA metal from erosion of natural deposits and industrial discharge. | 0.115–0.242 mg/LRangeSystem-wide | 2 mg/LMCL | Within the limit |
| SeleniumA trace element from natural deposits and industrial discharge. | 4.58 ug/LHighest single sampleSystem-wide | None set | Within the limit |
| CopperA metal that enters water from corroding household plumbing. | 0.0855 mg/L90th percentileAt the tap | 1.3 mg/LAction level | Within the limit |
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 0.0 mg/L90th percentileAt the tap | 0.015 mg/LAction level | None detected |
| LithiumA naturally occurring element found in some groundwater. | 11.67894737 ug/LAverageAverage of Detects | None set | Detected — no federal limit |
| SodiumA naturally occurring salt component. | 100 mg/LMaximumSystem-wide | None set | Detected — no federal limit |
People also ask about Edmond, OK's water
+Is Edmond, OK tap water safe to drink in 2024?
Every one of the 24 contaminants measured in Edmond, OK's 2024 Consumer Confidence Report is below its federal limit. "Safe" under the EPA's drinking-water standards is health-based, not aesthetic — but by those standards, no measured contaminant in this report exceeds its enforceable threshold. Individual health concerns (e.g. immunocompromised, infant, pregnancy) may warrant additional filtering regardless of compliance.
+What contaminants are in Edmond, OK tap water?
24 contaminants were measured in Edmond, OK's 2024 Consumer Confidence Report, spanning metals, pfas ("forever chemicals"), and radionuclides. 8 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Are any contaminants in Edmond, OK tap water approaching the federal limit?
2 contaminants are between 80% and 100% of the federal limit in this report: Uranium and TTHM. Approaching means measured but not in violation — a margin that can close quickly if conditions change.
+Where does the data on this page come from?
Every value is transcribed from Edmond, OK's 2024 Consumer Confidence Report — the annual drinking-water report every U.S. public water utility is required by federal law to publish. The original source document is archived and viewable on this site. A water-quality report covers an entire service area, not a single address.
+How often is Edmond, OK's water quality data updated?
Each U.S. public water utility publishes one Consumer Confidence Report per year, covering the prior calendar year's measurements. This page reflects the 2024 report; a new report will replace it once the utility publishes its next annual update.