Tap Water Quality Report
Tap water quality in EDMOND, Oklahoma
Tap water in EDMOND, Oklahoma receives a grade of F (51/100) from TapWaterSafety.org. It's served by EDMOND PWA. The most significant water quality concerns are: PFAS contamination; Arsenic significantly above health guideline; Perfluorohexane sulfonate (PFHXS) significantly above health guideline; Chromium (hexavalent) significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in EDMOND's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving EDMOND.
PFAS contamination
Severe concernPerfluorooctane sulfonate (PFOS) detected. PFAS are persistent chemicals linked to cancer and immune effects with no known safe exposure threshold.
Arsenic significantly above health guideline
Moderate concernArsenic detected at 4.21 ppb, 1052x above the EWG health guideline of 0.004 ppb.
Perfluorohexane sulfonate (PFHXS) significantly above health guideline
Moderate concernPerfluorohexane sulfonate (PFHXS) detected at 0.653 ppt, 653x above the EWG health guideline of 0.001 ppt.
Chromium (hexavalent) significantly above health guideline
Moderate concernChromium (hexavalent) detected at 9.06 ppb, 453x above the EWG health guideline of 0.02 ppb.
Recommended filters for EDMOND
Filters matched to the specific contaminants in EDMOND's water supply.
Reverse Osmosis or NSF P473 certified carbon
$80-$750Activated carbon and RO are the only technologies proven to remove PFAS at certified levels.
Reverse Osmosis
$249-$750Arsenic is most effectively removed by reverse osmosis. Some specialized adsorptive filters also work.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
All contaminants detected in EDMOND's tap water
Every contaminant identified, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal. Why we show multiple standards →
| Contaminant | Detected | EWG US health-based |
EPA US legal |
EU DWD Europe |
WHO global |
CA PHG strictest US |
Tested sample year |
Status |
|---|---|---|---|---|---|---|---|---|
| Arsenic Heavy metal |
4.21 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 1052× over |
| Perfluorohexane sulfonate (PFHXS) PFAS |
0.653 ppt | 0.001 | 10.0 | — | — | — | — | 653× over |
| Chromium (hexavalent) Heavy metal |
9.06 ppb | 0.02 | — | — | — | — | — | 453× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
18.5 ppb | 0.06 | — | — | — | — | — | 309× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
45.8 ppb | 0.15 | 80.0 | 100 | — | — | — | 305× over |
| Bromodichloromethane Disinfection byproduct |
13.3 ppb | 0.06 | — | — | — | — | — | 222× over |
| Dibromochloromethane Disinfection byproduct |
17.2 ppb | 0.1 | — | — | — | — | — | 172× over |
| Dibromoacetic acid Disinfection byproduct |
4.0 ppb | 0.03 | — | — | — | — | — | 133× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
5.92 ppb | 0.1 | 60.0 | 60 | — | — | — | 59× over |
| Radium, combined (-226 and -228) Radiological |
1.45 pCi/L | 0.05 | 5.0 | — | — | — | — | 29× over |
| Chloroform Disinfection byproduct |
7.31 ppb | 0.4 | — | — | — | — | — | 18× over |
| Bromoform Disinfection byproduct |
7.54 ppb | 0.5 | — | — | — | — | — | 15× over |
| Dichloroacetic acid Disinfection byproduct |
1.81 ppb | 0.2 | — | — | — | — | — | 9.0× over |
| Uranium Radiological |
3.74 pCi/L | 0.43 | 20.0 | 30 | 30 | 0.43 | — | 8.7× over |
| Nitrate Inorganic |
0.839 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 6.0× over |
| Nitrate and nitrite Inorganic |
0.689 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 4.9× over |
| Perfluorooctane sulfonate (PFOS) PFAS |
0.595 ppt | 0.3 | 4.0 | 100 | 100 | 1 | — | 2.0× over |
| Selenium Heavy metal |
43.1 ppb | 30.0 | 50.0 | 20 | 40 | 30 | — | Fails EU |
| Trichloroacetic acid Disinfection byproduct |
0.114 ppb | 0.1 | — | — | — | — | — | 1.1× over |
| Vanadium Other |
23.5 ppb | 21.0 | — | — | — | — | — | 1.1× over |
| Chlorate Disinfection byproduct |
101.7 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Barium Heavy metal |
193.0 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Simazine Pesticide/Herbicide |
0.00621 ppb | 0.1 | 4.0 | — | — | — | — | Below guideline |
| Bromochloromethane Other |
0.00236 ppb | 0.06 | — | — | — | — | — | Below guideline |
| Dichloromethane (methylene chloride) Volatile organic compound |
0.0893 ppb | 4.0 | 5.0 | — | — | — | — | Below guideline |
| Di(2-ethylhexyl) phthalate Semi-volatile organic compound |
0.0396 ppb | 3.0 | 6.0 | — | — | — | — | Below guideline |
| Molybdenum Other |
0.456 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
0.483 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
0.579 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluoropentanoic Acid (PFPeA) PFAS |
0.468 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.593 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Perfluorobutane sulfonate (PFBS) PFAS |
0.474 ppt | 2000.0 | — | — | — | — | — | Below guideline |
| Chlorodifluoromethane Other |
0.00198 ppb | — | — | — | — | — | — | Below guideline |
| Chromium (total) Heavy metal |
27.5 ppb | — | 100.0 | — | — | — | — | Below guideline |
| Cyanide Inorganic |
2.08 ppb | — | 200.0 | 50 | 70 | 150 | — | Below guideline |
| Lithium Other |
11.7 ppb | — | — | — | — | — | — | Below guideline |
All values in the unit of the detected level. Red cells indicate the detected level exceeds that standard. Some contaminants have limits in some jurisdictions but not others (shown as —). The "Tested" column shows the year each contaminant sample was collected.
Sources: US EPA, EU Drinking Water Directive 2020/2184, WHO Guidelines, California OEHHA PHGs, EWG Tap Water Database.
Treatment plant contact info
For service issues, water quality concerns, or to request a Consumer Confidence Report from EDMOND PWA.