Water Quality Report · Updated May 12, 2026
EDMOND PWA
EDMOND PWA delivers tap water graded F (51/100) by TapWaterSafety.org. The utility serves approximately 79,408 residents in EDMOND, Oklahoma using surface water. 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. For questions, the utility can be reached at 405-216-7696.
Is EDMOND tap water safe to drink?
EDMOND PWA delivers tap water that earns a grade of F (51/100) from TapWaterSafety.org — a poor rating, with significant contamination concerns and/or recent violations.
The utility serves 79,408 residents in EDMOND, drawing from surface water. Despite being legal under US EPA standards, this water would fail the European Union's Drinking Water Directive, primarily due to pfas contamination.
Public testing data identifies 20 contaminants in this water above EWG's health-based guidelines, including: Arsenic, Perfluorohexane sulfonate (PFHXS), Chromium (hexavalent), Haloacetic acids (HAA9), Total trihalomethanes (TTHMs), Bromodichloromethane, Dibromochloromethane, Dibromoacetic acid, Haloacetic acids (HAA5), Radium, combined (-226 and -228), Chloroform, Bromoform, Dichloroacetic acid, Uranium, Nitrate, Nitrate and nitrite, Perfluorooctane sulfonate (PFOS), Selenium, Trichloroacetic acid, Vanadium. For most residents, a properly certified home filter at the kitchen tap is the most cost-effective way to reduce exposure to whatever's in your water. See our filter recommendations below, matched specifically to this utility's contaminant profile.
Quick actions for EDMOND residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for EDMOND PWA.
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.
Contact EDMOND PWA
Reach the utility directly for service issues, water quality concerns, or to request your Consumer Confidence Report.
General Contact
Treatment Plant
Recommended water filters for EDMOND
Filters matched to the specific contaminants in this 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.
Score breakdown
This utility's overall score of 51/100 breaks down across five weighted components. Read the full methodology →
Contaminants detected — international standards comparison
Every contaminant detected, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal (the strictest US benchmark). 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 (4th ed.), California OEHHA PHGs, EWG Tap Water Database.
EDMOND PWA service area
This water system serves 1 community in Oklahoma County, Oklahoma. Click any city for its dedicated tap water quality page.
Find the right filter for EDMOND water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.