Water Quality Report · Updated October 07, 2026
WHEATON
WHEATON delivers tap water graded B (75/100) by TapWaterSafety.org. The utility serves approximately 53,970 residents in WHEATON, Illinois using surface water (purchased). The most significant water quality concerns are: Haloacetic acids (HAA9) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline; Bromodichloromethane significantly above health guideline. For questions, the utility can be reached at 630-260-2090.
Is WHEATON tap water safe to drink?
WHEATON delivers tap water that earns a grade of B (75/100) from TapWaterSafety.org — a good rating, with only minor concerns relative to health-based guidelines.
The utility serves 53,970 residents in WHEATON, drawing from surface water (purchased).
Public testing data identifies 10 contaminants in this water above EWG's health-based guidelines, including: Haloacetic acids (HAA9), Total trihalomethanes (TTHMs), Bromodichloromethane, Haloacetic acids (HAA5), Trichloroacetic acid, Dibromochloromethane, Chloroform, Dibromoacetic acid, Dichloroacetic acid, Chromium (hexavalent). 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.
EPA compliance record
Official U.S. EPA records for WHEATON (system ID IL0431050) for the last 3 years. Checked 2026-10-07.
| Rule | Type | Since | Status |
|---|---|---|---|
| Stage 2 Disinfectants and Disinfection Byproducts Rule | Missed testing or reporting | 10/01/2023 | Open |
Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.
Quick actions for WHEATON residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for WHEATON.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 26.5 ppb, 441x above the EWG health guideline of 0.06 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 35.8 ppb, 238x above the EWG health guideline of 0.15 ppb.
Bromodichloromethane significantly above health guideline
Moderate concernBromodichloromethane detected at 10.6 ppb, 177x above the EWG health guideline of 0.06 ppb.
Contact WHEATON
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 WHEATON
Filters matched to the specific contaminants in this water supply.
Carbon filter certified for VOCs (NSF/ANSI 53)
$180-$599Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.
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 75/100 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 |
|---|---|---|---|---|---|---|---|---|
| Haloacetic acids (HAA9) Disinfection byproduct |
26.5 ppb | 0.06 | — | — | — | — | — | 441× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
35.8 ppb | 0.15 | 80.0 | 100 | — | — | — | 238× over |
| Bromodichloromethane Disinfection byproduct |
10.6 ppb | 0.06 | — | — | — | — | — | 177× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
15.6 ppb | 0.1 | 60.0 | 60 | — | — | — | 156× over |
| Trichloroacetic acid Disinfection byproduct |
6.3 ppb | 0.1 | — | — | — | — | — | 63× over |
| Dibromochloromethane Disinfection byproduct |
5.62 ppb | 0.1 | — | — | — | — | — | 56× over |
| Chloroform Disinfection byproduct |
19.5 ppb | 0.4 | — | — | — | — | — | 49× over |
| Dibromoacetic acid Disinfection byproduct |
1.16 ppb | 0.03 | — | — | — | — | — | 39× over |
| Dichloroacetic acid Disinfection byproduct |
7.74 ppb | 0.2 | — | — | — | — | — | 39× over |
| Chromium (hexavalent) Heavy metal |
0.201 ppb | 0.02 | — | — | — | — | — | 10× over |
| Molybdenum Other |
0.963 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Vanadium Other |
0.313 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Monobromoacetic acid Disinfection byproduct |
0.193 ppb | 25.0 | — | — | — | — | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
0.228 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.115 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| 4-Androstene-3,17-dione Other |
0.25 ppt | — | — | — | — | — | — | Below guideline |
| Testosterone Other |
0.125 ppt | — | — | — | — | — | — | 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.
WHEATON service area
This water system serves 1 community in DuPage County, Illinois. Click any city for its dedicated tap water quality page.
Find the right filter for WHEATON water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.