Tap Water Quality Report
Tap water quality in WHEATON, Illinois
Tap water in WHEATON, Illinois receives a grade of C (75/100) from TapWaterSafety.org. It's served by WHEATON. 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. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in WHEATON's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving 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.
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.
Recommended filters for WHEATON
Filters matched to the specific contaminants in WHEATON's 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.
All contaminants detected in WHEATON'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 |
|---|---|---|---|---|---|---|---|---|
| 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, 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 WHEATON.