Tap Water Quality Report
Tap water quality in PEORIA, Illinois
Tap water in PEORIA, Illinois receives a grade of F (55/100) from TapWaterSafety.org. It's served by IL AMERICAN-PEORIA. The most significant water quality concerns are: PFAS contamination; Perfluorohexane sulfonate (PFHXS) significantly above health guideline; Haloacetic acids (HAA9) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline; Arsenic detected. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in PEORIA's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving PEORIA.
PFAS contamination
Severe concernPerfluorooctane sulfonate (PFOS), Perfluorooctanoic acid (PFOA) detected. PFAS are persistent chemicals linked to cancer and immune effects with no known safe exposure threshold.
Perfluorohexane sulfonate (PFHXS) significantly above health guideline
Moderate concernPerfluorohexane sulfonate (PFHXS) detected at 2.15 ppt, 2149x above the EWG health guideline of 0.001 ppt.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 15.7 ppb, 261x above the EWG health guideline of 0.06 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 34.2 ppb, 228x above the EWG health guideline of 0.15 ppb.
Arsenic detected
Moderate concernArsenic detected at 0.625 ppb.
Recommended filters for PEORIA
Filters matched to the specific contaminants in PEORIA'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.
Carbon block (NSF/ANSI 42 + 53)
$40-$750Activated carbon is highly effective for disinfection byproducts like TTHM and HAA5.
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 PEORIA'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 |
|---|---|---|---|---|---|---|---|---|
| Perfluorohexane sulfonate (PFHXS) PFAS |
2.15 ppt | 0.001 | 10.0 | — | — | — | — | 2149× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
15.7 ppb | 0.06 | — | — | — | — | — | 261× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
34.2 ppb | 0.15 | 80.0 | 100 | — | — | — | 228× over |
| Bromodichloromethane Disinfection byproduct |
11.9 ppb | 0.06 | — | — | — | — | — | 198× over |
| Arsenic Heavy metal |
0.625 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 156× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
14.6 ppb | 0.1 | 60.0 | 60 | — | — | — | 146× over |
| Trichloroacetic acid Disinfection byproduct |
5.33 ppb | 0.1 | — | — | — | — | — | 53× over |
| Dibromochloromethane Disinfection byproduct |
4.78 ppb | 0.1 | — | — | — | — | — | 48× over |
| Chloroform Disinfection byproduct |
17.5 ppb | 0.4 | — | — | — | — | — | 44× over |
| Dibromoacetic acid Disinfection byproduct |
1.21 ppb | 0.03 | — | — | — | — | — | 40× over |
| Dichloroacetic acid Disinfection byproduct |
8.06 ppb | 0.2 | — | — | — | — | — | 40× over |
| Nitrate Inorganic |
3.25 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 23× over |
| Nitrate and nitrite Inorganic |
3.26 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 23× over |
| Perfluorooctanoic acid (PFOA) PFAS |
1.85 ppt | 0.09 | 4.0 | 100 | 100 | 0.007 | — | 21× over |
| Perfluorooctane sulfonate (PFOS) PFAS |
2.69 ppt | 0.3 | 4.0 | 100 | 100 | 1 | — | 9.0× over |
| Chromium (hexavalent) Heavy metal |
0.133 ppb | 0.02 | — | — | — | — | — | 6.7× over |
| Radium, combined (-226 and -228) Radiological |
0.31 pCi/L | 0.05 | 5.0 | — | — | — | — | 6.2× over |
| 1,4-Dioxane Semi-volatile organic compound |
0.756 ppb | 0.35 | — | — | 50 | 1 | — | 2.2× over |
| Atrazine Pesticide/Herbicide |
0.0778 ppb | 0.1 | 3.0 | 0.1 | 100 | 0.15 | — | Below guideline |
| Chlorate Disinfection byproduct |
106.3 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Barium Heavy metal |
200.0 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Bromochloromethane Other |
0.00583 ppb | 0.06 | — | — | — | — | — | Below guideline |
| Molybdenum Other |
3.61 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Bromoform Disinfection byproduct |
0.0229 ppb | 0.5 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
2.34 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Vanadium Other |
0.474 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Selenium Heavy metal |
0.25 ppb | 30.0 | 50.0 | 20 | 40 | 30 | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
3.05 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutanoic Acid (PFBA) PFAS |
2.48 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Aluminum Heavy metal |
1.25 ppb | 600.0 | — | 200 | — | 600 | — | Below guideline |
| Perfluoropentanoic Acid (PFPeA) PFAS |
1.78 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutane sulfonate (PFBS) PFAS |
2.84 ppt | 2000.0 | — | — | — | — | — | Below guideline |
| 1,1-Dichloroethane Volatile organic compound |
0.0025 ppb | 3.0 | — | — | — | — | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
0.0219 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Perfluoroheptanoic acid (PFHPA) PFAS |
0.326 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.26 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Chlorodifluoromethane Other |
0.358 ppb | — | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.674 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Germanium Other |
0.074 ppb | — | — | — | — | — | — | Below guideline |
| Lithium Other |
13.9 ppb | — | — | — | — | — | — | Below guideline |
| Nitrite Inorganic |
0.00333 ppm | — | 1.0 | — | — | — | — | 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 IL AMERICAN-PEORIA.