Water Quality Report · Updated May 12, 2026
SKOKIE
SKOKIE delivers tap water graded D (55/100) by TapWaterSafety.org. The utility serves approximately 66,422 residents in SKOKIE, Illinois using surface water (purchased). The most significant water quality concerns are: PFAS contamination; 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 847-933-8476.
Is SKOKIE tap water safe to drink?
SKOKIE delivers tap water that earns a grade of D (55/100) from TapWaterSafety.org — a below-average rating, with multiple concerns including pfas contamination.
The utility serves 66,422 residents in SKOKIE, drawing from surface water (purchased).
Public testing data identifies 15 contaminants in this water above EWG's health-based guidelines, including: Haloacetic acids (HAA9), Total trihalomethanes (TTHMs), Bromodichloromethane, Haloacetic acids (HAA5), Dibromochloromethane, Trichloroacetic acid, Chloroform, Dibromoacetic acid, Dichloroacetic acid, Perfluorooctanoic acid (PFOA)*, Radium, combined (-226 and -228)*, Chromium (hexavalent), Perfluorooctane sulfonate (PFOS)*, Nitrate*, Nitrate and nitrite*. 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 SKOKIE residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for SKOKIE.
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.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 18.9 ppb, 315x above the EWG health guideline of 0.06 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 29.4 ppb, 196x above the EWG health guideline of 0.15 ppb.
Bromodichloromethane significantly above health guideline
Moderate concernBromodichloromethane detected at 9.71 ppb, 162x above the EWG health guideline of 0.06 ppb.
Contact SKOKIE
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 SKOKIE
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.
Carbon block (NSF/ANSI 42 + 53)
$40-$750Activated carbon is highly effective for disinfection byproducts like TTHM and HAA5.
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 55/100 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 |
18.9 ppb | 0.06 | — | — | — | — | — | 315× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
29.4 ppb | 0.15 | 80.0 | 100 | — | — | — | 196× over |
| Bromodichloromethane Disinfection byproduct |
9.71 ppb | 0.06 | — | — | — | — | — | 162× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
11.6 ppb | 0.1 | 60.0 | 60 | — | — | — | 116× over |
| Dibromochloromethane Disinfection byproduct |
5.4 ppb | 0.1 | — | — | — | — | — | 54× over |
| Trichloroacetic acid Disinfection byproduct |
5.05 ppb | 0.1 | — | — | — | — | — | 50× over |
| Chloroform Disinfection byproduct |
14.3 ppb | 0.4 | — | — | — | — | — | 36× over |
| Dibromoacetic acid Disinfection byproduct |
1.02 ppb | 0.03 | — | — | — | — | — | 34× over |
| Dichloroacetic acid Disinfection byproduct |
5.31 ppb | 0.2 | — | — | — | — | — | 27× over |
| Perfluorooctanoic acid (PFOA)* PFAS |
1.97 ppt | 0.09 | 4.0 | 100 | 100 | 0.007 | — | 22× over |
| Radium, combined (-226 and -228)* Radiological |
1.02 pCi/L | 0.05 | 5.0 | — | — | — | — | 20× over |
| Chromium (hexavalent) Heavy metal |
0.193 ppb | 0.02 | — | — | — | — | — | 9.6× over |
| Perfluorooctane sulfonate (PFOS)* PFAS |
1.84 ppt | 0.3 | 4.0 | 100 | 100 | 1 | — | 6.1× over |
| Nitrate* Inorganic |
0.35 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 2.5× over |
| Nitrate and nitrite* Inorganic |
0.3 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 2.1× over |
| Bromoform* Disinfection byproduct |
0.382 ppb | 0.5 | — | — | — | — | — | Below guideline |
| 1,4-Dioxane Semi-volatile organic compound |
0.0175 ppb | 0.35 | — | — | 50 | 1 | — | Below guideline |
| Barium* Heavy metal |
21.0 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Molybdenum Other |
0.775 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
1.19 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Vanadium Other |
0.225 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Monobromoacetic acid Disinfection byproduct |
0.121 ppb | 25.0 | — | — | — | — | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
0.0635 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.119 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Fluoride* Inorganic |
0.664 ppm | — | 4.0 | 1.5 | 1.5 | — | — | 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.
SKOKIE service area
This water system serves 1 community in Cook County, Illinois. Click any city for its dedicated tap water quality page.
Find the right filter for SKOKIE water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.