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Tap Water Quality Report

Tap water quality in KANKAKEE, Illinois

Served by AQUA ILLINOIS-KANKAKEE. 80,000 residents.

Average score 58/100
Utilities 1
Population 80,000
Quick answer

Tap water in KANKAKEE, Illinois receives a grade of F (58/100) from TapWaterSafety.org. It's served by AQUA ILLINOIS-KANKAKEE. The most significant water quality concerns are: Haloacetic acids (HAA9) significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.

Data sources for this grade: utilities.csv EWG Tap Water Database ⓘ How did we get this rating?

What's in KANKAKEE's tap water

Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving KANKAKEE.

Haloacetic acids (HAA9) significantly above health guideline

Moderate concern

Haloacetic acids (HAA9) detected at 31.7 ppb, 528x above the EWG health guideline of 0.06 ppb.

Haloacetic acids (HAA5) significantly above health guideline

Moderate concern

Haloacetic acids (HAA5) detected at 33.3 ppb, 333x above the EWG health guideline of 0.1 ppb.

Total trihalomethanes (TTHMs) significantly above health guideline

Moderate concern

Total trihalomethanes (TTHMs) detected at 44.4 ppb, 296x above the EWG health guideline of 0.15 ppb.

EPA compliance record

Official U.S. EPA records for AQUA ILLINOIS-KANKAKEE (system ID IL0915030) for the last 3 years. Checked 2026-10-07.

Health-based violation in the last 3 years. A contaminant was above the legal limit or required treatment was not met in at least one quarter.
4 of 12quarters with a violation
Nolead above EPA action level
02/11/2025last state inspection
RuleTypeSinceStatus
Lead and Copper Rule Missed testing or reporting 07/01/2025 Open
Stage 2 Disinfectants and Disinfection Byproducts Rule Missed testing or reporting 07/01/2024 Open
Interim and Long Term 1 Enhanced Surface Water Treatment Rule Required treatment not met 01/01/2024 Open
Stage 1 Disinfectants and Disinfection Byproducts Rule Missed testing or reporting 08/01/2025 Open
Revised Total Coliform Rule Missed testing 08/01/2025 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 KANKAKEE

Filters matched to the specific contaminants in KANKAKEE's water supply.

Carbon filter certified for VOCs (NSF/ANSI 53)

$180-$599

Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.

Aquasana AQ-5300 Under-Sink Filter
$180-$240 NSF 42, 53, 401, 372
Editorial pick · affiliate link coming soon
AquaTru Countertop Reverse Osmosis
$449-$599 NSF 42, 53, 58, 401, 372
Editorial pick · affiliate link coming soon
Aquasana OptimH2O Reverse Osmosis + Claryum
$429-$549 NSF 42, 53, 58, 401
Editorial pick · affiliate link coming soon

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 KANKAKEE'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
31.7 ppb 0.06 — — — — — 528× over
Haloacetic acids (HAA5)
Disinfection byproduct
33.3 ppb 0.1 60.0 60 — — — 333× over
Total trihalomethanes (TTHMs)
Disinfection byproduct
44.4 ppb 0.15 80.0 100 — — — 296× over
Bromodichloromethane
Disinfection byproduct
9.43 ppb 0.06 — — — — — 157× over
Trichloroacetic acid
Disinfection byproduct
9.99 ppb 0.1 — — — — — 100× over
Chromium (hexavalent)
Heavy metal
1.9 ppb 0.02 — — — — — 95× over
Dichloroacetic acid
Disinfection byproduct
18.3 ppb 0.2 — — — — — 91× over
Chloroform
Disinfection byproduct
32.4 ppb 0.4 — — — — — 81× over
Dibromochloromethane
Disinfection byproduct
2.55 ppb 0.1 — — — — — 25× over
Nitrate
Inorganic
3.47 ppm 0.14 10.0 11.3 11.3 10 — 25× over
Nitrate and nitrite
Inorganic
2.9 ppm 0.14 10.0 11.3 11.3 10 — 21× over
Radium, combined (-226 and -228)
Radiological
0.55 pCi/L 0.05 5.0 — — — — 11× over
Dibromoacetic acid
Disinfection byproduct
0.301 ppb 0.03 — — — — — 10× over
1,4-Dioxane
Semi-volatile organic compound
0.27 ppb 0.35 — — 50 1 — Below guideline
Monobromoacetic acid
Disinfection byproduct
4.22 ppb 25.0 — — — — — Below guideline
Manganese
Heavy metal
11.4 ppb 100.0 — 50 80 — — Below guideline
Molybdenum
Other
4.51 ppb 40.0 — — — — — Below guideline
Chloromethane
Other
0.275 ppb 2.69 — — — — — Below guideline
2,4-D
Pesticide/Herbicide
1.0 ppb 20.0 70.0 — — — — Below guideline
Selenium
Heavy metal
0.733 ppb 30.0 50.0 20 40 30 — Below guideline
Barium
Heavy metal
15.7 ppb 700.0 2000.0 — 1300 2000 — Below guideline
Vanadium
Other
0.346 ppb 21.0 — — — — — Below guideline
Monochloroacetic acid
Disinfection byproduct
0.487 ppb 53.0 — — — — — Below guideline
Perfluorohexanoic Acid (PFHxA)
PFAS
1.08 ppt 1000.0 — — — — — Below guideline
Perfluorobutane sulfonate (PFBS)
PFAS
0.54 ppt 2000.0 — — — — — Below guideline
Strontium
Radiological
0.09 ppb 1500.0 — — — — — Below guideline
Fluoride
Inorganic
0.675 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, 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 AQUA ILLINOIS-KANKAKEE.

Treatment Plant

FacilityTP 01-SURFACE WATER TREATMENT PLANT

ZIP codes served

KANKAKEE's public water systems serve the following ZIP codes: