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Calumet City, IL

EPA monitoring detected 15 contaminants across the 2 water suppliers serving Calumet City. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

2
water suppliers
37,677
people served
15
contaminants found
Illinois rankings Lead in Illinois PFAS in Illinois

What was found in Calumet City's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Copper
844.55 µg/L 65%
of the EPA limit 1300 µg/L
Main supplier: CALUMET CITY · 37,000 people · 2018
1/2 SYR4
Lead
57.85 µg/L 386%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: CALUMET CITY · 37,000 people · 2018
1/2 SYR4
TTHM
29.08 µg/L 36%
of the EPA limit 80 µg/L
Main supplier: CALUMET CITY · 37,000 people · 2019
1/2 SYR4
Chloroform
13.4 µg/L
No EPA limit set
Main supplier: CALUMET CITY · 37,000 people · 2019
1/2 SYR4
Bromodichloromethane
10.9 µg/L
No EPA limit set
Main supplier: CALUMET CITY · 37,000 people · 2019
1/2 SYR4
Total Haloacetic Acids (HAA5)
10.089 µg/L 17%
of the EPA limit 60 µg/L
Main supplier: CALUMET CITY · 37,000 people · 2019
1/2 SYR4
Dibromochloromethane
6.1 µg/L
No EPA limit set
Main supplier: CALUMET CITY · 37,000 people · 2019
1/2 SYR4
Dichloroacetic Acid
4.778 µg/L
No EPA limit set
Main supplier: CALUMET CITY · 37,000 people · 2019
1/2 SYR4
Trichloroacetic Acid
4.306 µg/L
No EPA limit set
Main supplier: CALUMET CITY · 37,000 people · 2019
1/2 SYR4
Monochloroacetic Acid
3.389 µg/L
No EPA limit set
Main supplier: CALUMET CITY · 37,000 people · 2019
1/2 SYR4
Dibromoacetic Acid
2.345 µg/L
No EPA limit set
Main supplier: CALUMET CITY · 37,000 people · 2019
1/2 SYR4
Monobromoacetic Acid
1.482 µg/L
No EPA limit set
Main supplier: CALUMET CITY · 37,000 people · 2019
1/2 SYR4
Lead
0.0124 mg/L 83%
of the EPA limit 0.0150 mg/L
Main supplier: CALUMET CITY · 37,000 people · 2026
2/2 LCR
Pfpea
0.0032 µg/L
No EPA limit set
Main supplier: CALUMET CITY · 37,000 people · 2024
1/2 UCMR-5
Pfhxa
0.0030 µg/L
No EPA limit set
Main supplier: CALUMET CITY · 37,000 people · 2024
1/2 UCMR-5
Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Calumet City

SupplierPopulation served
CALUMET CITY 37,000
RIVER OAKS ESTATES MHP 677

Frequently asked questions about Calumet City tap water

Is Calumet City tap water safe to drink?

EPA testing detected 15 contaminants in the water serving Calumet City. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Calumet City?

2 public water suppliers report drinking-water monitoring for Calumet City, Illinois to the EPA. Each is listed above with its population served.

What contaminants are in Calumet City's water?

The contaminants EPA monitoring detected in Calumet City include Copper, Lead, TTHM, Chloroform, Bromodichloromethane. The full list, with the level at the main supplier and the data source, is in the table above.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.