Tap WaterIndex

← Illinois

Tap water quality report

Champaign, IL

EPA monitoring detected 19 contaminants across the 2 water suppliers serving Champaign. 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
150,680
people served
19
contaminants found
Illinois rankings Lead in Illinois PFAS in Illinois

What was found in Champaign'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
Fluoride
975.5 µg/L 24%
of the EPA limit 4000 µg/L
Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2018
1/2 SYR4
Copper
396.45 µg/L 30%
of the EPA limit 1300 µg/L
Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2019
2/2 SYR4
TTHM
76.92 µg/L 96%
of the EPA limit 80 µg/L
Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2019
2/2 SYR4
Chloroform
62.16 µg/L
No EPA limit set
Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2019
2/2 SYR4
Nitrate
30 µg/L 0.3%
of the EPA limit 10000 µg/L
Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2019
1/2 SYR4
Nitrate-Nitrite
30 µg/L 0.3%
of the EPA limit 10000 µg/L
Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2018
1/2 SYR4
Total Haloacetic Acids (HAA5)
29.48 µg/L 49%
of the EPA limit 60 µg/L
Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2019
2/2 SYR4
Dichloroacetic Acid
20.36 µg/L
No EPA limit set
Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2019
2/2 SYR4
Lithium
14.1 µg/L
No EPA limit set
Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2024
1/2 UCMR-5
Bromodichloromethane
11.16 µg/L
No EPA limit set
Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2019
2/2 SYR4
Trichloroacetic Acid
8.86 µg/L
No EPA limit set
Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2019
2/2 SYR4
Monochloroacetic Acid
4.09 µg/L
No EPA limit set
Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2019
1/2 SYR4
Dibromochloromethane
3.86 µg/L
No EPA limit set
Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2019
2/2 SYR4
Dibromoacetic Acid
3.52 µg/L
No EPA limit set
Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2019
1/2 SYR4
Lead
3 µg/L 20%
of the EPA limit 15 µg/L
Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2019
1/2 SYR4
Monobromoacetic Acid
2.7 µg/L
No EPA limit set
Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2019
1/2 SYR4
Arsenic
2 µg/L 20%
of the EPA limit 10 µg/L
Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2018
1/2 SYR4
Combined Radium (-226 And -228)
1.7712 pCi/L 35%
of the EPA limit 5 pCi/L
Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2018
1/2 SYR4
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2026
2/2 LCR
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 Champaign

SupplierPopulation served
IL AMERICAN-CHAMPAIGN 150,000
SHADOW WOOD MHP 680

Frequently asked questions about Champaign tap water

Is Champaign tap water safe to drink?

EPA testing detected 19 contaminants in the water serving Champaign. 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 Champaign?

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

What contaminants are in Champaign's water?

The contaminants EPA monitoring detected in Champaign include Fluoride, Copper, TTHM, Chloroform, Nitrate. 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.