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Tap water quality report

Chatham, IL

EPA monitoring detected 14 contaminants across the 1 water supplier serving Chatham. 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.

1
water supplier
16,423
people served
14
contaminants found
Illinois rankings Lead in Illinois PFAS in Illinois

What was found in Chatham'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
853 µg/L 66%
of the EPA limit 1300 µg/L
Main supplier: CHATHAM · 16,423 people · 2019
1/1 SYR4
TTHM
60.65999999999998 µg/L 76%
of the EPA limit 80 µg/L
Main supplier: CHATHAM · 16,423 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
32.129999999999995 µg/L 54%
of the EPA limit 60 µg/L
Main supplier: CHATHAM · 16,423 people · 2019
1/1 SYR4
Chloroform
30.47999999999999 µg/L
No EPA limit set
Main supplier: CHATHAM · 16,423 people · 2019
1/1 SYR4
Dichloroacetic Acid
22.075 µg/L
No EPA limit set
Main supplier: CHATHAM · 16,423 people · 2019
1/1 SYR4
Bromodichloromethane
18.339999999999996 µg/L
No EPA limit set
Main supplier: CHATHAM · 16,423 people · 2019
1/1 SYR4
Lead
12.799999999999983 µg/L 85%
of the EPA limit 15 µg/L
Main supplier: CHATHAM · 16,423 people · 2019
1/1 SYR4
Dibromochloromethane
12.344999999999995 µg/L
No EPA limit set
Main supplier: CHATHAM · 16,423 people · 2019
1/1 SYR4
Monochloroacetic Acid
9.228499999999999 µg/L
No EPA limit set
Main supplier: CHATHAM · 16,423 people · 2019
1/1 SYR4
Trichloroacetic Acid
5.9799999999999995 µg/L
No EPA limit set
Main supplier: CHATHAM · 16,423 people · 2019
1/1 SYR4
Dibromoacetic Acid
3.6359999999999992 µg/L
No EPA limit set
Main supplier: CHATHAM · 16,423 people · 2019
1/1 SYR4
Bromoform
2.9699999999999998 µg/L
No EPA limit set
Main supplier: CHATHAM · 16,423 people · 2019
1/1 SYR4
Monobromoacetic Acid
1.9049999999999998 µg/L
No EPA limit set
Main supplier: CHATHAM · 16,423 people · 2019
1/1 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: CHATHAM · 16,423 people · 2027
1/1 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 Chatham

SupplierPopulation served
CHATHAM 16,423

Frequently asked questions about Chatham tap water

Is Chatham tap water safe to drink?

EPA testing detected 14 contaminants in the water serving Chatham. 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 Chatham?

1 public water supplier report drinking-water monitoring for Chatham, Illinois to the EPA. Each is listed above with its population served.

What contaminants are in Chatham's water?

The contaminants EPA monitoring detected in Chatham include Copper, TTHM, Total Haloacetic Acids (HAA5), Chloroform, Dichloroacetic Acid. 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.