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Tap water quality report

Galesburg, IL

EPA monitoring detected 26 contaminants across the 2 water suppliers serving Galesburg. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

2
water suppliers
31,805
people served
26
contaminants found
Illinois rankings Lead in Illinois PFAS in Illinois

What was found in Galesburg's water

The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Fluoride
1900 µg/L 48%
of the EPA limit 4000 µg/L
 1/2 SYR4
Copper
1400 µg/L 108%
of the EPA limit, in the worst sample — 1300 µg/L
 2/2 SYR4
Nitrate
340 µg/L 3.4%
of the EPA limit 10000 µg/L
 1/2 SYR4
Nitrate-Nitrite
330 µg/L 3.3%
of the EPA limit 10000 µg/L
 1/2 SYR4
TTHM
93.5 µg/L 117%
of the EPA limit, in the worst sample — 80 µg/L
 2/2 SYR4
Lead
81 µg/L 540%
of the EPA limit, in the worst sample — 15 µg/L
 2/2 SYR4
Chloroform
75.83 µg/L
No EPA limit set
 2/2 SYR4
Barium
75 µg/L 3.8%
of the EPA limit 2000 µg/L
 1/2 SYR4
Total Haloacetic Acids (HAA5)
53.4 µg/L 89%
of the EPA limit 60 µg/L
 2/2 SYR4
Trichloroacetic Acid
32.8 µg/L
No EPA limit set
 2/2 SYR4
Dichloroacetic Acid
29.2 µg/L
No EPA limit set
 2/2 SYR4
Bromodichloromethane
17.7 µg/L
No EPA limit set
 2/2 SYR4
Xylenes, Total
12 µg/L 0.1%
of the EPA limit 10000 µg/L
 1/2 SYR4
Combined Radium (-226 And -228)
9.04 pCi/L 181%
of the EPA limit, in the worst sample — 5 pCi/L
 1/2 SYR4
Dibromochloromethane
6.16 µg/L
No EPA limit set
 2/2 SYR4
Selenium
4.9 µg/L 9.8%
of the EPA limit 50 µg/L
 1/2 SYR4
Monobromoacetic Acid
3.3 µg/L
No EPA limit set
 2/2 SYR4
Arsenic
2.2 µg/L 22%
of the EPA limit 10 µg/L
 1/2 SYR4
Dibromoacetic Acid
2 µg/L
No EPA limit set
 2/2 SYR4
Ethylbenzene
1.5 µg/L 0.2%
of the EPA limit 700 µg/L
 1/2 SYR4
Pfba
0.0850 µg/L
No EPA limit set
 1/2 UCMR-5
Pfpea
0.0150 µg/L
No EPA limit set
 1/2 UCMR-5
PFOA
0.0140 µg/L
No EPA limit set
 1/2 UCMR-5
PFBS
0.0066 µg/L
No EPA limit set
 1/2 UCMR-5
PFOS
0.0042 µg/L
No EPA limit set
 1/2 UCMR-5
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 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 single worst sample on record — 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 Galesburg

SupplierPopulation served
GALESBURG 31,620
WINDWOOD WATER SYSTEM, INC. 185

Frequently asked questions about Galesburg tap water

Is Galesburg tap water safe to drink?

EPA testing detected 26 contaminants in the water serving Galesburg. 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 Galesburg?

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

What contaminants are in Galesburg's water?

The contaminants EPA monitoring detected in Galesburg include Fluoride, Copper, Nitrate, Nitrate-Nitrite, TTHM. The full list, with the highest level found 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.