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Tap water quality report

West Dundee, IL

EPA monitoring detected 19 contaminants across the 1 water supplier serving West Dundee. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

1
water supplier
7,845
people served
19
contaminants found
Illinois rankings Lead in Illinois PFAS in Illinois

What was found in West Dundee'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
Barium
16000 µg/L 800%
of the EPA limit, in the worst sample — 2000 µg/L
 1/1 SYR4
Fluoride
1140 µg/L 28%
of the EPA limit 4000 µg/L
 1/1 SYR4
Copper
348 µg/L 27%
of the EPA limit 1300 µg/L
 1/1 SYR4
TTHM
72.1 µg/L 90%
of the EPA limit 80 µg/L
 1/1 SYR4
Total Haloacetic Acids (HAA5)
63.9 µg/L 107%
of the EPA limit, in the worst sample — 60 µg/L
 1/1 SYR4
Chloroform
57.6 µg/L
No EPA limit set
 1/1 SYR4
Dichloroacetic Acid
36.6 µg/L
No EPA limit set
 1/1 SYR4
Trichloroacetic Acid
32.5 µg/L
No EPA limit set
 1/1 SYR4
Lead
30.1 µg/L 201%
of the EPA limit, in the worst sample — 15 µg/L
 1/1 SYR4
Combined Radium (-226 And -228)
18.7 pCi/L 374%
of the EPA limit, in the worst sample — 5 pCi/L
 1/1 SYR4
Bromodichloromethane
13.4 µg/L
No EPA limit set
 1/1 SYR4
Monochloroacetic Acid
5.87 µg/L
No EPA limit set
 1/1 SYR4
Dibromochloromethane
3.31 µg/L
No EPA limit set
 1/1 SYR4
Monobromoacetic Acid
3.17 µg/L
No EPA limit set
 1/1 SYR4
Dibromoacetic Acid
1.41 µg/L
No EPA limit set
 1/1 SYR4
Bromoform
1.04 µg/L
No EPA limit set
 1/1 SYR4
Dalapon
0.9980 µg/L 0.5%
of the EPA limit 200 µg/L
 1/1 SYR4
Mercury
0.1400 µg/L 7%
of the EPA limit 2 µg/L
 1/1 SYR4
Lead
0.0080 mg/L 53%
of the EPA limit 0.0150 mg/L
 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 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 West Dundee

SupplierPopulation served
WEST DUNDEE 7,845

Frequently asked questions about West Dundee tap water

Is West Dundee tap water safe to drink?

EPA testing detected 19 contaminants in the water serving West Dundee. 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 West Dundee?

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

What contaminants are in West Dundee's water?

The contaminants EPA monitoring detected in West Dundee include Barium, Fluoride, Copper, TTHM, Total Haloacetic Acids (HAA5). 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.