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Tap water quality report

Wasco, IL

EPA monitoring detected 15 contaminants across the 1 water supplier serving Wasco. 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
4,000
people served
15
contaminants found
Illinois rankings Lead in Illinois PFAS in Illinois

What was found in Wasco'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
983.95 µg/L 25%
of the EPA limit 4000 µg/L
Main supplier: WASCO SD · 4,000 people · 2017
1/1 SYR4
Copper
287.4999999999999 µg/L 22%
of the EPA limit 1300 µg/L
Main supplier: WASCO SD · 4,000 people · 2018
1/1 SYR4
Barium
263 µg/L 13%
of the EPA limit 2000 µg/L
Main supplier: WASCO SD · 4,000 people · 2017
1/1 SYR4
Nitrate
40 µg/L 0.4%
of the EPA limit 10000 µg/L
Main supplier: WASCO SD · 4,000 people · 2019
1/1 SYR4
Lithium
17 µg/L
No EPA limit set
Main supplier: WASCO SD · 4,000 people · 2025
1/1 UCMR-5
Lead
5.639999999999997 µg/L 38%
of the EPA limit 15 µg/L
Main supplier: WASCO SD · 4,000 people · 2018
1/1 SYR4
Combined Radium (-226 And -228)
5.01 pCi/L 100%
of the EPA limit, at the 95th percentile of samples — 5 pCi/L
Main supplier: WASCO SD · 4,000 people · 2019
1/1 SYR4
TTHM
4.7425 µg/L 5.9%
of the EPA limit 80 µg/L
Main supplier: WASCO SD · 4,000 people · 2019
1/1 SYR4
Chloroform
2.905 µg/L
No EPA limit set
Main supplier: WASCO SD · 4,000 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
2.2 µg/L 3.7%
of the EPA limit 60 µg/L
Main supplier: WASCO SD · 4,000 people · 2019
1/1 SYR4
Bromodichloromethane
1.562 µg/L
No EPA limit set
Main supplier: WASCO SD · 4,000 people · 2019
1/1 SYR4
Dichloroacetic Acid
1.42 µg/L
No EPA limit set
Main supplier: WASCO SD · 4,000 people · 2019
1/1 SYR4
Dibromochloromethane
1.00725 µg/L
No EPA limit set
Main supplier: WASCO SD · 4,000 people · 2019
1/1 SYR4
Trichloroacetic Acid
0.7830 µg/L
No EPA limit set
Main supplier: WASCO SD · 4,000 people · 2019
1/1 SYR4
Lead
0.0015 mg/L 10%
of the EPA limit 0.0150 mg/L
Main supplier: WASCO SD · 4,000 people · 2025
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 Wasco

SupplierPopulation served
WASCO SD 4,000

Frequently asked questions about Wasco tap water

Is Wasco tap water safe to drink?

EPA testing detected 15 contaminants in the water serving Wasco. 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 Wasco?

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

What contaminants are in Wasco's water?

The contaminants EPA monitoring detected in Wasco include Fluoride, Copper, Barium, Nitrate, Lithium. 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.