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Tap water quality report

North Aurora, IL

EPA monitoring detected 12 contaminants across the 1 water supplier serving North Aurora. 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
18,261
people served
12
contaminants found
Illinois rankings Lead in Illinois PFAS in Illinois

What was found in North Aurora'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
1222 µg/L 31%
of the EPA limit 4000 µg/L
Main supplier: NORTH AURORA · 18,261 people · 2018
1/1 SYR4
Copper
219 µg/L 17%
of the EPA limit 1300 µg/L
Main supplier: NORTH AURORA · 18,261 people · 2017
1/1 SYR4
Barium
176 µg/L 8.8%
of the EPA limit 2000 µg/L
Main supplier: NORTH AURORA · 18,261 people · 2018
1/1 SYR4
Nitrate
50 µg/L 0.5%
of the EPA limit 10000 µg/L
Main supplier: NORTH AURORA · 18,261 people · 2019
1/1 SYR4
Lithium
34.6 µg/L
No EPA limit set
Main supplier: NORTH AURORA · 18,261 people · 2025
1/1 UCMR-5
Nitrate-Nitrite
30 µg/L 0.3%
of the EPA limit 10000 µg/L
Main supplier: NORTH AURORA · 18,261 people · 2018
1/1 SYR4
Lead
13.945 µg/L 93%
of the EPA limit 15 µg/L
Main supplier: NORTH AURORA · 18,261 people · 2017
1/1 SYR4
Combined Radium (-226 And -228)
9.27 pCi/L 185%
of the EPA limit, at the 95th percentile of samples — 5 pCi/L
Main supplier: NORTH AURORA · 18,261 people · 2019
1/1 SYR4
Monobromoacetic Acid
4.2665 µg/L
No EPA limit set
Main supplier: NORTH AURORA · 18,261 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
4.2665 µg/L 7.1%
of the EPA limit 60 µg/L
Main supplier: NORTH AURORA · 18,261 people · 2019
1/1 SYR4
Arsenic
1.1 µg/L 11%
of the EPA limit 10 µg/L
Main supplier: NORTH AURORA · 18,261 people · 2018
1/1 SYR4
Lead
0.0062 mg/L 41%
of the EPA limit 0.0150 mg/L
Main supplier: NORTH AURORA · 18,261 people · 2026
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 North Aurora

SupplierPopulation served
NORTH AURORA 18,261

Frequently asked questions about North Aurora tap water

Is North Aurora tap water safe to drink?

EPA testing detected 12 contaminants in the water serving North Aurora. 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 North Aurora?

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

What contaminants are in North Aurora's water?

The contaminants EPA monitoring detected in North Aurora 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.