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Tap water quality report

Aurora, IN

EPA monitoring detected 17 contaminants across the 4 water suppliers serving 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.

4
water suppliers
17,815
people served
17
contaminants found
Indiana rankings Lead in Indiana PFAS in Indiana

What was found in 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
Nitrate
482 µg/L 4.8%
of the EPA limit 10000 µg/L
Main supplier: AURORA UTILITIES · 6,415 people · 2019
Highest in the city: 6950 µg/L — ABERDEEN PATE WATER COMPANY, INC. · 4,787 people · 2019
3/4 SYR4
Nitrate-Nitrite
5847 µg/L 58%
of the EPA limit 10000 µg/L
Highest in the city: ABERDEEN PATE WATER COMPANY, INC. · 4,787 people · 2018
1/4 SYR4
Copper
269.4500000000002 µg/L 21%
of the EPA limit 1300 µg/L
Main supplier: AURORA UTILITIES · 6,415 people · 2017
Highest in the city: 1583.9999999999982 µg/L — ABERDEEN PATE WATER COMPANY, INC. · 4,787 people · 2019
4/4 SYR4
Fluoride
599.5 µg/L 15%
of the EPA limit 4000 µg/L
Main supplier: AURORA UTILITIES · 6,415 people · 2017
Highest in the city: 896.65 µg/L — L-M-S CONSERVANCY DISTRICT · 5,375 people · 2017
3/4 SYR4
Barium
86 µg/L 4.3%
of the EPA limit 2000 µg/L
Highest in the city: ABERDEEN PATE WATER COMPANY, INC. · 4,787 people · 2018
1/4 SYR4
TTHM
37.35 µg/L 47%
of the EPA limit 80 µg/L
Main supplier: AURORA UTILITIES · 6,415 people · 2019
4/4 SYR4
Lead
27.799999999999986 µg/L 185%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: AURORA UTILITIES · 6,415 people · 2017
Highest in the city: 34.109999999999985 µg/L — ABERDEEN PATE WATER COMPANY, INC. · 4,787 people · 2019
4/4 SYR4
Total Haloacetic Acids (HAA5)
9.589999999999998 µg/L 16%
of the EPA limit 60 µg/L
Main supplier: AURORA UTILITIES · 6,415 people · 2019
Highest in the city: 17.099999999999994 µg/L — ABERDEEN PATE WATER COMPANY, INC. · 4,787 people · 2019
4/4 SYR4
Gross Beta Particle Activity
3.1 pCi/L
No EPA limit set
Highest in the city: ABERDEEN PATE WATER COMPANY, INC. · 4,787 people · 2019
1/4 SYR4
Dibromochloromethane
3 µg/L
No EPA limit set
Highest in the city: L-M-S CONSERVANCY DISTRICT · 5,375 people · 2014
1/4 SYR4
Gross Alpha, Excl. Radon And U
1.7 pCi/L 11%
of the EPA limit 15 pCi/L
Highest in the city: ABERDEEN PATE WATER COMPANY, INC. · 4,787 people · 2019
1/4 SYR4
Bromodichloromethane
1.6 µg/L
No EPA limit set
Highest in the city: L-M-S CONSERVANCY DISTRICT · 5,375 people · 2014
1/4 SYR4
Bromoform
1.4 µg/L
No EPA limit set
Highest in the city: L-M-S CONSERVANCY DISTRICT · 5,375 people · 2014
1/4 SYR4
Arsenic
0.9900 µg/L 9.9%
of the EPA limit 10 µg/L
Highest in the city: L-M-S CONSERVANCY DISTRICT · 5,375 people · 2017
1/4 SYR4
1,1,1-Trichloroethane
0.6900 µg/L 0.3%
of the EPA limit 200 µg/L
Highest in the city: ABERDEEN PATE WATER COMPANY, INC. · 4,787 people · 2019
1/4 SYR4
Chloroform
0.6000 µg/L
No EPA limit set
Highest in the city: L-M-S CONSERVANCY DISTRICT · 5,375 people · 2014
1/4 SYR4
Lead
0.0023 mg/L 15%
of the EPA limit 0.0150 mg/L
Main supplier: AURORA UTILITIES · 6,415 people · 2023
Highest in the city: 0.0041 mg/L — ABERDEEN PATE WATER COMPANY, INC. · 4,787 people · 2025
4/4 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 Aurora

SupplierPopulation served
AURORA UTILITIES 6,415
L-M-S CONSERVANCY DISTRICT 5,375
ABERDEEN PATE WATER COMPANY, INC. 4,787
HOGAN WATER CORPORATION 1,238

Frequently asked questions about Aurora tap water

Is Aurora tap water safe to drink?

EPA testing detected 17 contaminants in the water serving 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 Aurora?

4 public water suppliers report drinking-water monitoring for Aurora, Indiana to the EPA. Each is listed above with its population served.

What contaminants are in Aurora's water?

The contaminants EPA monitoring detected in Aurora include Nitrate, Nitrate-Nitrite, Copper, Fluoride, Barium. 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.