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Bethalto, IL

EPA monitoring detected 23 contaminants across the 2 water suppliers serving Bethalto. 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.

2
water suppliers
16,988
people served
23
contaminants found
Illinois rankings Lead in Illinois PFAS in Illinois

What was found in Bethalto'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
1700 µg/L 17%
of the EPA limit 10000 µg/L
Main supplier: BETHALTO · 15,210 people · 2019
1/2 SYR4
Copper
892.9999999999998 µg/L 69%
of the EPA limit 1300 µg/L
Main supplier: BETHALTO · 15,210 people · 2017
Highest in the city: 1300 µg/L — MEADOWBROOK PWD · 1,778 people · 2019
2/2 SYR4
Fluoride
1043.3 µg/L 26%
of the EPA limit 4000 µg/L
Main supplier: BETHALTO · 15,210 people · 2018
1/2 SYR4
Barium
36.099999999999994 µg/L 1.8%
of the EPA limit 2000 µg/L
Main supplier: BETHALTO · 15,210 people · 2018
1/2 SYR4
TTHM
35.466 µg/L 44%
of the EPA limit 80 µg/L
Main supplier: BETHALTO · 15,210 people · 2019
2/2 SYR4
Dichloroacetic Acid
21.729499999999998 µg/L
No EPA limit set
Main supplier: BETHALTO · 15,210 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
5.912 µg/L 9.9%
of the EPA limit 60 µg/L
Main supplier: BETHALTO · 15,210 people · 2019
Highest in the city: 16.279999999999987 µg/L — MEADOWBROOK PWD · 1,778 people · 2019
2/2 SYR4
Dibromochloromethane
14.359499999999999 µg/L
No EPA limit set
Main supplier: BETHALTO · 15,210 people · 2019
2/2 SYR4
Trichloroacetic Acid
9.55 µg/L
No EPA limit set
Main supplier: BETHALTO · 15,210 people · 2019
2/2 SYR4
Bromoform
9.10235 µg/L
No EPA limit set
Main supplier: BETHALTO · 15,210 people · 2019
2/2 SYR4
Bromodichloromethane
8.995999999999999 µg/L
No EPA limit set
Main supplier: BETHALTO · 15,210 people · 2019
2/2 SYR4
Monobromoacetic Acid
5.382 µg/L
No EPA limit set
Main supplier: BETHALTO · 15,210 people · 2019
2/2 SYR4
Dibromoacetic Acid
5.34 µg/L
No EPA limit set
Main supplier: BETHALTO · 15,210 people · 2019
2/2 SYR4
Lead
5.3 µg/L 35%
of the EPA limit 15 µg/L
Main supplier: BETHALTO · 15,210 people · 2017
2/2 SYR4
Chloroform
4.06 µg/L
No EPA limit set
Main supplier: BETHALTO · 15,210 people · 2019
2/2 SYR4
Selenium
3.3 µg/L 6.6%
of the EPA limit 50 µg/L
Main supplier: BETHALTO · 15,210 people · 2018
1/2 SYR4
Monochloroacetic Acid
2.62 µg/L
No EPA limit set
Main supplier: BETHALTO · 15,210 people · 2019
1/2 SYR4
Arsenic
1.39 µg/L 14%
of the EPA limit 10 µg/L
Main supplier: BETHALTO · 15,210 people · 2018
1/2 SYR4
Combined Radium (-226 And -228)
0.9671 pCi/L 19%
of the EPA limit 5 pCi/L
Main supplier: BETHALTO · 15,210 people · 2019
1/2 SYR4
Trichloroethylene
0.6355 µg/L 13%
of the EPA limit 5 µg/L
Main supplier: BETHALTO · 15,210 people · 2018
1/2 SYR4
PFBS
0.0045 µg/L
No EPA limit set
Main supplier: BETHALTO · 15,210 people · 2025
1/2 UCMR-5
PFHXS
0.0036 µg/L
No EPA limit set
Main supplier: BETHALTO · 15,210 people · 2025
1/2 UCMR-5
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
Main supplier: BETHALTO · 15,210 people · 2023
Highest in the city: 0.0018 mg/L — MEADOWBROOK PWD · 1,778 people · 2025
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 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 Bethalto

SupplierPopulation served
BETHALTO 15,210
MEADOWBROOK PWD 1,778

Frequently asked questions about Bethalto tap water

Is Bethalto tap water safe to drink?

EPA testing detected 23 contaminants in the water serving Bethalto. 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 Bethalto?

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

What contaminants are in Bethalto's water?

The contaminants EPA monitoring detected in Bethalto include Nitrate, Copper, Fluoride, Barium, TTHM. 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.