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Tap water quality report

Mount Zion, IL

EPA monitoring detected 13 contaminants across the 1 water supplier serving Mount Zion. 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
5,833
people served
13
contaminants found
Illinois rankings Lead in Illinois PFAS in Illinois

What was found in Mount Zion'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
TTHM
79.9 µg/L 100%
of the EPA limit 80 µg/L
Main supplier: MOUNT ZION · 5,833 people · 2019
1/1 SYR4
Chloroform
62.6 µg/L
No EPA limit set
Main supplier: MOUNT ZION · 5,833 people · 2019
1/1 SYR4
Lead
60.635 µg/L 404%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: MOUNT ZION · 5,833 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
20 µg/L 33%
of the EPA limit 60 µg/L
Main supplier: MOUNT ZION · 5,833 people · 2019
1/1 SYR4
Dichloroacetic Acid
16.2 µg/L
No EPA limit set
Main supplier: MOUNT ZION · 5,833 people · 2019
1/1 SYR4
Bromodichloromethane
13.8 µg/L
No EPA limit set
Main supplier: MOUNT ZION · 5,833 people · 2019
1/1 SYR4
Dibromochloromethane
5.8 µg/L
No EPA limit set
Main supplier: MOUNT ZION · 5,833 people · 2019
1/1 SYR4
Trichloroacetic Acid
5.6 µg/L
No EPA limit set
Main supplier: MOUNT ZION · 5,833 people · 2019
1/1 SYR4
Monochloroacetic Acid
2.37 µg/L
No EPA limit set
Main supplier: MOUNT ZION · 5,833 people · 2019
1/1 SYR4
Dibromoacetic Acid
1.87 µg/L
No EPA limit set
Main supplier: MOUNT ZION · 5,833 people · 2019
1/1 SYR4
Bromoform
1.09 µg/L
No EPA limit set
Main supplier: MOUNT ZION · 5,833 people · 2019
1/1 SYR4
Pfpea
0.0034 µg/L
No EPA limit set
Main supplier: MOUNT ZION · 5,833 people · 2024
1/1 UCMR-5
Lead
0.0015 mg/L 10%
of the EPA limit 0.0150 mg/L
Main supplier: MOUNT ZION · 5,833 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 Mount Zion

SupplierPopulation served
MOUNT ZION 5,833

Frequently asked questions about Mount Zion tap water

Is Mount Zion tap water safe to drink?

EPA testing detected 13 contaminants in the water serving Mount Zion. 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 Mount Zion?

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

What contaminants are in Mount Zion's water?

The contaminants EPA monitoring detected in Mount Zion include TTHM, Chloroform, Lead, Total Haloacetic Acids (HAA5), Dichloroacetic Acid. 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.