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Tap water quality report

Greenfield, IL

EPA monitoring detected 20 contaminants across the 1 water supplier serving Greenfield. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

1
water supplier
1,097
people served
20
contaminants found
Illinois rankings Lead in Illinois PFAS in Illinois

What was found in Greenfield's water

The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
1800 µg/L 18%
of the EPA limit 10000 µg/L
 1/1 SYR4
Nitrate-Nitrite
1600 µg/L 16%
of the EPA limit 10000 µg/L
 1/1 SYR4
Fluoride
898 µg/L 22%
of the EPA limit 4000 µg/L
 1/1 SYR4
Copper
790 µg/L 61%
of the EPA limit 1300 µg/L
 1/1 SYR4
Total Haloacetic Acids (HAA5)
190 µg/L 317%
of the EPA limit, in the worst sample — 60 µg/L
 1/1 SYR4
Dichloroacetic Acid
116 µg/L
No EPA limit set
 1/1 SYR4
TTHM
98 µg/L 123%
of the EPA limit, in the worst sample — 80 µg/L
 1/1 SYR4
Chloroform
87.4 µg/L
No EPA limit set
 1/1 SYR4
Trichloroacetic Acid
73.7 µg/L
No EPA limit set
 1/1 SYR4
Barium
56 µg/L 2.8%
of the EPA limit 2000 µg/L
 1/1 SYR4
Lead
48 µg/L 320%
of the EPA limit, in the worst sample — 15 µg/L
 1/1 SYR4
Monobromoacetic Acid
13.4 µg/L
No EPA limit set
 1/1 SYR4
Bromodichloromethane
13.3 µg/L
No EPA limit set
 1/1 SYR4
Monochloroacetic Acid
6.97 µg/L
No EPA limit set
 1/1 SYR4
Atrazine
4.3 µg/L 143%
of the EPA limit, in the worst sample — 3 µg/L
 1/1 SYR4
Simazine
4.2 µg/L 105%
of the EPA limit, in the worst sample — 4 µg/L
 1/1 SYR4
Dibromochloromethane
2.2 µg/L
No EPA limit set
 1/1 SYR4
Arsenic
1.2 µg/L 12%
of the EPA limit 10 µg/L
 1/1 SYR4
2,4-D
1.1 µg/L 1.6%
of the EPA limit 70 µg/L
 1/1 SYR4
Lead
0.0027 mg/L 18%
of the EPA limit 0.0150 mg/L
 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 single worst sample on record — 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 Greenfield

SupplierPopulation served
GREENFIELD 1,097

Frequently asked questions about Greenfield tap water

Is Greenfield tap water safe to drink?

EPA testing detected 20 contaminants in the water serving Greenfield. 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 Greenfield?

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

What contaminants are in Greenfield's water?

The contaminants EPA monitoring detected in Greenfield include Nitrate, Nitrate-Nitrite, Fluoride, Copper, Total Haloacetic Acids (HAA5). The full list, with the highest level found 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.