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Tap water quality report

Gillespie, IL

EPA monitoring detected 22 contaminants across the 1 water supplier serving Gillespie. 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
3,737
people served
22
contaminants found
Illinois rankings Lead in Illinois PFAS in Illinois

What was found in Gillespie'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
1400 µg/L 14%
of the EPA limit 10000 µg/L
Main supplier: GILLESPIE · 3,737 people · 2019
1/1 SYR4
Nitrate-Nitrite
943 µg/L 9.4%
of the EPA limit 10000 µg/L
Main supplier: GILLESPIE · 3,737 people · 2018
1/1 SYR4
Fluoride
895.65 µg/L 22%
of the EPA limit 4000 µg/L
Main supplier: GILLESPIE · 3,737 people · 2019
1/1 SYR4
Copper
574.5 µg/L 44%
of the EPA limit 1300 µg/L
Main supplier: GILLESPIE · 3,737 people · 2017
1/1 SYR4
Lead
344.36 µg/L 2296%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: GILLESPIE · 3,737 people · 2017
1/1 SYR4
Cyanide
58 µg/L 29%
of the EPA limit 200 µg/L
Main supplier: GILLESPIE · 3,737 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
47.65 µg/L 79%
of the EPA limit 60 µg/L
Main supplier: GILLESPIE · 3,737 people · 2019
1/1 SYR4
Barium
44 µg/L 2.2%
of the EPA limit 2000 µg/L
Main supplier: GILLESPIE · 3,737 people · 2019
1/1 SYR4
TTHM
37.648 µg/L 47%
of the EPA limit 80 µg/L
Main supplier: GILLESPIE · 3,737 people · 2019
1/1 SYR4
Chloroform
30.236 µg/L
No EPA limit set
Main supplier: GILLESPIE · 3,737 people · 2019
1/1 SYR4
Trichloroacetic Acid
26.575 µg/L
No EPA limit set
Main supplier: GILLESPIE · 3,737 people · 2019
1/1 SYR4
Dichloroacetic Acid
19.445 µg/L
No EPA limit set
Main supplier: GILLESPIE · 3,737 people · 2019
1/1 SYR4
Monobromoacetic Acid
13.787 µg/L
No EPA limit set
Main supplier: GILLESPIE · 3,737 people · 2019
1/1 SYR4
Bromodichloromethane
6.902 µg/L
No EPA limit set
Main supplier: GILLESPIE · 3,737 people · 2019
1/1 SYR4
Monochloroacetic Acid
3.4285 µg/L
No EPA limit set
Main supplier: GILLESPIE · 3,737 people · 2019
1/1 SYR4
Dibromochloromethane
2.6553 µg/L
No EPA limit set
Main supplier: GILLESPIE · 3,737 people · 2019
1/1 SYR4
Dibromoacetic Acid
1.621 µg/L
No EPA limit set
Main supplier: GILLESPIE · 3,737 people · 2019
1/1 SYR4
Atrazine
1.38 µg/L 46%
of the EPA limit 3 µg/L
Main supplier: GILLESPIE · 3,737 people · 2019
1/1 SYR4
Simazine
1.2555 µg/L 31%
of the EPA limit 4 µg/L
Main supplier: GILLESPIE · 3,737 people · 2019
1/1 SYR4
Combined Radium (-226 And -228)
1.23 pCi/L 25%
of the EPA limit 5 pCi/L
Main supplier: GILLESPIE · 3,737 people · 2017
1/1 SYR4
Arsenic
1.075 µg/L 11%
of the EPA limit 10 µg/L
Main supplier: GILLESPIE · 3,737 people · 2019
1/1 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: GILLESPIE · 3,737 people · 2023
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 Gillespie

SupplierPopulation served
GILLESPIE 3,737

Frequently asked questions about Gillespie tap water

Is Gillespie tap water safe to drink?

EPA testing detected 22 contaminants in the water serving Gillespie. 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 Gillespie?

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

What contaminants are in Gillespie's water?

The contaminants EPA monitoring detected in Gillespie include Nitrate, Nitrate-Nitrite, Fluoride, Copper, Lead. 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.