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Carlinville, IL

EPA monitoring detected 23 contaminants across the 3 water suppliers serving Carlinville. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

3
water suppliers
9,731
people served
23
contaminants found
Illinois rankings Lead in Illinois PFAS in Illinois

What was found in Carlinville'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
1700 µg/L 17%
of the EPA limit 10000 µg/L
 1/3 SYR4
Nitrate-Nitrite
1500 µg/L 15%
of the EPA limit 10000 µg/L
 1/3 SYR4
Chlorite
1300 µg/L 130%
of the EPA limit, in the worst sample — 1000 µg/L
 1/3 SYR4
Copper
1000 µg/L 77%
of the EPA limit 1300 µg/L
 3/3 SYR4
Fluoride
957 µg/L 24%
of the EPA limit 4000 µg/L
 1/3 SYR4
TTHM
147.3 µg/L 184%
of the EPA limit, in the worst sample — 80 µg/L
 3/3 SYR4
Total Haloacetic Acids (HAA5)
136.6 µg/L 228%
of the EPA limit, in the worst sample — 60 µg/L
 3/3 SYR4
Chloroform
128.5 µg/L
No EPA limit set
 3/3 SYR4
Trichloroacetic Acid
87.1 µg/L
No EPA limit set
 3/3 SYR4
Lead
86 µg/L 573%
of the EPA limit, in the worst sample — 15 µg/L
 3/3 SYR4
Barium
55 µg/L 2.8%
of the EPA limit 2000 µg/L
 1/3 SYR4
Dichloroacetic Acid
49.5 µg/L
No EPA limit set
 3/3 SYR4
Bromodichloromethane
16.04 µg/L
No EPA limit set
 3/3 SYR4
Chromium
7.2 µg/L 7.2%
of the EPA limit 100 µg/L
 1/3 SYR4
Dibromochloromethane
4.71 µg/L
No EPA limit set
 3/3 SYR4
Atrazine
4.7 µg/L 157%
of the EPA limit, in the worst sample — 3 µg/L
 1/3 SYR4
Monobromoacetic Acid
4.11 µg/L
No EPA limit set
 1/3 SYR4
Simazine
2.7 µg/L 68%
of the EPA limit 4 µg/L
 1/3 SYR4
Arsenic
2.5 µg/L 25%
of the EPA limit 10 µg/L
 1/3 SYR4
Monochloroacetic Acid
2.45 µg/L
No EPA limit set
 2/3 SYR4
Dibromoacetic Acid
1.51 µg/L
No EPA limit set
 1/3 SYR4
Combined Radium (-226 And -228)
1.33 pCi/L 27%
of the EPA limit 5 pCi/L
 1/3 SYR4
Lead
0.0012 mg/L 8%
of the EPA limit 0.0150 mg/L
 3/3 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 Carlinville

SupplierPopulation served
CARLINVILLE 6,598
CENTRAL MACOUPIN COUNTY RWD 1,883
LAKE WILLIAMSON CHRISTIAN CENTER 1,250

Frequently asked questions about Carlinville tap water

Is Carlinville tap water safe to drink?

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

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

What contaminants are in Carlinville's water?

The contaminants EPA monitoring detected in Carlinville include Nitrate, Nitrate-Nitrite, Chlorite, Copper, Fluoride. 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.