← Cahokia, IL

Tap water quality report

ZIP 62006 — Cahokia, IL

EPA monitoring across the 2 water suppliers serving ZIP 62006 in Cahokia, IL detected 24 contaminants. A detection doesn't automatically mean the water is unsafe — see the highest level found below, with the EPA limit for each.

2
water suppliers
17,203
people served
24
contaminants found

What was found in ZIP 62006

The highest level seen across the suppliers serving this ZIP, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Copper
1500 µg/L 115%
of the EPA limit, in the worst sample — 1300 µg/L
1/2 SYR4
Fluoride
1000 µg/L 25%
of the EPA limit 4000 µg/L
1/2 SYR4
Barium
340 µg/L 17%
of the EPA limit 2000 µg/L
1/2 SYR4
TTHM
124.2 µg/L 155%
of the EPA limit, in the worst sample — 80 µg/L
1/2 SYR4
Chloroform
60.2 µg/L
No EPA limit set
1/2 SYR4
Total Haloacetic Acids (HAA5)
46.3 µg/L 77%
of the EPA limit 60 µg/L
1/2 SYR4
Nitrate
40 µg/L 0.4%
of the EPA limit 10000 µg/L
1/2 SYR4
Bromodichloromethane
36.9 µg/L
No EPA limit set
1/2 SYR4
Lithium
36 µg/L
No EPA limit set
2/2 UCMR-5
Dibromochloromethane
24.6 µg/L
No EPA limit set
1/2 SYR4
Dichloroacetic Acid
24.3 µg/L
No EPA limit set
1/2 SYR4
Nitrate-Nitrite
20 µg/L 0.2%
of the EPA limit 10000 µg/L
1/2 SYR4
Trichloroacetic Acid
16.8 µg/L
No EPA limit set
1/2 SYR4
Lead
11 µg/L 73%
of the EPA limit 15 µg/L
1/2 SYR4
Monobromoacetic Acid
8.36 µg/L
No EPA limit set
1/2 SYR4
Dibromoacetic Acid
6.19 µg/L
No EPA limit set
1/2 SYR4
Bromoform
5.71 µg/L
No EPA limit set
1/2 SYR4
Monochloroacetic Acid
4.39 µg/L
No EPA limit set
1/2 SYR4
Arsenic
2.5 µg/L 25%
of the EPA limit 10 µg/L
1/2 SYR4
Combined Radium (-226 And -228)
0.6120 pCi/L 12%
of the EPA limit 5 pCi/L
1/2 SYR4
Pfba
0.0148 µg/L
No EPA limit set
1/2 UCMR-5
Lead
0.0045 mg/L 30%
of the EPA limit 0.0150 mg/L
2/2 LCR
Pfhxa
0.0036 µg/L
No EPA limit set
1/2 UCMR-5
Pfpea
0.0031 µg/L
No EPA limit set
1/2 UCMR-5
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.

Water suppliers serving ZIP 62006

SupplierStatePopulation served
CAHOKIA HEIGHTS IL 12,528
CALHOUN COUNTY RWD IL 4,675

Frequently asked questions about ZIP 62006 tap water

Is the tap water in ZIP 62006 safe to drink?

EPA testing detected 24 contaminants across the water suppliers serving ZIP 62006. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.

Which water suppliers serve ZIP 62006?

2 public water suppliers report EPA drinking-water monitoring for ZIP 62006. Each is listed above with its population served.

What contaminants are in ZIP 62006's water?

EPA monitoring detected Copper, Fluoride, Barium, TTHM, Chloroform, and others across this ZIP's suppliers. The full list with levels and sources is above.