← Lake Forest, IL

Tap water quality report

ZIP 60045 — Lake Forest, IL

EPA monitoring across the 2 water suppliers serving ZIP 60045 in Lake Forest, IL detected 20 contaminants. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier below, with the EPA limit for each.

2
water suppliers
27,582
people served
20
contaminants found

What was found in ZIP 60045

The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Fluoride
1055.5 µg/L 26%
of the EPA limit 4000 µg/L
Main supplier: LAKE FOREST · 19,642 people · 2019
1/2 SYR4
Nitrate
620 µg/L 6.2%
of the EPA limit 10000 µg/L
Main supplier: LAKE FOREST · 19,642 people · 2019
1/2 SYR4
Lead
12.199999999999996 µg/L 81%
of the EPA limit 15 µg/L
Main supplier: LAKE FOREST · 19,642 people · 2018
Highest in the ZIP: 468.93999999999994 µg/L — LINCOLNSHIRE · 7,940 people · 2017
2/2 SYR4
Copper
312.14999999999986 µg/L 24%
of the EPA limit 1300 µg/L
Main supplier: LAKE FOREST · 19,642 people · 2018
Highest in the ZIP: 434.99999999999966 µg/L — LINCOLNSHIRE · 7,940 people · 2017
2/2 SYR4
TTHM
58.019999999999996 µg/L 73%
of the EPA limit 80 µg/L
Main supplier: LAKE FOREST · 19,642 people · 2019
Highest in the ZIP: 73.595 µg/L — LINCOLNSHIRE · 7,940 people · 2019
2/2 SYR4
Chloroform
38.63999999999998 µg/L
No EPA limit set
Main supplier: LAKE FOREST · 19,642 people · 2019
Highest in the ZIP: 50.3 µg/L — LINCOLNSHIRE · 7,940 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
26.919999999999998 µg/L 45%
of the EPA limit 60 µg/L
Main supplier: LAKE FOREST · 19,642 people · 2019
2/2 SYR4
Barium
24.599999999999998 µg/L 1.2%
of the EPA limit 2000 µg/L
Main supplier: LAKE FOREST · 19,642 people · 2019
1/2 SYR4
Bromodichloromethane
14.559999999999997 µg/L
No EPA limit set
Main supplier: LAKE FOREST · 19,642 people · 2019
Highest in the ZIP: 16.245 µg/L — LINCOLNSHIRE · 7,940 people · 2019
2/2 SYR4
Dichloroacetic Acid
13.594999999999999 µg/L
No EPA limit set
Main supplier: LAKE FOREST · 19,642 people · 2019
Highest in the ZIP: 13.6 µg/L — LINCOLNSHIRE · 7,940 people · 2019
2/2 SYR4
Trichloroacetic Acid
11.639999999999995 µg/L
No EPA limit set
Main supplier: LAKE FOREST · 19,642 people · 2019
2/2 SYR4
Dibromochloromethane
6.9552 µg/L
No EPA limit set
Main supplier: LAKE FOREST · 19,642 people · 2019
Highest in the ZIP: 7.345 µg/L — LINCOLNSHIRE · 7,940 people · 2019
2/2 SYR4
Monochloroacetic Acid
6.817 µg/L
No EPA limit set
Main supplier: LAKE FOREST · 19,642 people · 2019
1/2 SYR4
Dalapon
2.8235 µg/L 1.4%
of the EPA limit 200 µg/L
Main supplier: LAKE FOREST · 19,642 people · 2019
1/2 SYR4
Bromoform
2.671899999999998 µg/L
No EPA limit set
Main supplier: LAKE FOREST · 19,642 people · 2019
1/2 SYR4
Dibromoacetic Acid
2.31 µg/L
No EPA limit set
Main supplier: LAKE FOREST · 19,642 people · 2019
2/2 SYR4
Selenium
2.2 µg/L 4.4%
of the EPA limit 50 µg/L
Main supplier: LAKE FOREST · 19,642 people · 2019
1/2 SYR4
Arsenic
0.9636 µg/L 9.6%
of the EPA limit 10 µg/L
Main supplier: LAKE FOREST · 19,642 people · 2019
1/2 SYR4
Monobromoacetic Acid
0.6828 µg/L
No EPA limit set
Main supplier: LAKE FOREST · 19,642 people · 2019
1/2 SYR4
Lead
0.0280 mg/L 187%
above the EPA limit of 0.0150 mg/L
Main supplier: LAKE FOREST · 19,642 people · 2025
2/2 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.

Water suppliers serving ZIP 60045

SupplierStatePopulation served
LAKE FOREST IL 19,642
LINCOLNSHIRE IL 7,940

Frequently asked questions about ZIP 60045 tap water

Is the tap water in ZIP 60045 safe to drink?

EPA testing detected 20 contaminants across the water suppliers serving ZIP 60045. 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 60045?

2 public water suppliers report EPA drinking-water monitoring for ZIP 60045. Each is listed above with its population served.

What contaminants are in ZIP 60045's water?

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