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Tap water quality report

Forest Lake, MN

EPA monitoring detected 11 contaminants across the 1 water supplier serving Forest Lake. 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
11,800
people served
11
contaminants found
Minnesota rankings Lead in Minnesota PFAS in Minnesota

What was found in Forest Lake'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
Fluoride
1100 µg/L 28%
of the EPA limit 4000 µg/L
Main supplier: Forest Lake · 11,800 people · 2019
1/1 SYR4
Copper
532.4 µg/L 41%
of the EPA limit 1300 µg/L
Main supplier: Forest Lake · 11,800 people · 2019
1/1 SYR4
Nitrate-Nitrite
484.5 µg/L 4.8%
of the EPA limit 10000 µg/L
Main supplier: Forest Lake · 11,800 people · 2019
1/1 SYR4
Chloroform
40.45 µg/L
No EPA limit set
Main supplier: Forest Lake · 11,800 people · 2019
1/1 SYR4
Barium
22.3 µg/L 1.1%
of the EPA limit 2000 µg/L
Main supplier: Forest Lake · 11,800 people · 2018
1/1 SYR4
Dichloroacetic Acid
11.6 µg/L
No EPA limit set
Main supplier: Forest Lake · 11,800 people · 2019
1/1 SYR4
Trichloroacetic Acid
10.16 µg/L
No EPA limit set
Main supplier: Forest Lake · 11,800 people · 2019
1/1 SYR4
Lead
7.6 µg/L 51%
of the EPA limit 15 µg/L
Main supplier: Forest Lake · 11,800 people · 2019
1/1 SYR4
Bromodichloromethane
7.305 µg/L
No EPA limit set
Main supplier: Forest Lake · 11,800 people · 2019
1/1 SYR4
Dibromochloromethane
1.775 µg/L
No EPA limit set
Main supplier: Forest Lake · 11,800 people · 2019
1/1 SYR4
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
Main supplier: Forest Lake · 11,800 people · 2025
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 Forest Lake

SupplierPopulation served
Forest Lake 11,800

Frequently asked questions about Forest Lake tap water

Is Forest Lake tap water safe to drink?

EPA testing detected 11 contaminants in the water serving Forest Lake. 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 Forest Lake?

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

What contaminants are in Forest Lake's water?

The contaminants EPA monitoring detected in Forest Lake include Fluoride, Copper, Nitrate-Nitrite, Chloroform, Barium. 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.