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Water Quality Report

Forest Lake, WI

Washington County · 12,040 residents · 2 water systems

0

Contaminants detected

0

PFAS compounds

—

Hardness (mg/L)

0

Above legal limits

1

Above health guidelines

Forest Lake drinking water comes from groundwater wells. Based on the most recent monitoring data, 0 contaminants have been detected in the water supply. PFAS testing has been conducted with no detections.

Limited monitoring data available

The water systems serving Forest Lake are small private systems (population served: 12,040) and are not part of Wisconsin DNR's main contaminant monitoring program. No detected contaminant data is available for these systems.

If you're researching the main municipal utility serving Forest Lake, search for your specific address below — the search returns the actual water system serving your residence, which may be different from what's listed here.

Water systems serving Forest Lake

Forest Lake

11,800 servedGroundwater0 contaminants1 above guideline
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Liberty Ponds Development

240 servedGroundwater0 contaminants
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Other cities in Washington County

Water quality reports for nearby Minnesota communities.

BayportBirchwoodCottage GroveHastingsHugoLake ElmoLakelandMahtomediMarine On St CroixMinneapolisNewportOak Park Heights

Frequently asked questions

Is Forest Lake, WI tap water safe to drink?
Forest Lake tap water meets EPA legal standards (Maximum Contaminant Levels). However, 1 contaminant is present above independent health guidelines, which are often stricter than legal limits. 0 contaminants have been detected in the water supply, including . View the detailed report for each water system to see specific levels and how they compare to both legal limits and health guidelines.
What contaminants are in Forest Lake water?
Monitoring has detected 0 contaminants in Forest Lake's water supply: . 1 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Forest Lake water have PFAS?
Forest Lake's water has been tested for PFAS compounds with no detections. Testing was conducted as part of the EPA's Unregulated Contaminant Monitoring Rule (UCMR5) program.
Where does Forest Lake get its drinking water?
Forest Lake's drinking water comes from groundwater wells that draw from underground aquifers. The water is treated and tested according to Wisconsin DNR and EPA requirements before distribution. Forest Lake is served by 2 water systems, the largest being Forest Lake (serving 11,800 people).

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