B77/100
Fox Lake Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 1,610 residents · Wisconsin
What's In Fox Lake's Tap Water?
2
Contaminants Tested
1
Exceed EPA Limits
1
Above EPA Goals
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.40 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | < 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2011.
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
FOX LAKE WATERWORKS
Population Served
1,610
Water Source
Groundwater
System ID
WI1140145
Frequently Asked Questions About Fox Lake Water
Is Fox Lake tap water safe to drink?
Fox Lake, Wisconsin tap water receives a grade of B (77/100), which is considered good. Out of 2 contaminants tested, 1 exceed EPA maximum contaminant levels (MCLs) and 2 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Fox Lake's water?
Of the 2 contaminants tested in Fox Lake's water supply, the most notable include Copper (90th percentile), Lead (90th percentile). 1 contaminant(s) exceed EPA legal limits (MCLs). 2 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Fox Lake have any water quality violations?
Yes, Fox Lake has 8 EPA violation(s) on record, with the most recent in 2011. Violation types include MR, Other, TT. 1 of these are health-based violations, which are the most serious category.
Do I need a water filter in Fox Lake?
Based on EPA data, using a water filter in Fox Lake is recommended. 1 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.
Where does Fox Lake's tap water come from?
Fox Lake's drinking water is sourced from groundwater and supplied by FOX LAKE WATERWORKS. The system serves approximately 1,610 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Fox Lake's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Fox Lake's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Fox Lake's water compare to other cities in Wisconsin?
Fox Lake's water quality score of 77/100 earns a grade of B, which is considered good. This is an above-average score compared to many cities nationwide. Visit our Wisconsin state page to see how all cities in the state compare.
What should I do if I'm concerned about Fox Lake's water quality?
If you have concerns about Fox Lake's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (FOX LAKE WATERWORKS) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.