D20/100
Fort Mccoy Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 10,000 residents · Wisconsin
What's In Fort Mccoy's Tap Water?
52
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) | 0.008 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2022 – January 10, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
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
FORT MCCOY NORTH POST
Population Served
10,000
Water Source
Groundwater
System ID
WI6420302
Frequently Asked Questions About Fort Mccoy Water
Is Fort Mccoy tap water safe to drink?
Fort Mccoy, Wisconsin tap water receives a grade of D (20/100), which is considered poor. 1 contaminant(s) exceed EPA maximum contaminant levels and 61 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Fort Mccoy's water?
Of the 52 contaminants tested in Fort Mccoy'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 Fort Mccoy have any water quality violations?
Yes, Fort Mccoy has 61 EPA violation(s) on record, with the most recent in 2022. Violation types include MR, MON, TT. 2 of these are health-based violations, which are the most serious category.
Do I need a water filter in Fort Mccoy?
Based on EPA data, using a water filter in Fort Mccoy 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 Fort Mccoy's tap water come from?
Fort Mccoy's drinking water is sourced from groundwater and supplied by FORT MCCOY NORTH POST. The system serves approximately 10,000 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Fort Mccoy'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. Fort Mccoy'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 Fort Mccoy's water compare to other cities in Wisconsin?
Fort Mccoy's water quality score of 20/100 earns a grade of D, which is considered poor. This is a concerning score that suggests significant water quality issues. Visit our Wisconsin state page to see how all cities in the state compare.
What should I do if I'm concerned about Fort Mccoy's water quality?
If you have concerns about Fort Mccoy'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 (FORT MCCOY NORTH POST) 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.