B75/100
LOYAL WATERWORKS — Water Quality Report 2026
Serving 1,308 people · Wisconsin
Water Source
Groundwater
County
—
System ID
WI6100329
Violations
9
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.41 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2015.
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
Frequently Asked Questions About LOYAL WATERWORKS
Is LOYAL WATERWORKS water safe to drink?
LOYAL WATERWORKS water receives a grade of B (75/100), which is considered good. Out of 2 contaminants tested, 1 exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has LOYAL WATERWORKS detected?
2 contaminants were tested in LOYAL WATERWORKS's water. Notable contaminants include Copper (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does LOYAL WATERWORKS have any EPA violations?
Yes, LOYAL WATERWORKS has 9 EPA violation(s) on record, with the most recent in 2015. Violation types include MR, MCL, Other. 2 are health-based violations.
How many people does LOYAL WATERWORKS serve?
LOYAL WATERWORKS serves approximately 1,308 people, Wisconsin. The system provides water to 1 community: Loyal.
What type of water does LOYAL WATERWORKS provide?
LOYAL WATERWORKS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WI6100329.
How does LOYAL WATERWORKS compare to other utilities in Wisconsin?
LOYAL WATERWORKS scores 75/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Wisconsin state page for a full comparison of water systems.