B63/100
SOMERSET WATERWORKS — Water Quality Report 2026
Serving 2,854 people · Wisconsin
Water Source
Groundwater
County
—
System ID
WI6560137
Violations
14
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
6
Violations (last 5yr)
3
Unresolved
1
Health-Related
TIER 3Unresolved
Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
TIER 3Resolved
Reporting violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 17, 2024 – October 30, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Treatment technique violation
When: October 17, 2024 – May 22, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Unresolved
Disinfection byproduct treatment technique failure
TIER 3Unresolved
Disinfection byproduct treatment technique failure
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, 2024 – January 16, 2024Rule: 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
Frequently Asked Questions About SOMERSET WATERWORKS
Is SOMERSET WATERWORKS water safe to drink?
SOMERSET WATERWORKS water receives a grade of B (63/100), which is considered good. Out of 1 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has SOMERSET WATERWORKS detected?
1 contaminants were tested in SOMERSET WATERWORKS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does SOMERSET WATERWORKS have any EPA violations?
Yes, SOMERSET WATERWORKS has 14 EPA violation(s) on record, with the most recent in 2025. Violation types include RPT, TT, Other. 5 are health-based violations.
How many people does SOMERSET WATERWORKS serve?
SOMERSET WATERWORKS serves approximately 2,854 people, Wisconsin. The system provides water to 1 community: Somerset.
What type of water does SOMERSET WATERWORKS provide?
SOMERSET WATERWORKS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WI6560137.
How does SOMERSET WATERWORKS compare to other utilities in Wisconsin?
SOMERSET WATERWORKS scores 63/100 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.