B71/100
SLINGER WATER UTILITY — Water Quality Report 2026
Serving 5,659 people · Wisconsin
Water Source
Groundwater
County
—
System ID
WI2670116
Violations
10
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.70 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
1
Unresolved
1
Health-Related
TIER 2Resolved
Treatment technique violation
When: October 17, 2024 – June 6, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Unresolved
Disinfection byproduct treatment technique failure
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 SLINGER WATER UTILITY
Is SLINGER WATER UTILITY water safe to drink?
SLINGER WATER UTILITY water receives a grade of B (71/100), which is considered good. Out of 32 contaminants tested, 1 exceed EPA legal limits. 2 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has SLINGER WATER UTILITY detected?
32 contaminants were tested in SLINGER WATER UTILITY's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does SLINGER WATER UTILITY have any EPA violations?
Yes, SLINGER WATER UTILITY has 10 EPA violation(s) on record, with the most recent in 2024. Violation types include TT, Other, MCL. 2 are health-based violations.
How many people does SLINGER WATER UTILITY serve?
SLINGER WATER UTILITY serves approximately 5,659 people, Wisconsin. The system provides water to 1 community: Slinger.
What type of water does SLINGER WATER UTILITY provide?
SLINGER WATER UTILITY sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WI2670116.
How does SLINGER WATER UTILITY compare to other utilities in Wisconsin?
SLINGER WATER UTILITY scores 71/100 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.