TapSafetyReport
C46/100

LAKE HALLIE WATERWORKS VILLAGE OF — Water Quality Report 2026

Serving 6,701 people · Wisconsin

Water Source
Groundwater
County
—
System ID
WI6090849
Violations
19

Contaminant Test Results

2 contaminants above EPA health goals
ContaminantDetectedLimit (MCL)Status
Copper (90th percentile)
1.71 mg/L1.30 mg/LOver Limit
Lead (90th percentile)
0.001 mg/L0.015 mg/LAbove Goal

EPA Violation History

8

Violations (last 5yr)

4

Unresolved

1

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, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Unresolved

Reporting violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: October 17, 2024Rule: Ground Water RuleVerify on EPA.gov
TIER 2Unresolved

Treatment technique violation

When: October 17, 2024Rule: Ground Water RuleVerify on EPA.gov
TIER 3Unresolved

Disinfection byproduct treatment technique failure

When: October 17, 2024Rule: Ground Water RuleVerify on EPA.gov
TIER 3Unresolved

Disinfection byproduct treatment technique failure

When: October 17, 2024Rule: Ground Water RuleVerify on EPA.gov
TIER 3Resolved

Failed to issue ongoing public notification

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: June 1, 2023 – September 18, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: January 1, 2023 – December 31, 2023Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: January 1, 2023 – December 31, 2023Rule: Stage 2 DBPREnforcement: 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 LAKE HALLIE WATERWORKS VILLAGE OF

Is LAKE HALLIE WATERWORKS VILLAGE OF water safe to drink?

LAKE HALLIE WATERWORKS VILLAGE OF water receives a grade of C (46/100), which is considered fair. 1 contaminant(s) exceed EPA legal limits and 19 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has LAKE HALLIE WATERWORKS VILLAGE OF detected?

32 contaminants were tested in LAKE HALLIE WATERWORKS VILLAGE OF's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).

Does LAKE HALLIE WATERWORKS VILLAGE OF have any EPA violations?

Yes, LAKE HALLIE WATERWORKS VILLAGE OF has 19 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, RPT, TT. 6 are health-based violations.

How many people does LAKE HALLIE WATERWORKS VILLAGE OF serve?

LAKE HALLIE WATERWORKS VILLAGE OF serves approximately 6,701 people, Wisconsin. The system provides water to 1 community: Chippewa Falls.

What type of water does LAKE HALLIE WATERWORKS VILLAGE OF provide?

LAKE HALLIE WATERWORKS VILLAGE OF sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WI6090849.

How does LAKE HALLIE WATERWORKS VILLAGE OF compare to other utilities in Wisconsin?

LAKE HALLIE WATERWORKS VILLAGE OF scores 46/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our Wisconsin state page for a full comparison of water systems.

Cities Served

Chippewa Falls