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F0/100

BROOKFIELD WATER UTILITY — Water Quality Report 2026

Serving 29,070 people · Wisconsin

Water Source
Groundwater
County
—
System ID
WI2680253
Violations
171

Contaminant Test Results

3 contaminants above EPA health goals
ContaminantDetectedLimit (MCL)Status
Copper (90th percentile)
1.54 mg/L1.30 mg/LOver Limit
strontium
23634.97 µg/L—Above Goal
Lead (90th percentile)
0.002 mg/L0.015 mg/LAbove Goal

EPA Violation History

4

Violations (last 5yr)

3

Unresolved

0

Health-Related

TIER 3Unresolved

Exceeded the MCL for disinfection byproducts

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

When: January 1, 2024 – December 31, 2024Enforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved

Exceeded the MCL for disinfection byproducts

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

When: January 1, 2024 – December 31, 2024Enforcement: Resolving — corrective action underway
TIER 3Unresolved

Exceeded the MCL for disinfection byproducts

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

When: January 1, 2024 – December 31, 2024Enforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved

Exceeded the MCL for disinfection byproducts

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

When: January 1, 2024 – December 31, 2024Enforcement: Informal — resolved cooperativelyVerify on EPA.gov

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 BROOKFIELD WATER UTILITY

Is BROOKFIELD WATER UTILITY water safe to drink?

BROOKFIELD WATER UTILITY water receives a grade of F (0/100), which is considered failing. 1 contaminant(s) exceed EPA legal limits and 171 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has BROOKFIELD WATER UTILITY detected?

67 contaminants were tested in BROOKFIELD WATER UTILITY's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile), strontium. 1 exceed EPA legal limits (MCLs). 3 exceed EPA health goals (MCLGs).

Does BROOKFIELD WATER UTILITY have any EPA violations?

Yes, BROOKFIELD WATER UTILITY has 171 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, Other, MCL. 32 are health-based violations.

How many people does BROOKFIELD WATER UTILITY serve?

BROOKFIELD WATER UTILITY serves approximately 29,070 people, Wisconsin. The system provides water to 1 community: Brookfield.

What type of water does BROOKFIELD WATER UTILITY provide?

BROOKFIELD WATER UTILITY sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WI2680253.

How does BROOKFIELD WATER UTILITY compare to other utilities in Wisconsin?

BROOKFIELD WATER UTILITY scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Wisconsin state page for a full comparison of water systems.

Cities Served

Brookfield