A88/100
REDGRANITE WATERWORKS — Water Quality Report 2026
Serving 2,019 people · Wisconsin
Water Source
Groundwater
County
—
System ID
WI4700269
Violations
5
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2021.
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 REDGRANITE WATERWORKS
Is REDGRANITE WATERWORKS water safe to drink?
REDGRANITE WATERWORKS water receives a grade of A (88/100), which is considered excellent. 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 REDGRANITE WATERWORKS detected?
1 contaminants were tested in REDGRANITE WATERWORKS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does REDGRANITE WATERWORKS have any EPA violations?
Yes, REDGRANITE WATERWORKS has 5 EPA violation(s) on record, with the most recent in 2021. Violation types include MON, Other, MCL. 1 are health-based violations.
How many people does REDGRANITE WATERWORKS serve?
REDGRANITE WATERWORKS serves approximately 2,019 people, Wisconsin. The system provides water to 1 community: Redgranite.
What type of water does REDGRANITE WATERWORKS provide?
REDGRANITE WATERWORKS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WI4700269.
How does REDGRANITE WATERWORKS compare to other utilities in Wisconsin?
REDGRANITE WATERWORKS scores 88/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Wisconsin state page for a full comparison of water systems.