F0/100
ALTOONA WATERWORKS — Water Quality Report 2026
Serving 9,627 people · Wisconsin
Water Source
Groundwater
County
—
System ID
WI6180280
Violations
82
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
2
Violations (last 5yr)
1
Unresolved
1
Health-Related
TIER 2Resolved
Treatment technique violation
When: October 17, 2024 – March 13, 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 ALTOONA WATERWORKS
Is ALTOONA WATERWORKS water safe to drink?
ALTOONA WATERWORKS water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 82 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has ALTOONA WATERWORKS detected?
31 contaminants were tested in ALTOONA WATERWORKS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does ALTOONA WATERWORKS have any EPA violations?
Yes, ALTOONA WATERWORKS has 82 EPA violation(s) on record, with the most recent in 2024. Violation types include TT, Other, MR. 12 are health-based violations.
How many people does ALTOONA WATERWORKS serve?
ALTOONA WATERWORKS serves approximately 9,627 people, Wisconsin. The system provides water to 1 community: Altoona.
What type of water does ALTOONA WATERWORKS provide?
ALTOONA WATERWORKS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WI6180280.
How does ALTOONA WATERWORKS compare to other utilities in Wisconsin?
ALTOONA WATERWORKS 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.