B70/100
MANAWA WATERWORKS — Water Quality Report 2026
Serving 1,300 people · Wisconsin
Water Source
Groundwater
County
—
System ID
WI4690345
Violations
11
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.90 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.004 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: August 1, 2025 – August 31, 2025Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
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, 2024 – January 18, 2024Rule: Ground Water RuleEnforcement: 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 MANAWA WATERWORKS
Is MANAWA WATERWORKS water safe to drink?
MANAWA WATERWORKS water receives a grade of B (70/100), which is considered good. Out of 28 contaminants tested, 1 exceed EPA legal limits. 2 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has MANAWA WATERWORKS detected?
28 contaminants were tested in MANAWA WATERWORKS's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does MANAWA WATERWORKS have any EPA violations?
Yes, MANAWA WATERWORKS has 11 EPA violation(s) on record, with the most recent in 2025. Violation types include MON, MR, Other. 2 are health-based violations.
How many people does MANAWA WATERWORKS serve?
MANAWA WATERWORKS serves approximately 1,300 people, Wisconsin. The system provides water to 1 community: Manawa.
What type of water does MANAWA WATERWORKS provide?
MANAWA WATERWORKS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WI4690345.
How does MANAWA WATERWORKS compare to other utilities in Wisconsin?
MANAWA WATERWORKS scores 70/100 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.