C42/100
DUENWEG PWS — Water Quality Report 2026
Serving 1,469 people · Missouri
Water Source
Groundwater
County
—
System ID
MO5010227
Violations
15
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Disinfection byproduct treatment technique failure
When: March 26, 2023 – June 8, 2023Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: February 1, 2022 – February 28, 2022Rule: Total Coliform 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 DUENWEG PWS
Is DUENWEG PWS water safe to drink?
DUENWEG PWS water receives a grade of C (42/100), which is considered fair. 0 contaminant(s) exceed EPA legal limits and 15 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has DUENWEG PWS detected?
1 contaminants were tested in DUENWEG PWS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does DUENWEG PWS have any EPA violations?
Yes, DUENWEG PWS has 15 EPA violation(s) on record, with the most recent in 2023. Violation types include Other, MON, MR. 10 are health-based violations.
How many people does DUENWEG PWS serve?
DUENWEG PWS serves approximately 1,469 people, Missouri. The system provides water to 1 community: Duenweg.
What type of water does DUENWEG PWS provide?
DUENWEG PWS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MO5010227.
How does DUENWEG PWS compare to other utilities in Missouri?
DUENWEG PWS scores 42/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our Missouri state page for a full comparison of water systems.