C44/100
MALDEN PWS — Water Quality Report 2026
Serving 3,706 people · Missouri
Water Source
Groundwater
County
—
System ID
MO4010490
Violations
17
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
1
Unresolved
1
Health-Related
TIER 1 — URGENTResolved
Maximum Contaminant Level Violation
When: September 1, 2025 – September 26, 2025Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Unresolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
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 MALDEN PWS
Is MALDEN PWS water safe to drink?
MALDEN PWS water receives a grade of C (44/100), which is considered fair. 0 contaminant(s) exceed EPA legal limits and 17 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has MALDEN PWS detected?
31 contaminants were tested in MALDEN PWS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does MALDEN PWS have any EPA violations?
Yes, MALDEN PWS has 17 EPA violation(s) on record, with the most recent in 2025. Violation types include MCL, MR, Other. 9 are health-based violations.
How many people does MALDEN PWS serve?
MALDEN PWS serves approximately 3,706 people, Missouri. The system provides water to 1 community: Malden.
What type of water does MALDEN PWS provide?
MALDEN PWS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MO4010490.
How does MALDEN PWS compare to other utilities in Missouri?
MALDEN PWS scores 44/100 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.