A82/100
MOSCOW MILLS PWS — Water Quality Report 2026
Serving 4,500 people · Missouri
Water Source
Groundwater
County
—
System ID
MO6010547
Violations
10
Contaminant Test Results
EPA Violation History
5
Violations (last 5yr)
2
Unresolved
1
Health-Related
TIER 3Unresolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
TIER 3Unresolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
TIER 3Resolved
Disinfection byproduct treatment technique failure
When: December 14, 2023 – January 31, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Failed treatment technique requirements
When: February 1, 2023 – February 28, 2023Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Failed to issue ongoing public notification
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: November 1, 2022 – September 27, 2023Rule: 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 MOSCOW MILLS PWS
Is MOSCOW MILLS PWS water safe to drink?
MOSCOW MILLS PWS water receives a grade of A (82/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has MOSCOW MILLS PWS detected?
1 contaminants were tested in MOSCOW MILLS PWS's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does MOSCOW MILLS PWS have any EPA violations?
Yes, MOSCOW MILLS PWS has 10 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, Other, TT. 2 are health-based violations.
How many people does MOSCOW MILLS PWS serve?
MOSCOW MILLS PWS serves approximately 4,500 people, Missouri. The system provides water to 1 community: Moscow Mills.
What type of water does MOSCOW MILLS PWS provide?
MOSCOW MILLS PWS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MO6010547.
How does MOSCOW MILLS PWS compare to other utilities in Missouri?
MOSCOW MILLS PWS scores 82/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Missouri state page for a full comparison of water systems.