D37/100
MARSHALL PWS — Water Quality Report 2026
Serving 12,934 people · Missouri
Water Source
Groundwater
County
—
System ID
MO2010502
Violations
13
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 399.00 µg/L | — | Above Goal |
Lead (90th percentile) | 0.004 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2018.
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 MARSHALL PWS
Is MARSHALL PWS water safe to drink?
MARSHALL PWS water receives a grade of D (37/100), which is considered poor. 0 contaminant(s) exceed EPA legal limits and 13 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has MARSHALL PWS detected?
66 contaminants were tested in MARSHALL PWS's water. Notable contaminants include Lead (90th percentile), chlorate. No contaminants exceed EPA legal limits. 2 exceed EPA health goals (MCLGs).
Does MARSHALL PWS have any EPA violations?
Yes, MARSHALL PWS has 13 EPA violation(s) on record, with the most recent in 2018. Violation types include MCL, TT, MR. 11 are health-based violations.
How many people does MARSHALL PWS serve?
MARSHALL PWS serves approximately 12,934 people, Missouri. The system provides water to 1 community: Marshall.
What type of water does MARSHALL PWS provide?
MARSHALL PWS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MO2010502.
How does MARSHALL PWS compare to other utilities in Missouri?
MARSHALL PWS scores 37/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our Missouri state page for a full comparison of water systems.