C40/100
MARSHFIELD PWS — Water Quality Report 2026
Serving 7,425 people · Missouri
Water Source
Groundwater
County
—
System ID
MO5010503
Violations
12
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2015.
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 MARSHFIELD PWS
Is MARSHFIELD PWS water safe to drink?
MARSHFIELD PWS water receives a grade of C (40/100), which is considered fair. 0 contaminant(s) exceed EPA legal limits and 12 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has MARSHFIELD PWS detected?
31 contaminants were tested in MARSHFIELD PWS's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does MARSHFIELD PWS have any EPA violations?
Yes, MARSHFIELD PWS has 12 EPA violation(s) on record, with the most recent in 2015. Violation types include MCL. 12 are health-based violations.
How many people does MARSHFIELD PWS serve?
MARSHFIELD PWS serves approximately 7,425 people, Missouri. The system provides water to 1 community: Marshfield.
What type of water does MARSHFIELD PWS provide?
MARSHFIELD PWS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MO5010503.
How does MARSHFIELD PWS compare to other utilities in Missouri?
MARSHFIELD PWS scores 40/100 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.