D25/100
FAIRFIELD WATER SUPPLY — Water Quality Report 2026
Serving 9,821 people · Iowa
Water Source
Groundwater
County
—
System ID
IA5131033
Violations
19
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2013.
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 FAIRFIELD WATER SUPPLY
Is FAIRFIELD WATER SUPPLY water safe to drink?
FAIRFIELD WATER SUPPLY water receives a grade of D (25/100), which is considered poor. 0 contaminant(s) exceed EPA legal limits and 19 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has FAIRFIELD WATER SUPPLY detected?
31 contaminants were tested in FAIRFIELD WATER SUPPLY's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does FAIRFIELD WATER SUPPLY have any EPA violations?
Yes, FAIRFIELD WATER SUPPLY has 19 EPA violation(s) on record, with the most recent in 2013. Violation types include MR, MCL, TT. 14 are health-based violations.
How many people does FAIRFIELD WATER SUPPLY serve?
FAIRFIELD WATER SUPPLY serves approximately 9,821 people, Iowa. The system provides water to 1 community: Fairfield.
What type of water does FAIRFIELD WATER SUPPLY provide?
FAIRFIELD WATER SUPPLY sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IA5131033.
How does FAIRFIELD WATER SUPPLY compare to other utilities in Iowa?
FAIRFIELD WATER SUPPLY scores 25/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our Iowa state page for a full comparison of water systems.