C59/100
WASHINGTON WATER DEPARTMENT — Water Quality Report 2026
Serving 7,362 people · Iowa
Water Source
Groundwater
County
—
System ID
IA9271068
Violations
13
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2020.
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 WASHINGTON WATER DEPARTMENT
Is WASHINGTON WATER DEPARTMENT water safe to drink?
WASHINGTON WATER DEPARTMENT water receives a grade of C (59/100), which is considered fair. 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 WASHINGTON WATER DEPARTMENT detected?
31 contaminants were tested in WASHINGTON WATER DEPARTMENT's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does WASHINGTON WATER DEPARTMENT have any EPA violations?
Yes, WASHINGTON WATER DEPARTMENT has 13 EPA violation(s) on record, with the most recent in 2020. Violation types include MR, MON, Other. 7 are health-based violations.
How many people does WASHINGTON WATER DEPARTMENT serve?
WASHINGTON WATER DEPARTMENT serves approximately 7,362 people, Iowa. The system provides water to 1 community: Washington.
What type of water does WASHINGTON WATER DEPARTMENT provide?
WASHINGTON WATER DEPARTMENT sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IA9271068.
How does WASHINGTON WATER DEPARTMENT compare to other utilities in Iowa?
WASHINGTON WATER DEPARTMENT scores 59/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our Iowa state page for a full comparison of water systems.