A88/100
POLK CITY WATER SUPPLY — Water Quality Report 2026
Serving 6,533 people · Iowa
Water Source
Purchased Surface Water
County
—
System ID
IA7770050
Violations
1
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.62 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2000.
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 POLK CITY WATER SUPPLY
Is POLK CITY WATER SUPPLY water safe to drink?
POLK CITY WATER SUPPLY water receives a grade of A (88/100), which is considered excellent. Out of 32 contaminants tested, 1 exceed EPA legal limits. 2 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has POLK CITY WATER SUPPLY detected?
32 contaminants were tested in POLK CITY WATER SUPPLY's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does POLK CITY WATER SUPPLY have any EPA violations?
Yes, POLK CITY WATER SUPPLY has 1 EPA violation(s) on record, with the most recent in 2000. Violation types include MR.
How many people does POLK CITY WATER SUPPLY serve?
POLK CITY WATER SUPPLY serves approximately 6,533 people, Iowa. The system provides water to 1 community: Polk City.
What type of water does POLK CITY WATER SUPPLY provide?
POLK CITY WATER SUPPLY sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is IA7770050.
How does POLK CITY WATER SUPPLY compare to other utilities in Iowa?
POLK CITY WATER SUPPLY scores 88/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Iowa state page for a full comparison of water systems.