A91/100
KNOXVILLE WATER WORKS — Water Quality Report 2026
Serving 8,400 people · Iowa
Water Source
Groundwater
County
—
System ID
IA6342036
Violations
2
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.008 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 1992.
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 KNOXVILLE WATER WORKS
Is KNOXVILLE WATER WORKS water safe to drink?
KNOXVILLE WATER WORKS water receives a grade of A (91/100), which is considered excellent. Out of 31 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has KNOXVILLE WATER WORKS detected?
31 contaminants were tested in KNOXVILLE WATER WORKS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does KNOXVILLE WATER WORKS have any EPA violations?
Yes, KNOXVILLE WATER WORKS has 2 EPA violation(s) on record, with the most recent in 1992. Violation types include MR, MCL. 1 are health-based violations.
How many people does KNOXVILLE WATER WORKS serve?
KNOXVILLE WATER WORKS serves approximately 8,400 people, Iowa. The system provides water to 1 community: Knoxville.
What type of water does KNOXVILLE WATER WORKS provide?
KNOXVILLE WATER WORKS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IA6342036.
How does KNOXVILLE WATER WORKS compare to other utilities in Iowa?
KNOXVILLE WATER WORKS scores 91/100 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.