A94/100
WATER DISTRICT 1 OF JOHNSON CO — Water Quality Report 2026
Serving 482,000 people · Kansas
Water Source
Surface Water
County
—
System ID
KS2009110
Violations
3
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.006 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2002.
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 WATER DISTRICT 1 OF JOHNSON CO
Is WATER DISTRICT 1 OF JOHNSON CO water safe to drink?
WATER DISTRICT 1 OF JOHNSON CO water receives a grade of A (94/100), which is considered excellent. Out of 76 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has WATER DISTRICT 1 OF JOHNSON CO detected?
76 contaminants were tested in WATER DISTRICT 1 OF JOHNSON CO's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does WATER DISTRICT 1 OF JOHNSON CO have any EPA violations?
Yes, WATER DISTRICT 1 OF JOHNSON CO has 3 EPA violation(s) on record, with the most recent in 2002. Violation types include MR, Other.
How many people does WATER DISTRICT 1 OF JOHNSON CO serve?
WATER DISTRICT 1 OF JOHNSON CO serves approximately 482,000 people, Kansas. The system provides water to 1 community: Kansas City.
What type of water does WATER DISTRICT 1 OF JOHNSON CO provide?
WATER DISTRICT 1 OF JOHNSON CO sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is KS2009110.
How does WATER DISTRICT 1 OF JOHNSON CO compare to other utilities in Kansas?
WATER DISTRICT 1 OF JOHNSON CO scores 94/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Kansas state page for a full comparison of water systems.