A88/100
JOHNSON CO RWD 7 — Water Quality Report 2026
Serving 6,457 people · Kansas
Water Source
Purchased Surface Water
County
—
System ID
KS2009104
Violations
5
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2014.
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 JOHNSON CO RWD 7
Is JOHNSON CO RWD 7 water safe to drink?
JOHNSON CO RWD 7 water receives a grade of A (88/100), which is considered excellent. Out of 38 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has JOHNSON CO RWD 7 detected?
38 contaminants were tested in JOHNSON CO RWD 7's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does JOHNSON CO RWD 7 have any EPA violations?
Yes, JOHNSON CO RWD 7 has 5 EPA violation(s) on record, with the most recent in 2014. Violation types include MR, Other, MCL. 1 are health-based violations.
How many people does JOHNSON CO RWD 7 serve?
JOHNSON CO RWD 7 serves approximately 6,457 people, Kansas. The system provides water to 1 community: Gardner.
What type of water does JOHNSON CO RWD 7 provide?
JOHNSON CO RWD 7 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 KS2009104.
How does JOHNSON CO RWD 7 compare to other utilities in Kansas?
JOHNSON CO RWD 7 scores 88/100 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.