A92/100
JEFFERSON CO CONS PWSD C 1 — Water Quality Report 2026
Serving 37,000 people · Missouri
Water Source
Purchased Surface Water
County
—
System ID
MO6024295
Violations
1
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 281.00 µg/L | — | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2010.
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 JEFFERSON CO CONS PWSD C 1
Is JEFFERSON CO CONS PWSD C 1 water safe to drink?
JEFFERSON CO CONS PWSD C 1 water receives a grade of A (92/100), which is considered excellent. Out of 69 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has JEFFERSON CO CONS PWSD C 1 detected?
69 contaminants were tested in JEFFERSON CO CONS PWSD C 1's water. Notable contaminants include chlorate. No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does JEFFERSON CO CONS PWSD C 1 have any EPA violations?
Yes, JEFFERSON CO CONS PWSD C 1 has 1 EPA violation(s) on record, with the most recent in 2010. Violation types include MCL. 1 are health-based violations.
How many people does JEFFERSON CO CONS PWSD C 1 serve?
JEFFERSON CO CONS PWSD C 1 serves approximately 37,000 people, Missouri.
What type of water does JEFFERSON CO CONS PWSD C 1 provide?
JEFFERSON CO CONS PWSD C 1 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 MO6024295.
How does JEFFERSON CO CONS PWSD C 1 compare to other utilities in Missouri?
JEFFERSON CO CONS PWSD C 1 scores 92/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Missouri state page for a full comparison of water systems.