F0/100
TERRE DU LAC — Water Quality Report 2026
Serving 3,200 people · Missouri
Water Source
Groundwater
County
—
System ID
MO4036059
Violations
125
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.004 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2020.
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 TERRE DU LAC
Is TERRE DU LAC water safe to drink?
TERRE DU LAC water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 125 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has TERRE DU LAC detected?
1 contaminants were tested in TERRE DU LAC's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does TERRE DU LAC have any EPA violations?
Yes, TERRE DU LAC has 125 EPA violation(s) on record, with the most recent in 2020. Violation types include Other, MCL, MR. 87 are health-based violations.
How many people does TERRE DU LAC serve?
TERRE DU LAC serves approximately 3,200 people, Missouri.
What type of water does TERRE DU LAC provide?
TERRE DU LAC sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MO4036059.
How does TERRE DU LAC compare to other utilities in Missouri?
TERRE DU LAC scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Missouri state page for a full comparison of water systems.