A84/100
ST CHARLES PARISH DEPT OF WATERWORKS — Water Quality Report 2026
Serving 52,879 people · Louisiana
Water Source
Surface Water
County
—
System ID
LA1089001
Violations
2
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 437.00 µg/L | — | Above Goal |
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 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 ST CHARLES PARISH DEPT OF WATERWORKS
Is ST CHARLES PARISH DEPT OF WATERWORKS water safe to drink?
ST CHARLES PARISH DEPT OF WATERWORKS water receives a grade of A (84/100), which is considered excellent. Out of 69 contaminants tested, none exceed EPA legal limits. 2 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has ST CHARLES PARISH DEPT OF WATERWORKS detected?
69 contaminants were tested in ST CHARLES PARISH DEPT OF WATERWORKS's water. Notable contaminants include Lead (90th percentile), chlorate. No contaminants exceed EPA legal limits. 2 exceed EPA health goals (MCLGs).
Does ST CHARLES PARISH DEPT OF WATERWORKS have any EPA violations?
Yes, ST CHARLES PARISH DEPT OF WATERWORKS has 2 EPA violation(s) on record, with the most recent in 2010. Violation types include MCL. 2 are health-based violations.
How many people does ST CHARLES PARISH DEPT OF WATERWORKS serve?
ST CHARLES PARISH DEPT OF WATERWORKS serves approximately 52,879 people, Louisiana.
What type of water does ST CHARLES PARISH DEPT OF WATERWORKS provide?
ST CHARLES PARISH DEPT OF WATERWORKS 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 LA1089001.
How does ST CHARLES PARISH DEPT OF WATERWORKS compare to other utilities in Louisiana?
ST CHARLES PARISH DEPT OF WATERWORKS scores 84/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Louisiana state page for a full comparison of water systems.