F0/100
ST JOHN WATER DISTRICT 1 — Water Quality Report 2026
Serving 10,484 people · Louisiana
Water Source
Surface Water
County
—
System ID
LA1095003
Violations
68
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 454.00 µg/L | — | Above Goal |
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: September 27, 2024 – February 28, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
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 JOHN WATER DISTRICT 1
Is ST JOHN WATER DISTRICT 1 water safe to drink?
ST JOHN WATER DISTRICT 1 water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 68 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has ST JOHN WATER DISTRICT 1 detected?
69 contaminants were tested in ST JOHN WATER DISTRICT 1's water. Notable contaminants include Lead (90th percentile), chlorate. No contaminants exceed EPA legal limits. 2 exceed EPA health goals (MCLGs).
Does ST JOHN WATER DISTRICT 1 have any EPA violations?
Yes, ST JOHN WATER DISTRICT 1 has 68 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, TT, Other. 55 are health-based violations.
How many people does ST JOHN WATER DISTRICT 1 serve?
ST JOHN WATER DISTRICT 1 serves approximately 10,484 people, Louisiana.
What type of water does ST JOHN WATER DISTRICT 1 provide?
ST JOHN WATER DISTRICT 1 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 LA1095003.
How does ST JOHN WATER DISTRICT 1 compare to other utilities in Louisiana?
ST JOHN WATER DISTRICT 1 scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Louisiana state page for a full comparison of water systems.