D24/100
CITY OF ST MARTINVILLE WATER SYSTEM — Water Quality Report 2026
Serving 7,575 people · Louisiana
Water Source
Groundwater
County
—
System ID
LA1099007
Violations
21
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
4
Violations (last 5yr)
3
Unresolved
4
Health-Related
TIER 2Resolved
Treatment technique violation
When: October 17, 2024 – December 20, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 2Unresolved
Violation related to Consumer Confidence Report
When: November 27, 2023Rule: Consumer Confidence RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Unresolved
Violation related to Consumer Confidence Report
When: November 27, 2023Rule: Consumer Confidence RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Unresolved
Violation related to Consumer Confidence Report
When: February 24, 2023Rule: Consumer Confidence RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
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 CITY OF ST MARTINVILLE WATER SYSTEM
Is CITY OF ST MARTINVILLE WATER SYSTEM water safe to drink?
CITY OF ST MARTINVILLE WATER SYSTEM water receives a grade of D (24/100), which is considered poor. 0 contaminant(s) exceed EPA legal limits and 21 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has CITY OF ST MARTINVILLE WATER SYSTEM detected?
31 contaminants were tested in CITY OF ST MARTINVILLE WATER SYSTEM's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does CITY OF ST MARTINVILLE WATER SYSTEM have any EPA violations?
Yes, CITY OF ST MARTINVILLE WATER SYSTEM has 21 EPA violation(s) on record, with the most recent in 2024. Violation types include TT, MCL, MR. 13 are health-based violations.
How many people does CITY OF ST MARTINVILLE WATER SYSTEM serve?
CITY OF ST MARTINVILLE WATER SYSTEM serves approximately 7,575 people, Louisiana.
What type of water does CITY OF ST MARTINVILLE WATER SYSTEM provide?
CITY OF ST MARTINVILLE WATER SYSTEM sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is LA1099007.
How does CITY OF ST MARTINVILLE WATER SYSTEM compare to other utilities in Louisiana?
CITY OF ST MARTINVILLE WATER SYSTEM scores 24/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our Louisiana state page for a full comparison of water systems.