F2/100
Leonville Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 9,552 residents · Louisiana
What's In Leonville's Tap Water?
31
Contaminants Tested
0
Exceed EPA Limits
0
Above EPA Goals
EPA Violation History
8
Violations (last 5yr)
0
Unresolved
8
Health-Related
TIER 2Resolved
Violation related to Consumer Confidence Report
When: August 2, 2021 – October 11, 2021Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Violation related to Consumer Confidence Report
When: August 2, 2021Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Violation related to Consumer Confidence Report
When: August 2, 2021Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Violation related to Consumer Confidence Report
When: August 2, 2021Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Violation related to Consumer Confidence Report
When: August 2, 2021Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Violation related to Consumer Confidence Report
When: August 2, 2021Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Violation related to Consumer Confidence Report
When: August 2, 2021Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Violation related to Consumer Confidence Report
When: August 2, 2021Rule: Consumer Confidence 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
Water Utility Details
TOWN OF LEONVILLE WATER SYSTEM
Population Served
9,552
Water Source
Groundwater
System ID
LA1097005
Frequently Asked Questions About Leonville Water
Is Leonville tap water safe to drink?
Leonville, Louisiana tap water receives a grade of F (2/100), which is considered failing. 0 contaminant(s) exceed EPA maximum contaminant levels and 30 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Leonville's water?
31 contaminants were tested in Leonville's water supply. No contaminants exceed EPA legal limits (MCLs) or health goals (MCLGs), which is a positive indicator of water quality.
Does Leonville have any water quality violations?
Yes, Leonville has 30 EPA violation(s) on record, with the most recent in 2021. Violation types include TT, Other, MR. 17 of these are health-based violations, which are the most serious category.
Do I need a water filter in Leonville?
Leonville water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. All contaminants are within health goals.
Where does Leonville's tap water come from?
Leonville's drinking water is sourced from groundwater and supplied by TOWN OF LEONVILLE WATER SYSTEM. The system serves approximately 9,552 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Leonville's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Leonville's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Leonville's water compare to other cities in Louisiana?
Leonville's water quality score of 2/100 earns a grade of F, which is considered failing. This is a concerning score that suggests significant water quality issues. Visit our Louisiana state page to see how all cities in the state compare.
What should I do if I'm concerned about Leonville's water quality?
If you have concerns about Leonville's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (TOWN OF LEONVILLE WATER SYSTEM) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.