F0/100
Mansfield Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 16,854 residents · Louisiana
What's In Mansfield's Tap Water?
34
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
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
6
Violations (last 5yr)
1
Unresolved
5
Health-Related
TIER 2Unresolved
Failed treatment technique requirements
When: August 1, 2025 – August 31, 2025Rule: Surface Water Treatment RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Resolved
Failed treatment technique requirements
When: September 1, 2024 – September 30, 2024Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Failed treatment technique requirements
When: January 1, 2024 – January 31, 2024Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Disinfection byproduct treatment technique failure
When: October 27, 2023 – December 6, 2023Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Failed treatment technique requirements
When: October 1, 2023 – October 31, 2023Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Failed treatment technique requirements
When: August 1, 2023 – August 31, 2023Rule: Surface Water Treatment 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
EAST DESOTO WATER SYSTEM
Population Served
1,455
Water Source
Groundwater
System ID
LA1031005
MANSFIELD WATER SYSTEM
Population Served
7,512
Water Source
Surface Water
System ID
LA1031009
DESOTO PARISH WATER WORKS DISTRICT 1
Population Served
7,887
Water Source
Surface Water
System ID
LA1031030
Frequently Asked Questions About Mansfield Water
Is Mansfield tap water safe to drink?
Mansfield, Louisiana tap water receives a grade of F (0/100), which is considered failing. 1 contaminant(s) exceed EPA maximum contaminant levels and 177 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Mansfield's water?
Of the 35 contaminants tested in Mansfield's water supply, the most notable include Copper (90th percentile), Lead (90th percentile). 1 contaminant(s) exceed EPA legal limits (MCLs). 2 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Mansfield have any water quality violations?
Yes, Mansfield has 177 EPA violation(s) on record, with the most recent in 2025. Violation types include TT, MCL, MR. 109 of these are health-based violations, which are the most serious category.
Do I need a water filter in Mansfield?
Based on EPA data, using a water filter in Mansfield is recommended. 1 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.
Where does Mansfield's tap water come from?
Mansfield's drinking water is sourced from groundwater and supplied by EAST DESOTO WATER SYSTEM and 2 other water system(s). The system serves approximately 16,854 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Mansfield'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. Mansfield'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 Mansfield's water compare to other cities in Louisiana?
Mansfield's water quality score of 0/100 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 Mansfield's water quality?
If you have concerns about Mansfield'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 (EAST DESOTO 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.