TapSafetyReport
F5/100

Lexington Tap Water Quality: Is It Safe to Drink? (2026 Report)

Serving 7,587 residents · Mississippi

What's In Lexington's Tap Water?

1
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
ContaminantDetectedLimit (MCL)Status
Lead (90th percentile)
< 0.001 mg/L0.015 mg/LAbove Goal

EPA Violation History

8

Violations (last 5yr)

4

Unresolved

1

Health-Related

TIER 3Resolved

Reporting violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: October 17, 2024 – December 16, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved

Treatment technique violation

When: October 17, 2024 – December 16, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Disinfection byproduct treatment technique failure

When: January 5, 2024 – October 1, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Unresolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: January 1, 2024 – December 31, 2024Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: January 1, 2024 – December 31, 2024Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: January 1, 2023 – December 31, 2023Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: January 1, 2023 – December 31, 2023Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved

Monitoring Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: November 1, 2022 – November 30, 2022Rule: Total Coliform 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

ACONA WATER ASSOCIATION #1
Population Served

1,373

Water Source

Groundwater

System ID

MS0260001

LEBANON W/A-WEST
Population Served

1,742

Water Source

Groundwater

System ID

MS0260011

CITY OF LEXINGTON
Population Served

1,600

Water Source

Groundwater

System ID

MS0260012

SWEET HOME WATER & SEWER DIST
Population Served

1,695

Water Source

Groundwater

System ID

MS0260015

HARLAND CREEK COMMUNITY W/A-B
Population Served

1,177

Water Source

Groundwater

System ID

MS0260022

Frequently Asked Questions About Lexington Water

Is Lexington tap water safe to drink?

Lexington, Mississippi tap water receives a grade of F (5/100), which is considered failing. 0 contaminant(s) exceed EPA maximum contaminant levels and 793 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.

What contaminants are in Lexington's water?

Of the 27 contaminants tested in Lexington's water supply, the most notable include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.

Does Lexington have any water quality violations?

Yes, Lexington has 793 EPA violation(s) on record, with the most recent in 2025. Violation types include MON, MR, RPT. 13 of these are health-based violations, which are the most serious category.

Do I need a water filter in Lexington?

Lexington 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. 1 contaminant(s) exceed these stricter goals.

Where does Lexington's tap water come from?

Lexington's drinking water is sourced from groundwater and supplied by ACONA WATER ASSOCIATION #1 and 4 other water system(s). The system serves approximately 7,587 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.

How often is Lexington'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. Lexington'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 Lexington's water compare to other cities in Mississippi?

Lexington's water quality score of 5/100 earns a grade of F, which is considered failing. This is a concerning score that suggests significant water quality issues. Visit our Mississippi state page to see how all cities in the state compare.

What should I do if I'm concerned about Lexington's water quality?

If you have concerns about Lexington'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 (ACONA WATER ASSOCIATION #1) 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.

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