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F0/100

MCNAIR-STAMPLEY W/A #1 — Water Quality Report 2026

Serving 1,148 people · Mississippi

Water Source
Groundwater
County
—
System ID
MS0320003
Violations
104

Contaminant Test Results

1 contaminant above EPA health goals
ContaminantDetectedLimit (MCL)Status
Lead (90th percentile)
0.002 mg/L0.015 mg/LAbove Goal

EPA Violation History

4

Violations (last 5yr)

4

Unresolved

0

Health-Related

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

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 MCNAIR-STAMPLEY W/A #1

Is MCNAIR-STAMPLEY W/A #1 water safe to drink?

MCNAIR-STAMPLEY W/A #1 water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 104 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has MCNAIR-STAMPLEY W/A #1 detected?

31 contaminants were tested in MCNAIR-STAMPLEY W/A #1's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).

Does MCNAIR-STAMPLEY W/A #1 have any EPA violations?

Yes, MCNAIR-STAMPLEY W/A #1 has 104 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, MON, Other. 7 are health-based violations.

How many people does MCNAIR-STAMPLEY W/A #1 serve?

MCNAIR-STAMPLEY W/A #1 serves approximately 1,148 people, Mississippi.

What type of water does MCNAIR-STAMPLEY W/A #1 provide?

MCNAIR-STAMPLEY W/A #1 sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MS0320003.

How does MCNAIR-STAMPLEY W/A #1 compare to other utilities in Mississippi?

MCNAIR-STAMPLEY W/A #1 scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Mississippi state page for a full comparison of water systems.