Mississippi

Water quality data from the EPA Safe Drinking Water Information System

Lead Risk: Caution

Water Systems

3,209

Active public water systems

Population Served

3.28M

Residents with piped water

Lead Violations

Systems exceeding 15 ppb

Copper Violations

115

Lead & Copper Rule

Average Lead Level

2.12 ppb

EPA Action Level: 15 ppb

MCLG (health goal): 0 ppb

0 ppbAction Level: 15 ppb

Average across 1341 systems with reported lead data.

Violations Detected

133 water systems in Mississippi have reported violations under the Lead and Copper Rule. These utilities are required to notify customers and take corrective action.

18 lead violations115 copper violations

Water Systems: Highest Lead Levels

System Name	City	Population	Lead Level	Status	Sample Date
CITY OF HATTIESBURG	HATTIESBURG	43,449	10.40 ppb	OK	2023-12-31
CITY OF MCCOMB	MCCOMB	12,041	5.60 ppb	OK	2025-12-31
CITY OF NATCHEZ	NATCHEZ	14,520	5.01 ppb	OK	2024-12-31
CITY OF JACKSON	JACKSON	189,673	4.10 ppb	OK	2025-12-31
INGALLS SHIPBUILDING	PASCAGOULA	12,000	3.40 ppb	OK	2024-12-31
BEAR CREEK W/A -EAST	CANTON	18,770	3.20 ppb	OK	2024-12-31
CITY OF LONG BEACH	LONG BEACH	18,514	2.90 ppb	OK	2024-12-31
CITY OF BROOKHAVEN	BROOKHAVEN	12,513	2.70 ppb	OK	2024-12-31
WEST JACKSON CO UTILITY DIST	OCEAN SPRINGS	28,544	2.60 ppb	OK	2024-12-31
NORTH LAUDERDALE W/A, INC	BAILEY	10,544	2.60 ppb	OK	2024-12-31
CLARKSDALE PUBLIC UTILITIES	CLARKSDALE	14,903	2.20 ppb	OK	2024-12-31
CITY OF JACKSON-MADDOX RD.	JACKSON	28,098	2.10 ppb	OK	2025-12-31
CITY OF OCEAN SPRINGS	OCEAN SPRINGS	26,168	2.00 ppb	OK	2024-12-31
SOUTH CENTRAL WATER ASSN	RAYMOND	12,260	2.00 ppb	OK	2024-12-31
PRVWSD-PELAHATCHIE BAY	RIDGELAND	11,790	2.00 ppb	OK	2023-12-31

Showing top 15 of 1325 systems with lead data. Action level: 15 ppb.

Water Source Types

Groundwater2974 (94%)

Purchased Groundwater172 (5%)

Purchased Surface Water16 (1%)

Surface Water6 (0%)

Unknown1 (0%)

Resources

EPA Water Data Reports

Official drinking water data and reports

Lead in Drinking Water

EPA guidance on lead risks and remediation

Learn About Lead Contamination

Health effects, filtering options, and more

Air Quality

Good

Avg AQI

47.9

PM2.5

8.5 µg/m³

Unhealthy Days

Primary Pollutant

PM2.5, Ozone

AQI 0 (Good)AQI 100 (Moderate)200+

Source: EPA AirNow & American Lung Association 2024 State of the Air. AQI scale: 0–50 Good · 51–100 Moderate · 101–150 Sensitive Groups · 151+ Unhealthy.

PFAS Contamination

Moderate Detection

PFAS (per- and polyfluoroalkyl substances), known as “forever chemicals,” are a group of synthetic chemicals that persist indefinitely in the environment and human body. The EPA set a maximum contaminant level (MCL) of 4 parts per trillion (ppt) for PFOA and PFOS in April 2024. View national PFAS tracker →

Systems Tested

148

PFAS Detected

Detection Rate

32.4%

Exceeding MCL (4 ppt)

8(5.4%)

0%Detection rate: 32.4%100%

Highest recorded level: 22 ppt (EPA MCL: 4 ppt). Military installations are primary contamination source

Data source:EPA Safe Drinking Water Information System (SDWIS), Lead and Copper Rule monitoring data. Lead levels represent 90th percentile results from the most recent monitoring period. Violations indicate exceedances of EPA action levels requiring corrective action. This tool is for informational purposes only and does not replace your utility's official Consumer Confidence Report.