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Tap water quality report

Biloxi, MS

EPA monitoring detected 3 contaminants across the 6 water suppliers serving Biloxi. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

6
water suppliers
47,121
people served
3
contaminants found
Mississippi rankings Lead in Mississippi PFAS in Mississippi

What was found in Biloxi's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Lithium
17.4 µg/L
No EPA limit set
Main supplier: CITY OF BILOXI · 23,310 people · 2024
Highest in the city: 38.3 µg/L — KEESLER AIR FORCE BASE · 8,006 people · 2025
3/6 UCMR-5
PFOS
0.0077 µg/L
No EPA limit set
Highest in the city: KEESLER AIR FORCE BASE · 8,006 people · 2025
1/6 UCMR-5
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
Main supplier: CITY OF BILOXI · 23,310 people · 2024
Highest in the city: 0.0019 mg/L — KEESLER AIR FORCE BASE · 8,006 people · 2023
6/6 LCR
Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Biloxi

SupplierPopulation served
CITY OF BILOXI 23,310
CITY OF BILOXI-NORTH 9,858
KEESLER AIR FORCE BASE 8,006
CITY OF BILOXI-FRENCH 4,968
ECHCPUD-TRADITION SUBDIVISION 557
CEDAR LAKE BILOXI, LLC 422

Frequently asked questions about Biloxi tap water

Is Biloxi tap water safe to drink?

EPA testing detected 3 contaminants in the water serving Biloxi. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Biloxi?

6 public water suppliers report drinking-water monitoring for Biloxi, Mississippi to the EPA. Each is listed above with its population served.

What contaminants are in Biloxi's water?

The contaminants EPA monitoring detected in Biloxi include Lithium, PFOS, Lead. The full list, with the level at the main supplier and the data source, is in the table above.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.