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Tap water quality report

Mary Esther, FL

EPA monitoring detected 11 contaminants across the 1 water supplier serving Mary Esther. 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.

1
water supplier
4,013
people served
11
contaminants found
Florida rankings Lead in Florida PFAS in Florida

What was found in Mary Esther'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
Fluoride
1100 µg/L 28%
of the EPA limit 4000 µg/L
Main supplier: MARY ESTHER, CITY OF · 4,013 people · 2017
1/1 SYR4
Barium
412.5 µg/L 21%
of the EPA limit 2000 µg/L
Main supplier: MARY ESTHER, CITY OF · 4,013 people · 2017
1/1 SYR4
Nitrate
342.5 µg/L 3.4%
of the EPA limit 10000 µg/L
Main supplier: MARY ESTHER, CITY OF · 4,013 people · 2019
1/1 SYR4
TTHM
52.57 µg/L 66%
of the EPA limit 80 µg/L
Main supplier: MARY ESTHER, CITY OF · 4,013 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
24.126 µg/L 40%
of the EPA limit 60 µg/L
Main supplier: MARY ESTHER, CITY OF · 4,013 people · 2019
1/1 SYR4
Lithium
19.1 µg/L
No EPA limit set
Main supplier: MARY ESTHER, CITY OF · 4,013 people · 2025
1/1 UCMR-5
Copper
17.9 µg/L 1.4%
of the EPA limit 1300 µg/L
Main supplier: MARY ESTHER, CITY OF · 4,013 people · 2017
1/1 SYR4
Nitrite
10 µg/L 1%
of the EPA limit 1000 µg/L
Main supplier: MARY ESTHER, CITY OF · 4,013 people · 2019
1/1 SYR4
Lead
1.3 µg/L 8.7%
of the EPA limit 15 µg/L
Main supplier: MARY ESTHER, CITY OF · 4,013 people · 2017
1/1 SYR4
Beryllium, Total
0.9000 µg/L 23%
of the EPA limit 4 µg/L
Main supplier: MARY ESTHER, CITY OF · 4,013 people · 2017
1/1 SYR4
Lead
0.0021 mg/L 14%
of the EPA limit 0.0150 mg/L
Main supplier: MARY ESTHER, CITY OF · 4,013 people · 2023
1/1 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 Mary Esther

SupplierPopulation served
MARY ESTHER, CITY OF 4,013

Frequently asked questions about Mary Esther tap water

Is Mary Esther tap water safe to drink?

EPA testing detected 11 contaminants in the water serving Mary Esther. 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 Mary Esther?

1 public water supplier report drinking-water monitoring for Mary Esther, Florida to the EPA. Each is listed above with its population served.

What contaminants are in Mary Esther's water?

The contaminants EPA monitoring detected in Mary Esther include Fluoride, Barium, Nitrate, TTHM, Total Haloacetic Acids (HAA5). 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.