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Tap water quality report

St Leo, FL

EPA monitoring detected 21 contaminants across the 2 water suppliers serving St Leo. 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.

2
water suppliers
2,751
people served
21
contaminants found
Florida rankings Lead in Florida PFAS in Florida

What was found in St Leo'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
Nitrate
2000 µg/L 20%
of the EPA limit 10000 µg/L
Main supplier: ST. LEO UNIVERSITY · 2,501 people · 2019
2/2 SYR4
Nitrite
1000 µg/L 100%
of the EPA limit 1000 µg/L
Main supplier: ST. LEO UNIVERSITY · 2,501 people · 2019
1/2 SYR4
Fluoride
120 µg/L 3%
of the EPA limit 4000 µg/L
Main supplier: ST. LEO UNIVERSITY · 2,501 people · 2018
Highest in the city: 160 µg/L — ST. LEO ABBEY WATER DEPT · 250 people · 2018
2/2 SYR4
Chromium
43.72 µg/L 44%
of the EPA limit 100 µg/L
Main supplier: ST. LEO UNIVERSITY · 2,501 people · 2018
2/2 SYR4
Barium
17.3 µg/L 0.9%
of the EPA limit 2000 µg/L
Main supplier: ST. LEO UNIVERSITY · 2,501 people · 2018
2/2 SYR4
Copper
15.5 µg/L 1.2%
of the EPA limit 1300 µg/L
Main supplier: ST. LEO UNIVERSITY · 2,501 people · 2018
2/2 SYR4
TTHM
0.7755 µg/L 1%
of the EPA limit 80 µg/L
Main supplier: ST. LEO UNIVERSITY · 2,501 people · 2018
Highest in the city: 10.38 µg/L — ST. LEO ABBEY WATER DEPT · 250 people · 2018
2/2 SYR4
Cyanide
5.5 µg/L 2.8%
of the EPA limit 200 µg/L
Main supplier: ST. LEO UNIVERSITY · 2,501 people · 2018
1/2 SYR4
Lead
3.92 µg/L 26%
of the EPA limit 15 µg/L
Main supplier: ST. LEO UNIVERSITY · 2,501 people · 2018
2/2 SYR4
Antimony, Total
3.73 µg/L 62%
of the EPA limit 6 µg/L
Main supplier: ST. LEO UNIVERSITY · 2,501 people · 2018
2/2 SYR4
Selenium
3.625 µg/L 7.2%
of the EPA limit 50 µg/L
Main supplier: ST. LEO UNIVERSITY · 2,501 people · 2018
2/2 SYR4
Combined Uranium
1.66545 µg/L 5.6%
of the EPA limit 30 µg/L
Main supplier: ST. LEO UNIVERSITY · 2,501 people · 2018
Highest in the city: 3.11336 µg/L — ST. LEO ABBEY WATER DEPT · 250 people · 2015
2/2 SYR4
Arsenic
1.575 µg/L 16%
of the EPA limit 10 µg/L
Main supplier: ST. LEO UNIVERSITY · 2,501 people · 2018
Highest in the city: 2.95 µg/L — ST. LEO ABBEY WATER DEPT · 250 people · 2018
2/2 SYR4
Total Haloacetic Acids (HAA5)
1.687 µg/L 2.8%
of the EPA limit 60 µg/L
Main supplier: ST. LEO UNIVERSITY · 2,501 people · 2018
Highest in the city: 2.551 µg/L — ST. LEO ABBEY WATER DEPT · 250 people · 2018
2/2 SYR4
Dalapon
1.6 µg/L 0.8%
of the EPA limit 200 µg/L
Main supplier: ST. LEO UNIVERSITY · 2,501 people · 2019
1/2 SYR4
Dichloromethane
1.59 µg/L 32%
of the EPA limit 5 µg/L
Main supplier: ST. LEO UNIVERSITY · 2,501 people · 2019
1/2 SYR4
Beryllium, Total
1 µg/L 25%
of the EPA limit 4 µg/L
Main supplier: ST. LEO UNIVERSITY · 2,501 people · 2018
1/2 SYR4
Thallium, Total
0.3550 µg/L 18%
of the EPA limit 2 µg/L
Main supplier: ST. LEO UNIVERSITY · 2,501 people · 2018
1/2 SYR4
Mercury
0.1000 µg/L 5%
of the EPA limit 2 µg/L
Main supplier: ST. LEO UNIVERSITY · 2,501 people · 2018
1/2 SYR4
Hexachlorocyclopentadiene
0.0220 µg/L 0%
of the EPA limit 50 µg/L
Main supplier: ST. LEO UNIVERSITY · 2,501 people · 2019
1/2 SYR4
Lead
0.0025 mg/L 17%
of the EPA limit 0.0150 mg/L
Main supplier: ST. LEO UNIVERSITY · 2,501 people · 2024
Highest in the city: 0.0070 mg/L — ST. LEO ABBEY WATER DEPT · 250 people · 2021
2/2 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 St Leo

SupplierPopulation served
ST. LEO UNIVERSITY 2,501
ST. LEO ABBEY WATER DEPT 250

Frequently asked questions about St Leo tap water

Is St Leo tap water safe to drink?

EPA testing detected 21 contaminants in the water serving St Leo. 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 St Leo?

2 public water suppliers report drinking-water monitoring for St Leo, Florida to the EPA. Each is listed above with its population served.

What contaminants are in St Leo's water?

The contaminants EPA monitoring detected in St Leo include Nitrate, Nitrite, Fluoride, Chromium, Barium. 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.