What was found in Polk City'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.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 1540 µg/L 15% of the EPA limit 10000 µg/L Main supplier: MOUNT OLIVE ESTATES · 2,724 people · 2019
Highest in the city: 1940 µg/L — LELYNN RV RESORT · 350 people · 2019 | 4/4 | SYR4 |
| Fluoride | 281 µg/L 7% of the EPA limit 4000 µg/L Main supplier: MOUNT OLIVE ESTATES · 2,724 people · 2018 | 4/4 | SYR4 |
| Nitrite | 127.3 µg/L 13% of the EPA limit 1000 µg/L Highest in the city: LELYNN RV RESORT · 350 people · 2019 | 1/4 | SYR4 |
| Chromium | 64.7 µg/L 65% of the EPA limit 100 µg/L Highest in the city: POLK CORRECTIONAL INSTITUTION · 1,500 people · 2018 | 3/4 | SYR4 |
| Barium | 5.35 µg/L 0.3% of the EPA limit 2000 µg/L Main supplier: MOUNT OLIVE ESTATES · 2,724 people · 2018
Highest in the city: 47.03 µg/L — LELYNN RV RESORT · 350 people · 2018 | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 10.58 µg/L 18% of the EPA limit 60 µg/L Main supplier: MOUNT OLIVE ESTATES · 2,724 people · 2019
Highest in the city: 34.7235 µg/L — POLK CITY SYSTEM · 2,568 people · 2019 | 4/4 | SYR4 |
| TTHM | 34.264 µg/L 43% of the EPA limit 80 µg/L Main supplier: MOUNT OLIVE ESTATES · 2,724 people · 2019 | 4/4 | SYR4 |
| Glyphosate | 27 µg/L 3.9% of the EPA limit 700 µg/L Highest in the city: POLK CITY SYSTEM · 2,568 people · 2019 | 1/4 | SYR4 |
| Selenium | 1.4 µg/L 2.8% of the EPA limit 50 µg/L Main supplier: MOUNT OLIVE ESTATES · 2,724 people · 2018
Highest in the city: 24.84 µg/L — POLK CORRECTIONAL INSTITUTION · 1,500 people · 2018 | 4/4 | SYR4 |
| Copper | 9.7 µg/L 0.7% of the EPA limit 1300 µg/L Main supplier: MOUNT OLIVE ESTATES · 2,724 people · 2018 | 4/4 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 2.3 µg/L 38% of the EPA limit 6 µg/L Main supplier: MOUNT OLIVE ESTATES · 2,724 people · 2019
Highest in the city: 6.55 µg/L — POLK CORRECTIONAL INSTITUTION · 1,500 people · 2019 | 3/4 | SYR4 |
| Arsenic | 2.895 µg/L 29% of the EPA limit 10 µg/L Main supplier: MOUNT OLIVE ESTATES · 2,724 people · 2018
Highest in the city: 3.175 µg/L — POLK CITY SYSTEM · 2,568 people · 2018 | 4/4 | SYR4 |
| Combined Uranium | 0.6906 µg/L 2.3% of the EPA limit 30 µg/L Main supplier: MOUNT OLIVE ESTATES · 2,724 people · 2018
Highest in the city: 3.10665 µg/L — POLK CITY SYSTEM · 2,568 people · 2015 | 4/4 | SYR4 |
| Lead | 0.1000 µg/L 0.7% of the EPA limit 15 µg/L Main supplier: MOUNT OLIVE ESTATES · 2,724 people · 2018
Highest in the city: 1.905 µg/L — POLK CITY SYSTEM · 2,568 people · 2018 | 2/4 | SYR4 |
| Beryllium, Total | 1 µg/L 25% of the EPA limit 4 µg/L Highest in the city: POLK CITY SYSTEM · 2,568 people · 2018 | 1/4 | SYR4 |
| Cadmium | 0.9650 µg/L 19% of the EPA limit 5 µg/L Main supplier: MOUNT OLIVE ESTATES · 2,724 people · 2018 | 1/4 | SYR4 |
| Thallium, Total | 0.2900 µg/L 14% of the EPA limit 2 µg/L Main supplier: MOUNT OLIVE ESTATES · 2,724 people · 2018
Highest in the city: 0.5000 µg/L — POLK CITY SYSTEM · 2,568 people · 2018 | 2/4 | SYR4 |
| Antimony, Total | 0.4950 µg/L 8.3% of the EPA limit 6 µg/L Main supplier: MOUNT OLIVE ESTATES · 2,724 people · 2018 | 2/4 | SYR4 |
| Toluene | 0.4900 µg/L 0% of the EPA limit 1000 µg/L Highest in the city: LELYNN RV RESORT · 350 people · 2018 | 1/4 | SYR4 |
| Diquat | 0.3100 µg/L 1.6% of the EPA limit 20 µg/L Highest in the city: POLK CORRECTIONAL INSTITUTION · 1,500 people · 2018 | 1/4 | SYR4 |
| Xylenes, Total | 0.3000 µg/L 0% of the EPA limit 10000 µg/L Highest in the city: LELYNN RV RESORT · 350 people · 2018 | 1/4 | SYR4 |
| Lead | 0.00060 mg/L 4% of the EPA limit 0.0150 mg/L Main supplier: MOUNT OLIVE ESTATES · 2,724 people · 2024
Highest in the city: 0.0011 mg/L — POLK CITY SYSTEM · 2,568 people · 2024 | 4/4 | 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 Polk City
| Supplier | Population served |
|---|---|
| MOUNT OLIVE ESTATES | 2,724 |
| POLK CITY SYSTEM | 2,568 |
| POLK CORRECTIONAL INSTITUTION | 1,500 |
| LELYNN RV RESORT | 350 |
Frequently asked questions about Polk City tap water
Is Polk City tap water safe to drink?
EPA testing detected 22 contaminants in the water serving Polk City. 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 Polk City?
4 public water suppliers report drinking-water monitoring for Polk City, Florida to the EPA. Each is listed above with its population served.
What contaminants are in Polk City's water?
The contaminants EPA monitoring detected in Polk City include Nitrate, Fluoride, Nitrite, 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.