What was found in Hilliard'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 |
|---|---|---|---|
| Fluoride | 1100 µg/L 28% of the EPA limit 4000 µg/L Main supplier: HILLIARD WTP · 3,036 people · 2018 | 3/3 | SYR4 |
| Nitrate | 70 µg/L 0.7% of the EPA limit 10000 µg/L Main supplier: HILLIARD WTP · 3,036 people · 2019
Highest in the city: 100 µg/L — DAYSPRING SENIOR LIVING · 64 people · 2019 | 3/3 | SYR4 |
| TTHM | 81.786 µg/L 102% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: HILLIARD WTP · 3,036 people · 2019
Highest in the city: 95.47 µg/L — DAYSPRING SENIOR LIVING · 64 people · 2018 | 3/3 | SYR4 |
| Nitrite | 52 µg/L 5.2% of the EPA limit 1000 µg/L Highest in the city: DAYSPRING SENIOR LIVING · 64 people · 2019 | 2/3 | SYR4 |
| Barium | 46.35 µg/L 2.3% of the EPA limit 2000 µg/L Main supplier: HILLIARD WTP · 3,036 people · 2018
Highest in the city: 47.175 µg/L — DAYSPRING SENIOR LIVING · 64 people · 2018 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 24.956 µg/L 42% of the EPA limit 60 µg/L Main supplier: HILLIARD WTP · 3,036 people · 2019 | 3/3 | SYR4 |
| Copper | 13.74 µg/L 1.1% of the EPA limit 1300 µg/L Main supplier: HILLIARD WTP · 3,036 people · 2018 | 3/3 | SYR4 |
| Cyanide | 8.605 µg/L 4.3% of the EPA limit 200 µg/L Main supplier: HILLIARD WTP · 3,036 people · 2018 | 1/3 | SYR4 |
| Xylenes, Total | 7.958 µg/L 0.1% of the EPA limit 10000 µg/L Highest in the city: DAYSPRING SENIOR LIVING · 64 people · 2019 | 1/3 | SYR4 |
| Toluene | 4.11 µg/L 0.4% of the EPA limit 1000 µg/L Highest in the city: DAYSPRING SENIOR LIVING · 64 people · 2019 | 1/3 | SYR4 |
| Antimony, Total | 0.9900 µg/L 17% of the EPA limit 6 µg/L Main supplier: HILLIARD WTP · 3,036 people · 2018
Highest in the city: 3 µg/L — DAYSPRING VILLAGE · 121 people · 2018 | 2/3 | SYR4 |
| Selenium | 1.17 µg/L 2.3% of the EPA limit 50 µg/L Main supplier: HILLIARD WTP · 3,036 people · 2018
Highest in the city: 2.2 µg/L — DAYSPRING SENIOR LIVING · 64 people · 2018 | 3/3 | SYR4 |
| Chromium | 1.77 µg/L 1.8% of the EPA limit 100 µg/L Main supplier: HILLIARD WTP · 3,036 people · 2018 | 3/3 | SYR4 |
| Dalapon | 0.7115 µg/L 0.4% of the EPA limit 200 µg/L Main supplier: HILLIARD WTP · 3,036 people · 2019
Highest in the city: 1.1 µg/L — DAYSPRING SENIOR LIVING · 64 people · 2018 | 3/3 | SYR4 |
| Ethylbenzene | 0.9500 µg/L 0.1% of the EPA limit 700 µg/L Highest in the city: DAYSPRING SENIOR LIVING · 64 people · 2019 | 1/3 | SYR4 |
| Arsenic | 0.8000 µg/L 8% of the EPA limit 10 µg/L Highest in the city: DAYSPRING VILLAGE · 121 people · 2018 | 1/3 | SYR4 |
| Lead | 0.5000 µg/L 3.3% of the EPA limit 15 µg/L Main supplier: HILLIARD WTP · 3,036 people · 2018 | 2/3 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.3200 µg/L 5.3% of the EPA limit 6 µg/L Highest in the city: DAYSPRING VILLAGE · 121 people · 2018 | 1/3 | SYR4 |
| Methoxychlor | 0.2270 µg/L 0.6% of the EPA limit 40 µg/L Highest in the city: DAYSPRING SENIOR LIVING · 64 people · 2019 | 1/3 | SYR4 |
| Mercury | 0.2000 µg/L 10% of the EPA limit 2 µg/L Main supplier: HILLIARD WTP · 3,036 people · 2018 | 1/3 | SYR4 |
| Combined Uranium | 0.1404 µg/L 0.5% of the EPA limit 30 µg/L Main supplier: HILLIARD WTP · 3,036 people · 2018 | 1/3 | SYR4 |
| Cadmium | 0.1000 µg/L 2% of the EPA limit 5 µg/L Highest in the city: DAYSPRING VILLAGE · 121 people · 2018 | 1/3 | SYR4 |
| Bhc-Gamma | 0.0990 µg/L 50% of the EPA limit 0.2000 µg/L Highest in the city: DAYSPRING SENIOR LIVING · 64 people · 2019 | 1/3 | SYR4 |
| Hexachlorocyclopentadiene | 0.0350 µg/L 0.1% of the EPA limit 50 µg/L Highest in the city: DAYSPRING SENIOR LIVING · 64 people · 2018 | 1/3 | SYR4 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: HILLIARD WTP · 3,036 people · 2023 | 3/3 | 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 Hilliard
| Supplier | Population served |
|---|---|
| HILLIARD WTP | 3,036 |
| DAYSPRING VILLAGE | 121 |
| DAYSPRING SENIOR LIVING | 64 |
Frequently asked questions about Hilliard tap water
Is Hilliard tap water safe to drink?
EPA testing detected 25 contaminants in the water serving Hilliard. 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 Hilliard?
3 public water suppliers report drinking-water monitoring for Hilliard, Florida to the EPA. Each is listed above with its population served.
What contaminants are in Hilliard's water?
The contaminants EPA monitoring detected in Hilliard include Fluoride, Nitrate, TTHM, Nitrite, 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.