What was found in Tropic'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 | 200 µg/L 5% of the EPA limit 4000 µg/L Main supplier: RUBYS INN · 700 people · 2018
Highest in the city: 590 µg/L — TROPIC TOWN WATER SYSTEM · 586 people · 2018 | 3/4 | SYR4 |
| Barium | 368 µg/L 18% of the EPA limit 2000 µg/L Main supplier: RUBYS INN · 700 people · 2018 | 3/4 | SYR4 |
| Nitrate | 100 µg/L 1% of the EPA limit 10000 µg/L Main supplier: RUBYS INN · 700 people · 2019
Highest in the city: 200 µg/L — TROPIC TOWN WATER SYSTEM · 586 people · 2019 | 2/4 | SYR4 |
| Copper | 95.1 µg/L 7.3% of the EPA limit 1300 µg/L Main supplier: RUBYS INN · 700 people · 2019
Highest in the city: 169.955 µg/L — TROPIC TOWN WATER SYSTEM · 586 people · 2019 | 4/4 | SYR4 |
| Nitrate-Nitrite | 100 µg/L 1% of the EPA limit 10000 µg/L Main supplier: RUBYS INN · 700 people · 2018 | 1/4 | SYR4 |
| Gross Beta Particle Activity | 3.1 pCi/L No EPA limit set Main supplier: RUBYS INN · 700 people · 2018
Highest in the city: 40.375 pCi/L — HENRIEVILLE TOWN WATER SYSTEM · 221 people · 2019 | 3/4 | SYR4 |
| Lead | 1.84 µg/L 12% of the EPA limit 15 µg/L Main supplier: RUBYS INN · 700 people · 2019
Highest in the city: 8.925 µg/L — BRYCE CANYON NATIONAL PARK · 351 people · 2018 | 4/4 | SYR4 |
| TTHM | 8.85 µg/L 11% of the EPA limit 80 µg/L Highest in the city: BRYCE CANYON NATIONAL PARK · 351 people · 2019 | 3/4 | SYR4 |
| Xylenes, Total | 3.9 µg/L 0% of the EPA limit 10000 µg/L Highest in the city: BRYCE CANYON NATIONAL PARK · 351 people · 2019 | 1/4 | SYR4 |
| Selenium | 1.52 µg/L 3% of the EPA limit 50 µg/L Main supplier: RUBYS INN · 700 people · 2018
Highest in the city: 3.45 µg/L — HENRIEVILLE TOWN WATER SYSTEM · 221 people · 2019 | 3/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 3.06 pCi/L 20% of the EPA limit 15 pCi/L Main supplier: RUBYS INN · 700 people · 2018
Highest in the city: 3.395 pCi/L — HENRIEVILLE TOWN WATER SYSTEM · 221 people · 2019 | 3/4 | SYR4 |
| Bromodichloromethane | 2.985 µg/L No EPA limit set Highest in the city: BRYCE CANYON NATIONAL PARK · 351 people · 2019 | 3/4 | SYR4 |
| Chloroform | 2.785 µg/L No EPA limit set Highest in the city: BRYCE CANYON NATIONAL PARK · 351 people · 2019 | 3/4 | SYR4 |
| Dibromochloromethane | 2.585 µg/L No EPA limit set Highest in the city: BRYCE CANYON NATIONAL PARK · 351 people · 2019 | 3/4 | SYR4 |
| Arsenic | 0.5000 µg/L 5% of the EPA limit 10 µg/L Main supplier: RUBYS INN · 700 people · 2018
Highest in the city: 2.17 µg/L — TROPIC TOWN WATER SYSTEM · 586 people · 2018 | 3/4 | SYR4 |
| Cyanide | 2 µg/L 1% of the EPA limit 200 µg/L Highest in the city: HENRIEVILLE TOWN WATER SYSTEM · 221 people · 2019 | 1/4 | SYR4 |
| Dichloroacetic Acid | 1.4 µg/L No EPA limit set Highest in the city: BRYCE CANYON NATIONAL PARK · 351 people · 2019 | 1/4 | SYR4 |
| Bromoform | 1.26 µg/L No EPA limit set Highest in the city: TROPIC TOWN WATER SYSTEM · 586 people · 2019 | 2/4 | SYR4 |
| Ethylbenzene | 0.6000 µg/L 0.1% of the EPA limit 700 µg/L Highest in the city: BRYCE CANYON NATIONAL PARK · 351 people · 2019 | 1/4 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: RUBYS INN · 700 people · 2024
Highest in the city: 0.0102 mg/L — BRYCE CANYON NATIONAL PARK · 351 people · 2025 | 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 Tropic
| Supplier | Population served |
|---|---|
| RUBYS INN | 700 |
| TROPIC TOWN WATER SYSTEM | 586 |
| BRYCE CANYON NATIONAL PARK | 351 |
| HENRIEVILLE TOWN WATER SYSTEM | 221 |
Frequently asked questions about Tropic tap water
Is Tropic tap water safe to drink?
EPA testing detected 20 contaminants in the water serving Tropic. 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 Tropic?
4 public water suppliers report drinking-water monitoring for Tropic, Utah to the EPA. Each is listed above with its population served.
What contaminants are in Tropic's water?
The contaminants EPA monitoring detected in Tropic include Fluoride, Barium, Nitrate, Copper, Nitrate-Nitrite. 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.