What was found in St George 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-Nitrite | 5350 µg/L 54% of the EPA limit 10000 µg/L Main supplier: ST GEORGE CITY WATER SYSTEM · 105,240 people · 2018 | 1/1 | SYR4 |
| Fluoride | 2060 µg/L 52% of the EPA limit 4000 µg/L Main supplier: ST GEORGE CITY WATER SYSTEM · 105,240 people · 2018 | 1/1 | SYR4 |
| Nitrate | 870 µg/L 8.7% of the EPA limit 10000 µg/L Main supplier: ST GEORGE CITY WATER SYSTEM · 105,240 people · 2019 | 1/1 | SYR4 |
| Barium | 276.5 µg/L 14% of the EPA limit 2000 µg/L Main supplier: ST GEORGE CITY WATER SYSTEM · 105,240 people · 2018 | 1/1 | SYR4 |
| Lithium | 180 µg/L No EPA limit set Main supplier: ST GEORGE CITY WATER SYSTEM · 105,240 people · 2024 | 1/1 | UCMR-5 |
| Copper | 168 µg/L 13% of the EPA limit 1300 µg/L Main supplier: ST GEORGE CITY WATER SYSTEM · 105,240 people · 2018 | 1/1 | SYR4 |
| TTHM | 59.775 µg/L 75% of the EPA limit 80 µg/L Main supplier: ST GEORGE CITY WATER SYSTEM · 105,240 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 19.415 µg/L 32% of the EPA limit 60 µg/L Main supplier: ST GEORGE CITY WATER SYSTEM · 105,240 people · 2019 | 1/1 | SYR4 |
| Arsenic | 19 µg/L 190% of the EPA limit, at the 95th percentile of samples — 10 µg/L Main supplier: ST GEORGE CITY WATER SYSTEM · 105,240 people · 2019 | 1/1 | SYR4 |
| Cyanide | 8.7 µg/L 4.4% of the EPA limit 200 µg/L Main supplier: ST GEORGE CITY WATER SYSTEM · 105,240 people · 2018 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 7.33 pCi/L 49% of the EPA limit 15 pCi/L Main supplier: ST GEORGE CITY WATER SYSTEM · 105,240 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 6.26 µg/L No EPA limit set Main supplier: ST GEORGE CITY WATER SYSTEM · 105,240 people · 2018 | 1/1 | SYR4 |
| Dibromochloromethane | 5.91 µg/L No EPA limit set Main supplier: ST GEORGE CITY WATER SYSTEM · 105,240 people · 2018 | 1/1 | SYR4 |
| Chloroform | 5.731 µg/L No EPA limit set Main supplier: ST GEORGE CITY WATER SYSTEM · 105,240 people · 2018 | 1/1 | SYR4 |
| Bromoform | 5.465 µg/L No EPA limit set Main supplier: ST GEORGE CITY WATER SYSTEM · 105,240 people · 2018 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 5.005 pCi/L No EPA limit set Main supplier: ST GEORGE CITY WATER SYSTEM · 105,240 people · 2016 | 1/1 | SYR4 |
| Lead | 4.56 µg/L 30% of the EPA limit 15 µg/L Main supplier: ST GEORGE CITY WATER SYSTEM · 105,240 people · 2018 | 1/1 | SYR4 |
| Combined Uranium | 4.12 µg/L 14% of the EPA limit 30 µg/L Main supplier: ST GEORGE CITY WATER SYSTEM · 105,240 people · 2016 | 1/1 | SYR4 |
| Chromium | 3.59 µg/L 3.6% of the EPA limit 100 µg/L Main supplier: ST GEORGE CITY WATER SYSTEM · 105,240 people · 2018 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 1.8 pCi/L 36% of the EPA limit 5 pCi/L Main supplier: ST GEORGE CITY WATER SYSTEM · 105,240 people · 2019 | 1/1 | SYR4 |
| Antimony, Total | 1.16 µg/L 19% of the EPA limit 6 µg/L Main supplier: ST GEORGE CITY WATER SYSTEM · 105,240 people · 2018 | 1/1 | SYR4 |
| Selenium | 0.8610 µg/L 1.7% of the EPA limit 50 µg/L Main supplier: ST GEORGE CITY WATER SYSTEM · 105,240 people · 2018 | 1/1 | SYR4 |
| Thallium, Total | 0.5160 µg/L 26% of the EPA limit 2 µg/L Main supplier: ST GEORGE CITY WATER SYSTEM · 105,240 people · 2018 | 1/1 | SYR4 |
| Chlorobenzene | 0.5000 µg/L 0.5% of the EPA limit 100 µg/L Main supplier: ST GEORGE CITY WATER SYSTEM · 105,240 people · 2019 | 1/1 | SYR4 |
| Bhc-Gamma | 0.0130 µg/L 6.5% of the EPA limit 0.2000 µg/L Main supplier: ST GEORGE CITY WATER SYSTEM · 105,240 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0014 mg/L 9.3% of the EPA limit 0.0150 mg/L Main supplier: ST GEORGE CITY WATER SYSTEM · 105,240 people · 2024 | 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 St George City
| Supplier | Population served |
|---|---|
| ST GEORGE CITY WATER SYSTEM | 105,240 |
Frequently asked questions about St George City tap water
Is St George City tap water safe to drink?
EPA testing detected 26 contaminants in the water serving St George 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 St George City?
1 public water supplier report drinking-water monitoring for St George City, Utah to the EPA. Each is listed above with its population served.
What contaminants are in St George City's water?
The contaminants EPA monitoring detected in St George City include Nitrate-Nitrite, Fluoride, Nitrate, Barium, Lithium. 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.