What was found in Monticello'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 | 390 µg/L 9.8% of the EPA limit 4000 µg/L Main supplier: MONTICELLO CITY · 2,393 people · 2014
Highest in the city: 2360 µg/L — EASTLAND SPECIAL SERVICE DISTRICT · 90 people · 2019 | 4/4 | SYR4 |
| Nitrate | 200 µg/L 2% of the EPA limit 10000 µg/L Main supplier: MONTICELLO CITY · 2,393 people · 2019
Highest in the city: 809 µg/L — ROCKLAND RANCH · 175 people · 2019 | 3/4 | SYR4 |
| Nitrate-Nitrite | 200 µg/L 2% of the EPA limit 10000 µg/L Main supplier: MONTICELLO CITY · 2,393 people · 2014
Highest in the city: 800 µg/L — ROCKLAND RANCH · 175 people · 2013 | 2/4 | SYR4 |
| Barium | 80.4 µg/L 4% of the EPA limit 2000 µg/L Main supplier: MONTICELLO CITY · 2,393 people · 2014
Highest in the city: 303.72 µg/L — ROCKLAND RANCH · 175 people · 2019 | 4/4 | SYR4 |
| Copper | 246.45 µg/L 19% of the EPA limit 1300 µg/L Main supplier: MONTICELLO CITY · 2,393 people · 2017 | 4/4 | SYR4 |
| Nitrite | 40 µg/L 4% of the EPA limit 1000 µg/L Main supplier: MONTICELLO CITY · 2,393 people · 2014
Highest in the city: 100 µg/L — PACK CREEK WATER COMPANY · 75 people · 2014 | 2/4 | SYR4 |
| TTHM | 92.78 µg/L 116% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: MONTICELLO CITY · 2,393 people · 2019 | 2/4 | SYR4 |
| Chloroform | 88.76 µg/L No EPA limit set Main supplier: MONTICELLO CITY · 2,393 people · 2019 | 2/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 49.48 µg/L 82% of the EPA limit 60 µg/L Main supplier: MONTICELLO CITY · 2,393 people · 2019 | 2/4 | SYR4 |
| Trichloroacetic Acid | 29.27 µg/L No EPA limit set Main supplier: MONTICELLO CITY · 2,393 people · 2019 | 1/4 | SYR4 |
| Dichloroacetic Acid | 22.98 µg/L No EPA limit set Main supplier: MONTICELLO CITY · 2,393 people · 2019 | 1/4 | SYR4 |
| Gross Beta Particle Activity | 6.1 pCi/L No EPA limit set Main supplier: MONTICELLO CITY · 2,393 people · 2016
Highest in the city: 21.7 pCi/L — EASTLAND SPECIAL SERVICE DISTRICT · 90 people · 2019 | 4/4 | SYR4 |
| Monobromoacetic Acid | 14.2 µg/L No EPA limit set Highest in the city: EASTLAND SPECIAL SERVICE DISTRICT · 90 people · 2019 | 1/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 4.2 pCi/L 28% of the EPA limit 15 pCi/L Main supplier: MONTICELLO CITY · 2,393 people · 2016
Highest in the city: 11.74 pCi/L — EASTLAND SPECIAL SERVICE DISTRICT · 90 people · 2019 | 3/4 | SYR4 |
| Lead | 3.195 µg/L 21% of the EPA limit 15 µg/L Main supplier: MONTICELLO CITY · 2,393 people · 2017
Highest in the city: 9.425 µg/L — EASTLAND SPECIAL SERVICE DISTRICT · 90 people · 2019 | 4/4 | SYR4 |
| Arsenic | 8.035 µg/L 80% of the EPA limit 10 µg/L Main supplier: MONTICELLO CITY · 2,393 people · 2014 | 4/4 | SYR4 |
| Bromodichloromethane | 6.86 µg/L No EPA limit set Main supplier: MONTICELLO CITY · 2,393 people · 2019 | 2/4 | SYR4 |
| Toluene | 5.8 µg/L 0.6% of the EPA limit 1000 µg/L Highest in the city: ROCKLAND RANCH · 175 people · 2019 | 1/4 | SYR4 |
| Monochloroacetic Acid | 3.13 µg/L No EPA limit set Main supplier: MONTICELLO CITY · 2,393 people · 2019 | 1/4 | SYR4 |
| Dibromochloromethane | 1.5 µg/L No EPA limit set Main supplier: MONTICELLO CITY · 2,393 people · 2019 | 2/4 | SYR4 |
| Selenium | 0.6000 µg/L 1.2% of the EPA limit 50 µg/L Main supplier: MONTICELLO CITY · 2,393 people · 2014
Highest in the city: 1.28 µg/L — ROCKLAND RANCH · 175 people · 2019 | 4/4 | SYR4 |
| Combined Radium (-226 And -228) | 1.246 pCi/L 25% of the EPA limit 5 pCi/L Highest in the city: EASTLAND SPECIAL SERVICE DISTRICT · 90 people · 2019 | 1/4 | SYR4 |
| Mercury | 0.2000 µg/L 10% of the EPA limit 2 µg/L Highest in the city: EASTLAND SPECIAL SERVICE DISTRICT · 90 people · 2019 | 1/4 | SYR4 |
| Lead | 0.0036 mg/L 24% of the EPA limit 0.0150 mg/L Main supplier: MONTICELLO CITY · 2,393 people · 2023
Highest in the city: 0.0490 mg/L — PACK CREEK WATER COMPANY · 75 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 Monticello
| Supplier | Population served |
|---|---|
| MONTICELLO CITY | 2,393 |
| ROCKLAND RANCH | 175 |
| EASTLAND SPECIAL SERVICE DISTRICT | 90 |
| PACK CREEK WATER COMPANY | 75 |
Frequently asked questions about Monticello tap water
Is Monticello tap water safe to drink?
EPA testing detected 24 contaminants in the water serving Monticello. 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 Monticello?
4 public water suppliers report drinking-water monitoring for Monticello, Utah to the EPA. Each is listed above with its population served.
What contaminants are in Monticello's water?
The contaminants EPA monitoring detected in Monticello include Fluoride, Nitrate, Nitrate-Nitrite, Barium, Copper. 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.