What was found in Fort Lupton'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 | 100 µg/L 1% of the EPA limit 10000 µg/L Main supplier: FT LUPTON CITY OF · 12,099 people · 2019
Highest in the city: 10800 µg/L — WATTENBERG IMPROVEMENT ASSOC · 350 people · 2019 | 2/5 | SYR4 |
| Fluoride | 1990 µg/L 50% of the EPA limit 4000 µg/L Highest in the city: FOX HILL WATER ASSOCIATION INC · 44 people · 2017 | 2/5 | SYR4 |
| Barium | 77 µg/L 3.9% of the EPA limit 2000 µg/L Highest in the city: FOX HILL WATER ASSOCIATION INC · 44 people · 2017 | 2/5 | SYR4 |
| TTHM | 51.58 µg/L 64% of the EPA limit 80 µg/L Main supplier: FT LUPTON CITY OF · 12,099 people · 2019
Highest in the city: 71.024 µg/L — ARISTOCRAT RANCHETTE WATER PROJECT · 1,715 people · 2019 | 3/5 | SYR4 |
| Chloroform | 48.48 µg/L No EPA limit set Main supplier: FT LUPTON CITY OF · 12,099 people · 2019
Highest in the city: 62.225 µg/L — ARISTOCRAT RANCHETTE WATER PROJECT · 1,715 people · 2019 | 2/5 | SYR4 |
| Total Haloacetic Acids (HAA5) | 46.592 µg/L 78% of the EPA limit 60 µg/L Main supplier: FT LUPTON CITY OF · 12,099 people · 2019
Highest in the city: 61.5 µg/L — ARISTOCRAT RANCHETTE WATER PROJECT · 1,715 people · 2019 | 4/5 | SYR4 |
| Trichloroacetic Acid | 20.111 µg/L No EPA limit set Main supplier: FT LUPTON CITY OF · 12,099 people · 2019
Highest in the city: 25.22 µg/L — ARISTOCRAT RANCHETTE WATER PROJECT · 1,715 people · 2019 | 2/5 | SYR4 |
| Dichloroacetic Acid | 20.178 µg/L No EPA limit set Main supplier: FT LUPTON CITY OF · 12,099 people · 2019
Highest in the city: 24.52 µg/L — ARISTOCRAT RANCHETTE WATER PROJECT · 1,715 people · 2019 | 2/5 | SYR4 |
| Monochloroacetic Acid | 1.7 µg/L No EPA limit set Main supplier: FT LUPTON CITY OF · 12,099 people · 2019
Highest in the city: 6.678 µg/L — ARISTOCRAT RANCHETTE WATER PROJECT · 1,715 people · 2019 | 3/5 | SYR4 |
| Bromodichloromethane | 3.99 µg/L No EPA limit set Main supplier: FT LUPTON CITY OF · 12,099 people · 2019
Highest in the city: 5.36 µg/L — ARISTOCRAT RANCHETTE WATER PROJECT · 1,715 people · 2019 | 3/5 | SYR4 |
| Selenium | 5.06 µg/L 10% of the EPA limit 50 µg/L Highest in the city: FOX HILL WATER ASSOCIATION INC · 44 people · 2017 | 2/5 | SYR4 |
| Dibromochloromethane | 2.95 µg/L No EPA limit set Highest in the city: WATTENBERG IMPROVEMENT ASSOC · 350 people · 2018 | 2/5 | SYR4 |
| Bromoform | 2.17 µg/L No EPA limit set Highest in the city: WATTENBERG IMPROVEMENT ASSOC · 350 people · 2018 | 1/5 | SYR4 |
| Dibromoacetic Acid | 2.165 µg/L No EPA limit set Highest in the city: WATTENBERG IMPROVEMENT ASSOC · 350 people · 2018 | 1/5 | SYR4 |
| Mercury | 1.6 µg/L 80% of the EPA limit 2 µg/L Highest in the city: WATTENBERG IMPROVEMENT ASSOC · 350 people · 2018 | 1/5 | SYR4 |
| Arsenic | 1.5 µg/L 15% of the EPA limit 10 µg/L Highest in the city: FOX HILL WATER ASSOCIATION INC · 44 people · 2017 | 2/5 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 1.2 µg/L 20% of the EPA limit 6 µg/L Highest in the city: WATTENBERG IMPROVEMENT ASSOC · 350 people · 2019 | 1/5 | SYR4 |
| Chromium | 1 µg/L 1% of the EPA limit 100 µg/L Highest in the city: WATTENBERG IMPROVEMENT ASSOC · 350 people · 2018 | 1/5 | SYR4 |
| Antimony, Total | 0.8400 µg/L 14% of the EPA limit 6 µg/L Highest in the city: FOX HILL WATER ASSOCIATION INC · 44 people · 2017 | 1/5 | SYR4 |
| Gross Alpha, Excl. Radon And U | 0.4000 pCi/L 2.7% of the EPA limit 15 pCi/L Main supplier: FT LUPTON CITY OF · 12,099 people · 2012 | 1/5 | SYR4 |
| Combined Radium (-226 And -228) | 0.1000 pCi/L 2% of the EPA limit 5 pCi/L Highest in the city: FOX HILL WATER ASSOCIATION INC · 44 people · 2012 | 1/5 | SYR4 |
| Lead | 0.0040 mg/L 27% of the EPA limit 0.0150 mg/L Main supplier: FT LUPTON CITY OF · 12,099 people · 2025 | 5/5 | 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 Fort Lupton
| Supplier | Population served |
|---|---|
| FT LUPTON CITY OF | 12,099 |
| ARISTOCRAT RANCHETTE WATER PROJECT | 1,715 |
| WATTENBERG IMPROVEMENT ASSOC | 350 |
| COPPER KEY VILLAGE MHP | 260 |
| FOX HILL WATER ASSOCIATION INC | 44 |
Frequently asked questions about Fort Lupton tap water
Is Fort Lupton tap water safe to drink?
EPA testing detected 22 contaminants in the water serving Fort Lupton. 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 Fort Lupton?
5 public water suppliers report drinking-water monitoring for Fort Lupton, Colorado to the EPA. Each is listed above with its population served.
What contaminants are in Fort Lupton's water?
The contaminants EPA monitoring detected in Fort Lupton include Nitrate, Fluoride, Barium, TTHM, Chloroform. 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.