What was found in Fountain'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 | 3300 µg/L 33% of the EPA limit 10000 µg/L Main supplier: FOUNTAIN CITY OF · 25,130 people · 2019 | 2/3 | SYR4 |
| Nitrate-Nitrite | 2700 µg/L 27% of the EPA limit 10000 µg/L Highest in the city: WIGWAM MUTUAL WC · 1,300 people · 2012 | 1/3 | SYR4 |
| Fluoride | 1950 µg/L 49% of the EPA limit 4000 µg/L Main supplier: FOUNTAIN CITY OF · 25,130 people · 2019
Highest in the city: 2265 µg/L — WIGWAM MUTUAL WC · 1,300 people · 2019 | 2/3 | SYR4 |
| TTHM | 82.82 µg/L 104% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: FOUNTAIN CITY OF · 25,130 people · 2019 | 2/3 | SYR4 |
| Chloroform | 70.4 µg/L No EPA limit set Main supplier: FOUNTAIN CITY OF · 25,130 people · 2019 | 2/3 | SYR4 |
| Lithium | 63.3 µg/L No EPA limit set Main supplier: FOUNTAIN CITY OF · 25,130 people · 2025 | 1/3 | UCMR-5 |
| Total Haloacetic Acids (HAA5) | 61.665 µg/L 103% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: FOUNTAIN CITY OF · 25,130 people · 2019 | 2/3 | SYR4 |
| Barium | 47.5 µg/L 2.4% of the EPA limit 2000 µg/L Main supplier: FOUNTAIN CITY OF · 25,130 people · 2019 | 2/3 | SYR4 |
| Trichloroacetic Acid | 46.3 µg/L No EPA limit set Main supplier: FOUNTAIN CITY OF · 25,130 people · 2019 | 1/3 | SYR4 |
| Bromoform | 6.48 µg/L No EPA limit set Main supplier: FOUNTAIN CITY OF · 25,130 people · 2019
Highest in the city: 44.4 µg/L — WIGWAM MUTUAL WC · 1,300 people · 2019 | 2/3 | SYR4 |
| Selenium | 16 µg/L 32% of the EPA limit 50 µg/L Main supplier: FOUNTAIN CITY OF · 25,130 people · 2019
Highest in the city: 38 µg/L — WIGWAM MUTUAL WC · 1,300 people · 2012 | 2/3 | SYR4 |
| Dibromochloromethane | 7.98 µg/L No EPA limit set Main supplier: FOUNTAIN CITY OF · 25,130 people · 2019
Highest in the city: 26.1 µg/L — WIGWAM MUTUAL WC · 1,300 people · 2019 | 2/3 | SYR4 |
| Dichloroacetic Acid | 20 µg/L No EPA limit set Main supplier: FOUNTAIN CITY OF · 25,130 people · 2019 | 2/3 | SYR4 |
| Bromodichloromethane | 18 µg/L No EPA limit set Main supplier: FOUNTAIN CITY OF · 25,130 people · 2019 | 2/3 | SYR4 |
| Dibromoacetic Acid | 3.705 µg/L No EPA limit set Main supplier: FOUNTAIN CITY OF · 25,130 people · 2019
Highest in the city: 16.15 µg/L — WIGWAM MUTUAL WC · 1,300 people · 2019 | 2/3 | SYR4 |
| Combined Uranium | 7.2 µg/L 24% of the EPA limit 30 µg/L Main supplier: FOUNTAIN CITY OF · 25,130 people · 2017
Highest in the city: 9.4 µg/L — WIGWAM MUTUAL WC · 1,300 people · 2014 | 2/3 | SYR4 |
| Gross Alpha, Excl. Radon And U | 7.08 pCi/L 47% of the EPA limit 15 pCi/L Main supplier: FOUNTAIN CITY OF · 25,130 people · 2017 | 2/3 | SYR4 |
| Monochloroacetic Acid | 2.095 µg/L No EPA limit set Main supplier: FOUNTAIN CITY OF · 25,130 people · 2019 | 1/3 | SYR4 |
| Monobromoacetic Acid | 2.06 µg/L No EPA limit set Highest in the city: WIGWAM MUTUAL WC · 1,300 people · 2019 | 1/3 | SYR4 |
| Combined Radium (-226 And -228) | 1.372 pCi/L 27% of the EPA limit 5 pCi/L Main supplier: FOUNTAIN CITY OF · 25,130 people · 2017 | 2/3 | SYR4 |
| Chromium | 1.37 µg/L 1.4% of the EPA limit 100 µg/L Main supplier: FOUNTAIN CITY OF · 25,130 people · 2019 | 1/3 | SYR4 |
| Xylenes, Total | 1.1 µg/L 0% of the EPA limit 10000 µg/L Highest in the city: WIGWAM MUTUAL WC · 1,300 people · 2019 | 1/3 | SYR4 |
| Carbon Tetrachloride | 0.5000 µg/L 10% of the EPA limit 5 µg/L Main supplier: FOUNTAIN CITY OF · 25,130 people · 2019 | 1/3 | SYR4 |
| Oxamyl | 0.1000 µg/L 0.1% of the EPA limit 200 µg/L Main supplier: FOUNTAIN CITY OF · 25,130 people · 2019 | 1/3 | SYR4 |
| Pentachlorophenol | 0.1000 µg/L 10% of the EPA limit 1 µg/L Main supplier: FOUNTAIN CITY OF · 25,130 people · 2019 | 1/3 | SYR4 |
| Pfpea | 0.0767 µg/L No EPA limit set Main supplier: FOUNTAIN CITY OF · 25,130 people · 2025 | 1/3 | UCMR-5 |
| Pfhxa | 0.0508 µg/L No EPA limit set Main supplier: FOUNTAIN CITY OF · 25,130 people · 2025 | 1/3 | UCMR-5 |
| Pfba | 0.0338 µg/L No EPA limit set Main supplier: FOUNTAIN CITY OF · 25,130 people · 2025 | 1/3 | UCMR-5 |
| Lead | 0.0044 mg/L 29% of the EPA limit 0.0150 mg/L Main supplier: FOUNTAIN CITY OF · 25,130 people · 2025
Highest in the city: 0.0055 mg/L — WIGWAM MUTUAL WC · 1,300 people · 2025 | 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 Fountain
| Supplier | Population served |
|---|---|
| FOUNTAIN CITY OF | 25,130 |
| WIGWAM MUTUAL WC | 1,300 |
| MOUNTAIN SHADOWS MHP | 56 |
Frequently asked questions about Fountain tap water
Is Fountain tap water safe to drink?
EPA testing detected 29 contaminants in the water serving Fountain. 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 Fountain?
3 public water suppliers report drinking-water monitoring for Fountain, Colorado to the EPA. Each is listed above with its population served.
What contaminants are in Fountain's water?
The contaminants EPA monitoring detected in Fountain include Nitrate, Nitrate-Nitrite, Fluoride, 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.