What was found in Alpine'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 | 430 µg/L 4.3% of the EPA limit 10000 µg/L Main supplier: ALPINE, TOWN OF · 1,300 people · 2019
Highest in the city: 3520 µg/L — NORDIC RANCHES WATER, LLC. · 465 people · 2019 | 3/4 | SYR4 |
| Nitrate | 2320 µg/L 23% of the EPA limit 10000 µg/L Highest in the city: NORTH ALPINE I&S DISTRICT · 200 people · 2019 | 1/4 | SYR4 |
| Copper | 210 µg/L 16% of the EPA limit 1300 µg/L Main supplier: ALPINE, TOWN OF · 1,300 people · 2019
Highest in the city: 600.9 µg/L — NORTH ALPINE I&S DISTRICT · 200 people · 2018 | 3/4 | SYR4 |
| Fluoride | 300 µg/L 7.5% of the EPA limit 4000 µg/L Main supplier: ALPINE, TOWN OF · 1,300 people · 2018
Highest in the city: 470 µg/L — NORTH ALPINE I&S DISTRICT · 200 people · 2018 | 2/4 | SYR4 |
| Barium | 200 µg/L 10% of the EPA limit 2000 µg/L Main supplier: ALPINE, TOWN OF · 1,300 people · 2018
Highest in the city: 203.6 µg/L — NORTH ALPINE I&S DISTRICT · 200 people · 2018 | 2/4 | SYR4 |
| Lead | 17.95 µg/L 120% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: ALPINE, TOWN OF · 1,300 people · 2019 | 3/4 | SYR4 |
| TTHM | 9.37 µg/L 12% of the EPA limit 80 µg/L Main supplier: ALPINE, TOWN OF · 1,300 people · 2019 | 1/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 3.985 pCi/L 27% of the EPA limit 15 pCi/L Main supplier: ALPINE, TOWN OF · 1,300 people · 2019
Highest in the city: 6.108 pCi/L — NORTH ALPINE I&S DISTRICT · 200 people · 2019 | 3/4 | SYR4 |
| Combined Radium (-226 And -228) | 0.8000 pCi/L 16% of the EPA limit 5 pCi/L Main supplier: ALPINE, TOWN OF · 1,300 people · 2019
Highest in the city: 4.95 pCi/L — NORDIC RANCHES WATER, LLC. · 465 people · 2017 | 3/4 | SYR4 |
| Dibromochloromethane | 3.65 µg/L No EPA limit set Main supplier: ALPINE, TOWN OF · 1,300 people · 2019 | 1/4 | SYR4 |
| Bromodichloromethane | 2.81 µg/L No EPA limit set Main supplier: ALPINE, TOWN OF · 1,300 people · 2019 | 1/4 | SYR4 |
| Bromoform | 2.42 µg/L No EPA limit set Main supplier: ALPINE, TOWN OF · 1,300 people · 2019 | 1/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 2.08 µg/L 3.5% of the EPA limit 60 µg/L Main supplier: ALPINE, TOWN OF · 1,300 people · 2019 | 1/4 | SYR4 |
| Selenium | 2 µg/L 4% of the EPA limit 50 µg/L Main supplier: ALPINE, TOWN OF · 1,300 people · 2018 | 1/4 | SYR4 |
| Chloroform | 1.4585 µg/L No EPA limit set Main supplier: ALPINE, TOWN OF · 1,300 people · 2019 | 1/4 | SYR4 |
| Thallium, Total | 0.4000 µg/L 20% of the EPA limit 2 µg/L Main supplier: ALPINE, TOWN OF · 1,300 people · 2018
Highest in the city: 1.4 µg/L — NORDIC RANCHES WATER, LLC. · 465 people · 2017 | 3/4 | SYR4 |
| Dibromoacetic Acid | 1.365 µg/L No EPA limit set Main supplier: ALPINE, TOWN OF · 1,300 people · 2019 | 1/4 | SYR4 |
| Combined Uranium | 0.6000 µg/L 2% of the EPA limit 30 µg/L Main supplier: ALPINE, TOWN OF · 1,300 people · 2019
Highest in the city: 1.3 µg/L — NORDIC RANCHES WATER, LLC. · 465 people · 2017 | 3/4 | SYR4 |
| Dichloroacetic Acid | 1.1 µg/L No EPA limit set Main supplier: ALPINE, TOWN OF · 1,300 people · 2019 | 1/4 | SYR4 |
| Antimony, Total | 1.05 µg/L 18% of the EPA limit 6 µg/L Highest in the city: NORTH ALPINE I&S DISTRICT · 200 people · 2018 | 1/4 | SYR4 |
| Chromium | 1 µg/L 1% of the EPA limit 100 µg/L Highest in the city: NORTH ALPINE I&S DISTRICT · 200 people · 2018 | 1/4 | SYR4 |
| Beryllium, Total | 0.4030 µg/L 10% of the EPA limit 4 µg/L Highest in the city: NORTH ALPINE I&S DISTRICT · 200 people · 2018 | 1/4 | SYR4 |
| Mercury | 0.0430 µg/L 2.2% of the EPA limit 2 µg/L Highest in the city: NORTH ALPINE I&S DISTRICT · 200 people · 2018 | 1/4 | SYR4 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: ALPINE, TOWN OF · 1,300 people · 2023
Highest in the city: 0.0060 mg/L — NORTH ALPINE I&S DISTRICT · 200 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 Alpine
| Supplier | Population served |
|---|---|
| ALPINE, TOWN OF | 1,300 |
| NORDIC RANCHES WATER, LLC. | 465 |
| NORTH ALPINE I&S DISTRICT | 200 |
| TOWN OF ALPINE - MEGA WELL | 120 |
Frequently asked questions about Alpine tap water
Is Alpine tap water safe to drink?
EPA testing detected 24 contaminants in the water serving Alpine. 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 Alpine?
4 public water suppliers report drinking-water monitoring for Alpine, Wyoming to the EPA. Each is listed above with its population served.
What contaminants are in Alpine's water?
The contaminants EPA monitoring detected in Alpine include Nitrate-Nitrite, Nitrate, Copper, Fluoride, Barium. 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.