What was found in ZIP 81401
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Chloroform | 33.37 µg/L No EPA limit set Main supplier: TRI COUNTY WCD · 20,490 people · 2019
Highest in the ZIP: 38.34 µg/L — MONTROSE CITY OF · 19,305 people · 2019 | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 29.22 µg/L 49% of the EPA limit 60 µg/L Main supplier: TRI COUNTY WCD · 20,490 people · 2019
Highest in the ZIP: 33.71 µg/L — MONTROSE CITY OF · 19,305 people · 2019 | 4/4 | SYR4 |
| TTHM | 32.485 µg/L 41% of the EPA limit 80 µg/L Main supplier: TRI COUNTY WCD · 20,490 people · 2019
Highest in the ZIP: 33.155 µg/L — MONTROSE CITY OF · 19,305 people · 2019 | 4/4 | SYR4 |
| Dichloroacetic Acid | 14.03 µg/L No EPA limit set Main supplier: TRI COUNTY WCD · 20,490 people · 2019
Highest in the ZIP: 17.505 µg/L — MENOKEN WD · 4,500 people · 2019 | 4/4 | SYR4 |
| Lithium | 14.4 µg/L No EPA limit set Main supplier: TRI COUNTY WCD · 20,490 people · 2024
Highest in the ZIP: 16.9 µg/L — MONTROSE CITY OF · 19,305 people · 2025 | 4/4 | UCMR-5 |
| Trichloroacetic Acid | 14.9625 µg/L No EPA limit set Main supplier: TRI COUNTY WCD · 20,490 people · 2019
Highest in the ZIP: 16.141 µg/L — CHIPETA WD · 3,802 people · 2019 | 4/4 | SYR4 |
| Bromodichloromethane | 3.497 µg/L No EPA limit set Main supplier: TRI COUNTY WCD · 20,490 people · 2019
Highest in the ZIP: 3.6095 µg/L — MONTROSE CITY OF · 19,305 people · 2019 | 4/4 | SYR4 |
| Monochloroacetic Acid | 1.7535 µg/L No EPA limit set Main supplier: TRI COUNTY WCD · 20,490 people · 2019
Highest in the ZIP: 2.122 µg/L — MONTROSE CITY OF · 19,305 people · 2019 | 4/4 | SYR4 |
| Dibromoacetic Acid | 1.15 µg/L No EPA limit set Main supplier: TRI COUNTY WCD · 20,490 people · 2019
Highest in the ZIP: 1.207 µg/L — MONTROSE CITY OF · 19,305 people · 2019 | 4/4 | SYR4 |
| Pfba | 0.0295 µg/L No EPA limit set Highest in the ZIP: CHIPETA WD · 3,802 people · 2023 | 1/4 | UCMR-5 |
| Lead | 0.0060 mg/L 40% of the EPA limit 0.0150 mg/L Main supplier: TRI COUNTY WCD · 20,490 people · 1999 | 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.
Water suppliers serving ZIP 81401
| Supplier | State | Population served |
|---|---|---|
| TRI COUNTY WCD | CO | 20,490 |
| MONTROSE CITY OF | CO | 19,305 |
| MENOKEN WD | CO | 4,500 |
| CHIPETA WD | CO | 3,802 |
Frequently asked questions about ZIP 81401 tap water
Is the tap water in ZIP 81401 safe to drink?
EPA testing detected 11 contaminants across the water suppliers serving ZIP 81401. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 81401?
4 public water suppliers report EPA drinking-water monitoring for ZIP 81401. Each is listed above with its population served.
What contaminants are in ZIP 81401's water?
EPA monitoring detected Chloroform, Total Haloacetic Acids (HAA5), TTHM, Dichloroacetic Acid, Lithium, and others across this ZIP's suppliers. The full list with levels and sources is above.