What was found in ZIP 80452
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 |
|---|---|---|---|
| Fluoride | 420 µg/L 11% of the EPA limit 4000 µg/L Main supplier: BLACK HAWK CITY OF · 15,167 people · 2012
Highest in the ZIP: 954 µg/L — IDAHO SPRINGS CITY OF · 10,432 people · 2019 | 2/2 | SYR4 |
| Nitrate | 456 µg/L 4.6% of the EPA limit 10000 µg/L Main supplier: BLACK HAWK CITY OF · 15,167 people · 2019 | 2/2 | SYR4 |
| Chlorite | 445 µg/L 45% of the EPA limit 1000 µg/L Main supplier: BLACK HAWK CITY OF · 15,167 people · 2019 | 1/2 | SYR4 |
| Nitrate-Nitrite | 374 µg/L 3.7% of the EPA limit 10000 µg/L Main supplier: BLACK HAWK CITY OF · 15,167 people · 2016 | 2/2 | SYR4 |
| Barium | 28.95 µg/L 1.4% of the EPA limit 2000 µg/L Main supplier: BLACK HAWK CITY OF · 15,167 people · 2012
Highest in the ZIP: 145.6 µg/L — IDAHO SPRINGS CITY OF · 10,432 people · 2019 | 2/2 | SYR4 |
| TTHM | 82.795 µg/L 103% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: BLACK HAWK CITY OF · 15,167 people · 2019
Highest in the ZIP: 100.6 µg/L — IDAHO SPRINGS CITY OF · 10,432 people · 2019 | 2/2 | SYR4 |
| Chloroform | 25.48 µg/L No EPA limit set Main supplier: BLACK HAWK CITY OF · 15,167 people · 2019
Highest in the ZIP: 94.44 µg/L — IDAHO SPRINGS CITY OF · 10,432 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 34.75 µg/L 58% of the EPA limit 60 µg/L Main supplier: BLACK HAWK CITY OF · 15,167 people · 2019
Highest in the ZIP: 78.925 µg/L — IDAHO SPRINGS CITY OF · 10,432 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 7.1 µg/L No EPA limit set Main supplier: BLACK HAWK CITY OF · 15,167 people · 2019
Highest in the ZIP: 53.4 µg/L — IDAHO SPRINGS CITY OF · 10,432 people · 2019 | 2/2 | SYR4 |
| Lithium | 33 µg/L No EPA limit set Main supplier: BLACK HAWK CITY OF · 15,167 people · 2024 | 1/2 | UCMR-5 |
| Dichloroacetic Acid | 13.57 µg/L No EPA limit set Main supplier: BLACK HAWK CITY OF · 15,167 people · 2019
Highest in the ZIP: 32.3995 µg/L — IDAHO SPRINGS CITY OF · 10,432 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 24.155 µg/L No EPA limit set Main supplier: BLACK HAWK CITY OF · 15,167 people · 2019 | 2/2 | SYR4 |
| Bromoform | 17.3 µg/L No EPA limit set Main supplier: BLACK HAWK CITY OF · 15,167 people · 2019 | 1/2 | SYR4 |
| Bromodichloromethane | 14.6 µg/L No EPA limit set Main supplier: BLACK HAWK CITY OF · 15,167 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 11.725 µg/L No EPA limit set Main supplier: BLACK HAWK CITY OF · 15,167 people · 2019 | 1/2 | SYR4 |
| Xylenes, Total | 2.58 µg/L 0% of the EPA limit 10000 µg/L Main supplier: BLACK HAWK CITY OF · 15,167 people · 2019 | 1/2 | SYR4 |
| Monobromoacetic Acid | 2.5 µg/L No EPA limit set Main supplier: BLACK HAWK CITY OF · 15,167 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 1.19 µg/L No EPA limit set Main supplier: BLACK HAWK CITY OF · 15,167 people · 2019
Highest in the ZIP: 2.442 µg/L — IDAHO SPRINGS CITY OF · 10,432 people · 2019 | 2/2 | SYR4 |
| Antimony, Total | 2 µg/L 33% of the EPA limit 6 µg/L Main supplier: BLACK HAWK CITY OF · 15,167 people · 2012 | 1/2 | SYR4 |
| Combined Uranium | 1.2 µg/L 4% of the EPA limit 30 µg/L Main supplier: BLACK HAWK CITY OF · 15,167 people · 2017 | 1/2 | SYR4 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: BLACK HAWK CITY OF · 15,167 people · 2025
Highest in the ZIP: 0.0070 mg/L — IDAHO SPRINGS CITY OF · 10,432 people · 2025 | 2/2 | 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 80452
| Supplier | State | Population served |
|---|---|---|
| BLACK HAWK CITY OF | CO | 15,167 |
| IDAHO SPRINGS CITY OF | CO | 10,432 |
Frequently asked questions about ZIP 80452 tap water
Is the tap water in ZIP 80452 safe to drink?
EPA testing detected 21 contaminants across the water suppliers serving ZIP 80452. 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 80452?
2 public water suppliers report EPA drinking-water monitoring for ZIP 80452. Each is listed above with its population served.
What contaminants are in ZIP 80452's water?
EPA monitoring detected Fluoride, Nitrate, Chlorite, Nitrate-Nitrite, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.