What was found in ZIP 80621
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 |
|---|---|---|---|
| TTHM | 62.9685 µg/L 79% of the EPA limit 80 µg/L Main supplier: FREDERICK TOWN OF · 17,173 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 53 µg/L 88% of the EPA limit 60 µg/L Main supplier: FREDERICK TOWN OF · 17,173 people · 2019 | 2/2 | SYR4 |
| Chloroform | 48.0035 µg/L No EPA limit set Main supplier: FREDERICK TOWN OF · 17,173 people · 2019
Highest in the ZIP: 50.775 µg/L — CENTRAL WELD CNTY WD · 7,662 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 24.265 µg/L No EPA limit set Main supplier: FREDERICK TOWN OF · 17,173 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 22.365 µg/L No EPA limit set Main supplier: FREDERICK TOWN OF · 17,173 people · 2019
Highest in the ZIP: 22.65 µg/L — CENTRAL WELD CNTY WD · 7,662 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 5.607 µg/L No EPA limit set Main supplier: FREDERICK TOWN OF · 17,173 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 4.332 µg/L No EPA limit set Main supplier: FREDERICK TOWN OF · 17,173 people · 2019
Highest in the ZIP: 5.4 µg/L — CENTRAL WELD CNTY WD · 7,662 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 1.696 µg/L No EPA limit set Main supplier: FREDERICK TOWN OF · 17,173 people · 2019 | 1/2 | SYR4 |
| Bromoform | 0.5000 µg/L No EPA limit set Main supplier: FREDERICK TOWN OF · 17,173 people · 2019 | 1/2 | SYR4 |
| Lead | 0.0029 mg/L 19% of the EPA limit 0.0150 mg/L Main supplier: FREDERICK TOWN OF · 17,173 people · 2025
Highest in the ZIP: 0.0060 mg/L — CENTRAL WELD CNTY WD · 7,662 people · 1999 | 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 80621
| Supplier | State | Population served |
|---|---|---|
| FREDERICK TOWN OF | CO | 17,173 |
| CENTRAL WELD CNTY WD | CO | 7,662 |
Frequently asked questions about ZIP 80621 tap water
Is the tap water in ZIP 80621 safe to drink?
EPA testing detected 10 contaminants across the water suppliers serving ZIP 80621. 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 80621?
2 public water suppliers report EPA drinking-water monitoring for ZIP 80621. Each is listed above with its population served.
What contaminants are in ZIP 80621's water?
EPA monitoring detected TTHM, Total Haloacetic Acids (HAA5), Chloroform, Dichloroacetic Acid, Trichloroacetic Acid, and others across this ZIP's suppliers. The full list with levels and sources is above.