What was found in ZIP 52101
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 |
|---|---|---|---|
| Nitrate | 7400 µg/L 74% of the EPA limit 10000 µg/L Main supplier: DECORAH WATER DEPARTMENT · 7,615 people · 2019 | 1/1 | SYR4 |
| Fluoride | 1000 µg/L 25% of the EPA limit 4000 µg/L Main supplier: DECORAH WATER DEPARTMENT · 7,615 people · 2019 | 1/1 | SYR4 |
| Copper | 514 µg/L 40% of the EPA limit 1300 µg/L Main supplier: DECORAH WATER DEPARTMENT · 7,615 people · 2019 | 1/1 | SYR4 |
| Barium | 104.075 µg/L 5.2% of the EPA limit 2000 µg/L Main supplier: DECORAH WATER DEPARTMENT · 7,615 people · 2012 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 30.96 µg/L 52% of the EPA limit 60 µg/L Main supplier: DECORAH WATER DEPARTMENT · 7,615 people · 2019 | 1/1 | SYR4 |
| TTHM | 24.06 µg/L 30% of the EPA limit 80 µg/L Main supplier: DECORAH WATER DEPARTMENT · 7,615 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 16.8 µg/L No EPA limit set Main supplier: DECORAH WATER DEPARTMENT · 7,615 people · 2019 | 1/1 | SYR4 |
| Lead | 12.875 µg/L 86% of the EPA limit 15 µg/L Main supplier: DECORAH WATER DEPARTMENT · 7,615 people · 2019 | 1/1 | SYR4 |
| Chloroform | 12.78 µg/L No EPA limit set Main supplier: DECORAH WATER DEPARTMENT · 7,615 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 11.41 µg/L No EPA limit set Main supplier: DECORAH WATER DEPARTMENT · 7,615 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 10.574 µg/L No EPA limit set Main supplier: DECORAH WATER DEPARTMENT · 7,615 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 6.218 µg/L No EPA limit set Main supplier: DECORAH WATER DEPARTMENT · 7,615 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 4.062 µg/L No EPA limit set Main supplier: DECORAH WATER DEPARTMENT · 7,615 people · 2019 | 1/1 | SYR4 |
| Antimony, Total | 2.4 µg/L 40% of the EPA limit 6 µg/L Main supplier: DECORAH WATER DEPARTMENT · 7,615 people · 2012 | 1/1 | SYR4 |
| Selenium | 2 µg/L 4% of the EPA limit 50 µg/L Main supplier: DECORAH WATER DEPARTMENT · 7,615 people · 2012 | 1/1 | SYR4 |
| Trichloroacetic Acid | 1.987 µg/L No EPA limit set Main supplier: DECORAH WATER DEPARTMENT · 7,615 people · 2019 | 1/1 | SYR4 |
| Thallium, Total | 1.28 µg/L 64% of the EPA limit 2 µg/L Main supplier: DECORAH WATER DEPARTMENT · 7,615 people · 2012 | 1/1 | SYR4 |
| Bromoform | 1.19 µg/L No EPA limit set Main supplier: DECORAH WATER DEPARTMENT · 7,615 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 1.054 µg/L No EPA limit set Main supplier: DECORAH WATER DEPARTMENT · 7,615 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0094 mg/L 63% of the EPA limit 0.0150 mg/L Main supplier: DECORAH WATER DEPARTMENT · 7,615 people · 2025 | 1/1 | LCR |
| PFBS | 0.0070 µg/L No EPA limit set Main supplier: DECORAH WATER DEPARTMENT · 7,615 people · 2023 | 1/1 | UCMR-5 |
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 52101
| Supplier | State | Population served |
|---|---|---|
| DECORAH WATER DEPARTMENT | IA | 7,615 |
Frequently asked questions about ZIP 52101 tap water
Is the tap water in ZIP 52101 safe to drink?
EPA testing detected 21 contaminants across the water suppliers serving ZIP 52101. 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 52101?
1 public water supplier report EPA drinking-water monitoring for ZIP 52101. Each is listed above with its population served.
What contaminants are in ZIP 52101's water?
EPA monitoring detected Nitrate, Fluoride, Copper, Barium, Total Haloacetic Acids (HAA5), and others across this ZIP's suppliers. The full list with levels and sources is above.